CIA-UAP-015, Project Blue Book Special Report No. 14 (Analysis of Reports of Unidentified Aerial Objects) 

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Ma, Antonine see seen 1842 of the National Defense 2, 5 = 283 ---+42) = 315 payed (PLACE FORM 490 HERE ) OFFICIAL RECORD cAs. The Agenc in accc addition Records Reviewed by clipped terks is compute 11|21|54 new RETURN IMMEDIATELY AFTER USE TO THE CIA ARCHIVES AND RECORDS CENTER

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FORM 2250 2, 80÷283 - -1421÷ 315 pagen (PLACE FORM 490 HERE ) OFFICIAL RECORD COPY WARNING The attached documents) must be safeguarded. It is the Agency's Official Historical Record and must be preserved in accordance with the Federal Records Act of 1950. For additional information, call the Chief, CIA Archives and Records Center, extension 2468. RETURN IMMEDIATELY AFTER USE TO THE CIA ARCHIVES AND RECORDS CENTER

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PROJECT BLUE BOOK ASD/A file SPECIAL REPORT NO. 14 280 (ANALYSIS OF REPORTS OF UNIDENTIFIED AERIAL OBJECTS) PROJECT NO. 10073 5 MAY 1955 FOR OFFICIL USE ONLY (AFR 190-16) AIR TECHNICAL INTELLIGENCE CENTER WRIGHT-PATTERSON AIR FORCE BASE OHIO Copy No. _ 35

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PROJECT BLUE BOOK SPECIAL REPORT NO. 14 (ANALYSIS OF REPORTS OF UNIDENTIFIED AERIAL OBJECTS) PROJECT NO. 10073 5 MAY 1955 FOR OFFICIAL USE ONLY (AFR 190-16) AIR TECHNICAL INTELLIGENCE CENTER WRIGHT -PATTERSON AIR FORCE BASE OHIO No copyright material le contained in this publication.

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TABLE OF CONTENTS SUMMARY . INTRODUCTION ORIGIN AND NATURE OF DATA REDUCTION OF DATA TO MECHANIZED COMPUTATION FORM Questionnaire . Coding System and Work Sheet Identification of Working Papers. Evaluation of Individual Reports. ANALYSIS OF THE DATA... . ... Frequency and Percentage Distributions by Characteristics Graphical Presentation . Advanced Study of the Data Position of the Sun Relative to the Observer Statistical Chi Square Test The "Flying Saucer" Model CONCLUSIONS APPENDIX A. TABULATION OF FREQUENCY AND PERCENTAGE DISTRIBUTIONS BY CHARACTERISTICS APPENDIX B. WORKING PAPER FORMS LIST OF ILLUSTRATIONS Figure 1 Frequency of Sightings by Year for Object, Unit, and All Sightings Figure 2 Distribution of Evaluations of Object, Unit, and All Sightings for All Years Figure 3 Distribution of Object Sightings by Evaluation for All Years With Comparisons of Each Year for Each Evaluation Group • Figure 4 Distribution of Object Sightings by Evaluation for All Years and Each Year Figure 5 Distribution of Object Sightings by Evaluation Within Months for All Years . Figure 6 Distribution of Object Sightings by Certain and Doubtful Evaluations for All Years and Each Year Figure 7 Frequency of Object Sightings and Unknown Object Evaluations by Months, 1947-1952 Figure 8 Distribution of Object Sighting by Grating Reliability Groups With Figure 9 Distribution a tect sand Rad mong the Four Sighting Rollability Figure 10 Distribution of All Sightings by Sighting Reliability Groups, Segregated by Military and Civilian Observers, With Evaluation Distribution for Each Segregation .. • Figure 11 Dieriation Dorict a tina by Boor Cal Colors of Objecele) With Figure 12 Distributilat On bit Sighting by Nacher of Objecte Seen por Sighting Figure 13 Distribution Obtat Duratio y Duration of Sighting With Evaluation iii Page vii 1 • • 10 14 14 16 16 60 76 94 95 255 17 18 19 20 21 22 23 24 25 26 27 28 29

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LIST OF ILLUSTRATIONS (Continued) Figure 14 Distribution of Object Sightings by Months Among the Eight Duration Groups for All Years Figure 15 Distribution of Object Sightings by Shape of Object(s) Reported With Evaluation Distribution for Each Shape Group. Figure 16 Distribution of Object Sightings by Reported Speed of Object(s) With Evaluation Distribution for Each Speed Group . . ...... Figure 17 Distribution of All Sightings by Observer Location for All Years and Each Year . r..... Figure 18 Comparison of Known and Unknown Object Sightings by Color, 1947-1952 . . . ...... Figure 19 Comparison of Known and Unknown Object Sightings by Number of Objects per Sighting, 1947-1952 Figure 20 Comparison of Known and Unknown Object Sightings by Speed, 1947-1952 Figure 21 Comparison of Known and Unknown Object Sightings by Duration, 1947-1952 Figure 22 Comparison of Known and Unknown Object Sightings by Shape, 1947-1952 • Figure 23 Comparison of Known and Unknown Object Sightings by Light Brightness, 1947-1952 Figure 24 Comparison of Monthly Distribution of Object Sightings Evaluated as Astronomical Versus Total Object Sightings Less Astronomical. Figure 25 Comparison of Monthly Distribution of Object Sightings Evaluated as Aircraft Versus Total Object Sightings Less Aircraft Figure 26 Comparison of Monthly Distribution of Object Sightings Evaluated as Balloon Versus Total Object Sightings Less Balloon. Figure 27 Comparison of Monthly Distribution of Object Sightings Evaluated as Insufficient Information Versus Total Object Sightings Less Insufficient Information Figure 28 Comparison of Monthly Distribution of Object Sightings Evaluated as Other Versus Total Object Sightings Less Other Figure 29 Comparison of Monthly Distribution of Object Sightings Evaluated as Unknown Versus Total Object Sightings Less Unknown Figure 30 Characteristics Profiles of Object Sightings by Total Sample, Known Evaluations, and Individual Known Evaluations, With Unknown Evaluations Superimposed Figure 31 Frequency of Object, Unit, and All Sightings Within the U. S., 1947-1952, by Subdivisions of One Degree of Latitude and Longitude Figure 32 Distribution of Object Sightings by Evaluation for the Twelve Regional Areas of the U. S., With the Strategic Areas Located Comparison of Evaluation of Object Sightings in the Strategic Areas of the Central East Region Figure 34 Comparison of Evaluation of Object Sightings in the Strategic Areas of the Central Midwest Region Figure 35 Comparison of Evaluation of Object Sightings in the Strategic Areas of the Central Farwest Region Figure 36 Comparison of Evaluation of Object Sightings in the Strategic Areas of the South Midwest Region Figure 37 Comparison of Evaluation of Object Sightings in the Strategic Areas of the South West Region Page 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 iv

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LIST OF ILLUSTRATIONS (Continued) Page Figure 38 Comparison of Evaluation of Object Sightings in the Strategic Areas of the South Farwest Region Figure 39 Diagram of a Celestial Sphere. . . .....• • Figure 40 Frequency of Object Sightings by Angle of Elevation of the Sun, Intervals of 10 Degrees of Angle. Figure 41 Frequency of Object Sightings by Local Sun Time, Intervals of One Hour Table I Object Sightings . . . . . . . . .. • Table Il Chi Square Test of Knowns Versus Unknowns on the Basis of Color Table III Chi Square Test of Knowns Versus Unknowns on the Basis of Number Table IV Chi Square Test of Knowns Versus Unknowns on the Basis of Shape Table V Chi Square Test of Knowns Versus Unknowns on the Basis of Duration of Observation Table VI Chi Square Test of Knowns Versus Unknowns on the Basis of Speed Table VII Chi Square Test of Knowns Versus Unknowns on the Basis of Light Brightness Table VIII Chi Square Test of Revised Knowns Versus Unknowns on the Basis of Color . Table IX Chi Square Test of Revised Knowns Versus Unknowns on the Basis of Number. Table X Chi Square Test of Revised Knowns Versus Unknowns on the Basis of Shape Table XI Chi Square Test of Revised Knowns Versus Unknowns on the Basis of Duration of Observation Table XII Chi Square Test of Revised Knowns Versus Unknowns on the Basis of Speed Table XIII Chi Square Test of Revised Knowns Versus Unknowns on the Basis of Light Brightness. • • 54 56 •••• ...•...• ...••• ...... .... •... 57 59 60 62 63 64 65 66 67 70 71 72 73 74 75 V and vi

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SUMMARY Reports of unidentified aerial objects (popularly termed "flying saucers" or "flying discs") have been received by the U.S. Air Force since mid-1947 from many and diverse sources. Although there was no evidence that the unexplained reports of unidentified objects constituted a threat to the security of the U.S., the Air Force determined that all reports of unidentified aerial objects should be investigated and evaluated to determine if "flying saucers" represented technological developments not known to this country. In order to discover any pertinent trend or pattern inherent in the data, and to evaluate or explain any trend or pattern found, appropriate methods of reducing these data from reports of unidentified aerial objects to a form amenable to scientific appraisal were employed. In general, the original data upon which this study was based consisted of impressions and interpretations of apparently unexplainable events, and seldom contained reliable measurements of physical attributes. This subjectivity of the data presented a major limitation to the drawing of significant conclusions, but did not invalidate the application of scientific methods of study. The reports received by the U.S. Air Force on unidentified aerial objects were reduced to IBM punched-card abstracts of the data by means of logically developed forms and standardized evaluation procedures. Evaluation of sighting reports, a crucial step in the preparation of the data for statistical treatment, consisted of an appraisal of the reports and the subsequent categorization of the object or objects described in each report. A detailed description of this phase of the study stresses the careful attempt to maintain complete objectivity and consistency. Analysis of the refined and evaluated data derived from the original reports of sightings consisted of (1) a systematic attempt to ferret out any distinguishing characteristics inherent in the data of any of their segments, (2) a concentrated study of any trend or pattern found, and (3) an attempt to determine the probability that any of the UNKNOWNS represent observa- tions of technological developments not known to this country. The first step in the analysis of the data revealed the existence of certain apparent similarities between cases of objects definitely identified and those not identified. Statistical methods of testing when applied indicated a low probability that these apparent similarities were significant. An attempt to determine the probability that any of the UNKNOWNS represented observations of technological developments not known to this country necessi- tated a thorough re-examination and re-evaluation of the cases of objects not originally identified; this led to the conclusion that this probability was very small. The special study which resulted in this report (Analysis of Reports of Unidentified Aerial Objects, 5 May 1955) started in 1953. To provide the study group with a complete set of files, the information cut-off date was established as of the end of 1952. It will accordingly be noted that the statistics contained in all charts and tables in this report are terminated vii

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with the year 1952. In these charts, 320l cases have been used. As the study progressed, a constant program was maintained for the purpose of making comparisons between the current cases received after 1 January 1953, and those being used for the report. This was done in order that any change or significant trend which might arise from current developments could be incorporated in the summary of this report. The 1953 and 1954 cases show a general and expected trend of increasing percentages in the finally identified categories. They also show decreasing percentages in categories where there was insufficient informa- tion and those where the phenomena could not be explained. This trend had been anticipated in the light of improved reporting and investigating pro- cedures. Official reports on hand at the end of 1954 totaled 4834. Of these, 425 were produced in 1953 and 429 in 1954. These 1953 and 1954 indi- vidual reports (a total of 854), were evaluated on the same basis as were those received before the end of 1952. The results are as follows: Balloons - 16% Aircraft - 20% Astronomical - 25% Other - 13% Insufficient Info - 17% Unknown - 9% • As the study of the current cases progressed, it became increasingly obvious that if reporting and investigating procedures could be further improved, the percentages of those cases which contained insufficient information and those remaining unexplained would be greatly reduced. The key to a higher percentage of solutions appeared to be in rapid "on the spot" investigations on the ba to be i by trained personnel. On the basis of this, a revised program was estab- lished by AF Reg. 200-2 Subject: "Unidentified Flying Objects Reporting" (Short Title: UFOB) dated 12 August 1954. This new program, which had begun to show marked results before January 1955, provided primarily that the 4602d Air Intelligence Service Squadron (Air Defense Command) would carry out all field investigations. l'his squadron has sufficient units and is so deployed as to be able to arrive "on the spot" within a very short time after a report is received. After treatment by the 4602d AISS, all information is supplied to the Air Technical Intelligence Center for final evaluation. This cooperative program has re- sulted, since l January 1955, in reducing the insufficient information cases to 7% and the unknown cases to 3%, of the totals. The period 1 January 1955 to 5 May 1955 accounted for 131 unidentified aerial object reports received. Evaluation percentages of these are as follows: viii

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Balloons - 26% Aircraft - 21% Astronomical - 23% Other - 20% Insufficient Info - 7% Unknown - 3% All available data were included in this study which was prepared by a panel of scientists both in and out of the Air Force. On the basis of this study it is believed that all the unidentified aerial objects could have been explained if more complete observational data had been available. Insofar as the reported aerial objects which still remain unexplained are concerned, there exists little information other than the impressions and interpretations of their observers. As these impressions and interpretations have been replaced by the use of improved methods of investigation and reporting, and by scientific analysis, the number of unexplained cases has decreased rapidly towards the vanishing point. Therefore, on the basis of this evaluation of the information, it is considered to be highly improbable that reports of unidentified aerial objects examined in this study represent observations of technological developments outside of the range of present-day scientific knowledge. It is emphasized that there has been a complete lack of any valid evidence of physical matter in any case of a reported unidentified aerial object. ix

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INTRODUCTION In June, 1947, Kenneth Arnold, a Boise, Idaho, businessman and private pilot, publicly reported the now-famous sighting of a chainlike formation of disc-shaped objects near Mount Rainier, Washington. Result- ing newspaper publicity of this incident caught the public interest, and, shortly thereafter, a rash of reports of unidentified aerial objects spawned the term "flying saucers". During the years since 1947, many reports of unidentified aerial objects have been received by the Air Force from many and diverse sources. The unfortunate term "flying saucer", or "flying disc", because of its widespread and indiscriminate use, requires definition. Many defini- tions have been offered, one of the best being that originated by Dr. J. Allen Hynek, Director of the Emerson McMillin Observatory of The Ohio State University, who has taken a scientific interest in the problem of unidentified aerial objects since 1949. Dr. Hynek's definition of the term is "any aerial phenomenon or sighting that remains unexplained to the viewer at least long enough for him to write a report about it"(1). Dr. Hynek, elaborating on his definition, says, "Each flying saucer, so defined, has associated with it a probable lifetime. It wanders in the field of public in- to tini pear alect do its fiste of on a untie sauced a an explana- This definition would be applicable to any and all of the sightings which remained unidentified throughout this study. However, the term "flying saucers" shall be used hereafter in this report to mean a novel, airborne phenomenon, a manifestation that is not a part of or readily ex- plainable by the fund of scientific knowledge known to be possessed by the Free World. This would include such items as natural phenomena that are not yet completely understood, psychological phenomena, or intruder air- craft of a type that may be possessed by some source in large enough numbers so that more than one independent mission may have been flown and reported. Thus, these phenomena are of the type which should have been observed and reported more than once. Since 1947, public interest in the subject of unidentified aerial objects fluctuated more or less within reasonable limits until the summer of 1952, when the frequency of reports of sightings reached a peak, possibly stimu- lated by several articles on the subject in leading popular magazines. Early in 1952, the Air Force's cumulative study and analysis of reported sightings indicated that the majority of reports could be accounted for as misinterpretations of known objects (such as meteors, balloons, or aircraft), a few as the result of mild hysteria, and a very few as the result of unfamiliar meteorological phenomena and light aberrations. However, (1) Hynek, J. A., "Unusual Aerial Phenomena", Journal of the Optical Society of America, 43 (4), PP 311-314, April, 1953. 1

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a significant number of fairly complete reports by reliable observers re- mained unexplained. Although no evidence existed that unexplained reports of sightings constituted a physical threat to the security of the U.S., in March, 1952, the Air Force decided that all reports of unidentified aerial objects should be investigated and evaluated to determine if "flying saucers" represented technological developments not known to this country. Originally, the problem involved the preparation and analysis of about 1, 300 reports accumulated by the Air Force between 1947 and the end of March, 1952. During the course of the work, the number of reports sub- mitted for analysis and evaluation more than tripled, the result of the un- precedented increase in observations during 1952. Accordingly, this study is based on a number of reports considered to be large enough for a pre- liminary statistical analysis, approximately 4, 000 reports. This study was undertaken primarily to categorize the available reports of sightings and to determine the probability that any of the reports of unidentified aerial objects represented observations of "flying saucers". With full cognizance of the quality of the data available for study, yet with an awareness of the proportions this subject has assumed at times in the public mind, this work was undertaken with all the seriousness accorded to a straightforward scientific investigation. In order to establish the probability that any of the reports of unidentified aerial objects represented observations of "flying saucers", it was necessary to make an attempt to answer the question "What is a 'flying saucer'?". However, it must be emphasized that this was only incidental to the primary purpose of the study, the determination of the probability that any of the reports of un- identified aerial objects represented observations of "flying saucers", as defined on Page 1. The basic technique for this study consisted of reducing the available data to a form suitable for mechanical manipulation, a prerequisite for the application of preliminary statistical methods.. One of International Business Machine Corporation's systems was chosen as the best available mechanical equipment. The reduction of data contained in sighting reports into a form suit- able for transfer to IBM punched cards was extremely difficult and time consuming. For this study a panel of consultants was formed, consisting of both experts within and outside ATIC. During the course of the work, guidance and advice were received from the panel. The professional experience available from the panel covered major scientific fields and numerous specialized fields. All records and working papers of this study have been carefully preserved in an orderly fashion suitable for ready reference. These 2

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records include condensations of all individual sighting reports, and the IBM cards used in various phases of the study. ORIGIN AND NATURE OF DATA Reports of sightings were received by the U. S. Air Force from a. representative cross section of the population of the U. S., and varied widely in completeness and quality. Included were reports from reputable scientists, housewives, farmers, students, and technically trained mem- bers of the Armed Forces. Reports varied in length from a few sentences stating that a "flying saucer" had been sighted, to those containing thou- sands of words, including description, speculation, and advice on how to handle the "problem of the ' flying saucers'". Some reports were of high quality, conservative, and as complete as the observer could make them; a few originated from people confined to mental institutions. A critical examination of the reports revealed, however, that a high percentage of them was submitted by serious people, mystified by what they had seen and motivated by patriotic responsibility. Three principal sources of reports were noted in the preliminary review of the data. The bulk of the data arrived at ATIC through regular military channels, from June, 1947, until the middle of 1952. A second type of data consisted of letters reporting sightings sent by civilian observers directly to ATIC. Most of these direct communications were dated subsequent to April 30, 1952, and are believed to be the result of a suggestion by a popular magazine that future reports be directed to the Air Technical Intelligence Center. As could be expected, a large number A third type of data was that contained in questionnaire forms com- pleted by the observer himself. A questionnaire form, developed during the course of this study, was mailed by ATIC to a selected group of writers of direct letters with the request that the form be completed and returned. Approximately 1, 000 responses were received by ATIC. In general, the data were subjective, consisting of qualified estimates of physical characteristics rather than of precise measurements. Further- more, most of the reports were not reduced to written form immediately. The time between sighting and report varied from one day to several years. Both of these factors introduced an element of doubt concerning the validity of the original data, and increased its subjectivity. This was intensified by the recognized inability of the average individual to estimate speeds, dis- tances, and sizes of objects in the air with any degree of accuracy. In spite of these limitations, methods of statistical analysis of such reports in sufficiently large groups are valid. The danger lies in the possibility of 3

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forgetting the subjectivity of the data at the time that conclusions are drawn from the analysis. It must be emphasized, again and again, that any conclusions contained in this report are based NOT on facts, but on what many observers thought and estimated the true facts to be. Altogether, the data for this study consisted of approximately 4, 000 reports of sightings of unidentified aerial objects. The majority were re- ceived through military channels or in the form of observer-completed questionnaires; a few were accepted in the form of direct letters from un- questionably reliable sources. Sightings made between June, 1947, and December, 1952, were considered for this study. Sightings alleged to have occurred prior to 1947 were not considered, since they were not reported to official sources until after public interest in "flying saucers" had been stimulated by the popular press. REDUCTION OF DATA TO MECHANIZED COMPUTATION FORM As received by the Air Technical Intelligence Center, the sighting reports were not in a form suitable for even a quasi-scientific study. A preliminary review of the data indicated the need for standardized interro- gation procedures and supplemental forms for the reduction of currently held and subsequently acquired data to a form amenable to scientific appraisal. The plan for reduction of the data to usable form consisted of a pro- gram of development comprising four major steps: (1) a systematic listing of the factors necessary to evaluate the observer and his report, and to identify the unknown object observed; (2) a standard scheme for the trans- fer of data to a mechanized computation system; (3) an orderly means of relating the original data to all subsequent forms; and (4) a consistent pro- cedure for the identification of the phenomenon described by the original data. Questionnaire The first reports received by ATIC varied widely in completeness and quality. Air Force Letter 200-5(2) and Air Force Form 112(1) were attempts to fix responsibility for and improve the quality of the reports of sightings. To coordinate past efforts and to provide standardization for the (1) A modified Air Force Form 112 lists pertinent questions to be answered in regard to an unidentified-object sighting. (2) Air Force Letter 200-5 places responsibility with the Air Force for the investigation, reporting, and analysis of unidentified aerial objects. This letter is dated 29 April 1952. 4

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future, it was imperative to develop a questionnaire form listing the factors necessary for evaluation of the observer and his report, and identification of the unknown objects. In addition, it was decided that such a questionnaire should be designed to serve as an interrogator's guide, and as a form for the observer himself to complete when personal interrogation was not possi- ble or practicable. Ideally, a questionnaire for the purposes required should contain questions pertaining to all technical details considered to be essential for the statistical approach, and should serve to obtain a maximum of informa- tion from the average individual who had made a sighting in the past or would be likely to be reporting sightings in the future. Besides these dis- crete facts, an integrated written description of a sighting would be re- quired, thus enabling the reported facts of the sighting to be corroborated. Also, a narrative description might allow subtle questions to be answered concerning the observer's ability, such as indirect questions that would reveal his reasoning ability, suggestibility, and general mental attitude. As a whole, then, the information contained in a questionnaire should make possible the classification and evaluation of the sighting, the rating of the observer, the probability of accuracy of reported facts, and the identifica- tion of what was reported by the observer as unidentified. During the course of this project, three questionnaire forms were developed, each intended to be an improved revision of the one preceding. The improvements were suggested and confirmed by members of the panel of consultants connected with this project. The original form was evolved by the panel of consultants as their first work on this project. It was intended to allow the start of the reduc- tion of reports to discrete data, and was immediately subjected to exten- sive review and revision by the panel. The revised (second) form was subjected to a trial test before adoption. ATIC sent a copy to observers reporting sightings, with the request that the form be completed and re- turned. Of the first 300 questionnaires returned during July and August, 1952, 168 were analyzed by a consulting psychologist. On the basis of this analysis, plus the experience gained in working with past reports, the final form of the questionnaire - the U. S. Air Force Technical Information Sheet - was evolved. Copies of the three forms of the questionnaire, in the order of their development, are shown as Exhibits B1, B2, and B3 in Appendix B. In order to implement the transcription of data from past sighting reports, each succeeding form was put to use as soon as it was developed and approved. Accordingly, experience was obtained with each form in relation to past data, an important factor in the improvement of the quality and completeness of the later reports included in this study. 5

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Coding System and Work Sheet The reduction of non-numerical data to numerical form is mandatory in the machine handling of data. Thus, the selection of the IBM punched- card system for analysis of data forced the adoption of a master coding plan. Since it was impracticable to transfer detailed data of an exact nature from the questionnaire to the IBM card, an intermediate transfer form, coordinated with the master code, was necessary. The master coding plan was evolved during the early stages of the preliminary analysis of data, and was reviewed by the panel of consultants before use. It was recognized that this system of coding would be the heart of the analysis, that is, the completeness of the facility for trans- lation of data could make or break the study. Accordingly, every conceiv- able factor that might influence the identification of unidentified aerial objects was included, together with a wide range of variations within each factor. The original coding system (with minor corrections) was used throughout the translation of the original data with marked success. A copy of this system, called CODES, is enclosed as Exhibit B4, Appendix B. To facilitate the preparation of the punched-card abstract, an inter- mediate form called the WORK SHEET (later, the CARD BIBLE) was developed. Referenced to both the data from the questionnaire and the sys- tem of report identification, the WORK SHEET permitted an orderly transcription of data simultaneously by several people. In conjunction with the CODES, the WORK SHEET was used during the reduction of the original data to code form necessary for transfer to punched cards. A sample is included as Exhibit B5, Appendix B. After the analysis was under way, it became apparent that the me- chanics of machine processing could be improved by incorporating in the IBM card system group classifications of certain factors requiring more than one column for discrete expression. In addition, the inclusion of certain data relating to the evaluation and bearing of the sun with respect to the observer was considered necessary. Finally, a critical examination of certain segments of the data indicated the need for the definition of a new factor relating to the maneuvers of the object or objects sighted. Prior to the start of the analytical study, it had been assumed that a com- bination of stated factors would, by inference, define the maneuver pattern. All these additions have been incorporated in a revised set of CODES and CARD BIBLE that are illustrated as Exhibits B6 and B7, Appendix B. However, at the time that the maneuver factor was determined to be criti- cal, it was physically impracticable to make the required definitions and re-evaluate the original data. Therefore, no code for maneuve rability has been included in the CODES, CARD BIBLE, or IBM cards.

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Identification of Working Papers The actual reduction of data to IBM punched-card form presented a problem of mass transfer of figures by several workers. Recognizing that an orderly system of relating the original data to the questionnaire, the WORK SHEET, and the IBM card was imperative, a scheme of SERIAL NUMBERS was developed to answer this need. The first data consisted of a series of letter-file folders identified by the year and location of the sighting or sightings they contained. The num- ber of reports of sightings in a single folder varied from l to over 20. Under these conditions, there was a great possibility for incorrect tran- scription of data, duplication of transcription, or misplacement of inter- mediate forms. Further, it was considered desirable to relate all sightings of the same object or objects to one another. The concept of a four-digit serial number (major), followed by a two-digit subserial number (minor), was adequate to fulfill these requirements. To expedite handling of the data, temporary serial numbers were assigned until each report had been evaluated and the phenomenon had been placed in a category of identification. The use of temporary serial num- bers permitted the consolidation of duplicate reports from apparently diverse sources, such as a teletype message and an Air Force Form 112. However, this consolidation was made ONLY when it could be proved con- clusively that the sources of the two documents were one and the same. Factors of the observer's location, date and time of observation, descrip- tion of the phenomenon, and finally, the name of the observer were con- sidered. In this manner, the assignment of major serial and minor sub- serial numbers in continuous series was made only to the reports accepted for the statistical study. It is believed that the reports accepted represent unique and unduplicated instances of sightings. In the establishment of the serial-number system, it was necessary to define certain terms, so that a standard interpretation could be achieved. The terms and corresponding definitions were: OBSERVER - Any witness reporting to a proper authority that he had seen unidentified aerial objects. SIGHTING - The report or group of reports of the same observed phenomenon that remained unidenti- fied to the observer or observers, at least until reported. 7

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SINGLE OBSERVATION - A SIGHTING consisting of a single report from (1) one OBSERVER with no knowledge of additional OBSERVERS of the same phenom- enon, or (2) a group of witnesses of the same phenomenon, each cognizant of the others. The witness who made the report is called a SINGLE OBSERVER. MULTIPLE OBSERVATION - A SIGHTING consisting of several reports from OBSERVERS of the same phenomenon who were cognizant of each other The witnesses who made reports are callec MULTIPLE OBSERVERS. ALL SIGHTINGS - (1) The group of reports consisting of one report for each OBSERVER, including both SINGLE and MULTIPLE OBSERVERS. (2) The questionnaire, work sheet, and IBM card representing the report from each OBSERVER - in other words, the representation of each report accepted for the statistical study. UNIT SIGHTINGS - (1) The group of reports consisting of one report for each SIGHTING, including all the reports of SINGLE OBSERVATIONS and the one most representative report from each MULTIPLE OBSERVATION. (2) The questionnaire, work sheet, and IBM card representing the report for each SIGHTING accepted for the statistical study. A major serial number (four digits) was assigned to each sighting, segregating the year of occurrence by selection of limits for each year, as follows: 0001 to 0500 reserved for 1947 0501 to 1000 reserved for 1948 1001 to 1500 reserved for 1949 1501 to 2000 reserved for 1950 2001 to 2500 reserved for 1951 2501 to 4900 reserved for 1952 While this scheme would serve to identify any individual sighting, identifi- cation of each report and its subsequent forms was necessary. The minor subserial numbers (two digits) fulfilled this requirement. OBSERVATIONS, a major serial number followed by two (2) zeros, for followed by two or athsinger example, 2759.00, was sufficient identification. For MULTIPLE OBSER- VATIONS, the major serial number followed by a series of two-digit num- bers ranging from 00 to 99 was used to identify the individual reports. In general, the most complete report from the most reliable observer of that 8

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MULTIPLE OBSERVATION was identified with the . 00 subserial number. As an example, a MULTIPLE OBSERVATION consisting of six sighting reports would have the following serial numbers: 1132. 00 representing the best report and observer 1132.01 representing an additional observer 1132. 02 representing an additional observer 1132.03 representing an additional observer 1132. 04 representing an additional observer 1132. 05 representing an additional observer During the course of the transcription of the data to machine card form, it became obvious that certain reports could have been independent observations of the same phenomenon. So, if the presentation of an analysis based on one report for each sighting was valid (the concept of UNIT SIGHTINGS), a presentation of an analysis based on one report for each phenomenon should be valid also. Further, the examination of data relating to the actual number of phenomena was considered to be the proper basis for assessing the probability of technological developments outside the range of present-day scientific knowledge. Therefore, a designation of OBJECT SIGHTINGS was established, with the following definition: OBJECT SIGHTING - (1) The group of reports consisting of one report for each phenomenon. (2) The questionnaire, work sheet, and IBM card representing a report for each phenomenon accepted for the statistical study. In brief review, ALL SIGHTINGS refer to all reports, UNIT SIGHTINGS refer to actual sightings, and OBJECT SIGHTINGS refer to the assumed number of phenomena. It must be recognized that the process of identifying OBJECT SIGHTINGS was deductive, while that for UNIT SIGHTINGS was definitive. A conservative approach was adopted in the determination of OBJECT SIGHTINGS, using the factors of date and time of observations, location of observers, duration of observations, and range, bearing, track direc- tion, and identification of the phenomena. Any error of selection of OBJECT SIGHTINGS will tend to be in the direction of reducing the actual number of phenomena observed (several instances of UNIT SIGHTINGS that might be one OBJECT SIGHTING were noted, but the evidence was not conclusive enough to justify consolidation of the reports). Following the determination of OBJECT SIGHTINGS, a series of serial numbers, called the INCIDENT SERIAL NUMBERS, was established to facilitate any future study of a specific object sighting. Each reported sighting that relates to an OBJECT SIGHTING received the same incident serial number, a four-digit code paralleling the major serial number series. 9

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For machine manipulation, it was desirable to be able to select the sample of cards (all reports, all sightings, or all phenomena) to be in- cluded in a particular study. The concept of a SIGHTING IDENTIFICATION NUMBER was evolved to fill this desire. Using one column of the IBM card, and the correlated working papers, the code for this function was developed. Multiple punching eliminated the need to use several columns for discrete expression of the variations. Selection of the proper number in this column thus permitted selection of the desired sample of cards. Evaluation of Individual Reports Evaluation of sighting reports was recognized as a crucial step in the preparation of data for statistical treatment; inconsistent evaluations would have invalidated any conclusions to be derived from this study. A method of evaluation was, therefore, determined simultaneously with the develop- ment of the questionnaire, the coding system, and the work sheet. It is emphasized that all phases of evaluation, even including the tedious prep- aration of the original data for statistical treatment, were entrusted only to selected, specially qualified scientists and engineers. Evaluation consisted of a standardized procedure to be followed for: (1) the deduction of discrete facts from data which depended on human im- pressions rather than scientific measurements, (2) the rating of the ob- server and his report as determined from available information, and (3) the determination of the probable identification of the phenomenon observed. Categories of identification, established upon the basis of previous experi-. ence, were as follows: Balloon Astronomical Aircraft Light phenomenon Birds Clouds, dust, etc. Insufficient information Psychological manifestations Unknown Other The first step in evaluation, the deduction of discrete facts from subjective data, required certain calculations based on the information available in the sighting report. An example was the finding of the approxi- mate angular velocity and acceleration of the object or objects sighted. Care was taken during this phase of the work to insure against the deduc- tion of discrete facts not warranted by the original data. Thus, even though there was a complete lack of any valid evidence consisting of 10

━ PAGE 21 ━

physical matter in any case of a reported unidentified aerial object, this was not assumed to be prima facie evidence that "flying saucers" did not exist. In those cases in which an attempt to reduce the information to a factual level failed completely, the report was eliminated from further con- sideration, and thus not included in the statistical analysis. About 800 reports of sightings were eliminated or rejected in this manner. Most of these reports were rejected because they were extremely nebulous; the rest were rejected because they contained highly conflicting statements. The second step in evaluation, the rating of the observer and his report, logically followed the first step, the reduction of the data to usable form. Ratings were assigned on the basis of the following factors of in- formation, considered in relation to one another: (1) The experience of the observer, deduced from his occupation, age, and training; (2) The consistency among the separate portions of the description of the sighting; (3) The general quality and completeness of the report; (4) Consideration of the observer's fact-reporting ability and attitude, as disclosed by his manner of describing the sighting. In cases in which insufficient information was available to make a judgment of the observer or report, none was made, but the report was accepted for the statistical study. The third step in the process of evaluation, the attempted identifica- tion of the object or objects sighted, was done twice, first by the individual who made the transcription of the data (the preliminary identification), and later (the final identification) by a conference of four persons, two repre- sentatives from ATIC and two from the panel of consultants. Although representatives of ATIC participated in making the final identifications, it must be emphasized that any previous identification of a sighting made by . ATIC was not introduced or referred to in any way. In the coding system, the choices provided for final identifications were based on ATIC's previous experience in analysis of the data. They had found that the majority of sightings could be classified as misinterpre- tations of common objects or natural phenomena. Accordingly, categories for objects most frequently present in the air were provided. Balloons, aircraft, astronomical bodies (such as meteors), birds, and clouds or dust were recognized as major categories. The less frequent, but common objects, such as kites, fireworks, flares, rockets, contrails, and 11

━ PAGE 22 ━

meteorological phenomena like small tornadoes, were collected into a category called OTHER. A separate category for the uncommon natural phenomena associated with light reflections or refractions, such as mirages, sun dogs, inversion-layer images, and distortions caused by airborne ice, was established with the title of LIGHT PHENOMENON. Categories for INSUFFICIENT INFORMATION, PSYCHOLOGICAL MANIFESTATIONS, and UNKNOWN were provided for the sightings that could not be fitted into the preceding identifications. An explanation of their use follows: INSUFFICIENT INFORMATION - This identification category was assigned to a report when, upon final con- sideration, there was some essential item of information missing, or there was enough doubt about what data were available to disallow identification as a common object or some natural phenomenon. It is emphasized that this category of identification was not used as a convenient way to dispose of what might be called "poor unknowns", but as a category for reports that, perhaps, could have been one of several known objects or natural phenomena. No reports identified as INSUFFICIENT INFORMA- • TION contain authenticated facts or impressions concerning the sighting that would prevent its being identified as a known object or phenomenon; PSYCHOLOGICAL MANIFESTATIONS - This identification category was assigned to a report when, although it was well established that the ob- erver had seen something, it was als bvious that the description of the sightin had been overdrawn. Religious fanaticism, a desire for publicity, or an over-active imagi- nation were the most common mental aber- rations causing this type of report; UNKNOWN - This designation in the identification code was assigned to those reports of sightings wherein the description of the object and its maneuvers could not be fitted to the pattern of any known object or phenomenon. For the purposes of this study, two groups of identifications were recognized, the KNOWNS (including all identification categories except the UNKNOWNS) and the UNKNOWNS. All possible identifications provided in the code system, except INSUFFICIENT INFORMATION and UNKNOWN, could be assigned accord- ing to two degrees of certainty, designated "Certain" and "Doubtful". 12

━ PAGE 23 ━

A "Certain" identification indicated a minimum amount of doubt regarding the validity of the evaluation. By "rule-of-thumb" reasoning, the proba- bility of the identification being correct was better than 95 per cent. A "Doubtful" identification indicated that the choice was less positive, but that there was a better than even chance of being correct. It is emphasized again that, as was true for other phases of evalua- tion, preliminary and final identification was entrusted only to scientists engineers who, in addition to their broad scientific background, had received instruction, where necessary, in specialized subjects. The panel of consultants provided background information for this instruction. Many of the cases representing unusual features or maneuvers were submitted to and discussed with various members of the panel of consultants prior to the final identification. Consistency in the application of the knowledge necessary for making identifications was maintained by frequent collaboration among the person- nel involved, and systematic spot checks of the work. In addition to the general fund of knowledge required to identify satisfactorily a reported unidentified aerial object, an attempt was made to correlate specific data such as flight plans of aircraft, records of balloon releases, weather con- ditions, and an astronomical almanac with the reported sighting. The procedure followed in making final identifications deserves ex- planation because of the importance assumed by the identification as a basis for statistical treatment. As was mentioned, a conference of four qualified persons, two from ATIC and two from the panel of consultants, decided upon the final identification for each sighting report. This work was done at ATIC, periodically, as reports became ready. During an identification conference, each sighting report was first studied, from the original data, by one person. If that person arrived at a decision, it was checked against the preliminary identification; if the two identifications were the same, the report was appropriately marked and considered finished. If the two identifications did not agree, the report was considered later by everyone participating in the conference until a group decision could be made. If an evaluator was unable to categorize the report as one of the common objects or as a natural phenomenon, and his opinion was that the sighting should be recorded as UNKNOWN, a group decision was also re- quired on that report before it was considered finished. A group decision was necessary on all reports finally recorded as UNKNOWN, regardless of what the preliminary identification had been. In cases where a group decision was not made within a reasonable time, the report was put aside and later submitted to certain members of the panel of consultants for their opinions. If, after this, disagreement continued to exist, the report of the sighting was identified as UNKNOWN. 13

━ PAGE 24 ━

Upon completion of final identifications, all data were transferred to IBM cards, preparatory to analysis. ANALYSIS OF THE DATA Broadly stated, the problem at this point consisted of the judicious application of scientific methods of categorizing and analyzing the sub- jective data in reports of sightings of unidentified aerial objects. It was recognized that an approach to this problem could best be made by a sys- tematic sorting and tabulation program to give frequency and percentage listributions of the important characteristics of sightings. A suggestio hat an attempt be made to anticipate all questions that might be asked i the future about a sighting or a group of sightings, and to provide answers, was rejected. The systematic approach also made it possible to develop a detailed reference manual of the attributes of the sightings included in this study. Thus, at the beginning of the analysis, a detailed plan was developed for sorting, counting, and tabulating the information from the punched-card abstracts of reports of sightings. It was believed at the time, and later substantiated, that the results of the program for sorting and tabulating would serve as a guide for the more sophisticated treatment involving statistical methods. Also, it was anticipated that any patterns or trends that might be found could be subjected to concentrated study in the hope of discovering significant information relating to the characteristics of "flying saucers". Further, it was believed that these trends could serve as certain of the criteria of validity for any concepts (models) developed in the attempt to discover a class of "flying saucers". The three parts of this study (1) the sorting and tabulation program, (2) the advanced study of the results of that program, and (3) the investiga- tion of the possibility of conceiving a model of a "flying saucer" from descriptions reported, are discussed in sections entitled "Frequency and Percentage Distributions by Characteristics", "Advanced Study of the Data", and "The 'Flying Saucer' Model". Frequency and Percentage Distributions by Characteristics The original conception of this study assumed the availability of sufficient data to describe adequately the physical appearance, maneuver characteristics, range, direction, and probable path of the object or objects observed. However, familiarity with the data, acquired during the 14

━ PAGE 25 ━

translation and transcription from reports to punched cards, indicated that there would be relatively few specific variables or factors that would yield meaningful correlation studies. Either the original data were too subjec- tive, or the incompleteness of the original reports would seriously reduce the sample of a specific variable. Preliminary tabulations of various sortings substantiated the im- possibility of deriving statistical results from certain variables, such as movement of the observer during the sighting, sound, shape parameter, size, angular velocity and acceleration, appearance and disappearance bearing, initial and final elevation, altitude, and orientation of the object. The statistically usable variables presented in this study include the date, time, location, duration, reliability, and method of observation of the sighting, and the physical attributes of number, color, speed, shape, light brightness, and identification of the objects sighted. The presentation of frequency and percentage distributions of any of the variables must be interpreted in the light of the sample of incidents represented. For example, the analysis of the reported colors of the objects sighted, based on ALL SIGHTINGS, could lead to misrepresenta- tion of the distribution of the reported color of the objects, because of the multiplicity of reports on some of the phenomena. On the other hand, the percentage distribution of the light brightness reported by each observer is more likely to be correct than a distribution based on one report for each phenomenon. To assure that the most nearly correct presentation was made, and to avoid the possibility of failure to uncover any pattern or trend inherent in the data, the variables were studied on five different bases or samples. These samples, and their numerical relation to each other, were as follows: ALL SIGHTINGS (all reports) - 3, 201 cards UNIT SIGHTINGS, all observers - 2, 554 cards UNIT SIGHTINGS, single observer - 2, 232 cards UNIT SIGHTINGS, multiple observers - 322 cards OBJECT SIGHTINGS - 2, 199 cards The preliminary tabulations indicated that the samples based on UNIT SIGHTINGS, single observer, and UNIT SIGHTINGS, multiple observers, would not add materially to this study. Accordingly, although the fre- quency distributions were recorded and are available for study, they are not presented in this report. The bases of ALL SIGHTINGS, UNIT SIGHTINGS (referring to all observers), and OBJECT SIGHTINGS are presented in Appendix A as Tables Al through A240. A critical study of these tabulations reveals that there is no apparent change in the distribution of any variable from one basis to another, and that no marked patterns or trends exist in any sample. 15

━ PAGE 26 ━

Graphical Presentation Graphical representation of the important information contained in the tables is presented in Figures 1 through 38. These figures present the distributions of the important variables only by the total number of cases in each identification category, since no significant differences were found between the distributions of "Certain" and "Doubtful" identifications of objects with respect to the variables. A chronological study of these figures will afford a broad picture of the tabulated information, without the necessity of a detailed study of the tables. A critical examination of the figures will show that no trends, patterns, or correlations are to be found, with the exception of Figures 18 through 30. The apparent similarity of the distributions shown by these mirror graphs, Figures 18 through 23, was tested by statistical methods which showed that there was a low probability that the distributions of the KNOWNS. and UNKNOWNS by these characteristics were the same. These tests and their interpretation are discussed in the following section. For purposes of this study, the strategic areas, shown in Figures 32 through 38, and Tables A223 through A240, Appendix A, were designated on the basis of concen- tration of reports of OBJECT SIGHTINGS in an area. No other interpre- tation of the tables or remaining charts was deemed necessary. Advanced Study of the Data It was recognized that the lack of any patterns or trends, as shown by the tabulations and graphs, provided an insecure basis for drawing definite conclusions. Accordingly, shortly before the sorting and tabulation pro- gram was concluded, a program of study of the data was developed to utilize statistical and other mathematical methods, which could lead to a more concrete interpretation of the problem. Position of the Sun Relative to the Observer The first thing that was done was to calculate the angle of elevation of the sun above the horizon and its bearing from true north as seen by the observer at the time of each sighting. With this information, it could then be determined whether there was a possibility that the reported object could have been illuminated by light from the sun. In addition, it could be determined whether an object could be a mock sun (sun dog) or whether there was a possibility of specular reflection from an aircraft at the posi- tion of the object, which would give the appearance of a "flying disc". A program of computation was set up and carried out to obtain the angle of elevation and the bearing of the sun for each sighting. All informa- tion needed for this calculation was available on the deck of IBM cards. 16

━ PAGE 27 ━

1952, 1501= 68.3% 1952 1722= 67.4% 1952, 2018= 63.0% 1947 117: 1948, 3.7% 205 = 1947 6.4% 97= 389/1948, 153 ÷ 1947 79= 6.0% 3.6 1948 % 143= 6.5% 1949, 1949 395 ÷ 236= 12.3% 9.2 % 1949, 186= 8.5 % 1950, 169 = 11950, 209=| 8.2% 7.7% 1951 121= 5.5%/1951, 137= 5.4% 11951 160= 5.0% 1950, 306= 9.6% Object sightings 2199 = 100% All sightings 3201 = 100% Unit sightings 2554 = 100% FIGURE I FREQUENCY OF SIGHTINGS BY YEAR FOR OBJECT, UNIT, AND ALL SIGHTINGS A - 7478

━ PAGE 28 ━

689= 21.5% 497= 19.5% 639 ₽ Unknown 434=19.7% 25.0% 817= \25.5% Astronomical 479 = 21.8 % 125 305: 9,9% 96% Other 233=10.3% Aircraft 474=215% Insuf. info. 240=10.9% 298= 9.3% 261= 10.2 % Balloon 339=15.4% 527= 20.6% 642= 20.1% 379=14.8% 450=14.0% Object sightings 2199=100% All sightings 3201=100% Unit sightings 2554 = 100% FIGURE 2 DISTRIBUTION OF EVALUATIONS OF OBJECT, UNIT, AND ALL SIGHTINGS FOR ALL YEARS A-7480

━ PAGE 29 ━

1947 1948 1949 1950 1951 'es, 19S0 1947 1080 Unknown 434=19.7% 1952 Astronomical 479 = 21.8% 1952 Other 233=10.3% 1947-51 1949-51 1948 1947 Aircraft 474=21.5% Insuf. info. 240=10.9% Balloon 339$15.4% 1952 1947 1951 FIGURE 3 DISTRIBUTION OF OBJECT SIGHTINGS BY EVALU- ATION FOR ALL YEARS WITH COMPARISONS OF EACH YEAR FOR EACH EVALUATION GROUP A-7481

━ PAGE 30 ━

No. of object sightings 2199 79 143 186 169 121 1501 100 90 80 70 60 50 40 30 20 - 10- Unknown > Other XXXXX LInsuf. = - info. Balloon Aircraft 100 190 80 70 60 - 50 40 30 20 10 Astronom lical! All years 1947 1948 1949 1950 1951 1952 FIGURE 4 DISTRIBUTION OF ÖBJECT SIGHTINGS BY EVALUATION FOR ALL YEARS AND EACH YEAR A-7482

━ PAGE 31 ━

100 90 80 70- 601 No. of object sightings 70 55 83 known her Ot 127 129 183 638 407 166 125 106 105 Months 50- 40 30 20 10 Aircraft 100 - 90 80 - 70 60 - 50 40 30 Astronomical Jan - 20 - 10 Feb Mar Apr May June July Aug Sept Oct Nov Dec - FIGURE 5 DISTRIBUTION OF OBJECT SIGHTINGS BY EVALUATION WITHIN MONTHS FOR ALL YEARS A - 7483

━ PAGE 32 ━

Astronomical All years 1947 Aircraft All years 1947 1948 949 950 195 - Al years Balloons Insuf. info. Unknown All years 1813 - 1951 1952 All years Other All years 30 2ò 30 Certain Per Cent Doubtful FIGURE 6 DISTRIBUTION OF OBJECT SIGHTINGS BY CERTAIN AND DOUBTFUL EVALUATIONS FOR ALL YEARS AND EACH YEAR A-7484 22

━ PAGE 33 ━

500- 400 300- 200- "got 60 160 Number Object Sightings 50 40- -40 30 -20 10- 10 All object < sightings Unknown - object sightings Thusiasorb 1947 194A 194.9 1950 A SONDUFMAN 1951 1952 FIGURE 7 FREQUENCY OF OBJECT SIGHTINGS AND UNKNOWN OBJECT EVALUATIONS BY MONTHS, 1947-1952 C-7485

━ PAGE 34 ━

Unknown Astro- 72÷16.6% nomical Other 99=22.8% 46÷10.6% 435= 100% Insuf. Aircraft 69=15.9% info. 93=21.4% Balloon 56=12.9% Poor 435 = 19.8% Unknown 71=33.3% Astro- nomical 52=24.4% 213= 100% Aircraft 41=19.2% One sio Balloon 25 = 11.8 % /Excellent Insuf. info. 9=4.2% 213= 9.7 % 2199= 100% 757= 34.5% 794= 36.0% Doubtful Unknown Astro- 103= Other 13.0% nomical 154=19.4% 97=12.2% 794= 100% Insuf. info. 111 = V40% Balloon 131=16.5% Aircraft 198=24.9% Good Unknown 188 = 24.8% Astro- nomical 174=23.0% 757= Other 100% Aircraft 75=9.9% 166 = 22.0% Balloon 127=16.8% Insuf. info. 27=3.6% FIGURE 8 DISTRIBUTION OF OBJECT SIGHTINGS BY SIGHTING RELIABILITY GROUPS WITH EVALUATION DISTRIBUTIONS FOR EACH GROUP A-7488 24

━ PAGE 35 ━

No. of object sightings 2199 79 Excellent 143 186 100 90- 80- 70- 169 121 1501 Good 40- 30- 20- 10- Doubtful 100 -90 - 80 -70 -60 -50 -40 - 30 -20 - 10 Poor All years 1947 1948 1949 1950 1951 1952 FIGURE 9 DISTRIBUTION OF OBJECT SIGHTINGS AMONG THE FOUR SIGHTING RELIABILITY GROUPS FOR ALL YEARS AND EACH YEAR A- 7 4 87

━ PAGE 36 ━

Astronomical Aircraft Balloon info. Unknown 25 50 _Per Cent. 75 100 ° 25 50 75 100 25 50 75 1000 25 50 75 100 45 40 35 O 30. Civilian Civilion à 20- 15 10 5 Civilian Civilian Military Military Military Military Excellent Good Doubtful Poor FIGURE 10 DISTRIBUTION OF ALL SIGHTINGS BY SIGHTING RELIABILITY GROUPS. SEGREGATED BY MILITARY AND CIVILIAN OBSERVERS WITH EVALUATION DISTRIBUTION FOR EACH SEGREGATION A -7488

━ PAGE 37 ━

100 100 90 90 Unknown 80- 80 70 Other DOXX [Insuf. _info. 70 60 60 50 Balloon 50 40- 40 Aircraft 30 30 20 20 Astro- nomical 10 10 White 23.5 % Not Metallic stated Orange Red 17.7 % 12.3% 10.0% 8.1% Other 28.4 % FIGURE I1 DISTRIBUTION OF OBJECT SIGHTINGS BY REPORTED COLORS OF OBJECTS) WITH EVALUATION DISTRIBUTION FOR EACH COLOR GROUP A-7489 27

━ PAGE 38 ━

100- 80- 60- Per Cent Within Group 40- 20- 3-10 objects 255=11.6 % -100 -80 -60 - 40 - 20 2 objects - 80- 60- 40- 20- 196 = 8.9 % 2199= 100 % l object 1636=74.4% Il or more objects 66=3.0% Number of objects not stated 46=2.1% - 100 -80 60 - 40 - 20 8 6 Unknown Others Insuf. info. Balloon Aircraft ≥ 20-1 Astronomical FIGURE 12 DISTRIBUTION OF OBJECT SIGHTINGS BY NUMBER OF OBJECTS SEEN PER SIGHTING WITH EVALUATION DISTRI- BUTION FOR EACH GROUP A - 7490 28

━ PAGE 39 ━

100 90- 80- Not stated 24.9% 70 Over 30 mir 7.8% 60 6-30 min 17.1% 50 61 sec - 40- 5 min 16.7% 30- 31-60 sec 6,8% 11-30 sec 20- 8.5 % 10- 5 sec or less 13.0% Duration Astronomical Aircraft Balloon Insuf. info. Other - Unknown 10 20 30 40 50 60 Evaluations in Per Cent 70 80 90 100 FIGURE 13 DISTRIBUTION OF OBJECT SIGHTINGS BY DURATION OF SIGHTING WITH EVALUATION DISTRIBUTION FOR EACH DURATION GROUP A- 7491

━ PAGE 40 ━

No. of object sightings 70 55 83 100 90- 80- 70- 127 129 183 638 407 166 125 106 105 Not stated Over 30min 6-30 min 100 -90 -80 -70 - 60 --- 50 g 061 sec 40-0 -I to m 5 min "o 30- 1501 16-18 sec ~ 20- 10- 5 sec and less Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec FIGURE 14 DISTRIBUTION OF OBJECT SIGHTINGS BY MONTHS AMONG THE EIGHT DURATION GROUPS FOR ALL YEARS A - 7492 -40 -30 -20 10

━ PAGE 41 ━

100- 90- 23.5% Astronomical Aircraft ‹Balloon - Insuf. info.- Other Unknown Not stated 80- 1 11.2 % 70- Other Flame 60- Lenticular conica teardrop RocKer anc air craft 4.8% 5.7% 50- 40- 30- Elliptical 20- 10- 0- W 47.0% Shape 20 30 40 50 60 Evaluation in Per Cent 70 80 90 FIGURE 15 DISTRIBUTION OF OBJECT SIGHTINGS BY SHAPE OF OBJECTS) REPORTED WITH EVALUATION DISTRIBUTION FOR EACH SHAPE GROUP A - 7493 100

━ PAGE 42 ━

100- Astronomical Aircraft , Balloon Insuf. info. Other > Unknown 90 - 80- 70- 60 - Speed not-stated 37.8% Per 50- 40 - Over 400 mph 24.9% 30 - 100-400 mph 10.9% 20 - 183 0. 10- Stationary 13.7 % 0- Speed 10 20 30 40 50 60 70 80 90 Evaluation in Per Cent FIGURE 16 DISTRIBUTION OF OBJECT SIGHTINGS BY REPORTED SPEED OF OBJECTS) WITH EVALUATION DISTRIBUTION FOR EACH SPEED GROUP A - 7484 100

━ PAGE 43 ━

100- No. of all sighting 3201 Location not stated 117 205 164 306 160 2018 і • 80- • 70- 60- 50- Outdoors з 30- -го- 10- 0- In bidg. In plane In car All years 1947 1948 1949 1950 1951 1952 FIGURE 17 DISTRIBUTION OF ALL SIGHTINGS BY OBSERVER LOCATION FOR ALL YEARS AND EACH YEAR A- 74 95 -100 - 90 - 80 - 70 -60 -50 - 40 -30 -20 - 10 -0

━ PAGE 44 ━

30 25 Total Less Unknown Per Cent 20 15 1° Unknown Per Cent 10 15 20 25 30 White Metallic Not stated Orange Red Other FIGURE 18 COMPARISON OF KNOWN AND UNKNOWN OBJECT SIGHTINGS BY COLOR, 1947-1952 A-7496

━ PAGE 45 ━

Total Less Unknown Per Cent 80 TO 60 50 40 30 20 10 10 20 30 Unknown Per Cent 40 50 60 70 80 One Two Three to ten Eigen Not stated FIGURE 19 COMPARISON OF KNOWN AND UNKNOWN OBJECT SIGHTINGS BY NUMBER OF OBJECTS PER SIGHTING, 1947-1952 A - 7497

━ PAGE 46 ━

Total Less Unknown Per Cent 40 35 30 25 20 15 10 Unknown Per Cent 15 20 25 30 35 40 Stationary Less than 100 mph 100 to 400 mph More than 400 mph Meteor-like Not stated FIGURE 20 COMPARISON OF KNOWN AND UNKNOWN OBJECT SIGHTINGS BY SPEED, 1947-1952 A-7498

━ PAGE 47 ━

Total Less Unknown Per Cent 30 Unknown Per Cent 15 20 30 5 seconds or less 6-10 seconds 11-30 seconds 31-60 seconds 61 seconds- 5 minutes 6-30 minutes More than 30 minutes Not stated FIGURE 2I COMPARISON OF KNOWN AND UNKNOWN OBJECT SIGHTINGS BY DURATION, 1947-1952 A- 7499

━ PAGE 48 ━

Total Less Unknown Per Cent 50 45 40 35 30 25 20 15 10 5 0 1O Unknown Per Cent 15 20 25 30 35 40 45 50 Elliptical Rocket and aircraft Meteor or comet enticular conical or tear drop Flame Other shapes Not stated FIGURE 22 COMPARISON OF KNOWN AND UNKNOWN OBJECT SIGHTINGS BY SHAPE, 1947-1952 A- 7500

━ PAGE 49 ━

60 Total Less Unknown Per Cent 50 40 30 20 2° Unknown Per Cent 30 -40 50 60 - Sunlight on mirror or aluminum Sunlight on plaster, stone or soilL Brighter than moon Like moon Duller than moon Not stated FIGURE 23 COMPARISON OF KNOWN AND UNKNOWN OBJECT SIGHTINGS BY LIGHT BRIGHTNESS, 1947-1952 A-7501

━ PAGE 50 ━

40 Total Less Astronomical Per Cent 20 Astronomical Per Cent • January February March April May June July August September October November December FIGURE 24 COMPARISON OF MONTHLY DISTRIBUTION OF OBJECT SIGHTINGS EVALUATED AS ASTRONOMICAL VERSUS TOTAL OBJECT SIGHTINGS LESS ASTRONOMICAL A - 7502

━ PAGE 51 ━

40 Total Less Aircraft Per Cent 30 20 Aircraft Per Cent 20 January February March April May June July August September October November December FIGURE 25 COMPARISON OF MONTHLY DISTRIBUTION OF OBJECT SIGHTINGS EVALUATED AS AIRCRAFT VERSUS TOTAL OBJECT SIGHTINGS LESS AIRCRAFT A- 7503

━ PAGE 52 ━

Total Less Balloon Per Cent 40 10 Balloon Per Cent 20 30 January February March April May June July August September October November December FIGURE 26 COMPARISON OF MONTHLY DISTRIBUTION OF OBJECT SIGHTINGS EVALUATED AS BALLOON VERSUS TOTAL OBJECT SIGHTINGS LESS BALLOON A- 7504

━ PAGE 53 ━

Total Less Insufficient Information Per Cent 20 Insufficient Information Per Cent 20 30 January February March April May June July August September _ October November December FIGURE 27 COMPARISON OF MONTHLY DISTRIBUTION OF OBJECT SIGHTINGS EVALUATED AS INSUFFICIENT INFORMATION VERSUS TOTAL OBJECT SIGHTINGS LESS INSUFFI- CIENT INFORMATION A - 7505

━ PAGE 54 ━

Total Less Other Per Cent 30 20 Other Per Cent 20 40 100 January February March April May June July August September October November December FIGURE 28 COMPARISON OF MONTHLY DISTRIBUTION OF OBJECT SIGHTINGS EVALUATED AS OTHER VERSUS TOTAL OBJECT SIGHTINGS LESS OTHER A- 7508 -

━ PAGE 55 ━

40 Total Less Unknown Per Cent 10 30 Unknown Per Cent 20 ПопІ January February March August September October November December FIGURE 29 COMPARISON OF MONTHLY DISTRIBUTION OF OBJECT SIGHTINGS EVALUATED AS UNKNOWN VERSUS TOTAL OBJECT SIGHTINGS LESS UNKNOWN A-7507

━ PAGE 56 ━

Total Per Cent Unknown Knowns Per Cent Unknown Astro Per Cent Unknown Aircroft Per Cent Unknown Balloon Per Cent Unknown nt Unknown KINGS stated stoted Meteor Number of objects Color Speed Shape Duration FIGURE 30 CHARACTERISTICS PROFILES OF OBJECT SIGHTINGS BY TOTAL SAMPLE, KNOWN EVALUATIONS, AND INDIVIDUAL KNOWN EVALUATIONS, WITH UNKNOWN EVALUATIONS SUPERIMPOSED B- 7508 46

━ PAGE 57 ━

•CANADA * N. 120o 24v3 30° 13 3 1 mem $ 300 55° EAST OF MAINE -іл MIFI 0. 0 25° S KEY: IN EACH SUBDIVISION THE TOP FIGURE INDICATES THE FREQUENCY OF ALL SIGHTINGS THE MODIF FIGURE KNIT SIGHTINGS, AND THE BOTTOM FIGURE OBJECT SIGHTINGS marc 105° FIGURE 31 FREQUENCY OF OBJECT, UNIT, AND ALL SIGHTINGS WITHIN THE UNITED STATES 1947-1952, BY SUBDIVISIONS OF ONE DEGREE OF LATITUDE AND LONGITUDE

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00 130° NORTH FARMEST 95 - 100% 125° 45° CENTRAL FARWEST 131 - 100% UNKNOWN 22.1% ASTRO 18.9% OTHER 9.5% INSUF. INFO. 1NF BALLOON 16.8% AIRCRAFT 22.1% ASTRO UNKNOWN 13.0% 16.8% OTHER L L6,9% INSUF. INFO. 16.8% AIRCRAFT 27.5% BALLOON 19.1% 115° 110 105° 100° UNKNOWN ^ 115% ASTRO 15.3% OTHER 19,2% AIRCRAFT 23.0%. INSUF. INFO. V. 15%/ BALLOON 19.2% NORTH WEST 26 = 100% CENTRAL WEST 59 - 100% 95° CANADA ASTRO 17.7% UNKNOWN 29.0% OTHER 9.6% AIRCRAFT 14.6% INSUF: BALLOON 16. 1%- 12.9% UNKNOWN 15.2% OTHER 12.8% INSUF. INFO. 15.2% BALLOON 15.5% ASTRO 20.6% AIRCRAFT 20.6% B5° 80° UNKNOWN 216% ASTRO 18.9% UNKNOWN 17.6% OTHER 10.0%. BALLOON 166 ASTRO 17.8% OTHER 8.1% 8. 1%. AIRCRAFT 28,5% INSUF. INFO. AIRCRAFT 216% (BALLOON" 21. 66. INSUF. INFO. -NORTH EAST 37 = 100% 62 = 100% 4g° 35° 30° 25° SOUTH FARWEST 103 - 100% UNKNOWN 14.6% ASTRO 14.6% OTHER 18.5% INSUF. BALLOON INFO./ 7.8% 26.2% AIRCRAFT UNKNOWN 25.4% ASTRO 33.9% OTHER 15.3% AIR. INSUF. INFO. CRAFT Y 10.2% 8.5% 16.8%1 UNKNOWN 23.8% ASTRO 29,1% OTHER 17.1% 6.3% INSUF. BALLOON INFO. 14.8% SOUTH WEST 223 - 100% AIRCRAFT 18.8% MEXICO 110° 105° CENTRAL MIDWEST 374 - 100% UNKNOWN ASTRO 28.1% AIRCRAFT 23.3% SOUTH MIDWEST 391 - 100% 85° FIGURE 32 DISTRIBUTION OF OBJECT SIGHTINGS BY EVALUATION FOR THE TWELVE REGIONAL AREAS OF THE UNITED STATES, WITH THE STRATEGIC AREAS LOCATED (STRATEGIC AREAS WERE DETERMINED ON THE BASIS OF CONCENTRATION OF OBJECT SIGHTINGS) CENTRAL EAST 393 - 100% UNKNOWN 18.2% OTHER 18.2% SOUTH EAST 22 - 100% ASTRO 22.7% AIRCRAFT 27.2% INSUF. 3.1% 4.5% INFO. BALLOON 65° EAS 45°

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80 75 6\5 6 .43 43 Insuf. Info 1.6 % Unknown 11.5 % Other 9.8% Balloon 21.3% Astro 26.2% Aircraft 29.5% New Work los object sightings El object sightings Harrisburg Washington 146 object sightingt Unknowni 10.5% Other 12.3 % Insuf. info. 16.2 % Balloon 14.3% Astro 15.1% Unknown 26.7% Other 5.5% Insuf, ag Balloon 15.8% Aircraft 30.1% Astro 16.2 % Aircraft 30.5% Unknown 14.8% Astro 18.5 % Other 14.9% Insuf. info. 12.3% Balloon 17.3 % Aircraft 22.2% Balance of Central East Region 8l object sightings -36- •36 80 7\5 6\5 FIGURE 33 COMPARISON OF EVALUATION OF OBJECT SIGHTINGS IN THE STRATEGIC AREAS OF THE CENTRAL EAST REGION B - 7511

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9'5 Chicago 66 object sighings Unknown 13.6% 16.7% Insuf. info 15.2 % Astro 16.7% Aircraft 27.3 % /Balloon 10.6% Day ion 144 object sightings Unknown 20.7 % Thare 208% Othe 11.4 % Aircraft 13.4 % Insuf. info. 16.5 % Balloon 17.0% Balance of Central Midwest Region 164 object sightings Unknown \9.7% Other 12.6% Insuf. info. 13.9 % Balloon 16.0% Astro 22.2 % Aircraft 25.7% —36 10j0 95 90 8/15 FIGURE 34 COMPARISON OF EVALUATION OF OBJECT SIGHTINGS IN THE STRATEGIC AREAS OF THE CENTRAL MIDWEST REGION B-7512

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12/5 12/0 11/5 *43 Un- known Astro 6.6 | 11.6% Other 19.4% Aircraft 23.6 % Insuf. info. 16.1% - 43- Balloon 22.6 % Unknown 10.5% Other 7.8% Astro 15.8% Insuf. info 18.4% Aircraft 36.9 % San Francisco 93 object sightings 12/5 136. Balloor 10.6% Balance of Central Farwest Region 38 object sightings - 36- 12/0 W/s FIGURE 35 COMPARISON OF EVALUATION OF OBJECT SIGHTINGS IN THE STRATEGIC AREAS OF THE CENTRAL FARWEST REGION B-7513

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100 knowi 73% Balloon 9.8 % Aircraft 12.2% Astro 56.1% Atlanta 63 object sightings B2 object sightings waco Unknown 14.3 % 8.0% Insuf. Info. 11L.1 % Balloon 20.6% Aster 25.4% Aircraft 20.6% San Antonio 36 object sightings Unknown 22.2 % Other 8,4 % *Balloon, Insuf. info. 11.2% 2.8 % 27.8 % Aircraft 27.8% Unknown 24.3 % Astro 18.1% Other 6.8 % Insut info. 10.0%/ Balloon 13.3 % Aircraft 27.7 % Balance of South Midwest Region 210 object sightings 100 95 90 85 FIGURE 36 COMPARISON OF EVALUATION OF OBJECT SIGHTINGS IN THE STRATEGIC AREAS OF THE SOUTH MIDWEST REGION B-7514

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11/5 11/0 10 5 100 -36 Inknow 5.6° Astro 18.4% Other 8.0% Insut/ info 72% Aircraft 20.8% Balloon 20.0% Balance of South West Region 125 object sightings 98 object sightings Albuquerque -36 Unknown 21.4 % Other 6.1% Insuf. info 15.1% Balloon/ 3.2%/ Aircraft 16.4 % Astro 42.9% 11/0 10/5 10/0 FIGURE 37 COMPARISON OF EVALUATION OF OBJECT SIGHTINGS IN THE STRATEGIC AREAS OF THE SOUTH WEST REGION A-7515

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12/5 12/0 115 36 Unknown 5.3 % Astro 21.1% Other 36.9 % Aircraft 15.8 % Balioon 15.8% - 36- 84 object sightings Insuf. info. 5.3% Balance of South Farwest Region 19 object sightings Los Angeles Unknown 16.7% Other 14.3 % Insuf. info. 8.3% Astro 13.1% Balloon 28,5 % Aircrof1 19.0% 12/0 1/o FIGURE 38 COMPARISON OF EVALUATION OF OBJECT SIGHTINGS IN THE STRATEGIC AREAS OF THE SOUTH FARWEST REGION B-7516 54

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This information consisted of: (1) Time and date of observation in Greenwich Civil Time (2) Latitude and longitude of the observer at the time of observation. Figure 39 shows a celestial sphere on which Z represents the ob- server's zenith, s represents the sun, and N represents the north celestial pole. Using the date and time of the observation, the longitude and declina- tion (S) of the sun were obtained from an ephemeris of the sun and corrected for the equation of time. The difference between the longitudes of the sun and the observer was taken, and called the hour angle (HA on Figure 39). Then, using the declination of the sun (S), the latitude of the observer (lat), and the hour angle (HA), the angle (ZS) between the observer's zenith and the sun can be calculated from the law of cosines of spherical trigo- nometry. Thus, cos ZS = cos (90 - lat) cos (90 - S) + sin (90 - lat) sin (90 - S) cos (HA) . Since the angle ZS is measured from the observer's zenith, the angle of elevation of the sun above the horizon for daytime sightings was found by taking 90 - ZS. When the sun was below the horizon, the angle of depres- sion of the sun below the horizon was found by taking ZS - 90. Having found the angle ZS, the bearing of the sun (angle B) was ob- tained from the formula: sin (B) = sin (90 - S) sin (HA) sin (ZS) All of the above calculations were made with IBM equipment. Sines, cosines, and their inverses were obtained from a deck of 9, 000 IBM cards on which seven-place Peter's tables of the sines, cosines, and tangents of angles had been punched for each 0. 01 of a degree from 0 to 90 degrees. Upon completion of these calculations, the cards representing OBJECT SIGHTINGS were sorted on the sign of the sine of the bearing angle. This separated the cards into two groups: (1) sightings which occurred between noon and midnight, for which the sine of the bearing angle was positive; and (2) sightings between midnight and noon, for which the sine of the bearing angle was negative. Then each of these groups was sorted into groups for intervals of 10° in angle of elevation of the sun from - 90° to +90°. A count was made of the number of cards in each group and from this a histogram was constructed (Figure 40). The UNKNOWN OBJECT SIGHTINGS were then sorted out, counted in the same manner, and a histogram was made (again see Figure 40). 55

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90-5 B Equator Earth Horizon FIGURE 39 DIAGRAM OF A CELESTIAL SPHERE A -7535 56

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bers of Object Sightings 300г 275- 250- 225- 200- 175- Sun set All object sightings - Unknown object sightings Suni rise 25- OL -90 - 60 -30 + 30 +60 +90 +60 +30 -30 -60 Angle of Elevation of The Sun FIGURE 40 FREQUENCY OF OBJECT SIGHTINGS BY ANGLE OF ELEVATION OF THE SUN, INTERVALS OF 1O DEGREES OF ANGLE A- 7536 -90

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The following points should be carefully noted about these histograms: (1) The negligible number of sightings when the sun is within 10° of the zenith and nadir (angle of elevation of the sun = #90°) of the observer is due to the fact that the southern- most latitude of the U. S. is greater than the declination of the sun at the summer solstice, so that it would be im- possible for the sun to reach the zenith or nadir of any observer in the U. S. (where most of the sightings were made). (2) The time of day at which a particular angle of elevation of the sun occurs does not remain fixed but varies from day to day. Consider, for example, the variation in sunrise and sunset times over the course of a year. Thus, there are only two inferences to be made from this histogram: (1) the high peak of sightings soon after sunset, and (2) the lack of increase in the UNKNOWNS relative to the KNOWNS near either sunset or sunrise. This would seem to discount the possibility that atmospheric phenomena such as mock suns were the primary cause of the unknown reports, since such phenomena usually occur when the sun is near the horizon. The Local Sun Time was computed as a step in the calculation of the angle of elevation of the sun. It is related to the hour angle by the equation: Local Sun Time (L.S. T.) = HA/15 + 12. 00, where L.S. T. is in hours and HA in degrees. The cards were grouped on the basis of L. S. T. in intervals of one hour, and the number of cards in each interval was counted. Again the UNKNOWNS were sorted out and similarly treated. Histograms were con- structed with the results of these tabulations of OBJECT SIGHTINGS (Figure 41). Here, again, there is a peak in the early evening hours. The cards were then broken up into seven groups on the basis of the angle of elevation of the sun, as follows: Group 1 - Daylight sightings for which the sun was more than 10° above the horizon. Group 2 - Sunset sightings for which the sun was between 0° and 10° above the horizon. Group 3 - Sunset sightings for which the sun was between 0° and 10° below the horizon. Group 4 - Evening sightings for which the sun was between 10° and 40° below the horizon. 58

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300г 275- 250₽ 200- Object 175. 150-Midnight 125- 100+ 75° 50- 25- {Midnight Noon All object sightings Unknown object sightings 0300 0600 0900 1200 1500 1800 2100 2400 Local Sun Time FIGURE 41 FREQUENCY OF OBJECT SIGHTINGS BY LOCAL SUN TIME, INTERVALS OF ONE HOUR A-7537

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Group 5 - Night sightings for which the sun was more than 10° below the horizon and which were not included in Group 4. Group 6 - Sunrise sightings for which the sun was between 0° and 10° below the horizon. Group 7 - Sunrise sightings for which the sun was between 0° and 10° above the horizon. These group numbers were punched on the cards and incorporated into the coding system. The number of OBJECT SIGHTINGS in each group for each identification was then tabulated and is given in Table I. TABLE I OBJECT SIGHTINGS Identification I Angle of Elevation Group 2 3 4 5 6 7 Balloon Astronomical Aircraft Light phenomena Insufficient information UNKNOWN Other 156 52 187 Total 72 134 64 673 17 6 23 2 12 14 8 82 28 43 49 26 25 187 83 236 144 25 76 150 50 764 40 118 60 7 28 86 36 375 9 2 0 ONa 6 3 25 24 According to this table, a large majority of the KNOWN OBJECT SIGHTINGS in Group 1 (343 out of 467) were either aircraft or balloons. In Groups 4 and 5 combined, a large majority (681 out of 899) were either balloons, aircraft, or astronomical. Accordingly, a re-evaluation of the UNKNOWNS in these three groups was planned with the objective of deter- mining which of the UNKNOWNS in Group 1 might possibly be aircraft or balloons and which of the UNKNOWNS in Groups 4 and 5 might possibly be balloons, aircraft, or astronomical objects. More will be said of this project later. Statistical Chi Square Test In the meantime, mirror graphs had been constructed from the fre- quency tabulations which seemed to show that, when the KNOWNS (total less JNKNOWNS) and the UNKNOWNS were grouped according to one of si› characteristics, the percentage of KNOWNS and the percentage of 60

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UNKNOWNS in each characteristic group showed the same general trend. In other words, on the basis of these graphs, it looked as though there was a good possibility that the UNKNOWNS were no different from the KNOWNS, at least in the aggregate. It was decided to investigate this by the use of a statistical procedure called the "Chi Square Test". The Chi Square Test is a statistical test of the likelihood that two distributions come from the same population, that is, it gives the proba- bility that there is no difference in the make-up of the two distributions being measured. The method is outlined as follows: (1) Adjust the distributions by multiplying the KNOWNS in each characteristic group by the ratio of the total number of UNKNOWNS to the total number of KNOWNS. (The Chi Square Test is applicable only to distributions which have the same total number of elements.) (2) Take the difference between the number of UNKNOWNS and the adjusted number of KNOWNS in each characteristic group. (3) Square the remainder from Step 2. (4) Divide the result of Step 3 by the corresponding number of adjusted KNOWNS. This is the chi square for the particular group. Summing the indi- ridual chi squares over the groups of a characteristic gives the chi square or that characteristic. This number is then compared with a table of the distribution of chi square which can be found in many texts on elementary statistics. It will be noted that chi square is tabulated in terms of degrees of freedom which in this case is one less than the number of groups of sight- ings for each characteristic. The tabulations of KNOWNS and UNKNOWNS against the six char- acteristics and the Chi Square Test as it was applied are shown in Tables Il through VII. In each case, the number of degrees of freedom is given, as is the value of chi squares corresponding to probabilities of 5 per cent and l per cent that two distributions with this number of degrees of freedom come from the same population. Since the greater the value of chi square the smaller the probability of homogeneity of two distributions, a calculated value of chi square greater than either the 5 per cent or l per cent values will indicate a probability less than 5 per cent or 1 per cent, respectively, that the two distributions are homogeneous. The term homogeneity is used here to indicate that two distributions could have come from the same population. 61

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Color White Metallic Not stated Orange Red Yellow Green Blue Other Total TABLE II CHI SQUARE TEST OF KNOWNS VERSUS UNKNOWNS ON THE BASIS OF COLOR Number of KNOWNS 405 313 209 172 146 128 130 67 195 1765 Adjusted Number of KNOWNS (K) Number of UNKNOWNS (n) 100 77 51 42 36 31 32 17 48 434 112 76 62 49 33 31 14 26 31 434 Degrees of freedom 5% 1% x2 (K-n) 2 K 1.44 0.01 2.37 1. 17 0. 25 10. 13 4.76 6.02 26. 15 8 15. 5 20.1 62

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TABLE III Number of Objects Per Sighting 1 2 3-10 11 or more Not stated Total Degrees of freedom 5% 1% Number of KNOWNS 1339 159 185 41 41 1765 CHI SQUARE TEST OF KNOWNS VERSUS UNKNOWNS ON THE BASIS OF NUMBER Adjusted Number of KNOWNS (K) Number of UNKNOWNS (n) 329 39 46 10 10 434 297 37 70 25 5 434 (K -n)2 K 3.11 0.10 12.52 22.50 2. 50 40.73 9.5 13. 3 63

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Shape Elliptical Rocket and aircraft Meteor or comet Teardrop, lenticular, or conical Flame Other Not stated Total Degrees of freedom 5% 1% TABLE IV CHI SQUARE TEST OF KNOWNS VERSUS UNKNOWNS ON THE BASIS OF SHAPE Number of KNOWNS Adjusted Number of Number of KNOWNS (K) UNKNOWNS (n) 838 80 55 103 206 20 14 25 195 33 4 22 96 193 400 1765 24 47 98 10 54 116 434 434 64 x2, (K -n)2 K 0. 59 8.45 7.14 0.36 8.17 1.04 3.30 29.05 6 12.6 16.8

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TABLE V CHI SQUARE TEST OF KNOWNS VERSUS UNKNOWNS ON THE BASIS OF DURATION OF OBSERVATION Duration of Observation 5 sec or less 6-10 sec 11-30 sec 31-60 sec 61 sec-5 min 6-30 min Over 30 min Not stated Total Number of KNOWNS Adjusted Number of KNOWNS (K) Number of UNKNOWNS (n) 259 92 153 108 269 305 135 444 1765 Degrees of freedom 5% 1% 64 23 38 26 66 75 33 109 434 27 21 33 42 99 71 37 104 434 x2 (K -n)? K 21. 39 o. b7 9.85 16.50 0.21 0. 48 0.23 49. 49 14. 1 18.5 65

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Speed Stationary Less than 100 mph 100 to 400 mph Over 400 mph Meteor-like Not stated Total TABLE VI CHI SQUARE TEST OF KNOWNS VERSUS UNKNOWNS ON THE BASIS OF SPEED Number of KNOWNS Adjusted Number of KNOWNS (K) Number of UNKNOWNS (n) 249 154 181 403 83 695 1765 61 38 45 99 20 171 434 53 26 58 145 16 136 434 Degrees of freedom 5% 1% (K-n)? K 1. 05 3.79 3. 76 21.37. 0. 80 7. 16 37.93 5 11.1 15.1 66

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TABLE VII CHI SQUARE TEST OF KNOWNS VERSUS UNKNOWNS ON THE BASIS OF LIGHT BRIGHTNESS Adjusted Number of Number of Number of KNOWNS KNOWNS (K) UNKNOWNS (n) 47 151 76 273 68 1150 1765 11 37 19 67 17 283 434 14 28 16 61 22 293 - 434 Light Brightness Sunlight on mirror Sunlight on aluminum Sunlight on plaster, stone, or soil Brighter than moon Like moon or duller than moon Not stated Total Degrees of freedom 5% 1% (K-n)? 0.82 2. 19 0.47 0. 55 1.47 0.35 5.85 5 11.1 15. 1 67

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In five of the six cases, the probability is less than l per cent that the distributions are the same. In the sixth case, Light Brightness, the classifications are too nebulous to be of real value. However, these tests do not necessarily mean that the UNKNOWNS are primarily "flying saucers" and not aircraft, balloons, or other known objects or natural phenomena. The UNKNOWNS might still be unidentified KNOWNS if either of the follow- ing cases occurred: (1) The characteristics which were observed for the UNKNOWNS were different from those observed for the KNOWNS because of the psychological make-up of the observer or because of atmospheric distortion. This assumes the distribution of objects in KNOWNS and UNKNOWNS is the same. (2) The UNKNOWNS may be known objects in different propor- tions than the group identified as KNOWNS. (That is, a greater percentage of the UNKNOWNS could be aircraft than the percentage of aircraft in the identified KNOWNS.) The second case is the more probable one. In this connection, it is interesting to note the factors which contributed to a large chi square result in the tests made above: (1) Color The major contribution to chi square in color is from the color green. There is a large excess of green sightings among the KNOWNS over the UNKNOWNS. Of the 130 cnown objects in this classification, 98 are astronomical, and are due mostly to the green fireballs reported from the Southwest U. S. (2) Number The large chi square is due to a greater proportion of UNKNOWNS in the multiple object classification. Apparently these are harder to identify. (3) Shape In this case, there is a higher percentage of UNKNOWNS in the rocket-aircraft-shape classification. These might be familiar objects for which unusual maneuvers were reported. There is a higher percentage of KNOWNS in the flame and in the meteor- or comet-shape category, which in both cases appears to result mainly from excesses of astronomical sightings. 68

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(4) Duration of observation Here there is an excess of KNOWNS in the less-than- 5-second group. Again, the majority of KNOWNS in this group are astronomical. The greater proportior of UNKNOWNS in the 31- to 60-second and 61-second to 5-minute groups cannot be explained. (5) Speed The major contribution to chi square for this char- acteristic is due to a large excess of UNKNOWNS in the over 400-mph class. It can be assumed that some of the excessive speeds are inaccuracies in estimates by observers. However, some radar sightings, which are practically impossible to identify, show objects with speeds of 1, 000 to 2, 000 mph and over, and these reports account for a number of these UNKNOWNS. (6) Light brightness Since this chi square was not significant, it is not necessary to discuss it here. An examination of these discrepancies thus brings up a very interest- ing point. In every case for which there is a significant excess of KNOWNS over UNKNOWNS, the excess can be attributed to an excess of identifiable astronomical phenomena. This would seem to lead to the conclusion that astronomical phenomena are easy to identify and there are very few left in the UNKNOWNS. Accordingly, the astronomical object sightings were deleted from the KNOWN object sightings and the Chi Square Test was again applied. The results are shown in Tables VIII through XIII, where in this case the KNOWNS do not contain astronomical sightings. It will be noted that some groups were combined when the adjusted number of KNOWNS was ten or less, except for the case for which the number of objects per sighting was the characteristic studied. These were borderline cases, and no good combination of groups existed. It is apparent that the deletion of astronomical sightings gives a better fit, although the decision is not clear cut, since for two cases (light bright- ness and speed), the chi square increased. However, it can again be pointed out that the reporting of these two characteristics is highly subjective and is open to question. The estimation of speed is especially open to question because of the impossibility of accurately determining it visually. 69

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Color • White Metallic Not stated Orange Red Yellow Green Blue Other Total TABLE VIII CHI SQUARE TEST OF REVISED KNOWNS VERSUS UNKNOWNS ON THE BASIS OF COLOR Number of KNOWNS Adjusted Number of KNOWNS (K) Number of UNKNOWNS (n) 281 298 189 117 92 90 32 29 158 95 101 64 39 31 30 11 10 53 112 76 62 49 33 31 14 26\ 311 1286 434 434 Degrees of freedom 5% 1% (K-n) 2 K 3.04 6.19 0. 06 2.56 0.13 0.03 0.82 0.57 13. 40 7 14.1 18.5 70

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Number of Objects Per Sighting 1 2 3-10 11 or more Not stated Total Degrees of freedom 5% 1% TABLE IX CHI SQUARE TEST OF REVISED KNOWNS VERSUS UNKNOWNS ON THE BASIS OF NUMBER Number of KNOWNS 913 142 168 34 29 1286 Adjusted Number of KNOWNS (K) Number of UNKNOWNS (n) 308 48 57 11 10 297 37 70 25 5 434 434 K 0.39 2.52 2.96 15.36 2.50 23.73 4 9.5 13.3 71

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TABLE X CHI SQUARE TEST OF REVISED KNOWNS VERSUS UNKNOWNS ON THE BASIS OF SHAPE Number of KNOWNS Adjusted Number of KNOWNS (K) Number of UNKNOWNS (n) 632 72 213 9 24 195 33 3 47 16 79 27 22 151 296 51 100 1286 434 54 116 434 Shape Elliptical Rocket or aircraft Meteor or comet Flame Teardrop, lenticular, or conical Other Not stated Total Degrees of freedom 5% 1% ×?, (K-n)? K 1.52 3.37 1.32 0.93 1. 76 2.56 11. 46 5 11.1 15.1 72

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TABLE XI CHI SQUARE TEST OF REVISED KNOWNS VERSUS UNKNOWNS ON THE BASIS OF DURATION OF OBSERVATION Duration of Observation 5 sec or less 6-10 sec 11-30 sec 31-60 sec 61 sec-5 min 6 min-30 min Over 30 min Not stated Total Number of KNOWNS Adjusted Number of KNOWNS (K) Number of UNKNOWNS (n) (K -n) 2 K 92 47 118 92 252 259 91 335 1286 Degrees of freedom 5% 1% 31 16 40 31 85 87 31 113 434 27 21 33 42 99 71 37 104 434 0.52 1. 56 1.23 3.90 2.31 2.94 1. 16 0.72 14.34 14.1 18.5 73

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TABLE XII CHI SQUARE TEST OF REVISED KNOWNS VERSUS UNKNOWNS ON THE BASIS OF SPEED Speed Stationary Less than 100 mph 100 to 400 mph Over 400 mph Meteor-like Not stated Total Number of KNOWNS Adjusted Number of KNOWNS (K) Number of UNKNOWNS (n) 196 128 156 291 24 491 1286 66 43 53 98 8 166 434 53 26 58 145} 136 - 434 (K-n/2 2.56 6.72 0.47 28.54 5.42 43.71 Degrees of freedom 5% 1% 9.5 13.3 74

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TABLE XIII CHI SQUARE TEST OF REVISED KNOWNS VERSUS UNKNOWNS ON THE BASIS OF LIGHT BRIGHTNESS Light Brightness Sunlight on mirror Sunlight on aluminum Sunlight on plaster, stone, or soil Brighter than moon Like moon or duller than moon Not stated Total Number of KNOWNS Adjusted Number of KNOWNS (K) Number of UNKNOWNS (n) K Degrees of freedom 5% 1% 24 136 63 143 42 878 1286 8 46 21 48 15 296 434 16 61 22 293 434 2.67 1.19 3.52 3.27 0.03 10.68 4 9.5 13.3 75

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Another interesting aspect of these new tests is that there are only two large discrepancies in all of the groups. These are for the ll or more groups in the classification by number of objects per sighting and for the over-400-mph and meteor-like group for the classification by speed. The first was relatively unchanged by deletion of the astronomical sightings principally because of the concentration of sightings in the single-object category. The second was slightly increased by the removal of the astro- nomical sightings from the meteor-like classification. However, the main discrepancy, that of the excess of UNKNOWNS in the over 400-mph class, was little changed. The results of these tests are inconclusive since they neither confirm nor deny that the UNKNOWNS are primarily unidentified KNOWNS, although they do indicate that relatively few of the UNKNOWNS are actually astro- nomical phenomena. It was decided that this process would not be carried to its logical conclusion (that is, the determination of a linear combination of KNOWNS that would give a negligible chi square when compared with the UNKNOWNS), since it was felt that the inaccuracies in the reports would give a distorted and meaningless result. The "Flying Saucer" Model The importance of the problem dictated a second approach, should the statistical results prove inconclusive. It was decided that an attempt would be made to describe the physical appearance, flight characteristics, and other attributes (that is, construct a model) of a class or classes of "flying saucers". Preparatory to this attempt, a re-evaluation of the UNKNOWNS was necessary. This re-evaluation was accomplished by a panel composed only of persons previously associated with the work. Using all the UNKNOWNS reports available at ATIC, the panel made a careful study of the reports for the UNKNOWN SIGHTINGS in angle-of-sun elevation Groups 1, 2, 3, 6, and 7 - those groups for which the sun was either above the horizon or less than 10° in elevation below the horizon. This study had two purposes. The first was to determine, with additional information such as the angle of elevation of the sun, how many of the UNKNOWNS might be ascribed to known phenomena. The second was to obtain those UNKNOWNS which were described in sufficient detail that they might be used to construct a model or models of "flying saucers". It was decided to put any of the UNKNOWNS which might be known phenomena into a "possible KNOWN" category to denote the slightly lower confidence level which could be ascribed to these new evaluations. The 76

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UNKNOWNS with sufficiently detailed description would be called "good UNKNOWNS", while the remainder would simply be called UNKNOWNS. One hundred sixty-four folders of a total of 186 OBJECT SIGHTINGS in Groups 1, 2, 3, 6, and 7 were examined. There were 18 possible aircraft, 20 possible balloons, 7 good UNKNOWNS, 100 UNKNOWNS, and 19 others which were identified as being possible KNOWNS of various types. It is interesting to note that two of these were established as mock suns on the basis of the angle of sun elevation and the sun bearing angle, together with the direction of the object from the observer. In addition, the UNKNOWNS in angle-of-sun-elevation Groups 4 and 5 (nighttime sightings) were scanned with no attempt at identification, but to find any possible "good UNKNOWNS". There were five sightings that could be put into this category. Of the UNKNOWNS, there were approximately 20 sightings that were observed in such a way that they should have been recognized easily if they had been familiar objects, that is, there was little possibility that their shapes, as seen, could have been distorted sufficiently by one cause or another to render them unrecognizable. There were a very few that would have been identified as guided missiles or rockets, but that were not so identified because of the geographical location in which they were seen. All of the remaining UNKNOWNS were classified as such solely be- cause they were reported to have performed maneuvers that could not be ascribed to any known objects. In these cases, the shape might have been unrecognizable also, but it was felt that this was because of distortion and distance, or because of darkness. This is a very important point. To put it differently, if these UNKNOWNS, which represent all but about 40 of the UNKNOWN SIGHTINGS, were reported to have performed maneuvers which could be ascribed to known phenomena, they would probably have been identified as KNOWNS. With the exception of some radar sightings, all of these maneuvers were observed visually. The possibilities for inaccuracies are great because of the inability of an observer to estimate visually size, distance, and speed. Reports of sightings by radar usually were of high-speed objects, some at extremely high altitudes. Some were identified as UNKNOWNS because there was no object to be seen visually at the point indicated by the radar set. It cannot be said with any assurance what these radar sightings mean, but the most logical explanation is that they are ground targets re- flected by an atmospheric temperature inversion layer. The validity of this statement cannot be established. It is felt that radar sightings in this study are of no significance whatsoever unless a visual sighting of the object also is made. Taken in conjunction with the Chi Square Tests discussed earlier, the results of the re-evaluation of reports identified as UNKNOWN SIGHTINGS would seem to indicate that the majority of them could easily 77

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have been familiar objects. However, the resolution of this question with any degree of certainty appears to be impossible. Thus, out of the 434 OBJECT SIGHTINGS that were identified as UNKNOWNS by the data reduction process, there were only 12 that were described with sufficient detail that they could be used in an attempt to derive a model of a "flying saucer". The following is a summary of the 12 good UNKNOWN SIGHTINGS: Case I (Serial 0573.00) Two men employed by a rug-cleaning firm were driving across a bridge at 0955 hours on July 29, 1948, when they saw an object glide across the road a few hundred feet in front of them. It was shiny and metallic in construction, about 6 to 8 feet long and 2 feet wide. It was in a flat glide path at an altitude of about 30 feet and in a moderate turn to the left. It was seen for only a few seconds and apparently went down in a wooded area, although no trace of it was found. — 6' to 8' 1-1/2' × 2' These are round cups which protrude Case II (Serial 4508. 00) A naval aviation student, his wife, and several others were at a drive-in movie from 2115 to 2240 hours on April 20, 1952, during which time they saw several groups of objects fly over. There were from two to nine objects in a group and there were about 20 groups. The groups of 78

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objects flew in a straight line except for some changes in direction accomplished in a manner like any standard aircraft turn. The objects were shaped like conventional aircraft. The unaccount- able feature of the objects was that each had a red glow surrounding it and was glowing itself, although it was a cloudless night. / Light glow "Fuzzy area Case II (Serial 2013.00, 2014.00, and 2014.01) Two tower operators sighted a light over a city airport at 2020 hours on January 20, 1951. Since a commercial plane was taking off at this time, the pilots were asked to investigate this light. They observed it at 2026 hours. According to them, it flew abreast of them at a greater radius as they made their climbing turn, during which time it blinked some lights which looked like running lights. While the observing plane was still in its climbing turn, the object made a turn toward the plane and flew across its nose. As the two men turned their heads to watch it, it instantly appeared on their other side flying in the same direction as they were flying, and then in 2 or 3 seconds it slipped under them, and they did not see it again. Total time of the observation was not stated. In appearance, it was like an airplane with a cigar-shaped body and straight wings, some- what larger than a B-29. No engine nacelles were observed on the wings. 79

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Case IV (Serial 4599. 00) A part-time farmer and a hired hand were curing tobacco at midnight on July 19, 1952, when they looked up and saw two cigar-shaped objects. One hovered while the other moved to the east and came back, at which time both ascended until out of sight. Duration of observation was 3 to 4 minutes. Both had an exhaust at one end, and neither had projections of any kind. It was stated that they appeared to be transparent and illuminated from the inside. Lighted Exhaust 80

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Case V (Serial 0565.00 to 0565.03) A pilot and copilot were flying a DC-3 at 0340 hours on July 24, 1948, when they saw an object coming toward them. It passed to the right and slightly above them, at which time it went into a steep climb and was lost from sight in some clouds. Duration of the observation was about 10 seconds. One passenger was able to catch a flash of light as the object passed. The object seemed powered by rocket or jet motors shooting a trail of fire some 50 feet to the rear of the object. The object had no wings • or other protrusion and had two rows of lighted windows. Cockpit windshield? Pilot Windows with white light Black Copilot 81

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Case VI (Serial 4822. 00) An instrument technician, while driving from a large city toward an Air Force base on December 22, 1952, saw an object from his car at 1930 hours. He stopped his car to watch it. It suddenly moved up toward the zenith in spurts from right to left at an angle of about 45°. It then moved off in level flight at a high rate of speed, during which maneuver it appeared white most of the time, but apparently rolled three times showing a red 'side. About halfway through its roll it showed no light at all. It finally assumed a position to the south of the planet Jupiter at a high altitude, at which position it darted back and forth, left and right alternately. Total time of the observation was 15 minutes. Apparently, the observer just stopped watching the object. White No light Deep red 82

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Case VII (Serial 2728. 00) A Flight Sergeant saw an object over an Air Force base in Korea at 0842 hours on June 6, 1952. The object flew in a series of spinning and tumbling actions. It was on an erratic course, first flying level, then stopping momentarily, shooting straight up, flying level and again tumbling, then changing course and disappearing into the sun. It reappeared and was seen flying back and forth across the sun. At one time an F-86 passed between the observer and the object. He pointed it out to another man who saw it as it maneuvered near the sun. Rotation Black lines evenly spaced Proportion 7 to 1 (Dimensions are os shown in observer's original drawing) 83

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Case VIII (Serial 0576. 00) An electrician was standing by the bathroom window of his home, facing west, at 0825 hours on July 31, 1948, when he first sighted an object. He ran to his kitchen where he pointed out the object to his wife. Total time in sight was approximately 10 seconds, during which the object flew on a straight and level course from horizon to horizon, west to east. Noted shadow 6' to 8' 20' (Ratio approx. 3:1) 84

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Case IX (Serial 0066. 00) A farmer and his two sons, aged 8 and 10, were at his fishing camp on August 13, 1947. At about 1300 hours, he went to look for the boys, having sent them to the river for some tape from his boat. He noticed an object some 300 feet away, 75 feet above the ground. He saw it against the background of the canyon wall which was 400 feet high at this point. It was hedge hopping, following the contour of the ground, was sky blue, about 20 feet in diameter and 10 feet thick, and had pods on the side from which flames were shooting out. It made a swishing sound. The observer stated that the trees were highly agitated by the craft as it passed over. His two sons also observed the object. No one saw the object for more than a few seconds. • Side view End view 85

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Case X (Serial 1119. 00) An employee in the supersonic laboratory of an aeronautical lab- oratory and some other employees of this lab, were by a river, 2-1/2 miles from its mouth, when they saw an object. The time was about 1700 hours on May 24, 1949. The object was reflecting sunlight when observed by naked eye. However, he then looked at it with 8-power binoculars, at which time there was no glare. (Did glasses have filter?) It was of metallic construction and was seen with good enough resolution to show that the skin was dirty. It moved off in horizontal flight at a gradually in- creasing rate of speed, until it seemed to approach the speed of a jet before it disappeared. No propulsion was apparent. Time of observation was 2-1/2 to 3 minutes. Something equivalent to a patch Smoother in front Direction of motion Rough and wrinkled in rear -Surface appeared dirty and spotty in color 86

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Case XI (Serial 1550. 00) On March 20, 1950, a Reserve Air Force Captain and an airlines Captain were flying a commercial airlines flight. At 21:26, the airline Captain directed the attention of the Reserve Air Force Captain to an object which apparently was flying at high speed, approaching the airliner from the south on a north heading. The Reserve Air Force Captain focused his attention on the object. Both crew members watched it as it passed in front of them and went out of sight to the right. The observation, which lasted about 25 to 35 seconds, occurred about 15 miles north of a medium-sized When the object passed in front of the airliner, it was not more than 1/2 mile distant and at an altitude of about 1000 feet higher than the airliner. The object appeared to be circular, with a diameter of approximately 100 feet and with a vertical height considerably less than the diameter, giving the object a disc-like shape. In the top center was a light which was blinking at an estimated 3 flashes per second. This light was so brilliant that it would have been impossible to look at it continuously had it not been blinking. This light could be seen only when the object was approaching and after it had passed the airliner. When the object passed in front of the 9 to 12 symmetrical oval or circular portholes located in a circle approxi- mately 3/4 of the distance from the center to the outer edge. Through these portholes came a soft purple light about the shade of aircraft fluorescent lights. The object was traveling in a straight line without spinning. Con- sidering the visibility, the length of time the object was in sight, and the distance from the object, the Reserve Air Force Captain estimates the speed to be in excess of 1000 mph. 87

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Flashing light Portholes 88

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Case XII (Serial 3601. 00) At 0535 on the morning of August 25, 1952, a musician for a radio station was driving to work from his home when he noticed an object hovering about 10 feet above a field near the road along which he was driving. As he came abreast of the object, he stopped his car and got out to watch. Having an artificial leg, he could not leave the road, since the surrounding terrain was rough. However, he was within about 100 yards of it at the point he was standing on the road. The object was not absolutely still, but seemed to rock slightly as it hovered. When he turned off the motor of his car, he could hear a deep throbbing sound coming from the object. As he got out of the car, the object began a vertical ascent with a sound similar to "a large covey of quail starting to fly at one time". The object ascended vertically through broken clouds until out of sight. His view was not obscured by clouds. The observer states that the vegetation was blown about by the object when it was near the ground. Description of the object is as follows: It was about 75 feet long, 45 feet wide, and 15 feet thick, shaped like two oval meat platters placed together. It was a dull aluminum color, and had a smooth surface. A medium-blue continuous light shone through the one window in the front section. The head and shoulders of one man, sitting motionless, facing the forward edge of the object, were visible. In the midsection of the object were several windows extending from the top to the rear edge of the object; the midsection of the ship had a blue light which gradually changed to different shades. There was a large amount of activity and movement in the midsection that could not be identified as either human or mechanical, although it did not have a regular pattern of movement. There were no windows, doors or portholes, vents, seams, etc., visible to the observer in the rear section of the object or under the object (viewed at time of ascent). Another identifiable feature was a series of propellers 6 to 12 inches in diameter spaced closely together along the outer edge of the object. These propellers were mounted on a bracket so that they revolved in a horizontal plane along the edge of the object. The propellers were revolving at a high rate of speed. Investigation of the area soon afterward showed some evidence of vegetation being blown around. An examination of grass and soil samples taken indicated nothing unusual. Reliability of the observer was considered good. 89

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20' to 25' height Approximately 75' long 90

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These 12 sightings can be classed into four categories on the basis of their shapes, as follows: (1) Propeller shape - Case I (2) Aircraft shape - Cases II and III (3) Cigar shape - Cases IV and V (4) Elliptical or disc shape - Cases VI to XII The criterion for choosing the above sightings was that their descrip- tions were given in enough detail to permit diagrams of the objects to be drawn. It might be noted here that in all but one of these cases (Case XI) the observer had already drawn a diagram of what he had seen. The objective of this section of the study was the conceiving of a model, or models. The requirement that the description be detailed is an important one, and was the easiest to determine in the re-evaluation pro- gram. However, a good model ought to satisfy the following conditions as well: (1) The general shape of the object and the maneuvers it performed should fit the reports of many of the UNKNOWNS and thus explain them. (2) The observer and the report should be reliable. (3) The report should contain elements which should have been observed with accuracy, and which eliminate the possibility that the sighting could be ascribed to a familiar object or to a known natural phenomenon. (4) The model should be derived from two or more good UNKNOWNS between which there is no essential conflict. It can be shown that it is not possible to deduce a model from the 12 cases that will satisfy all of these conditions. The following case-by-case discussion of the 12 good UNKNOWNS will illustrate this point: (1) Case I does not satisfy Conditions 1 and 4. The reported shape of this object is not duplicated in any of the other UNKNOWNS. (2) Case Il does not satisfy Conditions 1 and 3. There are very few UNKNOWNS in the aircraft shape classification. In addition, the unusual characteristic of this sighting (i.e., the red glow) could have been reflection of the lights of Flint from the objects if they were either birds or aircraft. 91

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(3) Case Ill does not satisfy Condition 1. It also does not satisfy Condition 4 when Case Il is eliminated as a good UNKNOWN. (4) Case IV does not satisfy Conditions 1 or 2. There are few cigar-shaped or rocket-shaped objects reported in the literature. In addition, this observer is not con- sidered to be well-qualified technically. (5) Case V does not satisfy Condition 1. It also does not satisfy Condition 4 when Case IV is eliminated as a good UNKNOWN. It might be argued here that many of the UNKNOWNS might actually have shapes similar to these good UNKNOWNS. It will be noted, however, that each of these five cases does not satisfy one of the other three condi- tions. (6) Case VI does not satisfy Condition 2. In the description of the object, it was stated that at certain times there was no light seen from the object. Apparently, the "band of no light", as diagrammed by the observer, was an attempt to explain this. However, if the object were constructed as shown in the diagram, light should have been seen at all times. Because of this conflict the drawing is not considered reliable, and without the draw- ing, there is not enough detail in the description to make it useful for this study. (7) Case VII violates Conditions I and 4. Although the shape is disc-like, the maneuvers performed by the object are unique both among the UNKNOWNS and among the good UNKNOWNS. Cases VIII to XII satisfy Conditions I through 3, but they do not satisfy Condition 4. The features which make them different from each other are as follows: (8) Case VIII. The object is smooth, with no protrusions or other details. (9) Case IX. The object had rocket or jet pods on each side that were shooting out flames. (10) Case X. The object had a fin or rudder. (11) Case XI. The object had a series of portholes, or windows, on its under side. 92

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(12) Case XII. The object had windows in its top and front and its top midsection. It also had a set of propellers around its waist. It is not possible, therefore, to derive a verified model of a "flying saucer from the data that have been gathered to date. This point is im- portant enough to emphasize. Out of about 4, 000 people who said they saw a "flying saucer", sufficiently detailed descriptions were given in only 12 cases. Having culled the cream of the crop, it is still impossible to develop a picture of what a "flying saucer" is. In addition to this study of the good UNKNOWNS, an attempt was made to find groups of UNKNOWNS for which the observed characteristics were the same. No such groups were found. On the basis of this evidence, therefore, there is a low probability that any of the UNKNOWNS represent observations of a class of "flying saucers". It may be that some reports represent observations of not one but several classes of objects that might have been "flying saucers"; however, the lack of evidence to confirm even one class would seem to make this possibility remote. It is pointed out that some of the cases of KNOWNS, before identification, appeared fully as bizarre as any of the 12 cases of good UNKNOWNS, and, in fact, would have been placed in the class of good UNKNOWNS had it not been possible to establish their identity. This is, of course, contrary to the bulk of the publicity that has been given to this problem. The reason for the nature of this publicity was clearly brought out during the re-evaluation study. It is a definite fact that upon reading a few reports, the reader becomes convinced that "flying saucers" are real and are some form of sinister contrivance. This reaction is independent of the training of the reader or of his attitude toward the problem prior to the initial contact. It is unfortunate that practically all of the articles, books, and news stories dealing with the phenomenon of the "flying saucer" were written by men who were in this category, that is, men who had read only a few selected reports. This is accentuated by the fact that, as a rule, only the more lurid-sounding reports are cited in these publications. Were it not for this common psychological tendency to be captivated by the mysterious, it is possible that no problem of this nature would exist. The reaction, mentioned above, that after reading a few reports, the reader is convinced that "flying saucers" are real and are some form of sinister contrivance, is very misleading. As more and more of the reports are read, the feeling that "saucers" are real fades, and is replaced by a feeling of skepticism regarding their existence. The reader eventually reaches a point of saturation, after which the reports contain no new infor- mation at all and are no longer of any interest. This feeling of surfeit was universal among the personnel who worked on this project, and continually necessitated a conscious effort on their part to remain objective. 93

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CONCLUSIONS It can never be absolutely proven that "flying saucers" do not exist. This would be true if the data obtained were to include complete scientific measurements of the attributes of each sighting, as well as complete and detailed descriptions of the objects sighted. It might be possible to demon- strate the existence of "flying saucers" with data of this type, IF they were to exist. Although the reports considered in this study usually did not contain scientific measurements of the attributes of each sighting, it was possible to establish certain valid conclusions by the application of statistical methods in the treatment of the data. Scientifically evaluated and arranged, the data as a whole did not show any marked patterns or trends. The in- accuracies inherent in this type of data, in addition to the incompleteness of a large proportion of the reports, may have obscured any patterns or trends that otherwise would have been evident. This absence of indicative relation- ships necessitated an exhaustive study of selected facets of the data in order to draw any valid conclusions. A critical examination of the distributions of the important char- acteristics of sightings, plus an intensive study of the sightings evaluated as UNKNOWN, led to the conclusion that a combination of factors, prin- cipally the reported maneuvers of the objects and the unavailability of supplemental data such as aircraft flight plans or balloon-launching records, resulted in the failure to identify as KNOWNS most of the reports of objects classified as UNKNOWNS. An intensive study, aimed at finding a verified example of a "flying saucer"' or at deriving a verified model or models of "flying saucers" (as defined on Page l), led to the conclusion that neither goal could be attained using the present data. It is emphasized that there was a complete lack of any valid evidence consisting of physical matter in any case of a reported unidentified aerial object. Thus, the probability that any of the UNKNOWNS considered in this study are "flying saucers" is concluded to be extremely small, since the most complete and reliable reports from the present data, when isolated and studied, conclusively failed to reveal even a rough model, and since the data as a whole failed to reveal any marked patterns or trends. Therefore, on the basis of this evaluation of the information, it is considered to be highly improbable that any of the reports of unidentified aerial objects examined in this study represent observations of technologi- cal developments outside the range of present-day scientific knowledge. 94

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APPENDIX A TABULATIONS OF FREQUENCY AND PERCENTAGE DISTRIBUTIONS BY CHARACTERISTICS 95 and 96

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INDEX OF TABLES Table Al. Evaluation of All Sightings by Years ... Table A2. Evaluation of Unit Sightings by Years Table A3. Evaluation of Object Sightings by Years Table A4. Evaluation of All Sightings by Month of Year, All Years...... Table A5. Evaluation of All Sightings by Month of Year, 1947 ........ Table A6. Evaluation of All Sightings by Month of Year, 1948 ...... Table A7. Evaluation of All Sightings by Month of Year, 1949 ..... Table A8. Evaluation of All Sightings by Month of Year, 1950 Table A9. Evaluation of All Sightings by Month of Year, 1951 г...... Table A10. Evaluation of All Sightings by Month of Year, 1952 Table All. Evaluation of Unit Sightings by Month of Year, All Years Table A12. Evaluation of Unit Sightings by Month of Year, 1947 • Table A13. Evaluation of Unit Sightings by Month of Year, 1948 Table A14. Evaluation of Unit Sightings by Month of Year, 1949 Table A15. Evaluation of Unit Sightings by Month of Year, 1950 Table A16. Evaluation of Unit Sightings by Month of Year, 1951 Table A17. Evaluation of Unit Sightings by Month of Year, 1952 Table A18. Evaluation of Object Sightings by Month of Year, All Years Table A19. Evaluation of Object Sightings by Month of Year, 1947 . Table A20. Evaluation of Object Sightings by Month of Year, 1948 • Table A21. Evaluation of Object Sightings by Month of Year, 1949 Table A22. Evaluation of Object Sightings by Month of Year, 1950 Table A23. Evaluation of Object Sightings by Month of Year, 1951 Table A24. Evaluation of Object Sightings by Month of Year, 1952 Table A25. Evaluation of All Sightings by Sighting Reliability Groups, All Years Table A26. Evaluation of All Sightings by Sighting Reliability Groups, 1947 . . . . . Page 107 107 108 →..• 109 -... . 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 130 Table A27. Evaluation of All Sightings by Sighting Reliability Groups, 1948 ...• Table A28. Evaluation of All Sightings by Sighting Reliability Groups, 1949 Table A29. Evaluation of All Sightings by Sighting Reliability Groups, 1950 Table A30. Evaluation of All Sightings by Sighting Reliability Groups, 1951 Table A31. Evaluation of All Sightings by Sighting Reliability Groups, 1952 Table A32. Evaluation of Unit Sightings by Sighting Reliability Groups, All Years Table A33. Evaluation of Unit Sightings by Sighting Reliability Groups, 1947 . • • • 130 ......• .. • • 150 ...... ...... • 131 -........ 131 131 132 132 97

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INDEX OF TABLES (Continued) Table A34. Evaluation of Unit Sightings by Sighting Reliability Groups, 1948 . Table A35. Evaluation of Unit Sightings by Sighting Reliability Groups, 1949 . . . Table A36, Evaluation of Unit Sightings by Sighting Reliability Groups, 1950 . Table A37. Evaluation of Unit Sightings by Sighting Reliability Groups, 1951 . Table A38. Evaluation of Unit Sightings by Sighting Reliability Groups, 1952. Table A39. Evaluation of Object Sightings by Sighting Reliability Groups, All Years Table A40. Evaluation of Object Sightings by Sighting Reliability Groups, 1947 . . Table A41. Evaluation of Object Sightings by Sighting Reliability Groups, 1948 . Table A42. Evaluation of Object Sightings by Sighting Reliability Groups, 1949 . Table A43. Evaluation of Object Sightings by Sighting Reliability Groups, 1950 Table A44. Evaluation of Object Sightings by Sighting Reliability Groups, 1951 Table A45. Evaluation of Object Sightings by Sighting Reliability Groups, 1952 . Table A46. Evaluation of All Sightings for All Years by Sighting Reliability Groups, Military Observers Table A47. Evaluation of All Sightings for All Years by Sighting Reliability Groups, Civilian Observers Table A48. Evaluation of All Sightings for 1947 by Sighting Reliability Groups, Military Observers Table A49. Evaluation of All Sightings for 1947 by Sighting Reliability Groups, Civilian Observers Table A50. Evaluation of All Sightings for 1948 by Sighting Reliability Groups, Military Observers Table A51. Evaluation of All Sightings for 1948 by Sighting Reliability Groups, Civilian Observers Table A52. Evaluation of All Sightings for 1949 by Sighting Reliability Groups, Military Observers Table A53. Evaluation of All Sightings for 1949 by Sighting Reliability Groups, Civilian Observers Table A54. Evaluation of All Sightings for 1950 by Sighting Reliability Groups, Military Observers Table A55. Evaluation of All Sightings for 1950 by Sighting Reliability Groups, Civilian Observers Table A56. Evaluation of All Sightings for 1951 by Sighting Reliability Groups, Military Observers Table A57. Evaluation of All Sightings for 1951 by Sighting Reliability Groups, Civilian Observers Table A58. Evaluation of All Sightings for 1952 by Sighting Reliability Groups, Military Observers •.. .... •.... • Page 132 132 133 133 133 134 134 134 134 135 135 135 136 136 136 136 137 137 137 137 138 138 138 138 139 98

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INDEX OF TABLES (Continued) Table A59. Evaluation of All Sightings for 1952 by Sighting Reliability Groups, Civilian Observers Table A60. Reported Colors of Objects Sighted by Years, All Sightings →.. -.......... Table A61. Reported Colors of Objects Sighted by Years, Unit Sightings . . . - . ......... Table A62. Reported Colors of Objects Sighted by Years, Object Sightings - ........... Table A63. Evaluation of All Sightings for All Years by Colors Reported -........ Table A64. Evaluation of Unit Sightings for All Years by Colors Reported -.. ........ Table A65. Evaluation of Object Sightings for All Years by Golors Reported -... - ....... Table A66. Evaluabject All Sightings for All Years by Number of Objects per Sighting, 1... Table A67. Evaluation of All Sightings for All Years by Number of Objects per Sighting, Two Objects . Table A68. Evaluation of All Sightings for All Years by Number of Objects per Sighting, Three to Ten Objects Table A69. Evaluation of All Sightings for All Years by Number of Objects per Sighting, Eleven or More Objects Table A70. Evaluation of All Sightings for All Years by Number of Objects per Sighting, Number of Objects Not Stated Table A71. Evaluation of Unit Sightings for All Years by Number of Objects per Sighting, One Object Table A72. Evaluation of Unit Sightings for All Years by Number of Objects per Sighting, Two Objects. Table A73. Evaluation of Unit Sightings for All Years by Number of Objects per Sighting, Three to Ten Objects . Table A74, Evaluation of Unit Sightings for All Years by Number of Objects per Sighting, Eleven or More Objects . Table A75. Evaluation of Unit Sightings for All Years by Number of Objects per Sighting, Number of Objects Not Stated Table A76. Evaluation of Object Sightings for All Years by Number of Objects per Sighting, One Object Table A77. Evaluation of Object Sightings for All Years by Number of Objects per Sighting, Two Objects . Table A78. Evaluation of Object Sightings for All Years by Number of Objects per Sighting, Three to Ten Objects . Table A79. Evaluation of Object Sightings for All Years by Number of Objects per Sighting, Eleven or More Objects Table A80. Evaluation of Object Sightings for All Years by Number of Objects per Sighting, Number of Objects Not Stated Table A81. Evaluation of All Sightings by Duration of Sighting, All Years . -... Table A82. Evaluation of All Sightings by Duration of Sighting, 1947 Page 139 140 140 140 141 142 143 144 144 145 145 146 147 147 148 148 149 150 150 151 151 152 153 153 99

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INDEX OF TABLES (Continued Table A83. Evaluation of All Sightings by Duration of Sighting, 1948 Table A84. Evaluation of All Sightings by Duration of Sighting, 1949 Table A85. Evaluation of All Sightings by Duration of Sighting, 1950 Table A86. Evaluation of All Sightings by Duration of Sighting, 1951 Table A87. Evaluation of All Sightings by Duration of Sighting, 1952 Table A88. Evaluation of Unit Sightings by Duration of Sighting, All Years Table A89. Evaluation of Unit Sightings by Duration of Sighting, 1947 . . . Table A90. Evaluation of Unit Sightings by Duration of Sighting, 1948 1.. Table A91. Evaluation of Unit Sightings by Duration of Sighting, 1949 Table A92. Evaluation of Unit Sightings by Duration of Sighting, 1950 Table A93. Evaluation of Unit Sightings by Duration of Sighting, 1951 Table A94. Evaluation of Unit Sightings by Duration of Sighting, 1952 Table A95. Evaluation of Object Sightings by Duration of Sighting, All Years. Table A96. Evaluation of Object Sightings by Duration of Sighting, 1947 Table A97. Evaluation of Object Sightings by Duration of Sighting, 1948 Table A98. Evaluation of Object Sightings by Duration of Sighting, 1949 Table A99. Evaluation of Object Sightings by Duration of Sighting, 1950 Table A100. Evaluation of Object Sightings by Duration of Sightings, 1951 Table A101. Evaluation of Object Sightings by Duration of Sighting, 1952 Table A102. Evaluation of All Sightings for All Years by Duration of Sighting for Months of Year, Five Seconds or Less Table A103. Evaluation of All Sightings for All Years by Duration of Sighting for Months of Year, Six to Ten Seconds Table A 104. Evaluation of All Sightings for All Years by Duration of Sighting for Months of Year, Eleven to Thirty Seconds • Table A105. Evaluation of All Sightings for All Years by Duration of Sighting for Months of Year, Thirty One to Sixty Seconds 'able A106. Evaluation of All Sightings for All Years by Duration of Sighting for Month f Year, Sixty One Seconds to Five Minute Table A107. Evaluation of All Sightings for All Years by Duration of Sighting for Months of Year, Six to Thirty Minutes Table A108. Evaluation of All Sightings for All Years by Duration of Sighting for Months of Year, Over Thirty Minutes Table A109. Evaluation of All Sightings for All Years by Duration of Sighting for Months of Year, Duration Not Stated. •. • . ........• _.......... Page 154 154 155 155 156 157 157 158 158 159 159 160 161 161 162 162 163 163 164 165 166 167 168 169 170 →... 171 ... 172 100

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INDEX OF TABLES (Continued) able A110. Evaluation of Unit Sightings for All Years by Duration of Sighting for Month f Year, Five Seconds or Less . Table All. Evaluatio, Si Unit Sition for All Years by Duration of Sighting for Months Table All. Evaluatio, of Wei times Secall ears by Duration of Sighting for Month. Table A113, Evaluatio, of ry Sighting to 5 All care by Duration of Sighting for Months. Table Al14, Evaluatio, st yur Si head o All Mrs by Duration of Sighing for Months Table A115. Evaluatio, st Jo Siry Ma for All Years by Duration of Sighting for Months Table A116. Evaluation of Unit Sightings for All Years by Duration of Sighting for Months of Year, Over Thirty Minutes Table A117. Evaluation of Unit Sightings for All Years by Duration of Sighting for Months of Year, Duration Not Stated . Table A118. Evaluation of Object Sightings for All Years by Duration of Sighting for Months of Year, Five Seconds or Less Table A119. Evaluation of Object Sightings for All Years by Duration of Sighting for Months of Year, Six to Ten Seconds •. • Table A120. Evaluation of Object Sightings for All Years by Duration of Sighting for Months of Year, Eleven to Thirty Seconds • Table A121. Evaluation of Object Sightings for All Years by Duration of Sighting for Months of Year, Thirty One to Sixty Seconds Table A122. Evaluation of Object Sightings for All Years by Duration of Sighting for Months of Year, Sixty One Seconds to Five Minutes Table A123. Evaluation of Object Sightings for All Years by Duration of Sighting for Months of Year, Six to Thirty Minutes Table A 124. Evaluation of Object Sightings for All Years by Duration of Sighting for Months of Year, Over Thirty Minutes Table A125. Evaluation of Object Sightings for All Years by Duration of Sighting for Months of Year, Duration Not Stated. Table A126. Evaluation of All Sightings for All Years by Shape of Object, Elliptical .... Table A127. Evaluation of All Sightings for All Years by Shape of Object, Rocket and Aircraft Table A128. Evaluation of All Sightings for All Years by Shape of Object, Meteor or Comet Table A129. Evaluation of All Sightings for All Years by Shape of Object, Lenticular, Conical, or Teardrop . . . ... •• Table A130. Evaluation of All Sightings for All Years by Shape of Object, Flame Table A131. Evaluation of All Sightings for All Years by Shape of Object, Other Shapes .. .. Table A132. Evaluation of All Sightings for All Years by Shape of Object, Shape Not Stated 101 Page 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 189 190 190 191 191 192

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INDEX OF TABLES (Continued) Table A133. Evaluation of Unit Sightings for All Years by Shape of Object, Elliptical . • Table A134. Evaluation of Unit Sightings for All Years by Shape of Object, Rocket and Aircraft Table A135. Evaluation of Unit Sightings for All Years by Shape of Object, Meteor or Comet . Table A136. Evaluation of Unit Sightings for All Years by Shape of Object, Lenticular, Conical, or Teardrop . Table A137. Evaluation of Unit Sightings for All Years by Shape of Object, Flame . Table A138. Evaluation of Unit Sightings for All Years by Shape of Object, Other Shapes. Table A139. Evaluation of Unit Sightings for All Years by Shape of Object, Shape Not Stated Table A140. Evaluation of Object Sightings for All Years by Shape of Object, Elliptical . . . Table A141. Evaluation of Object Sightings for All Years by Shape of Object, Rocket and Aircraft Table A142. Evaluation of Object Sightings for All Years by Shape of Object, Meteor or Comet . . Table A143. Evaluation of Object Sightings for All Years by Shape of Object, Lenticular, Conical, or Teardrop Table A144. Evaluation of Object Sightings for All Years by Shape of Object, Flame Table A145. Evaluation of Object Sightings for All Years by Shape of Object, Other Shapes Table A146. Evaluation of Object Sightings for All Years by Shape of Object, Shape Not Stated Table A147, Evaluation of All Sightings for All Years by Reported Speeds of Objects, Stationary Table A148. Evaluation of All Sightings for All Years by Reported Speeds of Objects, Less Than One Hundred Miles per Hour . Table A149. Evaluation of All Sightings for All Years by Reported Speeds of Objects, One Hundred to Four Hundred Miles per Hour Table A 150. Evaluation of All Sightings for All Years by Reported Speeds of Objects, Over Four Hundred Miles per Hour Table A151. Evaluation of All Sightings for All Years by Reported Speeds of Objects, Meteor-Like Speeds . Table A152. Evaluation of All Sightings for All Years by Reported Speeds of Objects, Speed Not Stated Table A153. Evaluation of Unit Sightings for All Years by Reported Speeds of Objects, Stationary. Table A154, Evaluation e itS Peing to All Years by Reported Speeds of Objecta, Less Than Table A155, Evaluation a deit Sightinge HAll Years by Reported Speeds of Objects, One Hundred Table A156. Evaluation of Unit Sia ping for All Years by Reported Speeds of Objects, Over able A157. Evaluation of Unit Sightings for All Years by Reported Speeds of Objects leteor-Like Speeds . . . . . Table A158. Evaluation of Unit Sightings for All Years by Reported Speeds of Objects, Speed Not Stated .... • Page 193 193 194 194 195 195 196 197 197 198 198 199 199 200 201 201 202 202 203 203 204 204 205 205 206 206 102

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INDEX OF TABLES (Continued) Table A159. Evaluation of Object Sightings for All Years by Reported Speeds of Objects, Stationary Table A160. Evaluatine of Object it pes for A Years by Reported Speeds of Objecto, Less Table 161. Elevation of Dotect Side for l lou by Reported Speedo of Objects, One Table A162. Evaluation de objectS peting for All Years by Reported Speeds of Objects, Table A163, Evaluatio it Object Sightings for All Years by Reported Speeds of Objects, Table A164, Evaluation SObiet Sightings for All Years by Reported Speeds of Objects, Table A165. Evaluation of All Sightings for All Years by Light Brightness. • • Table A166. Evaluation of Unit Sightings for All Years by Light Brightness . . . . . Table A167. Evaluation of Object Sightings for All Years by Light Brightness ....... Table A168. Location of Observers During Sighting by Months for All Sightings, All Years . -.• Table A169. Location of Observers During Sighting by Months for All Sightings, 1947 Table A170. Location of Observers During Sighting by Months for All Sightings, 1948 Table A171. Location of Observers During Sighting by Months for All Sightings, 1949 Table A172. Location of Observers During Sighting by Months for All Sightings, 1950 Table A173. Location of Observer During Sighting by Months for All Sightings, 1951 . Table A174. Location of Observers During Sighting by Months for All Sightings, 1952 Table A175. Evaluation of All Sightings for All Years by Colors Reported for Duration of Sighting, White or Glowing White Objects... Table A176. Evaluation of All Sightings for All Years by Colors Reported for Duration of Sighting, Metallic Objects Table A177. Evaluation of All Sightings for All Years by Colors Reported for Duration of Sighting, Object Color Not Stated Table A178. Evaluation of All Sightings for All Years by Colors Reported for Duration of Sighting, Orange or Glowing Orange Objects . Table A17% Evelation , All Sir iowing All see by Colors Reported for Duration Cable A180. Evaluation of All Sightings for All Years by Colors Reported for Duratio f Sighting, Green or Glowing Green Object Table A181. Evalaging, All Sw or Cong on bolos Reported for Duration Table A182. Evaluations of it tire er Clears by Colors Reported for Duration Table A183. Evalating, Whits si5h Clowing Mie Outy Colors Reported for Duration 103 Page 207 207 208 208 209 209 210 211 212 213 214 215 216 217 218 219 220 220 221 221 222 222 223 223 224

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INDEX OF TABLES (Continued) Table A184. Evaluation of Unit Sightings for All Years by Colors Reported for Duration of Sighting, Metallic Objects -.. Table A185. Evaluation of Unit Sightings for All Years by Colors Reported for Duration of Sighting, Object Color Not Stated Cable A186. Evaluation of Unit Sightings for All Years by Colors Reported for Duration of Sighting, Orange or Glowing Orange Objects . Table A187. Evaluation of Unit Sightings for All Years by Colors Reported for Duration of Sighting, Red or Glowing Red Objects able A188. Evaluation of Unit Sightings for All Years by Colors Reported for Duratic E Sighting, Green or Glowing Green Object Table A189. Evaluation of Unit Sightings for All Years by Colors Reported for Duratio of Sighting, Yellow or Glowing Yellow Object: Table A190. Evaluation of Unit Sightings for All Years by Colors Reported for Duration of Sighting, Objects of Other Colors Table A191. Evaluation of Object Sightings for All Years by Colors Reported for Duration of Sighting, White or Glowing White Objects . Table A192. Evaluation of Object Sightings for All Years by Colors Reported for Duration of Sighting, Metallic Objects . • • Table A193. Evaluation of Object Sightings for All Years by Colors Reported for Duration of Sighting, Object Color Not Stated Table A194. Evaluation of Object Sightings for All Years by Colors Reported for Duration of Sighting, Orange or Glowing Orange Objects • Table A195. Evaluation of Object Sightings for All Years by Colors Reported for Duration of Sighting, Red or Glowing Red Objects • Table A196. Evaluation of Object Sightings for All Years by Colors Reported for Duration of Sighting, Green or Glowing Green Objects. Table A197. Evaluation of Object Sightings for All Years by Colors Reported for Duration of Sighting, Yellow or Glowing Yellow Objects Table A198. Evaluation of Object Sightings for All Years by Colors Reported for Duration of Sighting, Objects of Other Colors Table A199. Evaluation of All Sightings for All Years by Number of Objects per Sighting for Duration of Sighting, One Object Table A200. Evaluation of All Sightings for Ali Years by Number of Objects per Sighting for Duration of Sighting, Two Objects Table A201. Evaluation of All Sightings for All Years by Number of Objects per Sighting for Duration of Sighting, Three to Ten Objects Table A202. Evaluation of All Sightings for All Years by Number of Objects per Sighting for Duration of Sighting, Eleven or More Objects Table A203. Evaluation of All Sightings for All Years by Number of Objects per Sighting for Duration of Sighting, Number of Objects Not Stated Table A204. Evaluation of Unit Sightings for All Years by Number of Objects per Sighting for Duration of Sighting, One Object Table A205. Evaluation of Unit Sightings for All Years by Number of Objects per Sighting for Duration of Sighting, Two Objects .... Page 224 225 225 226 226 227 227 228 228 229 229 230 230 231 231 232 232 233 233 234 235 235 104

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INDEX OF TABLES (Continued) able A206. Evaluation of Unit Sightings for All Years by Number of Objects per Sightin or Duration of Sighting, Three to Ten Object able A207. Evaluatiat of on inting steve More by Number of Objects per Sighting Table A208. Evaluation of unit it, Nor All re ey Number of Objects per Sighting Table A209. Evaluation of Obsct Sighting Obel Years by Number of Objects per Sighting. Table A210. Evaluat of obsce in so oll years by Number of Objects per Sighting Table A211. Evaluation of Object Sightings for All Years by Number of Objects per Sighting for Duration of Sighting, Three to Ten Objects • Table A212. Evaluation of Object Sightings for All Years by Number of Objects per Sighting for Duration of Sighting, Eleven or More Objects • Table A213. Evaluation of Object Sightings for All Years by Number of Objects per Sighting for Duration of Sighting, Number of Objects Not Stated Table A214, Evaluation of All Sightings for All Years by Geographic Location Table A215. Evaluation of Unit Sightings for All Years by Geographic Location . Table A216. Evaluation of Object Sightings for All Years by Geographic Location Table A217. Evaluation of All Sightings for All Years by North American Location. Table A218. Evaluation of Unit Sightings for All Years by North American Location Table A219. Evaluation of Object Sightings for All Years by North American Location Table A220. Evaluation of All Sightings for All Years by United States Regional Location Table A221. Evaluation of Unit Sightings for All Years by United States Regional Location Table A222. Evaluation of Object Sightings for All Years by United States Regional Location Table A223. Evaluation of All Sightings in the Strategic Areas of the Central East Region Table A224. Evaluation of All Sightings in the Strategic Areas of the Central Midwest Region Table A225. Evaluation of All Sightings in the Strategic Areas of the Central Farwest Region Table A226. Evaluation of All Sightings in the Strategic Areas of the South Midwest Region . Table A227. Evaluation of All Sightings in the Strategic Areas of the South West Region Table A228. Evaluation of All Sightings in the Strategic Areas of the South Farwest Region Table A229. Evaluation of Unit Sightings in the Strategic Areas of the Central East Region . Table A230. Evaluation of Unit Sightings in the Strategic Areas of the Central Midwest Region Table A231. Evaluation of Unit Sightings in the Strategic Areas of the Central Farwest Region . Table A232. Evaluation of Unit Sightings in the Strategic Areas of the South Midwest Region 105 . : -.•• Page 236 236 237 238 238 239 239 240 241 241 242 243 243 244 245 246 247 248 248 248 249 249 249 250 250 250 251

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INDEX OF TABLES (Continued) Table A233. Evaluation of Unit Sightings in the Strategic Areas of the South West Region • • Table A234. Evaluation of Unit Sightings in the Strategic Areas of the South Farwest Region -...•... Table A235. Evaluation of Object Sightings in the Strategic Areas of the Central East Region . . . . . . . Table A236. Evaluation of Object Sightings in the Strategic Areas of the Central Midwest Region . . . . . . Table A237. Evaluation of Object Sightings in the Strategic Areas of the Central Farwest Region . . . . . . Table A238. Evaluation of Object Sightings in the Strategic Areas of the South Midwest Region . •• • Table A239. Evaluation of Object Sightings in the Strategic Areas of the South West Region 1... Table A240. Evaluation of Object Sightings in the Strategic Areas of the South Farwest Region . -••• Page 251 251 252 252 252 253 253 253 106

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Evaluation 0-Ballooa 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic info. 7-Psychological 8-Unicnom 9 Other Total TABLE AL EXALVATION OF ALL SIGHTINGS YEARS ALL YEARS 1947 1948 1949 Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total Certain Doubtful Total Certain Dubihul| Total Certaia Doubtil Total Certain Doubtil | Tote 210 1 180: 450 8.4 54.14.00 0. 2 60 00 60.12 20 37 83 95 18: 16 5 21 41 12 53 416 811. 354 34/ 14.9 10.6. 235 288 642 24 11.1 4.0|20.1 32. 56 1.0 0.8 1.8 0.6 0.9 52 2 2 8 49 274 48 342 36 39 15 L25. 19.0 365_24132 206 15233.5 52 3 2 4 11 12 34 16 21 28 21102 31 26 57 78 11144 2 1.7 0.0 11 10 29 39 0 0 00 00. 00 19 10 29 0.3 0 000 00 00 1011.5 25 5 11 02 13 12 13 25 0.4 0.4 298 0 298 9.3 2.8 0. U 0 00 00. 00 00. 00. 00. 000100 00 0.0. 9.3 36 10 48 14 0 14 22.0 00120 0119 93 0:0 93 36] 0 36 41100 g 12 0.3 1.5 3 2. 5 26 1.2, 4'3 0/ 05.000 3 3 01: 00102 689 0.689 215 0.0 2'5 28 0 =б 25.9 0.0 23.9 0 112 35147 3.5 4.6 17. 0 1: 14.5 0.0.14.5 4 27./3.2 000/30 56 0 56 14.2 04 16? 8 12 10 39 5511 0 11 28 00 2.5 2300 901 3201 119 28./100105 12117 598/10.2100124 81 1505645395100: 231: 64/395 585 445.100. Evaluation 0-Bailoon 1-Astronomical 2-Aircraft 3-Light Phenom. 4 Birds 5-Clouds, Dust, etc. 6-Insuffic. Info. 7-Psychological 8-Unknown 9 Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust etc. 6-Insuffic. Info. 7-Psychological 8-Unknown 90ther Total Evaluation o- Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. j4-Birds 5-Clouds, Dust, etc. 6 Insuffic. lafo. (7-Psychological 8- Unirown 9. 0ther Total Number 1950 Per Cent 1951 Number Per Cent 1952 Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain Doubitul Total Certain Doubthul Total Certain Doubtul | Total 33 L'O 2.3 13.1 10 14 6.2 12.5 81 181 144. 33/ 71 16.4 4'9 39 25 15 74 10.8 16.0 9.3 82. 24.2 25 11 42 156. 10.6 26.2. 240. 120 380 12.9 4.0 18.9 54 12.7 4.9176 16 24 10.0 5.0.15.0|250 232 482 12.4 115 23.9 0.0 0.0 0.0 313 0.7 2.0| 26 17 43 0.0 01|0.2 13 5 1.3 08 2/ 0.0 0.0 0.0 0.0 18 0.6 0.2 0.8. 00 0.0 0 0.0 12 0.6 0. b 1.2 49 4 0. 49 4 16.0 0.0 0.0 116.0 0. 1.3 14 0 14 8.1 00 13 25 0.0|8.1 166 8.2 0.052 0.0 0.1 0.1 26 13 0.3 14' 23.2 1.3 2 1.4 33 1.6 0.0 23.2 52 52 325 0.0 32.5 455 0 455 22.6 00 22.4 2.3 2.3 4.4 0 5.0 0.0| 5.0 65 20 85 32 1.0 4.2 252 54 (305 82.3 171/00. 128 32 160/800 200100. 1460 5582018172.427.6100 TABLE A2 EVALUATION OF UNIT SIGHTINGS BY YEARS ALL YEARS Per Cent Number 1947 1948 Per Cent Number Per Cent 19=9 Number Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 228 15/379 2.9 5.9 14.8 3х3 256639 15.0 10.0 25.0 2?2 235 521 11.4 9.2 20.4 32 2/1 53 23 1.3 0.8 2.1 13 10 0.5 0.4 7 0.1 0.3 0.9 10 0.4 26/ 36 497 92 26/ 10.21 0.0 10.2 9,45 1.4 1 0.4 0497 19.5 1.8 0.0 19.5 28,20 3.6 1.1 4.1 1 19 2 2 0 12 3 24 166 1.2 10 24 9.2 6.5157. 47 13 60 8:21 7.2 0.0 14 3 14 8.2 21 55 183 17.6.35.9 2 0 4. 19.6 2.1 22.5 2.1 2.1. 4.2 28 15 4 19 4.8 2.1. 3 5 13 2612.4 2 0.0 2 2.0 3 5 3.3 0.0 0.0:0.0 132.0. 3.3 0 0 0 0.0 2.0. 0.0 0.0 0.0 0.0 0 12 12.4 0.0 12:4 11 111: 0.0 2. 5 3.1 2.1 5.2 01 00 01 0 24 - 24!1 00/247 16 0 16 10.5 0.0 10.5 0 16 16.5 0.0 16.5 1 л 2. 6 4. 6. 1.2 34 18 2 33 3 33 6 80 14 14.4. 33.8 48.2 12 30 1.6 51121 0 80 00. 00 0.8 2.4 12 6.0 00 33 14.0 0.2 00 140 13 00.13 33 14.0. 00 14.0 25 00 25 1831/717 2554 71.9 28.1 100 185_12. 91/816 12.4100 49 54/153/64.7 35.3 100 140: 96236/5/4/40.6100. Certain Doubtful 22 5 42 18 30 0 26 42 5 19.50 1951 1952 Per Cent Number Per went Per Cent Per Cent Certain T Doubtfuf| Total Certain Doubtful | Total Certain Doubtful! Total Numbe Number Certain Doubtful Total Cerlain Doubtfull Tolal Certain Doubtful Total Certain Doubtful | Total 27 10.5 2.4.12.9 3 12 6.6 2.2 14 8.8 165130 295 94 7.5 11/ 60 20.1 8.6 28.2 21 35 15.3|10.2 4/3 11.7 25.5 239109 1348 13.9 63 20.2 41 5.314.6 24 5.8 175 211198 409 12.3 115. 23.4 0.0 0.0 0.0 8 / 3 1.5 0.7 2.2 17 43 15 1.0 2.5 0.0 0.0 0.0 26 0 0.0 0000 26 112.4. 0.0 12.4 0 0 14 0.0 0.701 4 514 0.5 0.2. 3 0.2 0.4 0.8 0.0 0.0 00 7. 10 0.6 0 14 10.2 0.0.10.2 159 0159. 9.2 0.0 9.2 2 1.0 0.0. 1.0 / 2 0.7 0.1; 1.4 26. 132 15 0.3 18 42 201 0.0:20.1 38 2.9|2,4|53 0 _ 38. 21.7 0.0 21.1 844 2. 344 20.0 0.0 20.2 0 8 5.8 0.0 15.8 52 16 68 30. 0.9. 3.9 170 39|209 814. 18.6100. 1109128 137 19.6 20.4 /:D. 1234 488 1 122/11.1. 28.31100. 107

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Evaluation 0-Balicon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- insuffic. Info. 7-Psychologi cal 8-Umktnowm 9Othes 12 3 240 35 1434 85 Total 115851 TABLE A5 EVALUATION OF OBJECT SIGHTINES BY YEARS ALL YEARS Number Certain Doubtful Total Certain Doubtful Number 1941 194,8 1942 Per Cent Per Cent Number Per Cent Number Per Cent Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certzin Doubtfull Total Certain Doubtful T Total 207/32 331 9.4 6.0 154 12.5 21.8 7 8.9 0.0 8.9 8.4 2 13 59 11. 1.0 274 205 419 265. 209 474 30 18 12.0 9.3 9.5 2/5 48 14 0.8 2.2 0,5 8 2 2 12 10 22 2.0154 8 16 10.1 10. / 20.2 25 23 48 11.5 16.1 33,6 2 4. 2.5 2.5 5.0 15 19 10.5 2.8 12,3 29 18. 55 84.15.4 29.5 45.1 12 30 2.2 44 164 2.5 0.0 2.5 3 5 1.4 2113.5 0.0 0.0 00 10 22 1,5 1.0 0 0.0 0.0 0.4 0.0 0.0 1.4 2.1 25 10 0.1 0.3 0 0.0 0.0 0 0.0 00 0.0 240 10.9 0.0. 10.9 1/5.2 0.015.2 17 11. 1 0.0 11.9 2 44. 0.4. 12 12 5 17 2 0 25 3 1./ 0,5 16 0.0 0.0 0.0 25 13.4 0.0.13.4 1.6 00 2.0 0 434 19.1 .19.1 22 2 0 3.8 25. 4.3 22 0.0 21.8 0.0.0.1 1.6 24 109 39 5.0 1/ 21.8 13.9 0.0 13.9 15 4 15 0.7 10.5 0.0 10.5 00 22 118 0.0118 2.8 22 4.9 2.1 4 321 0.013.2 614. 2199/22.127.9.100. 1a7 12/ 79/84 8 15.2.100 7 93. 50 143/65.035.0100 1/67018662.4316 100 Evaluation 0-Balloon 1-Astronomical 2- Aircraft 3-Light Ptonom. 4 Birds 5-Clouds, Dust, etc. 6-Insaffic. Info. 7-Psychological &-Unknown 9 Other Tolal 1950 1951 1952 Number Per Cent Number Per Cent Number Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubil Total Certain Doubtiul Total Certain Doubtil Total Certain Doubtful Total Certain Doubtful; Toll 21 25 22 0 4. 25. 12.4 2.4.14.8 8 3 // 6.6 %1 16 118113 261 99 25.119 14 39 14.8 8.3. 23.1 31 13.0 5.3 14 2.5 30 13.2 11. 6 24.8 17L 91 242 11.4 61 17.5 18.3 15 6 21 12.4 50 17.4 193176 369 12.9 11.7 24.4 0 0 0.0 0.0 0.0 / 2 0 .0. 0.8 0.8 1.6 25 14, 39 11 0.9 2.k 0,0 0.0 0.0 0.8 0.8 8 5 13 05 0.3 0.8 0 0 00 0.01 0.0 0 0.0 0.0 0.0 3 1. 10. 0.2 05 0.7 24 2 39 0.0 0 24 14.2 12 0.0. 14.2 14 0.0 0, 14 11.6 0.0 11.6 / 2 0.8 148 0 148 9.9 2 / 0 39 23.0 1.2 0.8 1.6 9.9 0.0 25 6 3/ 0.0 230 33 1.7 0.4. 2.1 0 33 27.3 0.0 213 303 0 303.20.2 0.0 20.2 3,5 18 5.3 0 7 58 0.0 5.8 5/ 14. 65| 3.9 0.9 4.3 139 30.169 82.311.1.100. 95| 26 121785 215100. 1075426 1501 71.6 28.4 100. 108

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Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenoma. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Info. 7-Psychological 8-Unknovn s-Other Totad Evatuation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuftic. Info. 7-Psychological 8-Unknown 9-Other Total TABLE AM EVALVATION OF ALL SIGHTIAGS.. BY MONTH DE YEAR, ALL YEARS JANUARY FEBRUARY MARCH APRIL Number Per Cent Number Per Cent Per Cent Pes Cent Certain | Doubtful! Total Number Number Certain Doubtful Total 3 3 6 Certain Doubtful Total Certain Doubtful Total Certain Doubtlus Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2.2 2.24.49 9 97 0.0 9.716 3 10 3.5 1.5 5.0 29 46 21.3 33.8 55.1 3 75 9 4.4 2:26•6 0 0.0 0.00.00 17 9 0 4 20 9.6 2.412.0 7 16 33 183 172 355 21 20 411127 12.0 2411. 52. 9 6/ 26.04.5 305 5 14 92 54 15 1 23 0 0.0 00 0.00 7. 30 13.9 4.2 1. 23. 36 14.0 4.0 18.0 0. 0. 0.0 0.01 0.5 0.0 0.5 0 0.0 0.0 0.0 0 0 0.0 0.00.0. 0 5 30 00 3.0 4 5 2.1 | 0.5 2.5 2.00.0 0L 0 08 0.0 0.0 8 2 26 8 2 0 10 5.9 1.5 19.5, 6.b 0.05.9 0 13 . 0 0.0 0.0. 0.0 1 0.0 0.6 0.6 013140 0.0 14.01 0. 0. 1.5 0 00 00 0.0 22 0 22 133/0.0 13.3 26 26 130 0.0 13.0 0 0.0 0.0 0.0 2, 1.0 0.0 1.0 0.0 19.5 16 0 16 17.21 0.0 17.2 29 0 29 17.5 0.0 125 57 5 7 28.5 0.0 28.5 0.77.3 0 8 8.6 0.0 8.6 1 17 18 06 10.2108 2 0 2 1.0 0.0 1.0 83 53/136 61.0 39.0.100. 72 2193774 226108117 49 166 705 2951000171 31 200|89.5 18.51 109. MAY JUNE Number JUkK AUGUST Number Per Cent Per Cent Number Per Cent Number Per Cant Certain Doubtful Total Certain Doubtful Total Certain Doubtful) Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total Certain Doubttul Total 24 5 29 28 10 38 12.91 2.6 15.0 36 6 42|15.8 2.0 18.41 100 55 155/0.8 5.9 /6.71 39 44 8 3 7.5 8. 4 15.9 14.4 5.2. 19.6 29. 23. 52 12.7 22.81 116 55 171 12.5 5.9 18.4 25 15 40 12.9 231 24.8 53 70 1123 7.7 20.4 30 13 43 13.2 5.7 18.9 133 98 14.310.5 52 55 10.2 13.4 23.6 10710.0 10.6. 20.6 1.5 1.5 3.0 3 4 9, 4 1.3 1.7 4 18 1.5 4 1.9 14 1.3 1. 3 2.6 0.0 1. 0 1.0 4.1 0 0.0 0.0 0.C 7 0.4 0. 3 0.7 0. 0. 0. 0 2.0 22 0 0.1 0: 2 36 9 4 22 0 3L / 3 4.1. 0.0 0 0.8 0.0 0.4. 8.5 0.0 10.2 11.3 0.0 11.3 25 25 11. 0 11.0 88 88 9.5 0. 0 9.5. 45 45 8.6: 0.0 8.6 0.0 0.0 0.e 2.6 D.0 2.6 18 1.0 1.0 2.0 10 14 1. 9 0. 2 2.1 18.4 0.01 18.4 4.4 2. 1 6.7 471 8 47216 20.6 9 3.5 0.0 0.4 3.9 195 40 0 / 15 21.0 0.0 21.0 119 0 119 22.8 0. 0 22.8 4/ 4.3 0.1 4.4 7118 21 1. 3 3.4 155 39/194 79.9 201 100 182 46 228 79.8 20.2100. 2031 226|929 75.7 243100. 334 185 52144.5 35-5/00. Evasuation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc, 6- Insuffic. Info. 7-Psychological 8-Unknown Other Total SEPTEMBER ОстерЕк NOVEMBER DECEMBER Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain"| Doubtiul| Total Certain Doubtful Total Certain Doubtful Tolal Certain| Doubtfull Total Certain | Doubtful Total Certain | Daubtful Total Certain Doubtful Total Certain Doubiful Total 6 14 20|2.9 6.79.6 16 2/37 8.3 10.9 19.2 5 18 231 3 / 42 114.8 5.220.0 20.040 2/ 6/ 20.8 10.9 31.7 28 3.0 11. 0 14.0 9 7 16 5.4. 4.2, %.6 29 157|17.1 17.7 34.81 32 3/ 63 19.018.5 37.5 14 37 2 51 6.7 17.6. 24.3 17 28.5:7 8.914.6 /1 16 27 6.7 9.8 11.5 12. 14 26 7.11 8. 315.4 3 0.51 1.0 1.5 0.5 1.011.5 0.5 / 5 4 5 0.5 21 2.6 3 / 4 1.8 0.6 2.4 0. 6 0. 010.6 7 26 10 36 0 0 0 0.0 0. 0. 0.0 0. 0 0.0. 0.0 10. 0 0.5 0.5 000 8 8 0.0 4.9 4.9 0.0 0.010.0 20 3 0.0 0.5 20, 9:5 0.0 9-5 126.2. 0.06.21 0 1 0 49 0., 4.2 5.41 _ 0. 0, 5.4 3 1. 4 0.01.4 1 0.5 0.0 0.5 4. 54.26.71 4 2.4 0.0. 2.4 0.0 26.3 3.8 1.4. 36 18.7 0.018.7 32 11 5. 2 4 1.6 0.5 2.1 4 0 0 • 6 0.0 0.. 32.195 0.l 19.5 40 40 23 8 0.0 23.8 4 24 0 0 2.41 0 9 5.4 0.05.4 140) 70/210k6.7 33.3/100. 125 67 792|231 34.9100. 9212/164 56.1 43.9110016 32/ 16879.0 3.0 100. 109

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Evaluation D-Balloon 1-Astronomical 2-Aircraft -Light Phenom 4 Binds S-Clouds, Dust, etc. 5- Insuffic. into. 7-Psychological 8- Uniano wa 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. +- Birds 5-Clouds, Dust, etc. 6-Insuffic. info. 7-Psychological 9-0ther Total TABLE A5 EVALVATION OF ALL SIGHTINGS BY MONTH DE YEAR , JANUARY FEBRUARY MARCH 1947 APRIL Certain Doubtil Total Certain achit Tola Certail Doil Total Catan anna Total Certain Dotil Tolar Cotan contal Tral Certain Dout Total Certain at Total DARA MAY Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain 0 3 4 12 0 Per Cent JuLY AUGUST Musher Per Cent Number Per Cent Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtlul Total 7,7 0.0 77 6 6 271 7.7 5 1102 00109 0 0,0 0.0 0.0 3 5514.6 / 7 375 63438 2 0 15.4 20:15.0 0,0 3.6 0.0. 00 00 00 1.8 3,6 0,0 1.8 0 0.0 0 00 00 1.0 0.0 0,0 20 00 al 010. 0 3 23.1 7.Z 4. 308 0,0 01. 0.0 00 0.0 0.0 00 2311 0 2145 0,0 14,5 0 0 0 2 12,5 00 00 00.27 2 00. 3,6 3.6 00 30.8 0 12 215 0,0 218 2 e 2 0.0175 el 0.0 72 12 16 0 16 29.1 0.0 291 7 163.1 0 0.0 00 43.2 0.0 0,0 1113|92.3 7.7 100. 48. 7 55 873 12.7400. 15 / 16 937| 6.3.100. Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds S-Ctouds, Dust, etc. G- Insuffic. Into. -Psychological B-Urknown 9-Other Tolal SEPTEMBER OCTOBER NOrEMBER Number Per Ceat Number Per Cent Number Per Cent Certain Doubthil Total Certain Dochtlul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total e. 0 0.0 0,0 0.0 0 0 0.0 0,0 0.0 0 0 0 0,0 0,0 0.0 0 1167 0.0.162 14 2 /6. 737105 84.2 Z 333 33.366.63 0.0 0.1 0 00 00. 0 0. 00 0.0. 0 0 0.0 0,0 0,0 00 0 ao 00 0.0 00 33.3 00 33.3 00 00 0,0 0,0 0 0 0 1.0 20 00 / 16.2 20.167 0 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0. 0 0,0 0.0 0 0,0 11617 00.167 1 5.3. 00. 53 0 0.0 0 00 00. 00 3 0. 500 00 50.0 2 2/05 0.0 10,5 0 0 a0 2 0.0 0.0 00 00 00 0 0 0 00 00 0.00 0 O 00 00 00 6 100.0| 0.0 /00. 17 2 19 895 10.5/00 | / 3/667/ 333/100. DECEMBER Number Per Cent Certain Doubthul Total Certain Doubtl Total 5 0 B 00 0.0 00 5 100 001000 0 0.0 00 0.0 0.0 0,0 0,D 0.0 0.0 0 0 0 0.0 000 e 0,0 0.0 0.0 00 0,0 00 0 00, 0,0 00 00 20. 0.0 15/1000 0.0/00. 110

━ PAGE 120 ━

Evaluation 0- Balloon 1-Asttonomical 2-Aircraft 3-Ligtt Phenom. 4-Birds 15-Clouds, Dust, eic. G- Insultic. Info. 7-Psychological &- Unknown 9-0thes Total Evaluation Ö- Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. -Binds 5-Clouds, Dust, etc. G Insuffic, into. [7-Psychological &-Unknown 9-Other Totad Evajuation 0- Baltoon 1-Astronomical 2-Airciaft 3-Light Phonom. 4 Birds 5-Clouds, Dust, etc. G-Insuffic. into. 7-Psychological &. Unknown 9-0 ther Total TABLE Ab -EVALVATION... OF ALL SIGHTINGS BY MONT OF YEAR , 1948 JANUARY FEBRUARY Certain | Doubtful | Total Certain Doubtul] Total Number Per Cent MARCH APRIL Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubtful | Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0,0 0.0 0,0 0 0 0,0 00 0.0 0 0 0,0 00 0,0 0 2 111 00 11.1 10 13 6251828/2 2 778 22,2100.0 2 222 0,0 22,2 0.0.445 445 0 0.0 0.0 0,0 0 0.0 0,0 0.0 0 eo 0,0 00 0.0 0,0 0.0 0,0 0.0 0.0 0,0 00. 00 0,0 0.0 0,0 0 0,0 0,0 0,0 0 10,0 0.0 0.0 0,0 0.0. 8.0 0 0 0.0 0,0 0.01 00 00 0.0 3 0 0 000 16.7 20.16,7 0,0 0.0. 0.0 5.6 00 5,6 0 00. a0 2 12,5 0.0.12.5 0,0 0.0 0.0 0.0 0.0 0,0 0,0 0.0 00 2. 0 2 122,21 0.0 22.2 0.0 0,0 0.0 00 5.6. 00, 516 8.0 0.0 0.0 0.0 0 11,1 0я.11./ 0 3. 00. 0.0.00 0 12 / 0.0 6,21 6.2 0. 0.0 0.0 0,0 4 4 0.0 44,5 6742 3 0 167. 00 16.7 0. 20. 0.0, 0.0 4.16. 25.0. 25.0:100. 2 2 9 278 27,2100.1 514. 9/555 445 100.|10 8 18 55.6 44.4 100. MAr Number JUNE JULY Per Cent Number Per Cent Number Per Cent Number Certain Doubtlull Total Certain Doubtfull Total Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtul Total Certain Doubtail Total 0 0 0 0.0 0,0 0 0,0 4 2 0,0 9,1/8.2 50,0 50,0 5 10.3 2 4.1 0 0 00 0.0 0.0 9.1 0.0 9.1 0 0.0 913 7,6.12.9 0 0.0. 18.2.182 10.3. 23.133.4 2 2 2 128 51 129 2 4 18.2 8.2. 364 0 0.0 0.0 9,!. 91.18.2 3 3 0,0.27.3272 3 3 0.0 50.0 0 2,6 00 26 0,0 0.i 0 0.0 9.1 4.1 50.0 0 0,0 0 0.0 0.0 0,0 00|76. 26 0 0,0 0.0 0.0 0.0 0.0 0 3 0,0 1273 0.0 0 0 22,3 0 0 0.0 0.0 0,0 0,0 00. 0.2 0 0,0 0.0 0.0 91 0,0 0.0 21 0.0 0.0 0 0 0 6 0.0 0.0 0.0 00 0.0 0,0 0,0 0,0 0,0 0.0 282 0.0, 78,2 0,0 0.0 0,0 _ 1 26 00 76 0 0 0 2 0.0 0.0 0.0 0 0.0 0,0 9,1 0,0. 9.1 00. 00. 0,0 0 00. 0,0. 0.0 2 00 18.219.2 6 5 546.45.4100. 3 3 500 50.0/100. 26 13 39 66-7 33.3100. 14 7 11 136.4163.6100. SEPTEMBER OCTOBER NoVEMBER Number Per Cent Number Per Cent Number DECEMBER. Per Cent Number Per Cant Certain Doubtiul Total Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Totai Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total 0 0 3 0,0 375 37,5 0.0 12.5 12,5 9 14 16.7 30,0 46.7 5 6 5,0 25.0 30.0 0 71. 0,0: 7.1 3 4 3.3 10.0 13,3 7 35,0 12.5 12,5 25.0 0 3,3 L 5.0.400 0l. 3.3 20,0 0, 0. 200 0 0 0 0 0.0 0,0 0,0 0 3.3 0.0 3.3. 0,0 00 00 0,0 0,0 2 3.3 3.3 D 0,0. 0,0 0l 0.0 0.0 0 0,0 0.0 1,0 0 0.0 0.0 0,0 0.0 0.0 0.0 6 0 6 200 0.0. 200 5,0 00 5,0 125. 0.0125 0 0. 0|00.00 0.0 00 0,0. 00 2 .Z 6.7 0,0 6.7 0 0 ° 0.0 0.0 0.0 0.0 2 0 0 0 3 9 11 71 32,1 392 0,0 3,6 3.1 00000 0,0 1 0.0 0,0 0,0 0.0 40 0 0.0 00| 0,0 0 00 2 6 10.7 0.0 10,7 0 0.0 00. 0,0 0 9 321 0.0 32,1 0. 012.5125 0 e 0 00 00 00 0 5,0 00 50 0 17.1 C.o. 2.1 8 1250/75.0100.119 | 13 30 56743,3100. 14. 6 20 700/30.0 100. 18 10 28 64.3 357.100. 111

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Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Info. i7-Psychological 8-Unknown sother Total Evaluation O-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuffic. Into. 7-Psychological 8-Unknown 9-Other Total Evaluation o-Balloon 1-Astrenomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuffic. Into. 7.-Psychotogical &-Unknown 9-Other Total TABLE AR EVALNATION OF REL SIGHTINGS BY MONTH OF YEAR, 1947 JANUARY Number Per Cent FEBRUARI MARCH APRIL Number Per Cent Number Per Cent Humber Per Cent Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubeful Total Certain Doubtful Total Certain Doubttur Tola 0,0 1712 4. 227 0.0|37.2 0 0 l0 00 00 0 / 0,0 2. 1 0 2 5 30 0000 0 0 36 0 0 4 0 2.1 10.2 508.610 7 10 16.2 38.9556 6.8 1.7. 8,5 0 1 5,6 0,0 5,6 0.0 .0,0 0,0 0 0 00. 10 0,0 0 10,0 0,0. 0,0 0 0 0,0 0,0 0.0. 0.0 0.0 9 8 4 19. 28 173, 36.6539 30 131 0.0 0,0 0,0 0.0 0.0 00: 0,0 0 5,6 0.0 0.0 00. 0,0 5,6 0 0,0 0.0 0.0 12 203 0.0 20.3 5.6 0,0 5,6 0000000 815.4 0.0 15.4 00 00 00 127 00. 77 00 00.00 11,6 00 11.6 0 0.0 0l 0,0 6 11.6 00 11.6 0000000 5 8,5 0.0 8.5 0. / 56 00 56 0 0 0000.00 0 3 63.8 6.4 0.0 0.0 0.0 5 10:6 1.0 14.9 0,0 _ 2.165.9 0 0,06.4 0.0.0.0 0.0 0.0 0,0 0,0 0,0 10.6 0,0 el 00 14,9 00 0,0 127/32 59 |45-8|54.2100. 7118/61 389100 33 19 52 6344366100. 46 1 47/ 979 2/100 Number MAr JUNE JuEr AUGUST Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Ceriain| Doubtful Tola 7 5 8,9 2.2 /ll .. 0,0 4,0 500 0.0, 5,0 0 0 0,0 0.0 0,0 11./311 5.10. 200 20.0 4he 6 0 0 E 00 1010 20,01 13.,0 6.7. 200 4.0 4:0 8.0 0.0 1.0 0.0 00. 00.00 2,0| 00 0,0 0 24,4 0,0 24.4 0 6 0 010 00. 0.0 13,3 00 13.3 S. 0 0 0 00 0 0,0 0.0 0.0 0.0 0,0 0.0 0.0- 0.0 8.0 0.0 8.0 / 4.0 00 4,0 $ 320 00 320 OOO0O9N 0.0. 35.0 35.0 35. 36 1. 9. 673 69,7 5 0,025.0 25,0 10 11 1•9.192 21.1 0.0 0.00.0 D. 0,0 0.0. 00 5,050 0 -NOWa 0.0. 00 15.0: 0.0 15,0 0.0 00 00 10,0 0,0 10.0 00000• 0,0 0.0 - NN 0,0 00 00 3,8_0.0 3.8 3.8 20, 3,8 1,9 0.0.1.9 00 0.0 0.0 0. 1. 40 00 4e 5.0. 0.0 5,0 0 00 00 0.0 36 _9 45/80,0 20,0 100. 19 6 25 760 240 100| 7.13 /20/350 65.0100|7 45 52 13.5/86.51100. SEPTEMBER Number OCTOBER NOVEMBER DECEMBEA Per Cent Cerlain Doubthull Total Certain Doubtful Number Per Cent Number Per Cent Number Per Cent Total Certain | Doubtful Total Certain] Doubtful Total Certain Doubtul, Total Certain Doubthl Total Certain Doulsful Total Certain Doubtful Total 0 33,3 0.0 33.3 0,0 0,0 0,0 0 2 0 0,0 0,0 0.0 3 0.0 8.88.8 4 0 145 00 14,8 4. 6 15,4 30.8 46.2 14. 21 20.6 41.2618 5 4 7 74.<85 25,9 0,0 0.0 0.0 22154 5 0.0147 14.7 6 22.2 0.0 222 0 0 0. 0 e.l 0,0 0 0 2_7.7 5 0.0 0.0 0.0 00 00. 1.0.0.0 0 0,0 0,0 0,0 a.0 0.0 0 0_ 0 0,0 0.0 0,0 0 00 0 0,0, 0.0 0.0 0 0 0.0R0 0.0 0 0l 00 0.0 0 0,0 00 00 0 0 00 0.0 0.0 0 0.0 ec 0,0 2 0.0 667 2 0 215,4 0.0 1514 0 1 29 00 29 0 e.l 0.01 00 00 0 0 0 00 00 00 l 0.0 01 00 l / 3.7 6.0, 3.2 0 0 00. 00. 0,0 0. 0 0.0 0.0 0,0 0 0.0 0.0 0 0 3 23 00 23.1 e 0.0 0 0 00 00 00 • 4 11.8 00 128. 6 0 6222 00.22.2 _0 00 00 0.0 3 3 11.1, 00.111 3. 1:0 3 1100.0 0,0100. 8 513 /615/38.5100.12|22 12 22 34 753642100|2215 5/27/51,5118.5 100. 112

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TABLE A8 EVALUATION OF ALL SIGHTINES BY MONTH DE YEAR, 1950 Evaluation 0-Balloon 1-Astronomical 2-Aircratt 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insutfic. info. 7-Psychologi cal 8-Unkcnown S-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G insuffic. Info. 7-Psychological 8- Unknawn 9-Other Total Evaluation 0-Bailoon 1-Astronomical 2-Aircraft 3-Light Phenom. 4 Birds 5-Clouds, Dust, etc. 6- Insuffic, Info, 7-Psychological 8 Unknown 9-Other JANUARY EEBRUARY Number Per Cent Per Cent Number MARCH APRIL Per Cent Number Per Cent Certain Doubtful Total Cerain | Doubfful Total Certain Doubtful | Total Certain Doubthul Total Certain Doubtful Total Certain | Doubtful Total Certain | Doubthill Total Certain Doubtful | Totad 0.01 8 0.0 0.0 13 42. 126368.4 3 3 0 3 9.1 0.0 9,11 13 3 116. 18.1 42 223 4 9.1 1 3.4 0.0 34 12.1| 21.2 8 11.1 0.0 11.1 10.5 0.0/10,5 618.2 0.0 18.2 413.8 - 4.013.8 12 4 16 16.4 0.0 0.0 0.0 0.0 0.0 0.0 5. 6.223 6 € 207 0.020.7 0 0 1 0.0 0.0 0.0 0.0.0 00 0.0 0.0 0.0 0. 0 0.D 0.0 0 0.0 00 20 0 0.0 0.0 0.0 0.0 0.0 0.0 00 5.3 1133.3 0.0 0.0 0 0.0 5.3 0.0 0.033.3 D.0 0. D. 0.0 0.0 0. D 2 2/10.5 0.010.5 15.3 0.01 5.3 3 3 0.d 0 3 90 0.1 9.1 9.1 0 13 15 0 00 0.0 0. д 0.0 0 13 N.1 0,0 0.0|/8.1 0.0 8 27.6 00 27.6 0 0.01 0.000 0 15 208 0.0 209 3 0.0 9.1 4 -0- 1 34 00. 34 931.0 0.0310 4 00 5.6 5.6 0 0.0 0.0 0.0 14 5 19/73.2/26.3100.29 4 33 879|12.1100. 16/ 11/72 /84.715.3000. 29 0| 29/100.0 0.0000. MAY _JUNE Number Per Cent Number Per Cent Number ..JuLy AUGUSI Total Total Per Cent Number Per Cent Certain Doubtful] Certain Doubtful 3 0 3 15.0 4 0.8 Certain! Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtul Total 15.0 2 2 I/4 0071.4 ., 0.8 4.2 0 8.8 0.0 8.0 10.010.0 20.0 0 0 0 0.0. 0.0 0 0 0.0 0.0 0.0 0.0 0.0 0 0.0. 0.0 0 0 0.0 0.0 0.0 0 0 00 0 0 0.0 0.0 0.0 1 2 0 0 0.6 0.0 0.0 1.0 0:0. 0.0 • 0.0 0.0 00 0 0.0 0.010.0 0.00.0 2 10.0 0 0.0 0.0 0.0 0.09 0 3 0D 0 0.0 00.00 8.400 0.0 0.8 0.0. 30.0 2 2786 0.018.6 3 0.015. 0 15.0 0 8.0 0.0 0.0 000000010 7 29.2 8.0 29.21 5 16.7 4.220.9 0.0 0.0 0.0 00 0.0. 0.00.0 10 0.0. 0.0 2.29.2 0.029.2 0.0 0.0 0.0 4 /6.7 0.0 V6. 7 0 0.0 00 0.0 4.0.24.028 0 16.0: 4.0 20.0 0.0 0.0 0.0 0.0 .. 0.d. 0.0 0.0 0.0 0.0 9a N 8.8 0.0 8.0 0.0 0.0 0.0 32.8 0.032.0 4.0 0.0 4.0 15 5 20 75.025.0100. 017/000 0.0408|23 1 24958. 4.2100. 18 7/25|72.028.0100. Total SEPTEMBER OCTOBER NOVEMBER DECEMBER Number Certain Doubtful Total (Certain eut Total Cerain Dutil Total Certain outl Total Number Per Cent- Number Per Cent Certain | Doubtful| "Total Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total 0.0 0.00.0 0 10.0 0.010.0 2 8.21 5 385 2 8.0 8.7 0.038.5 10.0. 10.0.20.0 0 _ 0.0 0.0 0.0 2 15.4 2 0.0.15.4 0.0 18.0 10.0 2 8.1 34.8 43.5 2 10 / 4 6 6.5.12.9 19.4 2,17 32.3.22.6.54.9 0 0 3.2 0.0 32 10.0 0.0 0.0 0.0. 0.0 0.0 0.0 0.0 0 0.0 0.0 0 0.0 0.0 0.0 0. 0.0 0.0 8.0 0.0| 0.0 0.0 0.0 0.0 0.0 8.0 0.0 3 w/o 323.1 0.023.1 0 0 0.0 0.0 0.0 0.0. 0.0 4.3 00 4.3 0 0 wo 0.0 as 0.0 • 0.0 0.00.0 0.0. 0.0 0.0 0 23.1 0023. 1 6 60.0 0.060.01 0.0 9 39.1. 0.039.1 0.0 0.0 0. 0 0.0. 0.00.0 1 43 0.0 4.3 0900000 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 3.2 _0.0.3.2 9.7 0D 9.7 6.5 0.0 6.5 3.2 0.0 3.2 13 0 13100.0 0.0100.] 81 2 10 800 28.0/08.13 10 23 565 43-5100. 20 11 31 164.5135.5 100. 113

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Evaluaton 'o Ballicon i Astonomical 2-Aurcraft 13- Light Phenom 1.Brds S-Clouds, Dust etc 6 Insuffic nio. 7-Psycholopical 8. Unknown some Total Evaluation 0-Belicon, 1-Astrocoaical 2-Aircratt 3-Light Pherom 4 Birds 5-Clouds, Dust, ec G Insultic. Into. 1-Psychological 8-Unknown 3 Other Total Evaluation Q-Balloon I-Astronomical 2• Aircraft 3-Light Phenom. 4- Birds 5-Clouds, Dust, ec 6 Insutfic, Into, 7-Psychological 8- Unknown 90ther Total TABLE 82 EVALUATION DE ALL SIGHTINGS BY MONTH OF YEAR, 1951 Flumber JANUARY Percent FEBRUARY MARCH Member APRIL Number Per Cent Number Pet Cent Per Cent Certain Doubttu? Total Certain Doubiful Total Certaia Doubtful Total Certain Doubthil Total Certain Doubtful Total Certain Doubtful Total Certain | Doubttul Total Certain Doubthel Total 2 74 7.4 14.8 6.1 0.0 6.7 0 0 0.0 0.0 0.0 0.0 0.0 3.7 14.8 2 00 7.4 18.5 3 0.0 0.0 0.0 7.4 00 OWN 8.0 0.0 13313.3 16.9 16.7 33.4 0.0 20.0200 0.0 167 16.7 0 0.01 0.0 0 0 0 0.0 0.0 0.0 33.3 0.033.3 0 5 0.0 5 18.5 0.0 0.0 0.0|185 0.0 0.0 0.0 10 1374 0.0371 0 0 NO 0 0.0 00 0.0 0.0 0.0 0.0 0.0 0.0. 0.0 0.0 00 0.0 0.0 0.0 00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 00 0.0 0.0 00 0.0 0.0 2 a0 0.066.1 0.0 0.0 0.0 0.0 246.1 0.046.2 3.7 0.0 3.2 213.3 0.0 13.3 19 8 27 70.429.6160 110 5 15 66.7 33.3100. 3 4 0.0 350.0 0.0 0.050.0 a0 0.0 0 0.0 • 0.0 0.0 0.0 0.0 0.0 0.0 2 6 /66.7|33.3100. 3 3 100.0 00|100. May Per Cent Humber JUNE Number Per Cent Number JuLy AUGUST Per Cent Per Cent Certain | Doubtful Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total Certain Doubtial Total Certainl Heater Total Certain Doubtial, Total 2 0 2140.0 0.040.0 0.01 0.0 0,0 2 50 3 0-0 0.0 111 222333 00 5.0 100 0.0. 120.0 0.0 0 0. 0.0 00 11100.01 0.0 0 0.0 0.0 0.0 0.0 20.0 00/00,0 111.1 5.0 0.6 0.0 0.0 0 0.0 0,0 3 10.0 5.0 5.0 0.0 0.01 0.0 0.0 0.0 15.0 0.000.0/20,0 0.0 0.0 0 0.0 0 0 0.0 0.0 0.0 0.0 00. 0.00.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8.0 120.0 0020.0 0.0 0.0. 00 4 580.020.0/100 - 0 0 0 0 0.0 0.0 00 0 0.0 0,0 0.0 0.0 0.0 0,0 3 15.0 0.015.0 00 00 0.0 0.0 0.0 0.0 0.4 0.0 0.0 33 0.0• 11•1 0.0 3 33.3 0.0 333 0 10 50.0 0.0 50.0 0 1100.0 0.0 0.0 IN.1 0011. 5.0 0.0 5.0 00/100. 6 3: 966.233.31100 18 2 20 90.010.0/100 SEPTEMBER ОстовЕх NOVEMBER DECEMBER Humber Per Cent Certain | Doubtful Total Certain Doubtil Total Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtul Total Certain | Doubtful Total Certain Doubthal I Total Certain Doubtiul Total Certain | Doubtful Total 4 5. 6 0.0 5k 16.7 5.41.22.3 2 9 2 0.0 7.1 0 0.0 5.9 5.9 0 9.1 0.0 9.1 10|32. 5 13 470 294764 5.k 0.0 0 0.0 5:6 3.6.35.7 8 18.2 9.127.3 0.0 0.0 2 0 19.3 7.121.4 2 0.01 11.8 0.011.8 4 0.0 0.0 36.4 0.0 0.0 36-4 00 0.0 0.0 0 0.0 0.0 0 2. 00 0 0 0.0 0.0 0.0 0.0 00 0.đ 0.0 0.0 00 0,0 0.0 0.0 0.0 0.0 a0 0.0 00 0.0 0.0 0.0 2/1.1 0 0 0.0 0.0 0.01.1 01 0.0 00 0.0 8.444 0.094.4 0 01 9 0.0 0.0 0.0 5.9 0.0 5.9 9.1 0 0.0 • 932.1 0.0 0D. 9.1 D.D 0.0 0032.1 0 0.0 0.0 0.0 0 00 00. 0.0 2 11. 0.011.1 13.6 00 3.6 0 0.0 0.0.0.0 0 111 11181944| 5.6100.1251 3/28 89.3 10. 71100. 6/17/67.235.3100. 10 0 0.0 00 1 11 91.919.1100. 114

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Evaluation 'o Balloon • 1-Astronomical 12-Arrcratt 13 Light Phenom 4- Birds 5-Clouds, Dust, etc. G Insuffic Into. 7-Psychological 2- Unknown $-Other Total TABLE AID EXRLUATION DE ALL SIGHINGS BY MONTH - DE - SEAR, 1952 JANUARY Number FEBRUARY Number Number MARCH Number APRIL Per Cent Certain DoubHul Total Certain Per Cent Per Cent Per Cent Doubtiul| Total Certain Doubtful| Total Certaia Doubtfui Total Certain (Doubtful Total Certain Doubttui Total Certain Doubtful Total Certain Doubtful | Total 0.0 6.7 .4 8 6.7 26.2 0.0 26.253.4 0.0. 56 3 4 11.1 148 3.7 4 Q 0.0 0.0 4 2 1.5.6 3.1 1 5222 56. 278 3:1 00 2 4 11.1 11.1. 222 11.1 7.4 0.0 3 18 15 3 6 2.9 291 58 18 17.5 0.0 115 0.0 0.0 0.0 00 0.0 00 0.0 00 0.0 0,0 0.0 13.3 00. 133 0 109-0 0.0 0.0 0.0 0.0 • 0.0 0.0 3.7 0.0 00 0.0 5.6 0.0 2 2 0.0 0.0 00 0.0 13.3 0.0 13.3 5 00 278 148 0D 14.8 13.3 0.0 133 0 2 11/ 00 11.1 10 3.1 333|320 38 z NOR-S 14.6 7.8 224 1.0 1.0 2.9 0D 10 3.9 0.0 0.0 0.0 9.7 0.0 1.0 0.0 36.9 1.9 0.0 19 4 15 733|26.2180. 15 31 18 83.3 16.9 100. 14| 13|27 518|48.2100. 91 | 12/103/88.4|11.61100. Evaluation O Balloon 1-Astronomical (2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuttic. Into. 7-Psychological & Unknown 9-0ther Total Evaluation 0-Ballcon 1-Astronomical 2-Aircraft 3-Light Phenom 4-Birds 5-Clouds, Dust, etc. 6- Insullic. into. T-Psychological (8 Unknown 9-0ther Total MAY Number Per Cent Number JUNE . JULY Per Cent Number Per Cent Number AUGUST Per Cent Certain (Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain 'Doubtfal Total Certain Doubiful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total 19 13.3 3.5 168 al 6 132 148 3.4 1821 88 5A 142 11.3 69 18.2 16 17. 3 18 14.2 1.8 16Д 24 11 4) 13.6 9.7 23.3 99 34133 12.1 12 39 15.01 10.61 12 38 4.3 17.0 25.6 148 6.8 21.6123 88211 15.7 11.3 210 0.6 36 43 45 41 26 43 2.7 0.0 0 0.0 0.6 12 16 1.5 5 20 69 88 9.1 10.3 19.4 10.8 66.17.4 11.4 10.8| 22.2 2.1 6 0.0 0.0 0 0.0 0.0 •5 1.3 0.0 1.5 0.0 2.8 0.0 0.0 5 0 - .1 -6 5 0.0 0.0 6 0 20 OD .5 0 6 0 20 10 7.l 5.3 0.0 7.1 0.0 00 0.1 20 17.7 0.0 0.0 17.9 33 0 0 0 0 0.0| 20 114 0.0 11.4 70 70 9.0 4 2.3. 2.3 9 6 33 18.8 0D 188163 15 1.2 0163.208 8.0 09 8.9 3.4 0.6 4.0 21 22 2.1 0.0 90 . 8 2-0 0.0 20.8 2.8 0 35 88 .3 .3 35 0.0 • 3 8.8 93 0 5 2.0 2.3 93 14 234 0.0 23.4 23 1.3 36 94 19 113 83.2 16.8100. | 140 36 176 79.6 20.4 100. 593 189 782 75 8 24.2100. 274|123 3971697 31.3100. SEPTEMBER OCTOBER NOVEMBER DECEMBER Number Per Cent Per Cent Certain Doubtfull Total Certain | Doubttull Total Certain Dotel Total Corin Doubtil Toll Number Per Cent Number Per Cent Certain Doubtul "Total Certain! Doubtfull Total Certain Doubtful Total Certain Doubtful Total 4 22 10 11 9 15 2.5 68 93 12 20 8.7 2 9 3 3 08 46 46 3/ 36 46. 13.6 54.19.2 8. 13 10 23 14.1 13/ 21.8 10.9 250 6.2. 22.2 28.4 1.2 13 3 1.8 54 K./ 145 4 00 43 43 3 2 3 13 6 3 0 30 3.4 164 7.5 11.9 19.4 9 20| 16.713.6 30.3 4.5 45 9.0 14 1.5.19.7.21.2 45 1.50.0 1 /2 12 2 • 6 0.0 7.4 42 0.6 25.9 8 3.Л 1.2 1.8 4 5 0.6 0.6 / 43 0.0 1.1 54 1.1 0 0.0 7.4 4 4.3 0.0 4.3 0000 - w00 3.0 1.5 --A 0.0 1.5 0.0 0.0 0.0 0.0 0.0 11.9 11.9 6.0 0.0 0.0 0.0 0.0 0.0 4.6 0.0 0.l 60 3 3 .0.0 4.6 0.0 1.5 0 0 00 0.0 0.0 0.0.259 0 00 00 0.0 1 1.5 12. 49 • 1415.2. 00 15.2 19 0 19 284 00 284 22 0 22 334 0.0 33.4 1 3|22 11 332 _2 30 00 30 3 0 3 46 00 4.6 9963162611399/108 504292/54445.6100. 38129 67 56743.3100. 41 25 66 62.139.9 1100. 115

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0- Balloon I1-Astronomical !2-Aurcratt 3 Light Phonom. 5-Clouds, Dust, etc. 6 Insuffic Info. T-Psychological &- Unknown Total Evaluation 0-Ballcon 1-Astronomical Z. Arrat 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic into. 7-Psychological & Unknown 90ther Total Evaluation D-Balloon I-Astronomical 2-Aircratt Light Phenoa + Birds iS-Clouds, Dust, etc 6 Insuffic. Into. 2.Psycholofical Bintrom Other Total TABLE AII EVALNATION OF UNIT S/GHT/NGS BY MONTH DE ЧЕАе , ALL YEARS JANUARY FEBRUARY MARCH APRIL Number Per Cent Number Per Cent Per Cent Per Cent Certain Doubttul Tolal Certain Doubtful) Total Certain Doubiful Total Certain Doubtful Total Number Certain Doubtful Total Certain Doubtful Total Number Certain Doubttil Total Certain Doubttul Total 3 2 5 39 3.9 256.3 7 10.9 0.0 10.9 2' 7.5 1.9 9.4 7 3 10 4.9 2.17.0 2/ 18 26.2 22.5 48.7 15 26 23.5 40.7 15 3 3 8111.3 5 112 12 4.00 11. 2|25.2 26 3 29 18.3 2./ 20.4 7.5 8.7 12 11. 2) 6.517.7 0.0 0.0 0.0 23 3/ 16.2 4.9 0.0 0 . 0.0 0 121. 0. 7 0.0 0.7 0•0 0.0 0 0 0.0 0.0 0.0 0 0.0 2.8 4 2.8 0.7 3,5 0.0 0.0 0.0 8 10.0 0. A 10.0 0 3 4 7 14.0 0.0 14.0 21 14. 8 0.0|/49 0 2.5 0.0 13.8 0.0 2.5 0.0 21 0 0.0 1. 2 1.4 0.0 13.8 17 17 15.9 0.0 15.9 42 0 1.4 42 29.6 0 18,9 0.0 29.6 6.2 1.3 7.5 2 0.9 0.0 1.4 15 0.91 13.1 $4.0 2 0 2 1.4 0. 0. 1.4 56/241 80 79.0 30.0100. 44| 20164 6881 3/.3/00. 11 36 107 664 33.6100.128 14 14290.1 9.9 100. MAr Number JUNE Number JUEr Number AUGUST Per Cent Per Cent Per Cent lumber Per Cent Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtlul Total Certain Doubtful Total Certain Doubtful Total Certain Doubiful Total Certain Doubtful | Total 18 5|23 12.0 3.3 15.3/29 6 35/4.4 3.0 17.492 48: 40 11.9 6.2181 39 42 81 87 4418.1 23 3/ 15.3 5.3 20.6 25 2/ 4612.4/0.4 228104 44 148 13.4 5.7191 47 64111 105 14.3248 18 15 3312.010.022.0 30 13 43 14.9 6.5 214106 8/187 13.710.5 24.2 48 3 5 2.0 1.3 38 186107 8.519,2 3.3 2. 0.5 0.5 1.0 14 2 3 1. 8 0.5 2.3 7 14 3,2 10.01 1.3 l 1.3 0 0.0 0.0 0.0 7 0.4 0.4 0.0| 1.3 8 1.6 16. 0.0 0.0 2 2 1.3. 0 0. 0) 0 0.0l 0.0 0.0 2 0.1 0.1 .2 22 0 00 0.2 0.2 22 114.7. 0.014.723 0 23 11.4 0.0 /11.4 0 8/10.5 0.0 105 42 0 42 9,4 0.01 0.01 9.4 0.0| 0.0 6 0 6 3.0 0.0 3.0 23 23 18.9 8 17 1.21.0. 2.2 12 11 2.21 D.2 2.4 15.30.0/15.3 38 0 38 18.9 0.0 144 0/46/18.8 0.0 18.8 87 7 2 4.7 1.3 6.0 8719.4 9 7 1 8 35 0.5 4.0 29 / 30 3.70.10 3.8 1L 5 16 2.14 0.0/44 11 3,5 11634150|773 227100159 42 201 791 209100 585 190 775 75.5 24.5 100. 1291 1158449|64.8|35.2 108. SEPTEMBER OCTeBER NOVEMBER DECEMBER Num bes Per Cent umber Per Cent Number Per Cent Number Per Cent Certain Doubtul| Total Certain| Doubtil Total Certain] Doubtful| Total Certain| Doubtha| Total ACertain | Doubtful Total Certain Doubtful Total Certain] Doubtful Total Certain Doubttul | Total 13 14 3.1 68 99 8 17 20 5.4 8.2/13.6 117 4210.0142 12 4.74.7 9.4 30 4 1 115.6 13. 3/ 144 5.721.3 22 19 46 184.129 31.3 5 12 6 25 19 43 209 150 35.8 29 23 52 228 18.140.9 6.8 16.1 229 10 15 25 6.9 10.217,0 8 19 9.2 6,215.9 8 12 20 6.3 9.415.4 / 3 0.5 10 15 1.5 4 0.7l 27. 3.4 3 3 4 25 0.8 3.3 0.8 0.00 0.8 10. 1.5 2 14 1.4 2.8 0 0,01 0.01 00 0.0 0.0 0 06 0.5 0.00 0.2 20 0 0.7 26 10.44 20 10.4 10 0 110 6.8 00l 6.8 2 0 0 0.0 2 00 1.2 0 0. 0.0 7 0.0 5.8 0.0 5.8 - 16 00 16 / 9 7.1 0.0 7.1 07 00 07 1 1 09 00 08L 2| 1.6 0.0 1.6 42 0.7.247 00 247 31 23 18 1 0.0 18.1 8 3 11 42 16 50 3 8 6.3. 0.0 6.3 129/63 192/672 328:100. 93|54 141633 367100. 79|41 120658134.2100. 8641 127 67.7 32.3.100. 116

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TABLE AIL EVALVATION OF UNIT SIGHTINGS BY MONTH OF YEAR, 1947 JANUARY FEBRUARY MARCEL Numbe Per Cent Number Per Cent Number APRIL Per Cent Number Per Cent Certain Doubtful Total Certain Doubtiül Total Certain Doubtful Total Certain Doubtful Total Certain Doubtiul Total Certain Doubtful Total Certain Doubtil Total Certain Doubtful | Total Evaluation 0-Balloon 1-Astronomica! 2-Aircraft (3-Light Phenom. +-Birds [5-Clouds, Dust, etc. iF Insuftic. Into. (7-Psychological & Unknown 9-Other Total Evaluation 0-Balloon 1-Astronorai cal 2-Aircratt 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic Into. 7-Psychological B-Unknown $ Other Total Evaluation o-Balloon 1-Astronomical 2-Aircrait 3-Light Phenom. 4- Birds 5-Clouds, Dust, etc G Insutfic. into. 7.Psycholopical 8-Unknow sOther Total Number MAY Per Cent Number JUNE JUEY AUGUST Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtlul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul | Total 7.7 0.0 0.! 1.7 7:7 7.7 6 2 13.0 0.0 13.0 4.3 6.5 /0.8 2 0 0 2 15.4 /5.4 un 2 4.3 0 2 0 0 0 0.0. 0.00.0 18.2 %. 1 27.3 0 0000 0 0.0 0.0 0.0 4.3 0.0 0.0 2.2 0,0 2.2 0.0 0.0 0.0 0 0 0,0 0.0 0.0 0 3 4 0.0 0 0.0 0. 0 23.1 0.0 0-0 0.0 0.0 13.0 0.0 13.0 7:7 23.) 6 0.0 7.7 0.0 4.3 30.8 0.0 30,8 9 19.6 4.3 0.0 19.6 7,7 7.7 15 0 NoN 0 0 00b0 100 0.0 0.0 0.0 0.0 9.0 0.0 NOs 0 6 0.0 0.0 0.0 0-0 18.2 0.0 0.0 0.0 18.2 0.0 54.3 0.0 0.0 0.0 545 0.0 15 32.6 0.032.6 0.0. 0.0 0.0 12 11/3 192.3 7.7 100. 39 7 46 848 15. 2100. 10 11.190.9| 9.1|100. SEPTEMBER OCTOBER Humber Per Cent Number Per Cent Certain | Doubthul Total Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total 0 0 0.0 0.0 001- 16.7 0,0 0 0.0 0.0 0,0 116.7 0.0 0.0 0.0| 0.0 0.0 0.0 0.0 2 00 10 6/.5 15.4 76.9 0.0 0.0 0.0 0 0 0.0 0.0 0,0 0 0 0.0. 0.0 0.0 0.0 0.0 0.0 1.0 0.0 11.7 0,0 16.7 0 0 0.0 0.0 0:0 0.0 0.0 0.0 0.0 1000 16.7 0.0 16.7 7.7 0.0 7.7 o w 50.0 0.0 50.01 0.0. 0.0,0.0 2 15.4 0.0. 15.4 0.0| 0.0 0.0 6 6 100.00.0|100.|10 2 1/3 84.615.41100 | 2 NOVEMBER DECEMBER Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0 0 0 0.0 0.0 0.0 0 0 0.0 0.0 2 33.3 33.3 G.6 0.00 0.0 0.0 0 5 0 0.0 0.0 100.0 100.0 0.0 0. 0 33.3 0.0 33.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0•0 0.0 0.0 0.0 0- 0 0 0 0 0 0.0 0.0 0.0 0.0 0.0 0-0 10.01 0. 0, 0.0 0.0 0.0 0.0 0.0 0.0, 0.8 0 0.0 0.0 0.0 00 00 0.0 0 0.0 0.0 0.0 0,0 T 3 46 7 33.3/00. 0 0 5 1100.00.0/100. 117

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Eval ustion lo-Balloon • 1-Astronomical 2-Aircraft i Light Phenom 4-Birds S- Clouds, Dust etc. & Insuffic Into. 7-Psychological &-Unknow sothe Evaluation 0-Balloon 1-Astronomical 3- Light Phenon. 4 Birds 5-Clouds, Dust, etc & Insuffic. Info. 7-Psychological &-Unknow 9-0ther Total Evaluation o-Balloon 1-Astronomical 2-Airciaft 3-Light Phenoma. 4-Birds 5-Clouds, Dust, dc. 6 Insuffic. Into. 7-Psychological * Unknora 9-Other Total TABLE 813 EVALVATION OF UNIT SIGHTINGS BY MONTH DE YEAR i 1948 JANUARY FEBRUARY Per Cent Number Per Cent MARCH APRIL Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Total Number Certain Doubtiui Total Certaia Doubtful Total Number Certain Doubtful Total /Certain Doubtful Total 0 0.0 0.0 0.0 0.0|0.0 0 0.0 0.0 0.0 2 2 20.0 0.0 20.0 3. 9 50.0 25.0 0.0 75.0 5 0 2 22.2 0.0 22.2 2 00| 20.0 20.0 0 0.0 0.00.0 0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 16.7 0.0.16.7 0 00 0.0 0.0: 0.0 0.0 0.01 0.0 0 cobo 60.0 40.0100.8 1.0 0.0 0.0 0.0 0.0 0.0 30.01 0. 0 30.0 0.0 al 0.0 0.0 0.0. 00 0.0 0.0 0.0 0.0 0.0 0.0 10.0 0.0. 10.0 20 8. 3. 8.3 .0 0 0 0 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0•0 0.0 0.0 22.2 0.0 10.0 0.010.0 00 20 0.0 22,2 0.0 0.0 6.0 0.e 8.0 0.0 0.0 00 00 I/./ 00/61 10.0 0.0 1.l 10.0 44.41444 ll 0.0 8 4 14 66-7/333100.1 3 2 5 / 60.0.40.0 /00. 5 4 9 55.6 44.4|100) 8 2 10/800 20.0 100. MAX JUNE JuKE AUGUST Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total Certain Doubttul, Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total 0 0.0 0.0 0.0 2 G. 00 66.7 4 / 5 14.8 3,7 2 0.0: 20.0 10.0 10.0 20.0 8 18.5 0 14.8 14.8 29.6 10.0 2 14.8 22.2 4 20.0 20.01 20.0 40.0 10.0 2 2 1,0 10.0 0.0 20.0 20.0 3.7 7.4 20.0 0.0 0 0.0 10.0 10.0 3. 3. 7 3.7 00 0.0 0.0 0.0 0.0 0.0 300 00 30.0 0 0.0 00 0 0.0 10.0 0,0 10.0 0.0 0.0 0.0 4 10 160.01 48.0200. 3 0.0 00 0 3 100.0| 5 0.0 0.0 0.0 18.5 0. 3.7 0.0 0.0 1100. 19 8 27 70.4 29.6 100. 0.0 16.5 3.7 0 0.0 0. P 0. 0.0 10.010.0 1 0 40.0. 60.0 101. JEPTEMBER OCTeBER NOVEMBER Number Certain Doubtful Total Certain Doubttul: Total Number Number DECEMBER Per Cent Per Cent Per Cent Number Per Cent Certain Doubtful Total Certain) Doubtful Total 21 2 0.0 33.3 33.3 3 3 Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain | Doubtful Total 6 15,0 15.0. 30,0 2 5.9 11.9 /7.7 2 0 2 8.3 0.0|8.3 0.0. 16.7 16.7 3 4 3.0 15.0 20.0 8 41.2 5.947. 2 8 10 8.3 33.3 41.6 16.7 0.0 16.7 0 0.0 5.0 0.0 5.0 5.0 23.5 0.0 235 0-0 4.34.2 0.0 1.e 0 0.0 0.0 0.0 0,0 0.0 0.01 5. 0.0 1 0.0 0.0 0.0 16.70 0.0 0.0 0.0 16.7 0 0 0. 0 0.0 00|16.7 0.1 16.7 4 2 0 0 0 20.0 0. 0 0.0 0.0. 0.01 0 2 10.0 0.0/10.0 010 0.0 0.0 0.01 0 0 0.0 0.0 9.0 0,0 21 41 6 33.3. 46•7100.13 5.9 0 0.6 0.0 0.0 0 0 00 00 0.0 15.9 00 5.9 1 20/65.0 35.0 100. 14] 3/7 82.917.6/00-175 3 0 / 0 000 3 12.5 0.0 0.012.5 0 0.0 л.0 0,0 • 23.0 0.0 25.0 2 8.3 0.0: 8.3 9 2 4 62-5|37.5100. 118

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Evaluation T0-Balloon : 1-Astronomical 2-Autcratt 3- Light Phenom. 4-Birds iS Clouds, Dust, etc. iG Insuffic into. 7-Psychological 8- Unknown S-Other Total Evalnarion 0-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4- Birds 5-Clouds, Dust, etc. 6- Insuftic. Info. 7-Psychological 8-Unknown 9-Other Total Evaluation 0-Balloon -A simnamicall 2-Aitcraft 3-Light Phenom. + Birds 5-Clouds, Dust, etc. 6 Insuffic. Info. 7-Psychological B. Unknown 9-0 ther Total TABLE EVALVATION OF UNIT SIGHTINGS...BX MONIH... OF YEAR, 1949 JANUARY FEARYARK MARCH APRIL Number Per Cent Per Cent Certain Doubtful! Total Certain Doubtful Total Certain Doubtf | Total Certain Docontil Total Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtlul Total Certain Doubtfull Total Certain Doubtful" Total 0 0,0 5.6 5.6 0 2 14.3 0.0. 14.3 0 0.0 0.0 0.0 / 5.3 0.0 5.3 8 11.1 33.3, 44.4 2 6 8 1/4.3 42.957.2 18 226 35.5 58.1 5 22.2 5. 627.81 0.01 0 7. 1 7.1 2 0.0 6.5 0.0 0.0 0.0 0.01 0.0 0-0 6.5 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 0.0 6.5 0.0 0.0 0.0 0.0 0.0 6.5 0.0 0.0 0.0 0.0 0. 0. 0.0 0.0 0.0 0.0 0.0 12.9 0.0 0.0/12.9 D.C 7.1 0 16.71 0.0 0 0.0 0.0 0.0 0. 0. 0.0 16. 7 0-9 7.1 4.0 7. 5.6 0.0 5 16.1 0. 0 16.1 5.6 0. 0 7.1 7.1 0 0.0. 0.00.0 00000000- 00 8 Ow 36.8 5.342.1 10.5 0.0 10.5 p. 0 0. 0 0.1 0.0 0.8 0.0 0.0 0.0 0. 0 26.3 0.026.3 0.0 10.0 0:! 15.8, 0.0 15.8 0.0 0.0 0.0 10 18 53.4 44.4.100. 8 0 14/571|42.9100.| 3/ 645|35.5|100. 118 19/94:7 5.31/00. MAr JUNE JuLY Number Per Cent Certain Doubtful Total Number Per Cent Number Per Cent Number AUGUST Per Cent Certain Doubttul Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Cerlain Doubtful Total Certain Doubtful Total 4 5 10.0 17.5 2.5 12.5 5.9 00 5.9 0 6.2 0.0 10.0 27.5 6.2 3 5.9 17.6 23.5 5.9 5 5 0.0 31.2: 3/.2 5 17.5 5.9 11.8 0.0 30 31 10.0 3 18.8 18.8 2 3 0 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 6.2 0.0 0.0 0.0 0 0.0 0.0 0 0.0 27.5 0.0 275 0 11.8 0.0 11.8 0 0.0 0.0 0.0 15.0 0.0 15.0 5.9 5.9 0.0 35.3 35. 3 0.0 0.0 5.9 0.0 0.0 5.9 2 3 - N 6.2 0.0 9.0 0.0 18.8 0.0 18.8 0 0 0. 0 0.0 2 1.0 12-3 00 12.5 6.2 0 2 - N 00 0 0 0 6.2 2.6 0 0.0 0.0|2.6 0,0 1.0 32 8 40 90.0|20.0|100. 13 4 17 76.5 23-5 100. 7 9 16|43.8 56.2108. 7 321 39 17.9 82. / 100. SEPTEMBER DETOBER NOVEMBER DECEMBER Mumme Per Cent Certain Doubttull Total Certain Doubtfull Total Number Per Cent Minnet Per Cent mannel Per Cent Certain Doubtful| Tolaï Certain] Doubttil Total Certain | Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total 33.3 0.0 333 0 0. 0.0 0.9 0.0 0.8 6.7 6.7 0 0.0 6.7 0.0 0.0 0.0 3 4 0.0 0.0 00 11.1 33-3 44.4 7 /1.1 26.7 / 46.773.4 6.7 2 11.1 0.0 6.7 6.7 13.3 13.3 26.7,40.0 0. 0/3.3 0 0 0 3 0 0 0 0 0 0.0 22•2 0.0 0.0 0.0 0.0 00 0 0.0 P. o 0.0. 0 0.0 0.01 0.0 0.0 0.00.0 0.0 0.0 0.0 66.7 0.01 66.7 0.0 0 2 0 0.0 0,0 0.0 0 0.0 0.0 0.0 0.0 00 0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 2 0.0 22.2 0,0 22.2 0 0.0 9.0 0.0 6.7 0.8 0.0 0. 0 6.7 0.0 0 00. 0.0 0 01 0.0 0.0. 0 00 00 0.0 0,0 0.0 0.00 0 0.0 0.0 0.0 1111. 0.01/1 3 • 3153 0.0133 3 : 3250 8: 232 1100.01 0.0/0. 1 0 5 3 20.0 0.0 20.0 0 0 0.0 0.0 0.0 4 9 55 6 44.4100. 6/9 15 40.0 60.0 100. 11 4 15733 26.7100. 119

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Evaluation lo Balloon J-Astronomical 2-Aurcratt 3- Light Phenom 4-Birds S- Clouds, Dust, etc f Insultic into. 7 Psychological S-Other Total Evaluation 0-Balloon (L-AStronomical 2- Aircraft 3-Lipht Phenom. 4-Birds S-Clouds, Dust etc. GInsullic. Info. T. Psychological ' 8-Unknown 9-Other Total Evaluation 0-Balloon i 1-Astronomical 2- Aircratt 3-1 phl Phenom. 4-Birds 5-Clouds, Dust, etc. EinsuMic. into, 1-Psychological 8-Unknowg 9 Other Total TABLE RIG EXALVATION OF UNIT SIGHTINGS BY MONTY OF YEAR, 1950 JANUARY FEBRUARY Pes Cent Number MARCH Mumber Per Cent Number Per Cent APRIL Number Per Cent Certam Doubltul, Total Certain Doubttul; Total Certain Doubiful | Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubthul Total Certain Doubttul Total 0 0 0.0 v.01 0.0 3 0 3 16.7 0.01167 6 13.5 2.7 16.2 5.3 0.0 5.3 3 50.0 18.8.68.8 4. 6 11./ 22.2 33.3 4 4 10.8 0.0 10.8 0 4 21.1 0.0 2/.1 0 12. 5 0.0 12.5 4 22.2 0.0 2202 4 // 18.1 10.8 29.7 4 21.1 0.0 12.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0100 0 0.0 0.0 0 0.0 0.0 0.0 0.0 1.0 0. l 0.0 9.01 00 0.0 0.010.0 0 0.0 0.0 0.0 16.2 0.0 21.6 0.0 0.0 0.0 21.6 15.8 0.0 0.0 0.0 0.0 0. 0.0 0.01 0.0 5.3 00 15.8 5.3 6.2 6.2 0.0 0.0 6.2 0.0 0.0 6.2 3 3. 1c 81.2| 18.81100. NN 14 0 11./1 0.0 4 10.8) 0.0:10.8 2 11.1 0.0 11.1 4 0.01 10.810.8 00 4 18|77.8 222100.|28 9 4 371 75.1 24.3/00. 31. L 0.0 -31.6 0,0 0,0 19100.0| 0.0|100. MAY JUNE Jukr Number Per Cent Number Per Cent Number Per Cent Number AUGUST Per Cent Certain Doubtful| Total Certain Doubtfull Total Certain Doubtful| Total Certain: Doubiful Total Certain Doubtfull Total Certain | Doubtful Totas Certain Doubthul Total Certain Doubtful Toral 0 1114.3 0.0|14.3 4 66.7 0.066.7 4.8 0 33.3 0.0 4.8 2 214.314.3 28.6 0.0 0.0: 0.0 0.0. 33.3 - a0 8. 7 0.0 8.7 4.3 0000006 0 0 26./30.4 0.0 0.0. 0.1 0. 0.00.0 0.0 0 0.0 0.0. 0.0 0 0.0 000 0.0 2 38.6 0.0 28.6 - 0.0. 0.0 1, 14.3 0.0 0.0.14.3 0.0114.3/14.3 0000 Noo 0 0.0 0.0 0.0 5 119. 0 4.8 23.8 11.4 4.3 21.7 0 0.0 00: 0.0 0 0 0.0 0 0.0 0.0 0 0 0.0 0.0, 00 0 0.0 0.0, 0.0 0.0 0.0, 0.0 0 0.0 0.l 0.0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 4 4 1.9.0 _0.8 0.0 0.0 0.0 0,0 0.0 19.0 0.0 000 0.0 0.0 8.7 0.0 0.0 0.0 8.7 0 2 33.3 0.0 0.0 33.3 4 19.0 0.0 0.0 19.0 26.1 0.0 0.0 0.0 4.3 0.0 26.) 0. 0 0.0| 0.0 0.0. 4.3 5 2 | 7171.4128.6. 100|6 0 6100. 0.0 100. 20 1 21 95.2 4.8|100. 16 7/2369.6 30.4.100. SEPTEMBER OCTOBER Number Per Cent Number Per Cent NOVEMBER DECEMBER Number Pes Cent Number Per Cent Certain | Doubtful Total Certain] Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubthul Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total 000 0.00.0 110.0 00 10.00 2 2 13.3 0.0 | 13.3 4 8.3 | 16. 7 25.0 5 3 385 9.0 38.5 2 10.010.0 20.0 0 0.0 0.0 0. 0. 3 / 2 37.5 12.5 50.0 2 15.4 00. 15.4 0.0, 10.0 11.0 • 0-0 0.0 0.0 0 00 0.0 0.0 0.0; 0.0 0.0 0.l • 0.0 9.0, 0.0 23.1 0.0 23.1 0 0 0 0.0 00 0.0 0•0: 0.0 0-0 0.0 0.0 0.0 0.0 00 0.0 3 23.1; 0.0 23.1 0. 6 60.0 0.0 60.0 40-0000 0.0: 0.0 0.0 0 0 00 00 0.0 - noradon 13.3 26: 40.0 4.2 0.0 0.0 4.2 0.0 0.0 0.0 0.0 0.0. 0,0 0-0 0.0 0 1-0 0.01 0 1.0 0.0 0.0 0.0 8. 0 6.7 0. 0 6.7 4.2 0.0 0:0 4.2 0.0 0:2 3.0 4.2 0,0 4.2 3 1/3 33.3 8.3 0,0 8.3 6. 7. 0. 0. 62 _ 0 4.2, 0.0. 4.2 1/3\100.00.0100. 1 81 2/0/80.0 200/100|11 4/15 73.3|26.7100. 17 7 24|70.2 29.2100. 120

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Evaluation a Balloon 1-Astronomical ! 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic tito. 7-Psychological 8- Unknown 9 Other Total Evaluation 0- Balloon I-Astronomical 2-Aircraft 3-Light Phenom. *-Birds 5-Clouds, Dust, etc. 6- Insuflic. Into. -Psychological 8-Unkrona $ Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft -3-Light Phenom. 4- Birds 5-Clouds, Dust, etc. 6 Insultic. Into. 1-Psychological 8 Unknown 9-0ther Total TABLE All EXALUATION DE UNIT SIGHTINGS BY MONTH DE YEAR 1951 JANUARY FEBRUARY Number MARCH APRIL Per Cent Per Cent Certain Doubttul Total Cerlain Doubtful Total Certain Doubts Total Certain Dotul Total Number Per Cent Number Per Cent Certain Doubtful| Tola? Certain Doubtful | Total Certain Doubtful Total Certain Doubtlut | Total 3 10.5 531/5.8 II./ 0.0 | 11,1 0 0 0.0 2 5.3 10.5 15.8 2 2 0.0 22.222.2 0 0,0 0.0 0 0 0,0 0.0 2 0.0 10,5 10.5 0.0 16. 1 16.7.33.4 0 33.3 33.3 0.0 16.7|16.7 0.0 0.0 0.0 troo 4o 00 0.0 0.0 0.0 0.0 0.0 0 5 0.0 24.3 0.0 26.3 0. c 0.0: 0.0 26.3 0.0 26.3 5.3 6. 0 23 0 N.00 4 0.0 0.0 00 0.0 0.0/0.0 0.0 0.0 0.0 000 0.0 0.C Q.0 0.0 0.0 0.0 0.0 0. 0 0000 0.0 0,0 0.0 0.0 0.01 10.0 1 0.0 0.0 3.0 0.0 11./ 3 0.0 22.21 0l o 0,0 0.0 0.0 50.0 0.0 0.01 50.0 0.0 0.0 0000000 0 0- 900n000 33 • 3 66.7 0,0 0.0 0.0 0.0 0,0 0.0 33,3 0,0 -l.0 0.0 0.0 0.0 0.C 0.0 € 6.7 0•0 0. 0 lo 0.0 0.0 0.0 14 5 19 173.7 4l.3 100. 5 9 444 55.610054 2 6 66.7|33.3/00.1 3 0 3 110.0 0.0|100. MAy Number JUNE JULY Per Cent Number Per Cent Number Per Cent Number AUGUST Per Cent Certain Doubtful Total Certain Doubtfull Tota: Certain Doubtful Total Certain Doubtful| Total 0 340.0 Doubtful! Total Certain Doubtful Total Certain Doubtful| Total 0.9 40.0 0.9 0.0 Certain Doubtful| Total Cerlain 6.0 0,0 0 0 0.0 0. 0 0.0 3•7 5,9 11.8 c.C 0.0 1.0 0.0 0.0 2 3 I./ 22.2 33.3 0. 0 0-0 0.0 / 20.0 20.0 0.0 0.0 0 0 0.0 0.0 0,0 0 0 100м2 100-0 C.C 20 0.0 0.0 0,0 0.0 8.0 0.0 0.0 0.0 3 5.9 0.0 5-9 5.9 20.v 22.0 00 0,0 0.0 0.0 0.0 00 0 G.v K0. v.v i,G 0.0 0.2 6.0 0.0 6.0 0,6 0 0-0 0.0 1.0 0.0 1.0. 0.8. 0,0 0.0 0.C 0.0 11. 1 20G1 20.0 0.01.0 0.0 33,3 0. 0. 33-3 0.0 0 3 0 7 11. 8 0-0 17.7 0.0 00 7. 6 0.0 17.6 0.0 0.0 0. 0 0,0 l 11.1 41.2 0.6 0 0,0 0.0 v.0 0.0 41.2 0. 0|11.1 5.9 0. 0| 5.9 4 5 80,0 20.0700. 100.0 9.0 100. 6 3 1 9 166.7| 33.3 100. 15 2 17/88.2| 11.81/00. SEPTEMBER NOVEMBER Number Per Cent Number Per Cent Number Per Cent DECEMBER Number Per Cent Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttu: Total [Certain Doubtful Total 0 2 5.9 0.0 11.8 5. 9 5.9 4.2 0.0 4.2 / 0.0 6.2 6.2 17.7 7 25.0. 4.2 24.2 8 4 / 250.01 25.0 75.0 0 5.9 0.0 5.9 / 2 4 1 91 0.0 9. / 3 18.2 0 0.0 0.0 10.0 0 0.0 0.0 0.0 2 0 6 16.7 0 2 9.1 27.3 8. 3 25.0 0.0 0.0 0 12.5 0.012.5 0.0 4 36.4 0.0 36.4 0 0.0 0.0 0.0 0 0.0 0.0 0,0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0.00.0 0.00.0 0 / 00 0.0 0.0 0.0 2 11 000 16 11. 8 0.5 11,8 0.0 e.l 0.0 6.2 0.0 6.2 0.0 0.0 10.0 0 9.1 0.0 9.L 0. 0. 0.0.0.0 0.0 0.0 0.0 47.1 0.047.1 -:/ 0.0 9.1 9 37.5 0.037.5 0 2 11. 8 0.011.8 0 1 4.2 0.0 4.2 • e 0 00 0.00.0 9.1l 0.0| 9.1 - 0 00 0.0,0.0. ° 01 0 00, 0.0 0.8 17 194.115.9 100. 2/ 3 24/875|12.5/100. 5 /668.8 31.2100. 10|1 11 90.9. 9.1100. 121

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Evaluation 10 Balloon : 1-Astronomical 2-Aurcraft 3- Light Phenom 4-Birds S- Clouds, Dust, etc. 6 Insuffic Into 7-Psycho logical 8. Unknown 90the Total Evaluation o-Balloon }-Astronomical 2-Aircraft 3-Light Phenom. 5-Clouds, Dust, etc. 6- InsuMic. info. 7-Psychological | 8 Unknown 9-0ther Total TABLE A17 EVALVATION OF UNIT SIGHTINGS BY MONTH DE YEAR, 1952 JANUARY FEBRUARX Per Cent Per Cent MARCH APRIL Certain (Doubtful Total Certain Doubtfuly Total Certain Dour Toil Certain Out | Total Number Per Cent Number Per Cent Certain | Doubtful! Total Certain Doubtful| Total Certaia Doubtful| Total Certain Doubtful Total 0 6.7 0.0| 6.7 15.6 0.0 5.6 1 412.5 4.2 167 3 6 3.3 3.3 6•6 00000000+ i 26.7 26.753.4 5.22.2 5.6 27.81 0.0 0.0 0. 0 11-1 22.2 0.0 3 / 3 0,0 e,0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 0.8 0.0 00 0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 2 13.3. 0.0|13.3 00 15.6. 0,0 5. L 0 0.0 0.0 13.3 0.0 0.0|13.3 0 5 27.8|0.0| 0.0|27.8 2 13.3 0. 0 13.3 0. 2 11.10.0 11:1 a000-00no 4.2 0.0 4.2 15 116.5 12.5 .3 20.8 0.8 16.5 2014•3 7.7 22.0 0. 0 0.00.0 4.2 0.0 4.2 0. 0 4.2 4.2 0+- I.1 0.0 1.) 3.3 1. / 4.4 0.0 10|11.0 0. 0. 0.0 4.2 0.014.2 0.0 0.0 0.0 .16.7 32 11.1 0.011.0 0.0 1.1 0. 0. 16.7 32 35.21 0. 0 35.2 7 4: 2. 25.0 29.2 2 2.2 | 0.0 2.2 4 15|73.336.7/100. 15 3/ 18 03.3|/6.7|100. 14 10|2458.3/41.710080 11 9/187.9 12•/1/00. MAK Per Cent TUNE JuLy Number AUGUST Per Cent Per Cent Number Per Cent Certain Doubtful| Total Certain | Doubitul Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtfül Total Certain Doubtful Total Certain Doubtful Total Certair n ( Doubtful Tola 11. 144 4 /5 112.5 4:517.0 2 16 15.9 2.3 18.2 12 24 13.6 13.6 27.21 21 24 26 6 27 13.0 3.7 16.7 17 10.6 12 36 14.9 7. 25.5 16./ 23.6 0.6 80 90 17 47 127 12.2 7.2 19.4 .36 39 75 1P. 3 11. 2 21.5 30 120 13.7 4.6 18•3 251 66 11.7 73/79 41 75 7.2 18.9 34 1I.7 9.7 3.4 0.0 0. 3.4 14.8 25.9 4/ 21.4 0,1 16 0 0.0 4 1.8 0.6 2.4 5 6 0.5 1-4 1.7 0.0 3 0.0 9.2 0. 0 0.0 000 0.0 0.0 4 0.0 2.3 0.0 2.3 0.0 0.l / 0.2 0.4 3 0.3 6.8 0.0 6.8 0.0 0.0 14 15.9 0.01 0. 0|15.4 7 8 80 119.1 18 4. 26 5 0 11.2 0.0 11. 2 0.2 18 0 32. 32 0.0 9.2 0.0 9.2 2.5 0.0 2.5 10-4 0.8 11.4 5 14 1.4 0.8 91 2•3 0. 3 2. 6 9 26 1.1 0.0 2.2 0.0 123 0/2318.8 0. 9 18.8 0.4 16.1 3.7 //21.7 0.2 1.9 67 9 0 67.19.2 0. 0. 19.2 413 2.6 /./ 3.7 69 19. 8878.4 216100.125 3616177 6 22.4100 494 162656|75.324.7100. 239110349485 31.5 100 Evaluation o-Balloon 1.Astronomical 2-Aitcraft 3-Light Phonom 4- Birds S-Clouds, Dust, ec Stesuffic. hio. 1-Psychological 8 Unkncen sOther Total SEPTEMBER OCTOBER Number Per Cent Number NOVEMBER DECEMBER Per Cent Number Per Cent Number Per Cent "Certain Doubtil Total Certain Doubtful " Total Certain Doubtful Total Certain Doubttull Total Certain' Doubtful Total Cestain] Doubttul Tolal Certain Doubtful Total Certain | Doubtful | Total 3.7 4 22 11 15 3.7 7.5 10.2 4.2 12.7 16•9 2 $ 10 14. 8 18.5 2 0.0 4. 2 4.2 9 31 15.0 6/21.1 3/40 6.1 21.1 27.2 3 0.7 1. 4. 2.1 10' 4 9/2 2 91914.1 1115 12.726.8 5 10 9. 3 9.318.4 118.7 | 14.6 33.1 5. 6 15.5 21.1 3 5.6 5. L 0.0 3 11.2 2.1 22.9 25.0 4 5.6 5.6 3.7 0.0 1.9 12 5.6 0 2.1 0.0 0 0 0.0 0.0 2.1 3 0714 20 1. 4 1.4 L.8 0.0 0.0 0.0 10. 0, 0.70.7 / 0.0 1.4 1.4 2 l.l 3.7 3.7 12 8.2| 0.0 8.2 4 5.6 0 5.L 0.0 1 02 0.0 0.7 0 0.0 0.0 0.0 00 4 7.4 0.0 7.4 1. 1. 2 0.0 0 owo 0.0 0.0 10.0 0.0 6.2 33 33 22.4 0.0, 22.4 2. 8 41 14 5.5 /1. 2 0. 11 15.5, 0.0 /5.5 16 0 1129.6. 0.0 29.6 1 3 28 14 4.2 2. 0 2 3.7 0.0 3.7 и то 6.2 0.01 0.0 0. 0 0 11 22.9 0.0 22. 0 3 6.2 0.0 6- 8958147/60.5395 100(3513671 493507100. 35119|5416481 35.2,190. 28120 18158.3.41.7:100. 122

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0- Balloon I-Astronomical 2-Aircrait 3-Light Phenom. 4-Birds S-Clouds, Oust, etc. 6 Insuttic into. 1-Prychobrical 8-Untcaom s-other Total TABLE AI8 EVALUATON DF OBJECT SIGHTINGS BY MONTH DE YEAR, ALL YEARS JANVARY EEARUARY MARCH ARRIL Certuin pouatil| Total (Cerian eoronul, Total (Cerail DoatirN Total (Cetia eocatl Total Cotan Dudtal Total (Ceriäin Ootntl/ Tol Cersin Dauden Totail (Cortai ocena Talal 2 431 12.9 7.2 6 0 6 10.9 0.0 10.9 1. 9.6 2.4 12.0 2 9 5.5 1.6 7.1 5. 6 16 210 31 21.4 22.9 44.3 12/ 23| 20.0 21.8 41.8 12 10. 22 14.5 /2:0 26.5 9. 8.6 4.312 5 10 9.1 9.1 18.2 9.6 8.4 18.0 0 0.0 0.0 00 0 00 00 00 0.0 0.0 00 0 20 0.0 0.0 0.0 3.6 0.0 • 36 0 0 8 24 0.0. 0.0. 0 00 11.4 0.0 11.4 3 20 all 00 1.2 1.2. 12.0 0.0 12.0 0 2.9 0.0. 2.9 0.0 0.0 0.0 0.0 0.0 000-ONw 27|15.0 2.4,17.4 27 /5.7 5.5 212 1 0.8 00 0.8 4 2.4 0.8 3.2 0 0.0 0.0 00 21 165 0.0 /6.5 0.0 1.6 12.9 00 12.9 6 10.9.0.0 10.9 13 15.7) 1.6 0.0 15.7 0 39 30.7 0.0 30.7 7.L 1.4 8.5 0. 2 12.7 00 /2.71 8 9 1.2 9.0 10.8 2 0 2 1.6 0.0 1.6 48/ 22 70 08.6 31.4000. 381 55 69130.9100.5528|83 663 3371108. 114 73 12789.8 10.2100. Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuffic. Into. 7-Psychological 8-Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuffic. Info. 7-Psychological 8- Unkrown sother Total MAY JUNE JUEr Nurber AUGUST Number Per Cent Number Per Cent Per Cent Number Certain" Doubtfull Total Certain Doubttull Total Certain] Doubtful Totai Certain) Doubttul| Total Certain | Doubtfus "Total Certain Doubttul] Total Certain Per Cent Doulbtful Totas Certain Doubtful! Total 17 20 13.2 2.315.5 533 15.3 18.0 39 39 78 9. 6 9.619.2 22 17 6 13 2 4.71 21.8 28 2.718.0 74 41 115 11.6 C.4 28 17.1 22 17 39/2.0 9.3 21.3 58 38. 96 9.1 6.0 15./ 43 45 88 10.6 11.1212 30 /3.2 10.1 23.3 28 12 40 /5.3 66 21.9 94 72 166 14.7 11. 3 8.6. 20.1. 5 2.3 1. 6 3.9 / 1.0 26.0 35 821 11.5 13 17 47. 2.0 2.6 6 12 7.5, 3.0 2 2 C.0 1.G 1.6 2 0.5 0.5 0.6 0.0 2 1.4 6.0 0.0. 1.6 0 0 0.0: 0.0 0.0 0.0 / 2 0.5 1•5 0.5 0.0 0.0. 00 0.2 0.4 16 12:4 0,0 12•4 22 12.0 0.2 74 0.0 0.0. 0.0 1 8і 14.0 0.0 /4.0 8 0 0 00 12.0 0.0 0 74 8 11.6 4.7 1.6 6.3 33 8 3.3 18.01 3.3 16 1.3 1.3 2.6 0:0 18.0 3.8 0.5| 4.3 121 24. 0 121 19.0 0.0 19.0 / . 25 3.8 0.2 4.0 0 40 10 29 // 0,0 0.2 0.2 40 9.8 2.5 0.0 0.2 4.8 1/ 79 2.7 19.4 16 27 0.0 19.4 1.2| 3.9 101 28 129 783| 217 100.147| 36 / 53 80.319.7100. 470168 638 73.7|263/100 275 132 407|67.6 32.4.100. SERTEMBER OCTOFER.. NOUEMTER DECEMBER Number Per Cent Total Number Per Cent Number Per Cent Number Per Cent Certain Doubtfull Total Certain| Doubttul Certain | Doubtful|" Total (Certain) Doubtful| Tolal Certain Doubtful| Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful" Total 121 3.6 7.2 10.8 8 12 20 6.4 9.6 16.00 5 9 14 4.7 8.5 13.2 5 1/ .7 4.8 10.5 18 13 9 27 27 40 10.8 5.4 /6.2 15 15 .33 112.0 14.4 26.4 14.21 18 16 34 7. 8 (7./1 15.2 32.3 11. 3.24.1 2 0. 9 / -11. 20 7.2 15.36 19.8 3.4,0 8.8 16.0 1/ 6,17 10.4 5.7 16.1 6.7 10.5 17.2 6 1.2 2 1.8 3 0.8 2.4 18 .6 3 4.6 1.2 18 2 3.2 4 2.8 0.9 1.L 3.7 1.0 1.0 4 0,0 0.0 0 •0.0 0.0 0.0 0.0. 0 19 0.0 0.0. 0.6 0.6 0.0 0. 8 0.8 1.9 1.9 0.0 0.0 0.0 8 0 0 0 2 19 0. 2 0.0 11.4 0.0 11.4 10 0, 10 311.8 8.0 0.0| 6.6 0.0 6.6 9 00 8.6 0.0 1.8 / 0 I 1 0.8 8.0 0.0 0.8 0 8.6 0 / 0.91 0.0. 0.91 | 1.9 0.0 1.9 42 25.3 00 25.3 30 1.2 0 30 24.8. 0.0 24.0. 21 4 0 z1 19.8 0.0 19.8 72 0 22 21.0 0.0 21.0 10 4.8 6.0 2 1 3 1.6 0.8 2.4 0 4 3.8. 0.0.3.8 8 0, 8 7.6 0.0 7.6 1//, 55,166 66.9 33. /| 100.) 78 47 125 62.4, 37.6,108.(73 |33 106 (68.9 31.1 108. 23 32 105. 69.5 30.5 100. 123

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TABLE ALS EVALVATION OF OBJECT SIGHTINGS BY MONTH OF YEAR, 1942 JANUARY FEBRUARY MARCH Number Per Cent Number Per Cent Number APRIL Per Ceat Number Per Cent Cenan Doubthul! Total Certain | Doubtful Tolal Certain Doubiful Total Cerian Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain| Doubtil Total Certain Doubtful Total Evaluation 0- Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic Into. 7-Psychological 8-Unknow S Other Total Evaluation o- Balloon 1-Astronomical 12-Aircraft .3-Light Phenom. 4-Birds •5-Clouds, Dust, etc. 6 Insuffic. Into. ;7-Psychological |BUnknown 9-Other Total Evaluation o-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4- Birds 5-Clouds, Dust, etc. 6- Insultic. into. 7-Psychological 8-Unknown 9-0ther Total Number MAX JUNE Number Number JuLy AUGUST Per Cent Per Cent Per Cent Number Per Cent Certain " Doubtil Total Certain Doubitull Total Certain Doubtful Total Certain] Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total 0 7.7 0.0 0.0 7.7 0 6 15.0 0.0|15.0 0 0.0 0.0 5 1.0 7.7 7.7 3 5.0 7.5 12.5 10.0 10.0 20.0 0 0 15.4 0.0 15.4 2 0.0 5.0 0.0 2.5 5.0 0.0 00. 0.0 6.6 0.0 2.5 . 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0,0. 0,0 0,0 0 3 0 C.0 0.0 0.0 0.S. 0.0 0,0 0.0 0.0 0 0.0 23. 0,0 23. 1 15.0 0.015.0 0 0 0 7.7 0.0 7. 2 2 0,0 5.0 0.0 5-0 4 30.8 30. 8 20.0 00 20.0 7.7 0.0 7. 10 0 10 25.0 0.0 25.0 00 00 0.0 20.0 0.0. 20.0 0.0 0.0 0. 0 60. 0 0.060.0 0.0 0. 0. 1.0 12 1/3 92.3 7.7 700. 33 7 40 182.5 117.51/00. 9 10 90.0 10.0 VAD. SEPTEMBER OCTeRER. NOUEMBER DECEMBER Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain! Doubtful Total Certain | Doubttul Total Certain! Doubtful| Total Certain] Doubtful Total Certain Doubtful" Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total 0 0. 0 0.0 0. 0 0.0 0.0 9.0 0 0.0 0.0 0.0 0.0 0. 0 0.0 20.0 0.020.0 2 3 16.7 33.350.0 133.3 33.3 66.61 2 0 0. 0 0. 0 0.0 0.0 0.0 0.0 0.0 0.0 0,0 2 0 / 00.0 8.0100.0 0.0 D.8 0.0 9. 0 0.0 0. 8 0.0 1,0 33.3 00 33.3 1.1 0.0 0.0 0.0 0 0. 0 8.9 0.0 9.0 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0,0 0.0; 1.0 0.0 0.0 0.0 0.0 00 0.0 0.0 0.0 / 20.01 20.0 0.020.0 0 0.0| 20.0 0 0 00 114.7 0.0 0.0 0 0 0.0 0.0 0.0 0.0 0.0 D.0 0.0 0,0 40.0 0.0/6.7 0.0 40.0 2 33.3: C.0 33.3 0.0 0. 0 0.0 0 0.01 0. 8 0.0 0 0 0 00 0 00 0,0 0.0 0.0 0.0 00 0.0 0.0 0 0,0 0 0 0.0 0.0 00 0.0. 00 0.0 0.0 5 100. 0 0.0/100. 4 2 6 667 33.3,100 2 3 667 333/100. 2 2100.0 0.0 100. 124

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Evaluation To- Balloon : 1-Astronomical 2-Aircratt 3-Light Phenom I4-Birds 5-Clouds, Dust etc. 16 Insuffic into. 7- Psycho lo gical B-Unknown S-0the Total TABLE A20 EXALUATION OF OBJECT SIGHTINGS BY MONTH DE YEAR, 1948 JANUARY FEBRUARY MARCH APRIL Number Per Cent Per Cent Per Cent Humber Per Cent Certain Doubtful Total Cerlain DoubAtul Total Number Certain Doubttul Number Total Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total 0.01 0.01 Certain Doubtful Total 0.0 0 0 0.0 0 0.0 0,0 3 0.0 40.0 30.0. 70.0 2 0 5 60.0 0.0 1.0 40.0100.0 28.6 0.0 28.6 0.0 00 00 0 0.0 0.0 0.0 1.0 2 3 2 20,0 0.0 20.0 D.D 20.0 20,0 20,0 0.0.300 20l 0.0 072 0,0 20 0.d 0.0 00 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0. 0.0 0.0 0.0 10.0 0.0 10.8 0 2 C 6 0 2 0.0 0.0 0.0 0.0 0.a 0.0 1.0 20.0 0 28.6 0.0 0 00 0.0 1.0 0020.0 0.d 0.0 00 0.0 28,6 0 10,0 0.0 10.0 0.0 0.01 0.0 0.0 0.01 0.0 0.01 0 0.0 0.0 0 0,0 0.0 0.0 0.0 10 0.0 0.00 0.0 0.0 0.0 10010.0 0 0,01 00. 00 No 14.3 0.0 0.0.14.3 0010.0 2 28.678.6 10,0 8.0 00 4 10 160.0 40.0100. 3 5 60.040.0100. 2 7 71.9 28.6100. 10 50.0 20.0 100. Evaluation 0-Balloon I-Astronomical 2- Aircraft 3-Light Phenom. 4-Burds S-Clouds, Dust ec. '6 Insuffic. Into. ¡ 7-Psychological 8-Unkrom SOther Total Evaluation 0-Balloon 1-Astroncaical 2-Aircraft 3 Light Phenom. + Birds 5-Clouds, Dust, etc 6 Insuttic. into. 7-Psychological 8- Unlenown S-Other Total Number MAX Per Cent Number JUNE JuLY Per Cent Humber Per Cent Number AUGUST Per Cent Certain Doubtful Total Certain; Doubtful Total Certain Dosbiful| Total Certain Doubthel Total Certain Doubtlul Total Certain Doubtil Total Certain Doubtful Total Certain Doubtful Total 0.0 0,0 0,0 10.0 10.0. 20.0 2 0 2 66.7 46.7 2 0.0 0.0 7 8.3 4.2/2.5 2 2 0.0 200 200 0 0.01 0.0. 3 12.5 /6.7 29.2 0 10.0 0.0: 10.0 0 0.01 0.0 0.0 2 6 116.7 8.3 250 0.0 700.20.0 10.0 33.3|33.3 0 H02 0,010.0. 10.0 14.2 0 0.0 0,0 0,0 0 0 0,0 00 0.00 1 0.0 AZi 4.21 0 0 3 38.0 со 30.0 0.0 0.0. 0.0 0 10.8 0.0/10.0 0 6 0.0 00 0.0 4 10 160.0 40.0100. 0 0 0 2 0 0,0 0,0 0.0 0,0 0.0 0.0 0,01 00 е 0.0 0.0 0.0 0.0 0 0.01 0,0 0 0.0 0,0 0,0 0.0 130.8 0.0 20.80 0,0 00 8.0 H.2 00 4,2 1 3 562 33.2100. 16 8 24 667 33.3/08. 2 0 •-D0 0 4 4 1 20,0 20.0 42:0 - 2 10,0 10,0 20.0 0 10l 0.01 0.0 00 0,4 0.0 / 0.0 0.0 10,0 00. 10.0 0.2 0.0 0.0 0.0 0,0 / 0.0 00 10.0 10.0 6 110 400. 60.0100. SERTEMBER OCTOGER NOVEMBER Number Per Cent Certain Doubtful Total Certain Doubtful Total Number Number Per Cent DECEMBER Per Cent Number Per Cent Certain Doubttul' Total Certain Doubtfut Total Certain Doubtful Total Certain Doubtiul Total Certain Doubtiul Total Certain Doubtiut Total 0 2 2 0.0 33.3 33.3 3 6 15.0 15.0 30.0 0.0 16.7 16.7 3 5.0 15.0|20.0 167 4 0.0 16.7 15. 0 0. 0. 5.0 5.0 L 4 2 3. 5.9 11.8.173 0 10.5 0. 0 10.5 8 41.2 5.9 47.1 2 4 6 10.5 21.131.6 0 4 23.5 0,0 23.5 0 / 0.0 5.3 5,3 0.0 0.0 0,0 00 5.0 0.00.0 0.0 0.0 2 5.0 0.01 0 0 10.0 0.0 0.0 0.0 0.0 0.0 5.0 10.0 0.D 0.0 0.0 0.0 2.0 0.0 0 0.0 0.0 0.0 0.0 4 30.0 0.0 0.0 00 0,0 0.0 0.0 0,0 0.0 0.0 4 00. 20.0 00 5.9 16.71 0.01 16.7 5.9 15.8 0 0.0 00 0.01 0 0 0.00 0.0 0 0.0 0.0 0.01 00 158 0.0L 0.0. 0.0 0.0 2. 10.0. 00.100 0 0 0.0. 00. 0.00 0,0 16.7 16,7 0: 0 0.0 00 001 в 1 3.9 00.89 0 5 263 00263 2 0 2 10.5 0.0105 2 4 6 [33.3 66.7100.131 2 20 650 35.0100.74 3/7824 17.6.100. 14 5 19 73.7 26.3.100. 125

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Evaluation -O Balloon 1- Astronomical 2-Autcratt 3- Light Phenom. 4-Birds 5 Clouds, Dust, etc. 6 Insuffic into. 7- Psychological & Unknown sOther Total tramation 0-Bailoon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuftic. Into, 7-Psychological 8 Unknown 9-0ther Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychotogical B-Unknown 90ther Total TABLE A21 EYALVATION OF DEJECT SIGHTINGS B4 MONTH OF YEAR, 1949 JANUARY FEBRUARK Уласы APRIL Per Cent Per Cent Certain Doubtful! Total Certain Doubtful Total Certain Router Total Certain encent, Total Number Per Cent Number Per Cent Certain (Doubtful ["Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total 0 5 7 0.0 6.2 12.5 6.2 5 25.0 31.2 43.7 6.2,31.2 NiN • 000 0 2,18.2 00 18.2 0.0 0.0 0.0 0/ 5.6 0.0 5.6 4. 6 18.2 36.4 546 21.1 47.4 68.5 6 3. 10.5 6,38.9 0 1 9.1 9.091 0. 0 10.5 0.0111.1 NO 000 9 000000 0.0 00 0.01 0 0 00 00 D.0 0.0 0-01 0.0 0,0 0 0 0.0 0.0 0:0 105 NO00 00 0.0 2.0 0.0 • 1 00 0.0 0.0 0.0 %/ 0,0 00 5.3 0.0 0.0. 0.0 0 0 001 0.0 1/2.5 0.0.12.5 0 0 00 00 SAI 0.0 0.0 20 5.3 6.21 0.0 6.2 0 L 9. 1 0.0 9.1 0.0 0. 0 0000000 0.0 0.0 0.00,0 0.0 0:0 00 27.8 a0 0.0 0.0 /6:7 0.0 0. 0 71/6 56.2, 43.8100.1 7 411 636 364/00. 10919|526 47.4100. 17 11 8 94.4 5. 6100. Number Max Per Cent JuLK Number AVGUST Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain | Doubtfull"Total 4 Certain Doubtful Total Certain Doubtful Total Certain 4 13.8 0.0 13.8 8.3 Doubttal Total Certain | Doubtful Total Certain Doubtful Total Certain | Doubtful Total 0.0 0.0 0.0 0. 0|0.0 6 20.7 6: 7 6.9 27.6 4 3 8.3 8.3 25.033.3 0.0 4.0 64.01 13.8 3 4 4 26.7 26.7 17 68.0 10.3 24.1 / 8.3 8.3 16.6 3 0.0 30.0 20.0 2 4.0 8.0 12.0 0.0 0.01 0.0 0.0 0.0 01 0.0 0.0 0.0 0.0 0.0 0,0 0. 0 0. 0 0.0 1.0 0.0 00 0.0 0,0 0.0 0 Р. 0 0.0 0.0 0.0 17.2 0 16.7 16.7 0 0 6.7 6.7 0. 0.0 00 0.0 0.0 0.0 0.0 0.1 17.2 0,0 20.0 20.0 0 0.0 0 0.0 0.01 00. 0,0 B. 3. 0.0 8.3 8.3 17.2 0,0 0.0 0.0 2 0.0. 17.2 0 0.0 8.3 13. 3 13.3 0 0 0.0 в. 0. 2 0.0 8.0 8.0 0.0 8.0 0.0 0.0 4.0 0,0 4.0 0.0 8.3 0.00 8.3 6.7 0.0 6.7 0 8. 0 0. 0. 0.0 241 5 29 82.8 17.2|100.1 8 4 1/2 166.7 33.3|/00. 8 15 46.7 53.3/00. 7 18 26 28.01 720100. SEPTEMBEA OCTOBER NOVEMaER DELEMIER Number Per Cent Certain | Doubtfull Total Certain Doubttul Total Number Per Cent Number Per Cent Number Per Cent Certaia Doubtful Total Certain Doubtful Total Certain Doubtiul Total Certain | Doubttul Total Certain Doubtful Total Certain Doubtful Total 33.3 0.0 0.0 33.3 0.0 0.0 0.0 0.0 8.3 44.4 в. 3 33.3 66.C 4 6.7 0.01 6.7 1.0 0.0 3 4 /1.1 33.3 4 8 33.3 6 13.3 26•639.9 1.0 0.0 8.3 8.3 13.3 0. 0|13.3 NO 0 00 0 0 0,0 0.0 22.2 2 2 2 0.0 0 0 0.0 0.0 0.0 0 0.0 0.0 0.0 0,0 0.0 0.l 0.0 0.0 0.0 0.0 0.0 0.01 0.0 0.0 0,0 0.0 0.0 0 0.0 66.7 0.0 0.0 00 0.0 0.0 0 0.0 2.0 66.7 22.2 a0 22.2 0 0.0 2 0 0.0 0. 0 0 0 0.0 0.0 0.01 0.0 0.0 0.0 /I. / 0.0 0.0 11.1 0.0 0.0 010 0.0 0.0 0.0 0 00 0 0.0 0.0. 00 0,0 0.0 0.0 6.7 0.0 6.7 оло 0.01 0.0 0.0 ! 16.7 0.0 16.71 3. 0.0 0.0. 0.0 20.0 00 20.0 0. 0 0.0 0.0 2 13.3. 0.013.3 3 100.0 0. 0100. 4 9 556 44.4000 6 5 12 50.050.0/00. 4 115 | 733|26.7100. 126

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Evaluation 10 Balloon 1) -Astronomical 2-Aucratt 3- Light Phenom. 4-Birds 5-Clouds, Dust, elc. G Insullic into. 7-Psychological 8-Unknown 9 Other Evaluation 0-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4- Birds 5-Clouds, Oust, etc 6- Insultic. Info. 7-Psychological 8- Unknown 9-0 ther Total Evaluation o-Balloon 1-Astronomical 2-Aircraft ,3-Light Phenoa. 14-Birds 5-Clouds, Dust, etc. € Insuffic. Into. 7-Psychological 8-Unknown 90 ther Total TABLE A22 EVALUATION DE OBJECT SIGHTINGS BY MONTH. DE YEAR, 1950 JANUARY FEBRUARY MARCH Number Number Number APRIL Per Cent Per Cent Per Cent Number Per Cent Certain Doubthil Total Certain Doubtful, Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total 0.0 0.0| 0.0 2 0 2 15.4 0.0 15.4 5 6 17.9 3.6 21.5 7.1 0.0 7.1 5 3 38.5 23.1616 2 3 5 15.4 23.138.5 0 4 14.3 0.0 14.3 7./ 0.0 7.1 2 15.4 0.015.4 0.0 3 0 2 15.4. 0.P 15.4 10.7 14.3 25.0 14.3 0.014. 3 0.0 0.0 0.0 0.0 0.d 0 0.0 0.0. 0.0 7.2 7.7 0.0 0.0. 0.0 0-00 7.2 0,pl 7.7 000000 0.0 0.0 0.0 0.0 0.0 0 0.0 00 0.0 0 0.0 0. 0 о-a 0.0 0,0 00 0.2 0.0 0.0 0.0 00 0.0 0.0 0 0.0 0,0 0.0 7.7 0.0 7.7 0.01 0.0 00 0,0 0.0 7.7 0,0 7.7 4 0 0 0 21-4 0.0 21.4 3 21.4 7.1 00 21.4 00 0.0 0.0 00 7.1 14.3 0.0 14.3 42.9 7.7 0.0: 7.7 15.4 0.0 15.4 1.0 3.6. 3.6 0 1.1 00 42.9 0.0 0.0 10 113. 764 23.1 100. 3 1 3 769 23.1189.22 6 28|78.6 21.4 100. 14 14/108.0 0.0000. MAr Number Per Cent Number JUNE JULY AUGUST Per Cent Number Per Cent Number Per Cent Certain | Doubtful Total Certain| Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtiul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total /4. 31 0.0 14.3 14.31 14.328.6 4 0 4 66.7 0,9 0 67.0 0 6.7 0.0 2 0.0 6.7 6.7 6.7 4 10.0 0.0 0.0 0.0 5 0.010.0 5.0 20.8 25.0 2 0 0 0 0 2 0 0.0 1.0 0.1 0 0.0 0.0 0.0 26.7 67 33.4 4 5 20.1 5. 0. 25.0 0,0 0.0 0.0 0 0 0.0 0.0 9.0 0.0 0.9 0.0 0.0 0.0 0.0 0.01 0.0 0.0 0.0 0,0 0.0 0 0.0 0.0 0.0 0 0.0 0.0 0.0 28.61 0 0.0 28.6 D 0 0.0 0.0 0.0 0.01 00 0 0 0.0 0.0 14.3 0.0 1/4.3 0 133.3 0.0 0.0 00 33.3 0.0| 14.314.3 0 2 •0 0.0 0.0 4 0 0 4 4 0.0 0.0 40 0.0 0.0 0,0 0.0 2.0 0.0 0,0 0.0 0.0 26.7 00 267 0.0 0.0 0.0 2 5 00 10.0 0.0 10.0 0.0 0.0 1.0 0.0 5 2 7 171.4 28.6100. 6 0 6 100.0 0.1/100. /4 0 / 26.7 0.0 26.7 25.1 0.0 25.1 0.0 0.l 0.0 5.0 8.0 5.0 15. 93.3 6.7,100.15 5 201 75.0) 250.00- SERTEMBER OCTORER NovEMBER DECEMBER Number Per Cent Number Per Cent Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtsul Total Certain Doubtfal Number Total Certain Doubtful Total Certain Doubtfull Total Certain Number Doubtful Total Certain Doubtful Total 0 B0 0.0 0.0 19.0 0.0 10.0 2 0. 0|16.7 3 5 17.6 29.4 5 5 38.5 2 0 16•7 0.0 11.8 0.0 38.5 10.0 10.0 20.1 0.0 0.1 15.4 0.015:4 0 0.0 18.0 10.0 2 23.5 11.8 35.3 16.7/6.7. 33.4 / 0.0 5.2 0 2.0 0.0 9.0 0. 01 0.0 5.9 0.0 0.0 0.0 0.0 0 0.0 0.0 0.0 3 0 0 0. 0 0.3 0.0 0.0 0 0.0 0.0 0.0 0.0 001 0.0 0.0 0.0 0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 0 0.0 001 0.0 0.0 0.0 0.0 0.0 23.1 0.0 00. 8.3 00 5.9 0 23.1 0.0 00 8.3 5.9 0.0. 0.0 3 23./ 0,0. 23.1 0 0.0 0. 00 0.0 в 100. 00609 10.01 0.0 0.01 5.9 0.0 5.9 4 0 1 133.3 00 33.3 2 D 2 11.8 0.0118 0.0 0.0 8.3 8.0 8.3 15.9 0.0 5.9 13 13 100.0 0. 0.100. 8 2 70 80.0| 20.01100. 101 2 12 833 167/00. 17 5//7/70.6 29.4/00. 127

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Evaluation 0-Ballooe i 1-Astronomical 2-Aurcraft 3 Light Phenom 4-Birds 5-Clouds, Dust etc. G Insultic, into. 7-Psychological 8. Unknown 9 Other Total Evaluation 0-Balloon -Astronomical 2-Aircraft 13-Light Phenom. 4-Birds S-Clouds, Dust, etc. 6- Insuffic. info. 7-Psychological 8-Unknown 9-Other Total Evaluation 0-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4- Birds. I5-Clouds, Dust, etc. E- Insuffic. Into. 7-Psychological -Unknown, Is Other TABLE A2S ENALUATION DE OBJECT SIGHTINGS BY MONTH. OF YEAR, 1951 JANVARY FEBRUARY Cenain Dotal Total Certain outal Toll Certain Dubini Total (Corain contal Total MARCH APRIL Number Pes Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2 3 11.! 5. 616.7 0 1 11 0.0 11.1 0.0 0.0 0.0 0.0 0.0 00 3 5.6 11. 116.7 2 2. 2 0 9.01 11.127.2 2 - 14.716.7.33.4 00 00 20. 11 111 0.0 0.0 0.0 0 2:2 6.0l 00 0.0 5 27.8 0.0. 278 0.0 0.0. 0.0 4 22.2 0.01 2.2 0.0 2₴ 13 5 118 172•2 27.8/00. 1. 000000 4 3. 3. 0.0 33.3 33,3 0000 0.0 0.0 0.0 00 0,0 0.l 00 0.0 0.0 0.0 0c2 0.0 1.0 0 0 0.0 O.l 0 0.0 / 111 0.0 11.1 2 22.2 0.0 22.2 00000001 0.0 16.7167 10.0 0.0 886888 00 00 0.0 000000000 HEREBESEE 0.0 33.3 00 0.0 00 0.0 00 0.0 00.66.7 0.0 0.0 00 0.0 0.0. 0.0 5 9|44.4| 55.6100. 4 2 6 66733.3100 31 031010 0.0100. MAY JUNE Number Per Cent Number Per Cent Number Certain | Doubtful Total Certain] Doubttull" Total Certain Doubtful Total Certain Doubtful Total Vuky Percent Number HUG UST Percent. Certain Doubtful Total Certain Doubtful Total Certain Doubthil Total Certain Doubtful Total 25.0 00, 25.0 0,0 80 0.0 9. 0 D.0 0.0 6.2 6.2 12,4 0.0 0,0 0 0,0 0.0 0.0 2 3 0.0 25.0 100.0 12.5 1/2.5 25.0.375 0.0 0.0 0.0 0.0.75.0 - 0.0100.0 0.01/25 6.2 0,0 6.2 0.0 0.0 0.0 0 00 0.0 0.0 0.0 0.0 0.0 60: 25.025.0 0.0 0.0 0,0 0.8 0.0 0,0 0.0 0.0. 0.0- 0.0 0 0,0 0.0 0.0 0.0. 0.0 00 0.0 0 0 0 00 0.0 0.0 0 0.0 00. 0.0 0.0 0.0. 0.0 0.0 00 12.5 12.5 25.0 60.25.0 0,0 0.0 0.0 0.0 0.0 2 25. 0 0.0 250 3 0 7 0.0 00 0.0 112,5 / 0 0 0 0 2 6.2 6.212.4 0 00 00 00 0.0 0.0 3 0.0. 0.0 4 175.0|.25.01/00. 0 0 0 0 18.8 0.0 0.0 /8.8 0.0 0.0 143.8 0.0 L 0.0.43.8 0.0 12.5 6.2 0.0 6.2 100-01 0.01100. 5 3 8 625, 375/09 14 2 16/875/2-51/00. SEPTEMBER OCTOBER NOvEMBER Number Number Number DECEMBER Per Cent Per Cent Per Cent Number Per Cent Certain Doubtfull Totat Certain Doubttul Certain Doubthul Total 6.7 Total Certain Doubtful Total Certain Doubtful Total Certaia Doubtful Total Certain Doubtful Total Certain Doubtful Total 0.0 5.3 0.0 5.3 0.0 8. 3 0 10.0 3 03.3 47 8 8.3 0.0. 10.0 26.3, 5.3 31.6 33.31 20,0 10.0 300 6:7 6.7.20.0 0.0 5 2/. 33.3 0.0 6.7 4 21./ 0.0 16.7 0.0 6. 3 300 0,0 30,0 0.0 0.0 0 0.0 0.0 0.0 0.0 0 2 0.0 D.0 0,0 0.0 9.0 0.0 0,0 0.0 0.0. 0,0 0.0 0.0 00 00 0.0 0.0 2 0.0 13.3 0.0 0.0 00 0.0 13.3 0 0 0.0 0. 0: 6 40.0 0.0 0.0 40.0 0 8 0 0 0.0 0.0 8.3 00 10.0 8.3 0, 0 8.0 0,01 D0 0.0 0 8 111 0.0 42.1 0 0 0.01 9.0 00. 0.0 0 00 00 0 1.0 10.0 0.0 0,010,0 110.0. 0.0 10,0 2 113.3 10.0 0.010. 0.0.13.3 0 00 0.0 00 10.0 0.0 00 .0 0,0 0.0. 10, 14 1/5/93.3 4.7100.118 19 94.7, 5.3 100. 7 5/2/58.341.71/00. 9 1/0/900 10.0 100. 128

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Evaluation. lo Balloon 12-Aurcratt 3 Light Phenom. 4-Burds S- Clouds, Dust elc. G Insuftic info. 1-Psychological & Unknown 9 Other Total Evaluation 0-Balloon [1-Astronomical 2- Aircratt :3-Light Phenom. 4-Burds 5-Clouds, Oust, etc. 6-Insuftic. Into. 7-Psychological 8- Unknown Rother Total Evaluation 0- Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds S-Clouds, Dust, etc. 6 Insultic. Info. J-Psychological 8. Unknown 9 other Total TABLE A24 EVALNATION JINUARY FEBRUARY Number Per Cent Number Per Cent Certain Doubtful, Total Certain | Doubttuld Total Certain | Doubttul Total Certain Doubtful Total 7.7 0. 01 7. 0. 1 23.1 23.146.2 5.9 0.0 5.9 3 6 4 23.5 5.9 29.4 0.0 0.0 4 11. 8 11.8 23.6 0.01 001 0.0. 0.0. 0,0 0 D.0. 0.0 0.0 0.0 0.0 2 2 2 15.4 15.4 15.4 0.0 C.0/5.4 0.0. 15.4 0. 01 15.4 4 2 0 0 0 0 0.0 0,0 00 0 0.0 5.9 0.0 0.0 0.05.9 40. 0.0 0.0 4 23.5 2 11.8 0.0 23.5 0. 0.11.8 10 3 113 176.9! 23.1 100. 14 3/17 8241 1/7.6/90. 14 OF OBJECT SIGHTINGS BY MONTH OF YEAR, MARCH APRIL - 1952 / 2 0 5 5 4 4 /3.0 4.3/7.3 4. 3 0.0 13.0 4.3 8.7.217 ao 0.0. 0.0 4.3 00 4.3 0.0 4.3 4. 3 0.0 4.3 43 0.01 0.0 0.0 17.4 0.0.17.4 4. 3 31.7 26.0 3 12 2 10 5 3.7 0.12 14.6 7/9 14.6 0 1.2 3 2.4 10 29 2.4 6. 0.0 14.6 8.5 23.1 0,0 1.2 1.2 3.6 0 12.21 0.0 0,0 0.0 12.2 1.2 29. 2 1.2 35.4 2.4 0.0 35.4 0. 0. 2.4 23 60.9| 39.11/08. 72 10 8 2,87.8 12.2 180. •LAY JUNE Jurr Number Per Cent Per Cent AUGUST Number Per Cent Number Per Cent Certain Doubtful! Total Certain Doubtfull Certain Doubtful! Total 14 13.9 3.8.17.7 20 5 25 Certain Doubstul Total Certain Doubthul, Total Certain | Doubtful Total Certain Doubttul Total Certain | Doublful Total 13.5 3.4/6.9 :4. 11. 3 16 117.7. 2.5 64. 40 /04 11.9 75 194 36 36, 72 11.0 11.0 22.0 202 2/ 13.34 14.2 8.8 23.0 5/ 10 25 74 9.5 4.714.2 38 2260 11.7.6.7184 21 13.912.7 12.736624 11 35/1.2 7.4 23.6 3. 3.8 85 64 149 15.9 11.9 27.8 40 31 71 12.3: 9.5 21.8 0.0. 3.8 / 01. 07 00| 0.7/1 2.1| 0.7 2.8 5 5 10 15 1.5 3.0 0 0.0. 0.0. 0.0. 0 0 00. 0,0. 0,0 3 4 0. 6 0.2 0.8 0 0 0 R0 D.0 1,0 412 00 25 0 0 0.Đ 0.0. 0.8. 1 2 0.2 0.2 04 1 00 0. 3 0.3 6 10 6 2.5 і 6 7.6 0.0, 7.6 17 17 0.0. 11.5 20 0.0 1.0 4 0 19 12.7 00. 12.7 26 11 0 0 4 11•5 6/ 0 61 11.4 00114 30 0 30 93 00 9.2 2.7 0.0 2.7 5 13 15. 0.9 24 8. / 9 12.5 0. 3 2.8 26 117.6 0.0//6100 0 100 18.7 0.0.18.7 60 0 60 18.4. 0018.4 7 76 1 31 8.91 5 3.4 07 41 11 1 12 21 02 23 9 4 13 28 12 4.0 63 16/79 79720.3100.1118 30 148 797/203 100.395 1 41 536 73.7 763/100 226 100 /326 69.3, 30.71108. SEPTEMBER Number Per Cent OCTOBER NOVEMBER DECEMBER Вяки Per Cent Certain Doubtfull Total Certain Doubthill Total ertain | Doubtful Total Certai Number Per Cent Number Per Cent Doubtti Total Certain | Doubtful Total Certain Doubtful Total Certain] Doubthul Total Certain Doubtful | Total 4 10. 14 3.2 8.1. 11.3 3 9/2 4.9 14.819.71 2 10 7 17 5 7 4.0 10.0.14.0 2 |0.0 4.8 4.8 8.1 27 36 5.6 0 3 (3.7 8.14 9.8 13.1229 5 5, 10 10.0 10.0 20.0 6 5 11/4.3 /19 26.2 7.3 2/ 8 29.1 3 0.8 3 9 17 4.9 14.819.7 3 6 6.0 60 12.0 1 19 11 2.4 23.8 26.2 16 2.4 138.01 3.3 3.3 2 3 40 2.06.0 1 0 1 2.4 0.0. 2.4 3. 0.8 1.62.4 - 1.6 1. 6 3.2 00 00 00 0 0.0 00 00 0.8 0.8 0.0 / 6 11.6 0.0 4.0. 40 0,0 /1 8.9. 0,0 00 0.0 8.9 4 6.6 00 6.6 Be 0.0 8.0 3 7.1. 0.0 7.1 0.8 0.0 0.8 4 31 25.0: 0,0. 25.0. 11. 0. i 0.0 4 6,0 0.01 2.0 00. 2.01 - 0.0 00 00 18.00.0 18.0 15 0 15 30 0 0.030.0 11 0 IT 26.2 0.026.2 7|4.8 0.8. 5.60 3 3.31. 6. 4.9 2 0 2 40 00 4.0 3 0. 3. 7.1 00 7.1 74 50124 59.7|48.3/0030 31 61 (492|50.81108. 34 16.50.68.0 320100/25 17 42 59.5 40.5, 100. 129

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Evaluation lo Balloon 1-Astronomical !2-Aurcraft 13-Light Phenom, 4-Birds 5-Clouds, Dust, etc. 6 Insullic into. 7-Psycholopical 9-Other Evaluation o-Balloon - stronomical 2-Aircraft 3-Light Phenom + Birds 15-Clouds, Dust, ac 6 Insuffic into. 7-Psychological 8-Unkrown 9-0ther Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft -Light Pianom. 4- Birts S-Clouds, Dust, etc. 6 Insuffic Ito. 7-Psycholopica 6 Unlinown other Total Evaluation o Balloon I-Astronoaital 2-Aircraft 3- Liftt Phenos 4-Birds 15-Clouds, Dust, etc. Glesaftic Into. 7-Prydolorical Total TABLE A25 EVALUATION DE ALL SIGHTINGS BY SIGHTING RELIABILITY GROUPS ALL YEARS ESCELLENT G000 Number DOUBTELL PoOR Pes Cent Per Cent Certain Doubitul Total Certain Doubtful! Total Certain Douber Tobi Certain conti Totel certain Doubtful Total Certain Do Total Certain Dantel! Total Certain on Tota 1913 32 6.21 42 10.9200 63/63 9.3 5.915.2 100 80 110 2.7 138 6.2/3.9 24 75 2914.6 19.5 340 156 10.6 262 51 63 63126 9.7 4.6: 143 1.0 9.7 243 166 110 216 10.3 259 202 121 12.0/ 2%0 19 60 13.31 6u2 195105 108. 2/3 9.8 10.11199 157/35 292 12.1 10. 4: 225 0.6 0.0l 0.6 19 1.5 15 30 12 1.2 2.4 5 26 72 9.1 5,0 14.2 2 10 09 0. 811 5 00l 1.0 2 0.0, 0.6 1.2 0.6 5 05 0410.9 12 15 0.9 10 16 0.2 1.1 0.2 0.0 0,0 0.0 18 0.7 6.9 3 7 0.3 12 05 3 0.6 0.0 0.0 12. 12 .3.9 0.0. 39 33 3 33 0. 0.0 3.1 0.0 0 150116 0.0/11.6 0.0 19.6 0.0 00. 0.0 0.3 3.1 0.1 0,9 150 2/ 6 27. 1.6 103 05 2.1 19 3 103 19.6 11 27 0.6 33 108 0 10535.1 0.0 351/282 0 212 264 0.0 264 203 0 20315.6 1.0 15.6 96 96/18.3 2.0183 0 17 5.5 0.0 5.5 42 1L 53 39 1.0 49 42 12 54 3.2 0.9 У.1 12 23 2/ 23 44 1244 64 308|792 208100 754 3161070/705 295100. 906 39212981698 302/108 396129 525 25.4 24.6100. TABLE A26 EVALVATION OF GROUPS, 1947 ALL SIGHTINES BY JIGATINE RELIABILITY Number EXCELLENT Per Cent Number GOOD Per Cent Number DOUBTFUL Pear Per Cent Number Per Cent Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total Cerlain Doubtful| Total Certain Doubtful Total Certain Doublful Total Cerlain Doubiful Total Certain Doubtful Total 5.3. 1.0. 5.3 0 0.0 2.8 3 0. 6.7 2 11.8 0.0 118 3 315.8 0.015.8 2 53. 5310.6 AN 128 11.19.4 3 67 D.0 2 11.1305 4:20,356 8.9 445 2 28 2.8 5.6 0 00 al 122 0.0 0 n 0 0.0 0.0.00 1 2.8 0.0 28 0.0 2.2 0 0 0.0 0.0: 0.0 0.D 0.0 00! 0 00 80 0.0 0.0 0. 0. 0.0 0.0 00 0 0.6 0000 6 353 00 35.3 0 00 0.0. 0.0 0 00 0.0:00 0 0.0 0. 0.01 00 0.0 00 0.0 5,6 0 00 00. 00 4. 21.0 00.210 2 0.0 L 2 2.8 5.6 Y.4 0.0 4.4 0.0 0.0.0.0 0.0 305 2:8 3 4:4 22 616 6 6 353 00 353 1 5.9 00. 5.9 6 316 _00 3.6 0.0 305 9 20.0 0.0 200 211.8 00 11.8 3 158. 0.016.8 7 19.9 00 194 0 2 155 0.0 155 0 0 00 0.0 0.0 18 1 /9/97.815.3100.30 6: 36. 833/16.7000. 40 5 45/889 11.1 100117 0| 17/100. 0.0:100. TABLE A27 EVALVATION DF ALL S16HTNGS BY SIGHTING GROUPS 1948 RELIABILITY EXCELLENT Goop DOUBTFUL Number Per Cent Number Per Cent Number Per Cent Number PopA Per Cent Certain Doubtul Total Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Totas Certain Doubtsul Total Certain Doubtful Total 2 2 4 8.3. 9.31 16.6 9 8 17/32 11.8 250 10 16 58 97.15.5 0 000.0. 0.0 12 29.7 208 500 13 7.23 6 119.1 10.3 27.415 = 41 146 25.3 39.9 L 2. 10.0 10.0 200 9000000 5 2 831 26 0.0 8.3 3 44 0.0_ Y.4 19 87 y.9 0, 0.0 0.0 0.0 29 1.5 - 4У 5. 0.0 0.0 4.9 13.6 4.2. 4.2 2 15 2.9 4.9 0.0 0.0 0.0 0.0 0.0 .4.5 . 0.0 00 1.0 1.0 0.0 0.0 00 000 0.0 0.d 0.0 29 0 00 00 0.0 • 2 29. 00. 13 14 36 00 13.6 0 0.0 0.0 00 5 208 00 20.2 14 0. 14.206 00 206 6 58. 0.05.8 25 44 29 7.3 6 6 0.0 5.8.5.8 104000 0000000 2200 0.0 200 0 0.0 00 0.0 0 00. 0.0, 0.0 0 00 00 00 3. 300 0.0.30.0 e 00 00.00 3 2 20.0. 0.020.0 0 0 00: 00|0.0 110.0. 0.0 100 16 8 24/667/33.3100. 48: 20 68 706 194 1005152103|495.505/00. 110/900. 100/100 TABLE A28 EVALUATION OF SIGHTINGS BY SIGHTING RELIABILITY GROUPS, EXCELLENT Herber Per Cent Number Goop DOUBTEUL Pega Per Cent Certain Doubtful Total Certain | Doubtful Total Certain Doubthi Totad Certain Doubtful Total Certain Number Per Cent Number Per Cent Doubtful Total Certain Doubtful Total Certain Doubtful! Total Certain Doubtiul | Total 00910 00 0.0 1.0 3 2 2 68 27 9.5 10 3 131 4.91. 15 6.4 16 228 22.8 456 36 19 41 48.7 52.8 59/06.233.29.2525 29 1 12 80 12 45/9.0. 345535 11.4 00 11.4 6 814 8:1 10.8 18.9 1734 8. 4 8. 4 16.8 4.8 1. 2, 6.0 0.0 0.01 0.0 0.0 0.0 0.0 00 0.0 00 0.0 29: 2.9 0 0 0 0 0 00 00 00 00 0.0 0 00 0 у 20 20 0.0 2.0 0 00. 0000 000 00 0 0.0 0.0 0 0.0 00. 0.0 e 00 20 00 00 00 001 00. 00 00 0.0. 0.0 6 80 0.0 8.1 0 21. 10.4 00 0.0 e 0 0.01 0.010.4 00 0.0 25.2 8 8108 3 122 0.0.10.7 3.6 00 3.6 0.0 25.2 00 10.8 5143. 0.0. 143 9 8 108 00108 21 0. 2/10.4 0.0:10.4 18 18 218 8.0 21.4 3 31-5 0.011.51 3 3 36 00 36 26 9 35 743.25.7100. 28 46 74 3281 6221100.123 29. 202/609 39.1100. 54 30 87 643.35,7100. 130

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Evaluation lo Balloon ( 1-Astronomical 2-Attcraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. & Insuflic into. 7-Psychological B- Unknown 9 Other Total Evaluation O-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 16- Insuftic. Info. 7-Psychological 8- Unknown 9-Other Total Evaluation o-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. E-Insuffic. lato. 7-Psychological 8- Unknown Other Total TABLE A29 EVALUATION ALL SIGHTINGS BY SIGHTING RELIABILITY GROUPS, 1850 EXCELLENT 6000 DOUBTFUL POOR Number Per Cent 11.04 Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtiul Total Certain Doubtful Total 0 4 8.2l 0,0 8.2 31 5.11 0,0 5.1 18 5 23 14,6 4/ 11,7 2 10 10,7 2.7. 13.4 7 14 14,3 14,3 28.6 Z0 28, 339 13.6.47.5 12 8 20 98 65 163.10 12 13.3 2.716.0 82 2l 10.2 0,01 0.8 0.0 0 00 0,0 0,0 5 0 0 11 10.2 85 18717 0. 00 0.0 0.0 0,0 00 0.0 0,0 0.0 0,0 0. 0.0 0,0. 0.0 0 0000 26 13,81 23 211 12 0.0 0,0 0,0 0.0 0.8 0,0 0.0 0,0 822. 00..32 17.00: 17 25. 0 25 203 00 283 0,0 00. 0.0 0 0.0 00 0,0 0 0,0 00 0.0 000000 12 16,0 00 160 00 0.e 0 e0 00 0,0 al de. e0 19 29J 00 25.3 53 00 53 2/ 0 21 | 42.91 00|42.9/2 0 17 203 00 20,3 22 0 22 179 00 179 1 6 16 24,3. PD 21.3 L 2.0| 00. 20 4 17 51 6,8 3 4 7 24 32 56 2 1 2 27 00 2,7 41 8 49|837 16.3 100. | 43| 16159|72.927.1 100. 97 261123/78.9 211 100 71l 4259475.3 100. TABLE A30 EVALVATION DE ALL SIGHTINGS B4. SIGRITiNG RELIABILITY GROUPS 1951 EXCELLENT 600s DOUBTFUL Number POOR Per Cent Certain | Doubtrull Total Certain Doubtful Total (Cetan until Total Ceran cot Tota Cortin Mortal Toal cetan canal Tal Corin Coutal Total Contain Pent Told 5.5 0,0 5,5 5 6 12,2 7,4 14,6 3 5 16.2 14/ 278. 13 5 18 31712,2 43,9 2 3 4 3,4 3.4 6.8 3 4.7 2.3, 20 4 7 5,2 69. 12.1 16.7 5.5,22.2 0 7 17/ 0,0 17,1 3.4 69: 10,3 3 6 4 6 12 14,0 14.0.28,2 7 0 0,0 0 0 9,3 7.0| 16.3 0.0 0,0 0,0 0.0 17, 5,1 0,0 0.0 1.0 0,0 0,1 00 0,0 0,0 00 0 e 00 2.4 0 3,4 0,0 2.4 0,0 0e 0,0 0,0 00. 0.0 0,0 0 0,0 0,0 00 0.0 0.0 0.0 0 0,0 0,0 0,e 9 0 9.45.5 0,0 15.5 D 5 11,6 00 0.0 116 00 0,0 00 0 0 0,0 0,0 0,0 2 1.7 3,4 00 0.0. 1.0 7 38.9 0.0 36,9 9 2118 00.219 25 0.25 4.3,1 0.0 43,1 1/ 0.0.25,6 5.50 5.5 0 0 0. 0 0,0 2 3,4 0.0 3.4 5 25,6 5 11.6 00: 11,6 15 3 18 83.31 16.7|/о0. | ЗН. 7|41|82.9/17.1100|46 12 58 79320.7 100. | 33 10 43 76.8 23.2 100. TABLE A31 EVALVATION GROUPS -OF ALL SIGHTINGS BY SIGHTING RELIABILITY 1952 ExCELLENT Number 6000. DOUBTFUL POOR Per Cent Number Per Cent Number Per Cent Number Per Cent Certain | Doubtfull Totat Certain | Doubtful Total Certaia| Doubtful| Total Certain Doubtful, Total Certain | Doubtful Total Certain Doubtful Total Certain| Doubtful Total Certain Doubtful Total 22 6,7 6.713.4 52/129 97 6,6 143 61 60 12/ 9,0 7815.8 38 21 59 12,8 2/ 19,9 10.4 4.9 15.3 1110 82 50 160 13.9 6.3 20,2 109 37146 14.2 4.8 19.0 74 25 49. Lbe5 27 0 H. 35 16 0 0 43/166 1,8, 26,4 94 176.10,3 11.9 22.2 112 100 2/2 14,6 13.0 2716 29 22 51 9,8 24 17,2 1.2 0,0 12 8 15. 0,9 10 5 0,5 0.1 1.9 12 9 0 2/ 12 2.8 5 0 5 1,7 0,0 1.7 0.0 0,0 0.6. 7 3 0 10 1.3 3 10 0.9 04 1.3 0,2 0.3 1.0 0.0 0,0 10. 2.3 0,4 0,9 0 0 0.0 0.0 4 2,5 0.0 2,5 22. 22. 2.8 0.0 2.8 0,0 79 0 79 0,5 10,3 0.010,3 61 20,6 0,0 20.0 0 00 0.0 2 6 20 1.1 60 36,8 00 36.8 12-281 0. 4.Э 31 0. 228. 279 00 288120 4 27 6 0 170 1516. 0,0 15.6. 47 0 47.15,9 0.D 15.9 00 4,3 37 3.9 0.8. 4727 2 29 35 0,3. 3.8 01212 00 41 4./ 128 35 163/28.51 215/100. 571/221 792 721| 271(00 549/218 767 716/28.4 100. 212 84 296 716 / 284100. 131

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Evaluation O Balloon - Astronomical 2-Arrcratt 3-Light Phenom. 4-Birds S-Clouds, Dust etc. G-insultic Into. 7-Psychological 8. Unknow .. Total Evaluation 0-Balloon 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic info. 7-Psychological &- Unknown $ Other Total Evaluation 0-Bailoon 1-Astronomical 2-Aitcraft 7-Light Phenom. 4 Birds 5-Clouds, Dust etc. G-InsuMic. Info. 7-Psychological &-Unknown s-Other Total Evaluation 0-Baltoon 1-Astronomical 2-Aitciatt 3-Light Phenom. 4-Birds S-Clouds, Dust, etc. G Insuftic lato. 7-Psychological Total TABLE A 32 EVALUATION DE UNIT_ SIGHTINGS BY SIGHTING RELIABILITY. GROUPS, ALL YEARS EXCELLENT 6000 DOUBTFUL PooR Number Per Cent Number Pes Cent Certain Doubtful Total Cerlain Doubtul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtill Total Certain outl Total Cerain Doiteal Total Per Cent Certain Doubtful Total 19 30- 2.8 4.5. 12.3 8L 51131. 9.9 5.9.15.8 16 44140 84 21155 41 25 12 28 4.7 13.5 25 6749 10.1 274 144 86.230 16,5 9.9 2.4123 80 203 13.4 88 22.4 75 64 139 14.0. 11. 9. 25.9 25 18 43 10.3 14.177 94 85 119.10.8 98.206 115. 0 0.8 15 98 21412.7 11.023.7 58 33 91 108 6.2 170 2. 0.0.08 9 1911 10 21 12 271.7 13. 30 5 0.9 00 0.9 2 08 0. 2 0.0 0.8 10 5 4| 2 06 05 11 3 9 01 03 1.0 0.0 0.000 2 5. 1 0.2 0.6. 0.8 / 2 3 01 02 0.3 NO 04 0.2 0.6 00 0.0 00 10 10 4.41 0.0. 4.11 29 0 29 3.3 0.0|3.3 119 0 119.13.2 0.0 112103 00 00. 0.0 3 1 4 0.3 010.4 21 0 103 19.2. 0.0 19.2 k 2113. 0.1 30 12 14 12 04 24 13 16 33 00 313 212 0 212. 24.3 0.0 243 126 27 0 12413.9 0.0 139, 83 0 83 15.5 0.0.15.5 0|13 53 00 53 34 9 45 411.0 51 9 34 30 10 40 16 10 16 30. 1.9 4.9 1186| 59243 765 235:100 621/250 811713 2871001629 275 904691 3041100401/135 536/748 25.2100. TABLE A 33 EXALUATION.. OF UNIT SIGHTINGS BY SICHTINE RELIABILITY GROUPS, EXCELLENT 1947 Go0s DOUBTENL Per Cent Number Per Cent PooR Number Per Cent Number Certain Doubtful Total Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfulf Total Certain Doubtul Total Cartain Doubtrul Total Certain Doubtful Total 0.0 3 3 5.9 5.9 0 3.4. 0.0 3.4 3 0.0 8. L 2 2 12.5 0,0 12.5 11.4. 5.9 00 17.k 5 4 3 8.6 172 13.81310 2 4 13 25.2 11.4 37. 2 12.5 0.0 12.5 5.9 11.8 3.4 0 3. 4. 6.9 0.0 0,0 0.0 0 0.0 1.0 D.0 0 0.0 0.0.0.0 0 3.4. 00|3.4 0 2.9 10 2.9 0.0 1.0 0.0 0.0 00.00 0 0.0 0.0 0.0 2.0 0.0 0 0.0 0,0 0.0 0 0 0 0 0.0 00. 0.0 0. 0 0.0 0 0.0 0.0 2 0.0 11. 8. 0.0 11.8 0 0.00.0 e 2 6.9 0.0 0.0 0,0 0.0 0.0 0.0 0.0 6.9 2 0 5.2 0.0 5.7 31.5 0.0 375 0.0 0.0 3.4 3.4. 2 2.9 35.3 5.1 8.6 6.2 0.0 1.2 0.0353 24.1 0.0.24.1 25.2. 0.0 25.1 0 2 12.5 0.0 12.5 3 11.4 0.011.6 6 20.7 0.0 20.1 4. 4 11.40.0 11.4 3 3 18.1 0.0 18.7 1k TABLE 17. 94.1 5.9100. 123 6 29 79.3 20.1100. 30 5/35 185.114.3 100. 16 16 100.00.0100. A34 EVALUATION - DE UNIT SIGHTINGS JIGNTING RELIABILITY GROUPS 1948 EXCELLENT 6000 DOUBTFUL PooR Number Per Cent Certain Doubtfull Total Number Per Cent Number Per Cent Number Per Cent Certain | Doubtful Total Certaia Doubtful, Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 3 10.0 5.0 15.0 6 5 1.8 4.8 21.4 4 // 350 20.0 55.0 10 5 15 19.6 9.8 29.4 10 4 10 8.1 5.413.5 0 0 0.0 0.0 16 13.5 21.6 351 2 112.5 25.0 315 2 10.0 10.0 3 3 5.9 0.01 9 4 13 12.2 5.4 112.6 12.5 0.0 12.5 0 0.0 0.0 0.0 5.0 00 2 3 3.9 5.0 2 3 2.0 2.0 5.9 5.9 20 0.0 39 5.2 0.0 0.0 0,0. 0.0 0.0 00 00 0 0.0 0.0 0.0 0 0 0 0.0 0.0 00 0 2 3.9 DAD 3.9 117.6 25.0 25.0 0 0.0 0.0. 0.0 0 1. 2.0 0.0 2.0 0 0.0 0.0 0.0. 0 0.0 0.0 0.0 3 14 TABLE 3 15.0 0.015.0 0 9 17.6 00 174 0 3 41 00 41 0.0 0.0. 0.0 1 4 5.9 2019 6 6 00 81 81 0 0. 0 1. 125. 0.012.5 1 12.5 0.0 125 6 20 10 0 30011001371451172.627.4100. 42 32 24 56.8:43.2.100. 8 15.0 25.0100. 435 EVALVATION OF UNIT GROUPS 1949 SIGHTINGS BY SIGNTING RELIABILITY EXCELLENT Number Per Cent Humber G00D DOUBTEUL Per Cent Number Per Cent PoOR i.umber Per Cent Certain Doubfful Total Certain | Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0 5 0.0 0.0. 0.0 2 L 21 38 11.5 0 4 52 00 5.2 12 25.0 35.0.10.0 22 23 1.9.42. 3144.2 17 21 38 22.1 27.3 49.4 0 5.0 0.0| 5.0 901 11.5 21.1 9/1 1.31 10.4 00 0.00.0 0.0 0.0 0.0 0 0 0 0.0.0.0 0.0 0.0 5.05.0 0.0l 0.00.0 2 24. 0.0 2.4 0.0 0.0 0.0 0.00.0 0.0 0 0.01 0.00.0 0.00.0. 0.0 4 0 4 1.7 0.0 7.7 18 23.4 0.0. 23.4 0.0 0.00.0 0 0. 0.0 0.0 0.0 0.0 0.0.0.0 5 25.0 0.0 25.0 0 81154 0.0.15.4 50 00. 5.0 0 0.0 0.0 0.0 6 / 0 0 7.8 2,07.8 13 0.0 13 3 LL 5 0 11 3 14 4 / 4 34 11 45 80 4112.6. 34.547.1 5 14 5.1 5.2 11:4 0 0 0.0 00 0.0 0 0 00 0.000 0 00.00 0.0 1. 126 0.0.12.4 3 34 0.0 3.4 14. 1k. 1 0.0.16./ 2 4 46 00 44 12 8 20 100400000. 122 / 30 52 42.3157.1100. 55/ 22177 4/28.6 100 51|36/87 58.6.41.4100. 132

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Evaluation -Balloon • I- Astronomical i2. Aircraft |3-Light Phenom. 4-Birds S-Clouds, Dust, etc. 6 insuffic, Into. 7-Psycho logical B. Unichow 9 Other Total Evaluation |0-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds S-Clouds, Dirst, ec. 6- Insuffic. Into. 7-Psychological 8 Unknown 9-Other Total 0-Balloon 1-Astronomical 2-Aircratt 3-Light Phenom 4-Birds 5-Clouds, Dust, etc. 6 Insultic. Into. 7-Psychological & Unknown 19-0 ther Total TABLE ABL EVALUATION DE UNIT SIGHTINGS BY SIGNTING RELIABILITY GROUPS, 19.50 EXCELLENT 6000 DOUBTEUL POOR Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtul| Total Certain | Doubtful' Total Certain Doubthil Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Tolal Certain Doubtful Total Certain Doubtful Total 0 4 114. 00 11.4 5 1 17.114.3 31.4 / 3 5.7 2986 0 0 0.0 0.0 0.0 3 18 0 5.6 3 22 353 14.848.1 2 16.2 54 216 9 10.8 3.4 144 4 16.2 10.8 27.0 12 12 10 13 144 12 151 4 10 11. 1 1.4 18.5 2 1 135, 5.4.18.91,7 2/20.5 4.8.253 0 0 00. 0.8. 00 0.0 0.0 0.0 0.00.0 0 0.0. 0.0. 0.0 0,0 0.0 0.0 0 0 00 0.0 0.0 0.0 0.0. 0.0 - O a 0.0 0.0; 0.0 0.0 0.0.00 0 0 00 00 0.0 4 0 4. 11.4. 0 0.0.11.4 / 1.9 0.0 1.9 0. 0.0 0.0. 0.0 1.0 0.0. 00 0. 12 34.3. 0.0,34.3 10 -10 18.5 0.0. 18.5 4 6 0 4 10.8 0.0 10.8 17 0 0 00 0.0 0.0 2 0 6 16.2 0.0.16.2 16.214 129. 00 2.9 4. 1.9 5k 1.5 1 2 21 27 54 3 0 0 / 0 17 2 14 4 0.0 0.0 0.0 20.5 00. 20.5 2.4 0.0.2.4 16.9 0.0 16.9 3.6 1.2 4.8 29 35/82.9 17.1 100. 39 15 54 122 218100. 28 9 31 451. 24.3:100. 74 9 83 89.2 10.8.100. TABLE A 31 EVALVATION OF UNIT SIGHTINGS BY SIGATING. RELIABILITY GROUPS 195L EXCELLENT Number Per Cent Certain Doubtful Total Certain Doubtful, Total Certain 6000 DOUBTFUL PooR until Total Certain at Tol Cotan Duti Total Cotan col Trail Corin outer Total ceran eat Toda 0 5.9 0.0. 5.9 4 / 5/1.1 2.813.9 2 2 4 4.3 2 5. 17. 6 11.8.29.4 12 4. 16 33.3 11.1.44.4. 3 3 4.3 8.4 2 2 54 00 5.4 6.4.12.8 3 5 8 21 13.5 216 4. 11.6 5.9. 235 7. 19.4 0.019.4 4.3 8.5.12.8 4 7. 10.8 000 0,0 3 0 81 18.9 0.0 4.0 0.0 0.0 / 43 2114.3 D. D 00. 0.000 0 0 00 0,0. 0.0 0.0 2.8 2.8 0 0.0 0.00.0 0 00. 0.000 0 0.0 0.0. 0.0. 0.0.0.0 0. 0.0 0.0 0.0 0.00.0 0 0 0.0 0.0 0.0 8 110 0.017.0 0 0 0 | 0.0 0.0 00 0.0 6 16. 2. 0 35.3 0.0.,35.3 19.4 0.0. 19.4 14 0. 16 34.0 0.0 34.0 0.0 0.0.16.2 0 0.0 0.0 0.0 0.0 0.00.0 2 2.1 2.1 4.2 0.0 0.0 0 5.9 0.0 5.9 0 0 00 0.00.0 2 0. 2 43 0.043 0 24.3: 0.0 24.3 5 5 :13.5.0.0.13.5 14 3/11/82.4176 100.1 30 TABLE A38 4 36 83.316.7100 | 36. 11/47/16. 4. 23.4.100. | 29| 8 37 /78.4|21.6.100. EVALUATION GROUPS OF UNIT SIGHTINGS BU SICHTING RELIABILITY 1952 EXCELLENT 6000 DOUBTEUL PooR Certain Doubtil Total Ceran oco/ Total Certain outral Total Certain Danal Total Certain Dust Toil Certain escortil Tetal Certain Donate Total Certain out l Total // 10- 2/ 8.2 15 15.7 68 4311110.5 6k 17.1 55 54. 111 8.1 3.8.17.5 31 .2L 52 10.1.6.2 6.2.170 8. 25 12.7 6.0 18.2 48 43.141. 15.1 66210.18 32/10 12.3 5.1 17.4 26 12. 15.0 8.5 23.5 15 31 11.9 11.2 23.1 2 2 12 146 92 7 24 146. 11. 1. 11.422.5 88180 14.513.9 28.4 31 21 52 10.16.2.170 15 00 15 815 1.2. 2.3 12 9 21 1.9 3 0.5 1.4 3.3 5 1.6 10.0 16 20: 0.0.0.0 0.6 0,2 / 0.8 , 0.5. 1.0 0.3 1.0 50 0 20 0.00.0 2 5 1. 0.3 0.8 1.1 2 3 0.1 3 0.2. 0.3 0.5 0 0 00 0.0,0.0 4 30 00 3.0 20 0 10 3.1 0.0 31 44 74 11.7 0.0 11.7 6/ 19.9 0.0. 19.8 0 00 0.000 2. 2 03 2.0 0.3 18 4 22 2.8 0.6 8 2.0 0.72.7 44 3.4 2 7 44 32.8 0.0 32.8 171 011/ 263 0.0 26.3 84 0 86 13.6. 0.0 13.6 43 0 43 14.1 00 14.1 1, 52. 0.0,5.2 26 5 31 4.0 0.8 4.8 19. 101 2 21 30 0.3 33. 9 9 0.0 2.9 3.9 33134 75.4 244100. 470179 649.124.21.6100 1438 196 634/49.031.0.100. 225. 80 305173.8 26.2100. 133

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Evaluation Lo Balloon • 1-Astronomical ! 2-Aurcraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. Etasultic Into 7-Psychological B- Unkown 9 Other. Total Evaluation 0-Balloon I-Astronomical 12-Aircratt 3-Light Phenom. 4-Bids i5-Clouds, Dust, etc. 6- Insuffic. Info. :7-Psychological 8-Unknown 9Other Total Evaluation 0-Balloon I-Astronomical 12-Aurcraft 3-Light Phenom. 4-Buds S-Clouds, Dust etc. 6-Insuffic. info. -Psychological 8 Unknown g-Other Total Evaluation o-Balloon I-Astronomical 2-Aurcratt 3 Light Phenom. 4-Birds S-Clouds, Dust, elC 6 Insuflic into. 7-Prychological sother Total TABLE AS9 EVALUATION OF . OBJECT SIGHTINGS BY SIGHTING GROUPS, ALL RELIABILITY EXCELLENT 6000 YEARS DOUBTFUL POOR Number Per Cent Tante Per Cent Number Per Cent Number Per Cent Certain Doubtul Total Certan | Doubitul, Tolal Certain Doubiful Total Certain Doubthul| Total Certain Doubtful Total Certain Doubttull Total Certain Doubtful Total Certain Doubtful Told 17. 8. 25 8.0 38 111 83 44 127 160 58 16.8 23 57. 13/ 22 7316.5 34 22 56 78 5./ 17,9 32. 2052 1500 9.4 24,14108 _65 174 143 87 23.0 88 25 16 4/| 11.7, 66 154 111 83 194 46 53 99 10.6 12.2. 22,8 _ 75.192 89 2 0.9. _ 77/66 11.8 10.2 220 109. 89/98 137 112 249 42 27, 69 12 15.9 0.8. 0.9 1 18 12 12 24 14 9 23 18 11 2,91 2 2. 0.0 0.9: 0,9 8 05 05 10 6 _ 3 9 08 0,4 12 07. 0,7 0 00 00 0.0 5 7 03 0,7 10 21 3 01 0,3 04 0 9 0 0.0 0.0 00 4.21 0.0. 44.2 27 0 27 36 00 36111 0111140 00140 93 93 2/4. 00 214 0. 0.8. 00. 0.0 4 04 01 05 20 6 26 25 18, 33.12 711 71 33.3 00 33.3 188) 0 108 248 00 24.9 103 0103 130 0.0 13.0 22 0 114 28: 053.3 11.0 // 22 166 00 16.6 52 00 52 31 7 38 41 09 50 22 9 36 34 12 45 16 2 24. 37 18. 55 167. 46 213/254.216/108. 5444/213 1757/21.9 28.1100. 552 242 784 695.30-5100. 1322 113 435 74.0 26.0100. TABLE A40 EVALUATION DE ORJECT SIGHTINGS BY SIGHTING RELIABILITY EXCELLENT GROUPET 6000 194? DOUBTFUL Number Per Cent Number Per Cent Per Cent PooR Number Per Cent Certain Doubtful Total Certain Doubthull Total Certain Doubtful Total Certain Doubthul Number Total Certain Doubtful| Total Certain Doubtful Total Certain Doutthul Total Certain Doubtful Total 71.00: 1/ 2 133 0.013.3 2 2 14.3 0.0.14.3 0.0 2 2.1 1.1 14.3 2 ...0 0 0 0 0.0 00, 0.0. 0 0.0 0.0:0.0 0 0 000 L.7 6.1 0.0 0.0 0.1 0.0 0.0 0.0. 0 0.0 0,0 0,0 0.0 0.0 0.0 0.0 0.0 0.0 214.3 0.0.14.3 6 0.0 400 0. 5. 2. 13 TABLE 2 0. 0.0 0.0. 0.0 5 35.7. 0.0 35.2 217.3 7 1 0.0 14.31 2 MoON 0 0AD0O / 40.0 6.7 213.3 0.0/3,3 3 20.0 0.0 20.0 11 19/92.9 2.1.100. 16 6. 22 722/273100/231 5 28/821/7.9100/15 0 15.10000. 0.0100. A41. EVALUATION OBJECT SIGHTINGS BY SIGNTING RELIABILITY GROUPS - 1948 EXCELLENT 6000 DOUBTEUL Number PooR Certain Doubtful Total Certain| Doubtful| Total Certain Doubtil Tolal Certin | Doubhul Toal Certain Doubtul Total Certain Donati! Per Cent Total Certain Doubtful Total 5.9 5 125 10.422.9 5 9 | 7.1 5.712.8 0 3 4 0 00 0.0 00 1 3, 18.7 8.327.0 23.12.9 20032.9, 0 2 250 375 0 3 6,2 3125 0.0. 62 5.718.6 12,5 0.0125 0 0.0 5.9 13.12.9 2 34.2 2./ 6.3 2 20.0 2.9 2.9 0 0.0 0.0 .0.0 0 0 3. 0 12 TABLE 0 0 / 0 0 0.0 0.0 00 0-0 2 3 2./ 4:26.3 11+4 0.0 1.4 0.0 0.0 0.0 0 0.0 0.0, 0.0 0.0. 0.0 0 0 2 4.2 0 0.0 0.0| 1318.6 6.0 18.6 0.0 00 0.0 1 2. 0.0 2.1 0 0.0 0.0.0.0 8 8116.7 00 167 3 43 0.04.3 0 462218.3 0 6 3 13 8.013 5117/204 294 100.135 13 48 929 271100. 40|30 70/57.1 42.9100. 0 AI / 6 0 225.0 0.0 25.0 000 0.0. 0.0 1 12.5 0.0 125 0 1 125.0.0.175 21 8 125.025.0. 100. A42 EVALVATION... OF OBJECT SIGHTINGS BY SIGNTING RELIABILITY GROUPS 1449 EXCELLENT 7 6000 DOUBTFUL Number Per Cent Per Cent Number PooR Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doublful Total Certain Doubtful Total Certain Doubtlul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Toral 00.0 00 0.0 5 10.8, 2.713.5 4 4 6.9, 0.06.9 5 9. 29.4 23.552.9 1 13 11 2735.137.8 15 27 20.2 25.9466 1 59 00 5.9 5 6 /1 13516.229. 7 812 / 1.713.8 0 01 00.0. 0.0.0.0 3 5 4. 1/.1.1.5.3 23 3414.9 311160 0 00 00 0.8 0.0 2.00.0 100. 5.9 6.9 0 0 0.0 NON 10 6.8 0.0 6.813.6 0.0 3.4 0.0 0.0 0.0 0.0 0.0 0 0 0 5 12 0 0.0 0.0 0.0 23.4 0 0.0. 0.0 0.0 0 0.0 0.0 0. 0.0 8. 00.0 0.0 0.00.0 0.0 3 3 0,0 0/3 72.4 00 0.0 0.0 0.0 0.0.22.4 00 110.8 0.0 0.0 10 0 0.0 0.00.0 0.010.8 3 NNO 5 29.1 0.0 294 4 2 52 0052 10 000000 00 0.0 9122 0.0 0.0 12.2 4./ 0.04. 1013.5 0.0 13.5 0 1 59 00. 5,9 0 0.0 0.0 0.0 0 110.0. 17 4 54 00 5.4 517206299/0017. 2037145.9154.1100. 73 16 16581724127.6100.451. 22171 160.8139.21/00. 134

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Evaluation i Balloon J-Astronomical 2-Arrcraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. 6 Insullic Into. 1-Psychokogical 8 Unknown s Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phanon. 4 Birds 5-Clouds, Dust, etc. 6 Insultic info. 1-Psychologicat 8-Unknown. 9-0 ther Total Evaluation 0-Balloon 1-Astronomical 2-Arrcraft F3-Light Phenom. 4 Birds 5-Clouds, Dust, etc. G Insuffic. Into. -Psychological Unkno sother Total TABLE A43. EVALVAIION DE OBJECT SIGHTINGS BY SIGNING RELIABILITY GROUPS, 1950 EXCELLENT 6000 DOUBTFUL Number Per Cent Certain Doubtful Total Certain Doubtful Total Number Per Cent Number Per Cent PoOR Humber Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul | Total 4 12.5 0.0|125 17.9 0.0 7.9 6 16.7. 3.3|200 9 12 4.3/17.4 8 9.4 15. 6: 25,0 13 23.710.5 34.2 4 3 113.0 8 13.313.3 266 3./ 5.8 5 0.0/6.7 10 13.0 1.4. 14-5 6.2 9.3 1.2 10.5/26. 16.7 9 13.0 5.818.8 0,0 0.0 0,0 0. 0.0 0.0 1.0 0.0 0.0 0.0 0.0 0 0.0 0.0 0.0 0 0. 0 0. 0.0 12 0 4 0 12 9.0 0.0 0.0 0.0 0.0 17.5 2.6 0. 0 13.3 0.0 13.3 0 15 0. 0 0.0 0.0 21.7 0.0 21.7 0. 0. 0.0 0.0 0.0 0.l 0 0.0 0. 37.5 0.0/375 9 23. 7 0.0 23.7 5 2.9 2.9 3.0. 01 3.1 2.6 2.k 5.2 5 2 0.0 0.0 16.7.0.0 16.7 3: 3 3.3. 6. 6 13 3 3 18.8 0.0 18.9 4.3 1.4 5.8 26 132/81 2|18.8.100.291 9 38 76.3|23.7 100. 24.6 130 80.0 200/00.160|9 69 /87013.0100. TABLE A44 EVALVATION S/GHTINGS GROUPS EXCELLENT 1951 _BY SIGHTING RELIABILITI _ 600D Number Per Cent Number DOUBTFUL PoOR Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful! Total Certain Doubtful Total Certain Doubiful Tota Certain Doubtful Total Certain Doubtful Total Certain Doulthel Total Certain Doubtful | Total 7.7 0.0 7.7 2 15.4.15.4 30.8 23.1 7. 7: 30.8 4 6 5 125 3.1 15.6 2 2 4 48 48 9.6 0 2:9. 0.02.9 4 0 14/31.212.5 43.7 4 2.4 7.1 9.5 3 5 8.8 14.72:.5 6 18.9 0.019.9 2 5 48 7/11.9 4 2 6 11.8 5.917.7 0.0 0.0 0.0 0: 0.0 2.0 0.0 2 _3.4 2.44.8 0.0. 0.0 0.0 0.01 1.9. 9.0 3.1 0.0 0 0.0 0.0 3. 1 0.0 0.0 0.0 0.0 0 0.0 0.0 0 • 000 0 0.00.0 0.0 0 0. 0 0.0 0.0 0 8 19.0 0.0 19.0 no00 0 0.9 0,0 0.0 0.0 0.0 0.0 0. 0 0.0 2 24 2.44.8 30.01 0.0|30.8 6 10000 0.0 0 0.0 0.0 0.0 0. 0 0.0 0.0 17.6 0.0|17.6 0.0 0.0| 0.0 0 0 0 4 0 6 18.9 0. 0 19815 0.0 0.0: 0.01 0 00 00/0.01 2 0 15 35.7 0.0357 8 0 8 - 23.5 0. 0 23.5 2 48 00 4. 8 5 0 5 14.7 0.0 14.7 10 3 13 769 23.11100. 26 6 132/ 812/88 10832710 42 76.223.8 100. 277 345794 20.6 100 TABLE A+5 EVALUATION RE OBJECI SIGHTINGS BY SIGNTING RELIABILITY GROUPS 1952 EXCELLENT 6000 DOUBTEUL PoOR Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtlul Total Certain Doubtful Total Certain | Doubiful Total Certain Doubttul Tota Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Cerlain Doubiful Total 10 14 16 2 Q 7 8. 3, 5.8 6 14.1 65 37 102 11.2 6. 4. 17.6 54 51 105 9.5 9.0 185 19 1 8 37 8.1. 7.7 15.8 20 11.7 5.016.777 37 114 133 6.4 19.2 59 26 85 104 46 150 21 22/43 8.9.9.418.3 13 29 13.310.8124.168 66 / 34 11.711.4 23 1 86 81 167 15.2 14.3 295 23 / 6.49 9.8 6.8 16.6. 2 1.7, 00.126 8 1 4 10 14 24 12 6 18 21 11 3.2 5 5 21 0. 0. 2.1 0000 0.0 0,0: 0.0 3 0 0.0 9.0 0.0 2 2.5 5 4 05 0.2 7 3 6 0•5 0.5 10 3 09 0.4 1 3 7 03 0.9 1 2 1 3 02 0.4. •6 0 0 0.0 0.0 0.0 0.0 2.5 / 9, 0.01 19 3.3 0.0 3.3: 71 71 12.5 0.012.555 55 23.4 0.0 23.4 0.l 0.02 42 7 0 42 154 266. 0.026669 0 69 12.20.0 12.2 38 0 38 16.2 0.0 16.2 7 5.80.05.8. 25530 43 09 52192 71 3.4 043.8 0 7 700 303.0 9426120(18.3 217/100. 427159/580 72.6.27.4100. 391175/566 691 30.9100. 169 66 235 71.9 28.1100. 135

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Evaluation 0- Balloon 1-Asironomical 2- Aucratt 3- Light Phenon. 4-Birds 5-Clouds, Dust, etc. G Insullic ento. 7-Psychological 8 Unknown 9 Othe Total ryaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4 Birds S-Clouds, Dust, MC 6- Insuffic. Into. 7-Psychological &-Unknown 9 Other Total Evaluation 0-Balloon 1-Astronomical Me Alteal 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological 18 Unknown 9 0ther Total Evaluation a Balloon ¡l-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuflic into. 7-Psychological & Untenana 90mho Total TABLE A46 EVALVATION DE ALL SIGHTINGS FOR ALL YEARS BY NIGHTING RELIABILITY GROUPS , ...MILLTARY OBSERVERS 27. 11 POOR Per Cent Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Cerlain Dowbtful Total Certain Doubtful Total 25 10,5 39 12.6 10 17.5 14.7.27.3 7.7 4.2 11.9 2 1.4 0.0 0.0 0.0 1.4 0.0 0.0 0.0 0.0 10.5 0.0 10.5 2 13 0.0 21.0 1.4 1.4 0.0 21.0 2./ 1.0.91 162 42 204 194 204100. 3181136/514 135265100210) 95/365 74.0 26.0 100.94 49 14/3 65.134.3.100. TABLE A 47 EVALUATION OF ALL SIGHTINGS FOR ALL YEARS BY SIGHTING RELIABILITY GROUPS, CIVILIAN OBSERVERS EXCELLENT G000 LOUBTEUL Poor Number Per Cent Number Per Cent Number Per Cent Numbes Per Cent Certain Doubttu Total Certain | Doubtfull Total Certan Doubtful Total Certain Doubtil Total Certain Douttful Total Certain | Doubthul Total Certain Douhtful Total Certain Doubtful Tota 5 11 58 4.8 10.6 51 29 80 92 57/19 4.6 6112.7 3L 14 50 94/3.713.1 //! 28 163 10.6. 24.2 83 k. 53136.14.9 2.5. 24.4129 95 224 13.8.10.2. 24.0 42 81 11.7 14 45 11.0.22.7 20. 13.5 58.19.31 .13 1.9 13.146 113.244 14.0.12.1.261 40 201 00 10.4 5.2 15.6 3 0 0.0 2 0 3 3 0.8 0.0 0.8 0.5 0.3. 0.8 0 9 0.0 0 00 0.0 8.1 88 0.0 88 23.0 0.0 23.0 0 201 14 115 3.1 0.0 0 31 31 29,8 0.0 12.166 0 66 17.2 0.3 17.5 3 2.9 210 2.11 05 2.4 82/22 104/788/21.2/20.376 376/80 554 67.4 32.4100. 634|297 933 682 31.8100: 302 80 382 78.9 21.1100. TABLE A48 EVALUATION OF ALL SIGHTINGS FOR 1942 BY. SIGHTINGI GROUPS MILITARY OBSERVERS 6000 DOUBTEUL Per Cent Number Per Cent PooR Certain | Doubtful Total Certain Doubtful Total Certain| Doubtful Total Certain] Doubtul Total Certain | Doubtfui Total Certain Doubtful Total Number Per Cent Certain | Doubtful Total Certain Doubtful Total 0 0.0 //./ 0 0 2 22.2 00 22.2 / 0 00 0.0. 0.0 25.0 00.250 2 2 500. 00. 500 9.! 0.0 9.1 0.0 25.0 22.2 0.0 0.0 00 25.0 0,0 0.0 10.0 00. 00 00 0 0 9.1 0.0 9.1 0 0 00 00 0.0 00 00 .0.0 0 0 00.0,0 0.0 0 0 0 00 00. 0.0 0 00. 0.0 00.00 0.0 0 0 0 0 9.10.0 9.1 2 00 0.0 0.0 0 00 00 0.0 50.0 0.0 50.0 0 00. 00. 0.0 0 0 0.0.0.0. 0.0 333 00 333 5 455 0.0 45.5 / 1 00 250 250 0 01 0 00 00 00 / 250 0.0 250 11.1. 0.0. 11.1 3 0 3.273 0.0 27.3 0. 0.00 00 00 0 0 0 00 00 00 0 0 00 00 0.0 / .9 188.9|11.1100 0 11 100.0. 0.0100. 2 21 4 500. 50.0.100 4 4 100.00.0 100 TABLE A 49 EVALUATION OF RELIABILITY ALL SIGHTINGS FOR 1947 BY SIGHTING GROUPS CIVILIAN OBSERVERS EXCELLENT 6000 DOUBTEUL Number Per Cent Number Per want Number Per Cent Number PooR Per Cent Certain (Doubtul Total Certain | Doubtful| Total Certain Doubtful | Total Certain | Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0.0 00 0.0 4.0 00 10 2 0 2 49 0.0 4.9 0 0 00 00 0.0 0 10.01 0.0| 10.0 10 24.0 16.0 40.0 16 3 19 39.0 1.3.44.3 0 k 14.2 0.0 46.2 0.0 0.0 0.0 2 4.0 4.0. 8.01 0 0 0 00 00,00 0 00 0.0. 0.0 0 0.0 0.0 00 a 0.d 00 0.0. 0.0 0. 0 24 0.0. 2.4 0 0.0 0.01 0. 00 00 00 0 0 0 00 00 00 0 0 0.00.0 0,0 0 0.00. 00 0.0 40.0. 0 0 2 0 0 00 00 00 4 0.0. 40.0 140: 00 4.0 2 4.9 0.0 4.9 0 0.01 0.000 1 00 40 4.0 2 0. 8 2 49 0.0 4.9 3 30.0 00 300 6 24.0.00 24.0 2. 8 195 0.015 0 1 17.1 0.0 171 0 0 4 / 2 0 0 00 00 00 Q 0 00 00 00 0 0 00 00 0.0 4 3 2 10 0 4 301 00 .30.1 1. 12. 00. 71 0 2 15. 4 00 15.4 2 20.00.0 20.0 0 4 10 00 16.00 1 000 00 0.0 10 100.0 0.0 100. 19 6 25 16.024.0100. 38 3 41 92.77.3.100 13 0 13 /100.0 0.0.\100. 136

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Evaluation O Balloon I-Astronomical 2- Aircraft - Light Phenon. 4-Buds S- Clouds, Dust, etc. 16 Insuttic into. 7.Psycholofical 8- Unknots 9 Other Total Evaluation iD Balloon Il-Astronomical 2- Aircraft 3-Light Phenom. 14-Birds 5-Clouds, Dust, etc Ginsuftic. into. 2-Psychological B Unknown 9-Other Total Evaluation 0-Balloon I-Astronomical L-Aircraft 3-Light Phenoe. + Birds 5-Clouds, Dust, etc. 6- Insuffic. info. 2-Psychological 8 Unknow Total E valuation O-Balloon / 1-Astrunontical 2-Aiscratt 3- Lipht Phenora. 4-Birds 5 Clouds, Dust, etc. 6- Insuffic into. 7-Psychological 8-Unknown $ Other Total TABLE A50 EVALUATION _ OF ALL SIGHTINGS RELIABILITY GROUPS, FOR 1948 BY SIGHTING MILITARY OBSERVERS EXCELLENT 600 Number Per Cent hunter DOUBTEUL PooR Per Cent Number Per Cent Number Per Cent Certain Coubtful: Total Certain Doubtful; Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total 00 42, 62 11.28.4 107 39.3 2 3 5) 10.5 15.8223 0 000. 0.000 V N 0 3 9 40.0 2 13.3 20.0600 0.0:13.3 0 0 0.0 0.0. 0.0 0.0 67. 6.7 0 00 0.0. 0.0 8 0 9 28.6 34 82.2 2 2 5 10.5 10.5 21.0 0 0 0. 0.0 0.0 0.0 0 134 00 3.2 1243 5.3.36 / 0 L 25.0 0.0 250 2.1 3.610.7 0.0 53|53 0.0 00 0.0 2 3k 0.0 7.2 5.3 0.0 5.3 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 0 0 0.0 0.0. 0.0 0 0.0 0,00.0 0.0 0.0.00 2 2 10,5 0.010.5 2 50.0 0.0 50,0 0 10 0 0.0,0.0 2 0.0 13.3 0.0133 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 00 0.0 0.0 00 0.0 25.0 0.0. 25.0 0.0, 00 0.0 2 21 0.0 0.0 1.1 0.0 00 0.0 0.0 0.0 0.0 5:15/66733.31100. 22 6 28 284 21.4100|12 1 19 /63.2/36.8.100 4 4 100.0 0.0100. TABLE A51 EVALVATION OF ALL RELIABILITY SIGHTINGS FOR GROUPS, Number EXCELLENT 6000. CIVILIAN 1948 OBSERVERS BY 5/GHTING Per Cent Number Per Cent Number DOUBTEN Per Cent Number Pook Per Cent Certain Ooubtfulf Total Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certaia Doubtful Total Certain Doubtful Total Certain Doubtful | Total 2. 3 22.2 111 33.3 5 6 25 12.5 15.0 4 2 11. 1: 22.2. 33.3 5. 7 11 4.8 83 13.1 0 3 0 00. 0.000 6, 11 12,5 15.0 27,5 13 24 37 15.5 28,6 44.1 10.716.7 33.4 0 0 0.0 0.0 00 2 2 5.0 0.0 5.0 4 0.0 0 0 4 0 4 4. 8 4.8 4.4 16.2 0,0 16.7 0.0 00 0 0.0 0.0 0.0 0.0 4.8 4.8 0 2.5 2.5 00 0.0 0 0 10.0 0.0. 0.0 0.0. 0.0. 0.0 0 0.0 0.0 0.0 0.0 0.0 0. 00 00 0.0 0.0 0.0 0.0. 0 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0 2 2 5.0 0.0 12 1/2 14.3 0.0.14.3 / 0.0 0.00.0 5,0 / 16.7 0.0 16.7 0.00.0 0.0 0.0 2.5 0.0 3 0 0.0 0.00.0 3. 333. 0.0.33.3 14 0 2.5 00 0.0 0 0 14 35.0 0.0 35.0 1.1 0.0 7.1 16.1 0.0 16.7 0.00.0 0.0 / 2, 3 25 5.0 1.5 0.0. 21 21 L 16.7. 0.0.161 3 9.667 33.3.100. 26/14/40/650. 35.0100. 39 45 84 46.4 53.6.100. 5 6 83.3 16.7100 TABLE A52 EVALVATION OF ALL SIGHTINGS EOC 1949 BY SIGHTING RELIABILITY GROUPS, MILITARY OBSERVERS EXCELLENT 6000 DOUBTEUL PoOR Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubthul Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total Certain Doubtful Tota 0 0.0 0.0 0.0 2 3 50 2,5 2 0 0 0 3 5 118.17.1 29,5 2 1.5 4, 4.930.0 49 0 / 3.3 0.0 33 26 28 5.0 65.0 70.0 0 0.0 0.0 0.0 0 3 00 75 75 0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 5.9 0. 0.0 5.9 0 00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0. 0.0. 10.0 0.010.0 0. 00. 0.0. 0.0 0 0.0. 0.0.0.0 0 353. 0.0. 35.3 5 2 2 5.0 0.0 5.0 29.4 0.0 29.4 0 0.0 0.0. 0.0 24 2 0 4 0 9 2 3/ 55. 29.3. 378 67.1 18 2/ 10.0 8 2.4 60.010.0 1.3. 9.1 3 10.0 0.0 10.0 0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0.0 0.0 0 4.9 0.0 4.9 0 0 00 0.0. 0.0 0 9 110 00 11.0 0 0 5 0 0.0 0.0. 0.0 0.0 0.0 0.0 0 0.0 0.0. 0.0 0.0. 0.0 10.0 0 0 00 0.0 0.0 0 2 24 00 24 0 5. 16.7 0.0 16.1 0 0 00 0.0 0.0 13 TABLE 4 1 17 76.5 23.5100. 10 30 40 25.0 75.0 100. 45/31 82|54.9 45.1 100. 112118 30 40.010.0100 A53 EVALUATION OF ALL SIGHTINGS RELIABILITY FOR 19.49 SIGHTING GROUPS, CIVILIAN OBSERVERS EXCELLENT G000 DOUBTEUL Humbes Per Cent Number Per Cent Certain Doubttul Total Certain Doubtful Total Certain Doubiful Total Certain | Doubthl Total Number Per Cent humber POOR Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0 0 00 000.0 3 8.8. 2.9 11.1 3 9 50 25 15 0 0 00 0.0 0.0 5 11 13.3 278.61.1 10 2.9 24. 4 32.3 23 28 51 19.2 23.3 415 13 11 24 24.1 20.4 44.5 4 0 4. 22.2 0.0 22.2 5.11 17.6.14.7 14.7323 5 11 26 11.5 9.2 217 . / 2.18 18 36 0 0.0 0.0 0.0 0 0.0 0.0 0.0 0 0 0 0.0. 0.00.0 0 0.0 0.00.0 0 0 0.0 0.0 0.0 4 0 0 00 0.0 0.0 0.0 0.00.0 0 4 33 06 33 0 00 00 00 0. 0 0.0. 0.0 0.0 0 0 0 00 0.00.0 0 00 00 0.0 0 0.01 2, 0 5.9. 0.05.9 0 0 17 14.2 0.0 14.2 9 16.7 0.0 16.2 0.0 0.0. 0.0 2 11 00. 0.0 0 0. 00. 00,0.0 0 0 00 0.0 0.0 3 O. 3 56 00 5.6 3 16.2. 0016.2 6 0 6 11.1 00 172 12 0 12.10.0 0.0 10013 0 00 0.0 0.0 0 0/13.24.1 0,0 241 0. 0 0.0 00.00 1 0.8 0.0 0.8 3156 0.056 13 5|18.12.221.8 100|18 16 34/590 47.01100. | 142/120/65.0 35.0|100.| 42 12 54/72.8 22.2/100. 137

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Evaluation 0- Balloon 1-Astronomical 2-Aucratt 13- Light Phenom. 4-Birds §-Clouds, Dust, etc. G- Insuffic Inio. 7-Psyctological &- Unknown 9 Other evaluaten iC-Balloon 1-Astronamical 2-Aiscraft 3-Light Phenom 14-Bitds S-Clouds, Dust etc 6 Insuffic. Into. 7-Psychological 8-Unknown 9 other- Total Evaluation 10-Balloon [1-Astronomical 2-Aircraft 3- Light Phenom. 4-Bizds S-Clouds, Dust, etc. 6- Insuffic. Into. 7-Psychological 8-Unknown 9-0thes Total Evaluation 0- Balloon 1-Astronomical 2-Aircraft 3 Light Phenom.. 1-Birds 5-Clouds, Dust, etc. 6 insuffic Into. 7-Psychological B Unknown 9 Other Total LABLE A54 EVALVATION - 0F ALL SIGHTINES FOR 1950 BY SIGHTING PELIABILITY GROUPS I MILITARY OBSERVERS ExCELLENT G000 DOUBTFUL Certain Doubtiul! Total Number Per Cent Number PoOR Number Per Cent Number Per Cent Certain Doubiful, Total Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Douttful Total 3 3 2.4 0.0 9.4 13.3 0.0 3.3 9 10 200 2.2 22.2 2 1.1 11 14.2 4 10 18.81 12.5 3.3 0.0 0.0 0,0 0.0 0.0 2.0 10 2 0 16 9 4 335.20.0 1533 20,0 0.0 20.0 2 14.3 4713.3 20,0 0.0 0.01 0,0 0.0 8.9 0.0 8.9 2 2 0.0.14.3 14.3 0.014.3 0.0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 00 0.0 0.0 0.0 0.0 0 0.0 0.0 0.0 3 0.0. 3./ 3.3 0.0 3.3 0 0.0 0 2 4/.4 0.0 4.4 0.0 0.0. 0.0 0.0 0.0 0 0,0 0.0 0.0 11 12 532 0.0.53,2 3 0 10.0 0.0 10,0 15 0 0.15 33.3 0.0. 333. 0 0 5 0 0 0 00 0.0 0.0 2 14.3 0.0 14.3 00. 0.0 0.0 5 3.1 0.0 31 3 0.0 10.0 10.0 2 3 5. 4.4 1357 0.0. 35.2 47 11.1 2.1 0.0 7.1 28. 4: 32 875.125100 17 113/30 56.743.3100 37 8 14582.217.8 100\13 1 14/92.9 2.1 100. TABLE 155 EVALVATION _ DE aLL SIGHTINGS EOR 1250 RELIABILITY GROUPS, CIVILIAN OBSERVERS SIGHTING EXCELiENT 6000 DOUBTFUL Number Per Cent Certain Per Cent Number Per Cent Number PoOR Number Per Cent Doubtil Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubkful Total Certain Doubtful Total Certain Doubtsul Total Certain | Doubiful Total 0 5.9 0.0.5.2 2 2 3 6. 9 00.1.9 $ 13. 115. 5.1 16k 8 11.5 1.6 131 4 5.9 19.6.23.5 10 2 12:345 4.9 41.4 2 8 11 -3.910.314.2 2 13.13.3 16.4 5 23.5 .5.9 29.4 4 L 5 13.8 0 3.5 17.3 10 0.0 17 5 12 218 64 282 10 0 10 .16.4 0.016.4 0.0 0.0. 0.0 0.0 0.0 0 - 0 00 00 00 00. 00. 00 0. 0. 20 00 0.0 0. 0 0 0.0 0.0 0.0 0, 0.0 0.0 0.0 0.0 00 .0.00 0.0. 0.0 0.0 0 01 0 00 0,0 110.0 3: 311.6 0.0. 17.6 0.0 0.0 0 0. 0 00 0023 0 23. 245 0.0 .245 0 0.0 0.0.0.0 0 0 00.0 - 0.0.0.0 9 0.0 0000 0 17 4 0 - 0.0 00 00 0.0 0 17 27.9 0.0 27.9 0 4 66 0.0 6.6 $ 235, 0.0.235 31.0 00 31.0 1 01 190 00 40 0. 0. 0.0 00 00 L 135 0.0 35 1 2 13 13 2.6 0 11 18.0 0.0 18.0 1 16 00 16 13 4 17175.23.5.100. 26. 3 29 89.610.4100. 60 18 78 66.9 23.1100|58 3 61 1 95.1. 4.9.100. TABLE A5 k EVALVATION OF ALL PELIABILITY GROUPS, 5/6HTINGS MILITARY FOR 1951 BY SIGHTING OBSERVERS EXCELLENT Number Per Cent 6000 DOUBTEUL POOR Number Per Cent Number Per Cent Certain Doubtil Total Certain Doubtful Total Certain Douttful Total Certain Doubtll Total Certain Doubtful Total Certain Doubtul Total Number Per Cent Certain Doubttul Total Certain | Doubtful Total 2. / 0.0. 7.1 / 517.4 4. 3. 21.7 2 43 4.3 8.L 2. 4.8 4.8 96 / 1. 114.2 2 11 34,2 8.7. 419 2 4.3 4.3 2 3 9,5 4.8 14.3 3. MASON 0 2 3 7.1 21.4 0.0 21.4 0 .0 4 4 17.4 0.0 17.4 / 2 4.3 4.3 8.6 2 00000.0 0 0 Dя 0.0.00 11100 4.3 0 0 0 0.00 0.0 4.3 0 0.00.000 0.0 43|4.3 0 0.0 0. 0.0 0.00.0 0.0 0.0 0.0 0 0 0 0.0 0.0. 00 00.0 0.000 2 0.0 0 3 0 0 5 95 14.3 23.8 0 00 0.000 0 00 00 00 0. 00. 00 0.0 0. 00.0 0.0 0.0 0 2 8.1 0 0 0.0 0.0 0 0.0 8.1 0 0. 0.0.00 0.0 0.0. 0.00.0 0 0.0 0.0 00 0 0 0.0 00 0.0 0 1 214. 0.0 214 2 0 2 8./ 0. 0.0 8.7 12 0 12 52.2 0.0 52.2 9 0 9 429 00 42.4 1 71 00 4 0 0 0 00 00 00 2 0 2 81 00 87.2 0 2 95 00 95 13 JABLE 14/92-9/ 21 100.1 19 1 23 826. 124100. 19 4 23 182.617.4 100. | 16/ 5:21 1.2/23.8 100. А51 EVALUATION OF ALL SIGHTINGS. RELIABILITY FOR 1951 BY SIGHTING GROUPS, CIVILIAN EXCELLENT G000 OBSERVERS DOUBTFUL Page Per Cent Numbes Per Cent Number Per Cent Number Per Cent Certain Doubtful| Total Certain Doubtful Total Certain Doubttu! Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Totall R. 2 0 00 0. 0.0 0.0. 0.0 0 56 0.0 56 / 2 2.9 2.9. 5.8 14.5 00 4.5 3 50.0, 250 15.0 3 1. 22.2 16.7 389 5 5.7 8.6 14.3 / 0.0. 25.0250. 3 16.7 00 167 29 86 11.5 0 00.00. 0.0 0 0 00 00. 00 57, 0.0 5.7 0 00 00 00 00. 00. 00 0 0.0 00 00 0 0 00. 00. 0,0 00 00 0.0 0 0 00 00 00 4 2 0 5 18.2.22.7 409 91 00 91 0 0 0.0 00 00 0.0 0.0 0.0 0.0 00. 0.0 00. 00.00 0 0.0 0.0.00 00. 0.0. 0.0 0. 0.0: 00.00 NO 1. 200. 00:00 0.00. 00 00 2 2.9 2.9 5.8 38.8. 0.0.38.8 13 372 00 37.2 000 5 22.7 00 22.1 00 0.0 00 0 0 1.0 0 9.1 0.0 9.1 0.0. 0.0. 0 100 0.0 00 0 00 0.0.00 3 13.6 0.0 13.4 21 2 4 50.0/50.0000 115 3 18/83.3167 100. 127 8 35/71.1 22.8100. 17/5 22 77.3/22.1.100 138

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0- Balloon 1- Astronomical 2-Aircraft 13-Light Phenom. 4-Birds 5-Clouds, Oust, etc. i6 Insuffic Into. 7-Psychological & unknown S- Other Total j0-Balloon | 1-Astronomical 1z-Aircratt /-Light Phenom 4-Buds S-Clouds, Dust, ec. 6 Insuffic. Into. -Psychological & Unknow 9. 0ther Total TABLE A58 EXALVATION. ALL SIGHTINGS FOR RELIABILITY 1952 BY SIGHTING GROUPS. MILITARY OBSERVERS EXCELLENT _ 6000 DOUBTEUL Number Per Cent Number Per Cent Number PooR Ramire Per Cent Certain Doubttul! Total Certain | Doubtful! Total Certain Doubtful| Total Certain Doubtful Total Cerlain Doubtful Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total $ 2/ 0 15 6.8 6.012.8 34. 29.63 82 2.6145 21 18 39 109 94.203 10 8118 14.3 11.4 25.7 19 4.4 6.8 162 53/ 22. 15 5.819.1 2 12 33 18.010.3 28.3 13 2.2186 25 13.2 37 8 45 193 4.2.23.5 28 53 1.5 7313.8 12 12.28 15.1 9.4 5.2,14.6 6 4.3 4.3 8.6 0 0.01 0,0 0.0 0.0 3 4 08 0.3 L 10.51 0.0 0.5 2.0 2.9 0 0.0 0.0 3 3 0.8 0.0 0 2 4.7 0 0.0 0.0 0.0 0.3 0 2 0 42 1.7 0.0 1.2 0.0. 0.0 0.0 35.9. 0.0 35.9 143 5/0.0 5.1 23 0 8 0 0 0 143. 2 25 0.8 2.1 2.11 2.1 0.0 0.0 0.0 3740.0 37.4 6.005.65 2.9 42.1 00 21 0.e 0.0 0.0 2 / 3 10 0.5 15 4.2 00 42 0 9 a 0.0 0.0 00 0.0. 12.9 0 53 0. 2.0 2 12.7 0.0 00 2 0.0 2.9 2-4 0 53 274 00 276 0 11 57 00 5.7 10 0 10 114.31 0.0 14.3 10 1000. 14.3 14.3 70 271117/16.9.23.1100. 299 83 382/783.21.7 100. 155 37 192/801 19.3/100. 45 25 70 164.3 35.7100. TABLE A59 EVALUATION OF ALL S/GHTINGS FOR 1952 BY SIGHTING RELIABILITY GROVeS, CIVILIAN OBSERVERS EXCELLENT Humber Per Cent Goạ0 DOUBTEUL Number Per Cent Per Cent POOR Number Number Per Cent Certain Doubtful Total Certain Doubtful! Total ¡Certain Doubtful Total Certain! Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain| Doubtful Total Certain Doubtful Total 4 81152 23 16 10.5 5.416./ 40 42/82 701 13 41 12.4 5.818.2 0. 10 2 0 2 0 0 0 13.1 13. 1. 4.31 0.0 0.0 2 4.3 0 0.0 18 139.4 22 0.013.1 8.2 21.8 43 52 52 23.183 125 50 175 28 28. 85 13.9 6.8.20.7 12 29.101 13 23 36 10.2 16.0 46. 123 13.9 16.1 30.0 94 90 184 16315.232.0 26 19 45 5.8 14.5 8.4 19.9 0.0 43 1. / 4e 2 0.2 47 2.2 9 20 19 16 3.5 3 1.3 0.0|1.3 0.0. 0.0 0.2 0.4 3 3 0,5 1.0 1.5 3 09 04 13 0.0. 0.0 10 D.2 2.2 24 2 2 0.3 0.3 0.L 0 10.0 0,0 0.0 0.0 4.3 14 0 14 2 3.4 0.0 34 11.123 0.0| 0.0 2 h5 0.0 0,5 18 3) 22 21 0.9 0.012.3 52 00 394 85 3.8 e L 52 23.0. 0.0 23.0 1 - 27 0.431 0 81 . 85 20.7 0.0 20.7 47 0 61 47 0.0 11.7 31 37 164. 0.0164 00 2.2 4 12. 20 1.0 3,0 2. 18 28 0.3 3.1 2 0.0 0.9. 0.9 38 846/82617 4100 27211381410 66 333.7100 394181 5756685 31.5100.167|59 226/73.9 26.1.100. 139

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TABLE A6D REPORTED COLORS OF OBJECTS SIGHTED B4 YEARS , ALL SIGHTINGS ALL YEARS 1947 1949 19,50 1951 1952 NUMBER lERCEM NUMBER ER CENT NUMBERPERLENT NUMBER PER CENT NUMBER PERLEM NUMBER PER CENT NUMBER PER CENT WHITE OR GLOWING WHITE 175 242 28 23.9 45 22.0 238 12 23.5 38 23.8 496 24.6 METALLIC 549 17.2 24 20.5 36 17.6 60 15.2 81 26.5 26 16.3 322 15.9 COLOR NOT STATER 436 13.6 ORANGE eR GLOWING ORANGE 30 3L 9.9 6/ 19.9 25 12.4 298 25.6 15.1 39 15.6 250 9.3 6 5.1 21 10.2 24 6/ 2.3 17 10.6 223 11.0 RED OR GLOWING REO 253 1.9 6.0 14 68 31 9.4 21 8.8 10 6.3 158 1.8 GREEN OR GLOWING GREEN 224 1.0 0.9 15 7.3 64 16.2 13 4.2 4.4 124 b./ LIGHT GEOW COLOR NOT KNOWN 219 1.8 5 4.3 14 k.8 19 4.8 15 4.9. 5.0 158 7.8 YELLOW OR GLOWING YELLOW 208 6.5 8 68 12 5.9 23, 5.8 2.9 /1 6.9 145 7.2 BIVE eR GLOWIRIA BLUE 145 4.5 4 3.4 21 5.3 3.6 93 4. L BLACK OR GLOWING BLACK 67 2./ 4 3.4 8 3.9 5.0 1 3.4 8 2.0 6 2.0 3.8 36 1.8 LIGNT GION; INDETERMINATE (OrC 13 0.4 e 0.0 2 1.0 5 1.3 0.0 0.6. 5 D.3 VIOLET OR GLOWING VIOLET 8 0.3 2 0.0 0.0 0.0 0.6 4 0.2 GLOWING. GRAY 8 0.3 0.0 e / 0.3 1.0 0 0.0 0.3 2 1.3 4 0.2 TOTAL 3201|100. 1 111/100.205 1 100. 1 395/100.1 306/100 160/100. 2018 100. TABLE Abl WITTE DR GLOMIRO WHITE METALLIE COLOR NOT STATER DRANGE DE GLOWING DRANGE RED DR GOWING REL GREEN OR GLOWING GREEN WIGHT GLOw, COLeR NeT KReWM YELLOW UR GLOWING YELLOW BEVE De GLOWING BLUE BLACK. OR GLOWING BLACK LIGHT GEOW lADETERMINATE COLDe VIOLES OR GLOWINS VIOLET GLOWING GERY. TABLE Ab2. WILLTE OR GLOWING WHITE METALLIE COLOR NOr STATER ORANGE OR GLOWING DRANGE REN.OR GLOWING RED GREEN OR GLOWING GREEN LIGHT GLOW, COLOR NOT KrOWM YELLOM OR GLOWING YELLOW BLUE OR GLOMINO BLUE BLACK DR. GLOWING BLACK. LIENT GEOW, LADETERNIMATE COLGE VIOLET eR GLOMINE VIDLET_ SLOWING GRAY TOTAL REPORTED COLORS OF OBJECTS SIGHTED BY YEARS, UNIT._ 5/6HTINGS ALL YEARS 1947 1948 1949 1950 19,51 1952 NUMBER PERCENT NUMBER PERLENT NUMBER PERCENT NUMBER PERCENT NUMBERPERCENT NUMBER PERCEM NUMBEe Ae CENT 610 23.9 27 27.8 24 17.0 51 24.2 50 23.9 33 24. 1 417 24.2 422 16.5 22 22.1 30 19.6. 37 15.1 40 325_12.7 22 22.7 23 15.0 24 11.0 4/2 19.1 25 18.2 268 15.L 20.1. 23 16.8 18.9 11.0 253 9.9 3.1 16 10.5 18 7.6 6. 2.9 14 10.2 196 203 7.9 4.1 9 23 4.4 11.4 4 5.9 9.7 21 10.0 6 140 8.1 175 118 6.9 1.0 15 4.! 9,8 26 11.0 10 48 5.1 116 13 6.7 7.0 10 4.5 5.5 5.3 5.1 133 185 7.2 1.2 10 6.5 16 6.8 9 4.3 8 5.8 1.2. 135 4.7. 8 5.8 82 1.8 121 4.7 3.1 3.9 5.3 54 2.3 4.1 6 11 2.5 6 4 8.8 2.9 33 1.9 10 0.4 7 0.3 0 0 0.0 2 3.9 1.3 0 2.9 0.8 0.0 / 0.1 5 0.3 0.0 0.0 0.0 2 1.0 0.1 4 0.2 0.2 0.0 0.0 0.4 0.5 0 0.0 0.2 2554.100. 91 1100. 153|100. 236 100. 209 1100. 1131 100. 1722100. REPORTED COLORS DE OBJECTS SIGHTED BY YEARS, OBJECT SIGHTINGS MA ER WM194 en Nure de con 194 en V41950 a Im 195 a De 1952 m 511 23.5 22 27.8 25 17.5 43 23.1 44 26.0 2722.3 356 23.7 389 11.7 20 25.3 271 12.3 18 22.8 29 20.3 34 18.3 36 21.3 22 18.2 248 16,5 21 14.7 19 221 10.0 3 3.8 16 11.2 15 10.2 31 18.3 22 18.2 160 10.1 8.1 3.0 12 9.9 170 179 8.1. _3 3,8 5.6 19 10.2 16 9.5 5.0 127 11.3 8.5 144 6.6 0.0 12 8.4 11.3 8 4.1 1 5.8 94 6.4 152 6.9 4 5.1 10 7.0 12 6.5 3 3.8 9 8 4.7 5 4.1 113 1.5. 15.9 1.2 k.3 12 6.5 2.5 3.5 2.7 4.7 5.8 120 8.0 93 4.2 2 3.6 5.8 68. 4,5 57 2.6 5.L 4.2 0.3 0.0 1.4 2.7 5 3.0 3.3 33 2.2 5 0.2 0.0 0.0 0 0 0.0 0.0 0.8 03 0.0 0.6 0.8 3 0.2 5 0.2 0.0 0 0.0 0.5 0.6 0.0 3 0.2 21991100. 19 1100. 1 14/3 100. 186|100. 169 1100. 121 1100. 1501100. 140

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Evaluation - Balloon I-Astrononical 2-Arciett 13- Light Phenom. 4-Birds S-Clouds, Dust, etc. & Insuflic into. 7-Psychological & Unknown 9 Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft |3-Light Phenom. 4-Birds 5-Clouds, Dust etc. einsultic. into. : 1-Psychological • 8-Unknown 9-0ther Total Evaluation -Balloon 1-Astronomical i2-Aircraft 3-Light Phenom. 14- Birds i5-Clouds, Dust, etc. - 6 Insuffic. into, : 7-Psychological &-Unknown 19 Other Total Evaluation lo Balloon ; 1-Astronomical 2-Aitcratt 7 Light Phenom 4-Birds S-Clouds, Dust etc. 6 Insullic Ink. 7-Psychological 4-Uaknonn sOther Total TABLE Ak3 EVALUATION. ALL SIGHTINGS FOR ALL YEARS c0 085 REPORTEO 34 TOTALS WHITE OR CELOWING VUMITE Number METALLIC COLOR NOT STATED Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful, Total Certain Doubtful; Total Certain Doubtful Total Certain Doubtful Toial Certain Doubtful | Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfil Total 270/10,450 84. 5.614-0 72 63 140 24 2.04.4 79 39 118 35 12 37 1 25 57 10 08 18 476, 341817 14.9 106 255 116 83/99 36 26 67 11 22 03 03 0.6 41 18 59 13 0.6 19 354 288 642 11.1 9.0 20.1 33.24. 1.0 65 101 08: 15 19 10 29 0.6 03.019 lo w 69/34 30 22 4.2 75/76 32 23 55 42 23 65 13 07 70 8 11 01 03 04 13 2 8 02 0.10.3 25 0.4 0.4. 0.8 3 7 0•1 01 0.2 398. 0 398 93 0.0,9.3 4, 38 0 58 18 00 18 00-4 0.1 0.2 0.3 - 0.0 al su 0.1, 0.1 0.3 0.2 8.1 0.3 010.0 lil a0 0.1 1.9 0.0 1.8 78 2.4 0.024 12 48 12 0.31.5 0 11 03 0.0 0.3 1.3 0.0 0.3 689 0 689 21.5 0.0 315/77 0.122 55 0.0 55 126 0 17 33 8.0 79 13 00 8 03 00 0.3 0113 35 00 3.5 112 35 147 35 1.14.6 28 0 38 0.9 1.0 0.9 0 75 08 00 08 43 0 43 13 00 1.3 2300. 90/3201/719 28/100. 544329773|170 7.2/242418 131 5491314117-2368 68 436 115 3.113.6 GRANGE OR GLOWING GRANGE. RED OR GLOWING RED GREEN OR GLOWING GREEN Number LIGHT GLOW, COLOR NOT KNOWN Per Cent Certain Doubtful Total Certain Doubtfull Total Certain Doubtful, Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Number Per Cent Certain Doubtful Total Certain | Doubtful | Total 18 39 10 76 8.5 0,3 3 0:1 0.0 14 29 491 31.80 0.10 1.51 0.3 10 0.9 1k 7.9 64 39 93 0.8 7.0 33. 1-0 1.0. 2.0 26 0.9 29 58 0.6 99 152 1.8 15 48 67 0.5 0.4 0.9 3.11 31 64 18 44 0.8 14 9 16 0,7 0.3 4.9 26 14 15 05 0.5 26 20 10. 0 10 0.3 0.0 D.3 2 0.1 0. 1. 3 0-1 1,2 0.1 0.0 D.L 52, 18 1.6 4 0.0 0.0 00 4.01 4 8.8 8 0.1 0.2 2i 3 0. 0 0.01 0.2 0 0 0.0 0.1 D 0.0 D.01 0.0 2 00 0./L 0.1 0 0.1 201 0.2 20 0.6 0.0 0.0 D.b 17 - 0 1.5 0 0,3 66 bb 0.0 2.1 0.0. 0.3 2.1 51 0, 51 18 10 0.6 0.0 0.6 15 0, 15 • b 0.5 0.0 0.0 0.0 0.0 0.5 1,6 12 30 0-0 0.5 12 30 4 0.4 00 0.4 3,5 25 00 0.0 0.8 0.0 D.T D. 0 09 31 0.L. 0,0 0.9 00 0.1 1.0 0.1 0.0 0. 0. 0.0. 1.2 0.0.) 1.0 0.2 2341 74 2971 7.01 2.31 9.31193 60253 6.0 149 7.9 116 108/224| 3.6 34 7.0157 62 219 4.9 19 YELLOw On GLOWING YELLOW BLUE OR GLOWING BLUE Number Number FLACK OR GLOWING BLACK Number LIGHT GLON, INDETERMINATE COLOR Per Cent Per Cent Per Cent Per Cent Certain - Doubtfull Total Number Certain Doubtlu! Total Certain Doubtful Total Certain Doubtful | Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfull Totad Certain Doubtfuf Total 18 9 0-6 0.3 39 600 12 0.7 8.9 5 6 0.2 0.3 5 7 12 0.2 04 0 0.1 0.0 0.1 19 48 25. 23 25 2 1 17 42 0.T 0.5 1.3 10 10.30 1.3 0.2 0.1 0.3 D 3 0.1 0.1 0.2 0 0.8 0.3 0.0 0.0 2.3 0.2 3 0.1 0./ 1.2 8.01 0.31 0.2 0. 4 12 8 20 0.1 Q.4 0.2 Д. 6 D./l 0.1 0.2 0.0 0.0 0.0 D.1 0./ 0.2 0.0 0.0 0.1 0.1 0 0.0l 0.0 0.0 0.0 0.1 Q.J 3 0.1 0.1 1.01 0.0 16 0.0 00 0.1 00 03 0.01 43 2 0.5 0.1 0.0 00 0.0 0.0 0.1 0. 43 1.3 0.0. /31 34 5 0.2 0.0 0.2 o.L 0 34 1./ 0 2 0.1 D.0 D.1 0.0 11. 4 12 0 10 0.3 4 00. 0. 012 0.1. 0.4 00 0.0 0.0 00 0.4| 0 D 0.1 0.0 0.1 D.0 d.1 0 2. 01 0.0 01 0.0 0.0 0.0 15652/208| 49 1665106 39 145 33 17 45 46 21 67 14 07 20 713 0.2 0.10.4 VIOLET OR GLOWING VIOLET Number Per Cent GLOWING GRAY Certain | Doubtful Total Certain Doubtful Number Per Cent Number Per Cent Hitmien Per Cent Total Certain Doubtful| Total Certain| Doubtful Total Certain Doubtted! Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful | Total 0.110.1 - 0.0 00 0.1 d./ 0.10. 3 O./ 0.2 0.0 0 D.l 0.1 2010.1 0.0 0.0 0 0,0 0,0 0.0 1.0 1.0 0.0 0.0 0 0 00 D 5 3 0.0 0.D1 0.0 0.1 0.2 0.3 0.0. 0.0 0 D.0 0.0 1.0 0.01 0.01 0 0 00 0.01 DD .00 0.D 0.0 Q D.D 0.0 0.0 0.0 D 0. 0 4 0.1 20 0.1 0.0 0.0. 0.0 0.1 0,3 2 81 02 0l 03 141

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Eraluation 0- Baltoon 1-Astronomical 2-Aurcraft 3- Light Phenom. A-Bists 5- Clouds, Dust, etc. 6 Insuffic info. 7-Psychalogical & Uninown Total TABLE. Ab4 EVALVATION OF UNIT SIGHTINGS FOR ALL YEARS BY TOTAL COLORS REPORIZA Humber WHITE OR GLOWING WAITE METALLIC COLOR NOT STATED Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Cerain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain | Doubtful Total Certain Doubtiul Total 228/51 379 8.9| 5.9 14.8 6/ 50|11/ 242,1 4.5 65 32 97. 2.5 1.338 28 49 0,8 1.9 383 256 639/5.0 10.0 25.0 93 67160. 3,6 2,6 6,2 17 0.30 0.4 0.7 292.235 52711.4 23 9.2 20.6 49 54103 19 2.1 4.0 б 9 88 54 142 3.4 2.1, 5,5 16 16 39 1.1 0.9 48 0.6 11,3 0.6 15 21 53 1.3 0.8 2.1 3 19 32 8 11 001 0.3 0.4 4 0.2 0.3 13 0.0 0.1 0.1 10 0,5 0.4 0.9 4 6 0.2 9.3 / 4 0.1 0.1 0.2 4. 0.2 01. 0.3 3 7 10. 0.1 03 0,4 261 3. 4 0.1 0.l 0.2 L 0.1 0.0 0.1 0.261 10.2 0.0 10.2 54 0, 54 2.1 0.0 2.140 0 40 116 1.0 1.6 36 9 45 1.4 0.4|1,8 8 2 10 0,3 0.1 0.4 8 / 1497 131 9, 0.3 о 497.19,5 0.0 19.5 013/5.1 0.0. 5.184 0.1 0.1 0 843.3 0.0 3.3 92. 28120 36 11 47 19 1 20 0.7 01 0.8 15 6 21 0.6 0,20.8 70 6 21 29 / 0 70 O.1 0.0. 0.1 2,7 0.0, 2.7 0.2 0.0 0.2 2.8 0.0 2.8 6 35 /1 0,2 13 11537 717 25547.9 281 100.423. 187 610 16.6 7323.9315 107422123 42 165 264 6/ 325/0,3| 2.4|2.7 Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4- Birds 5-Clouds, Dust, etc. 6- Insuftic. Info. T-Psychological 8- Unknow: ORANGE OR GLOWING ORANGE Per Cent RED OR GLONINGREO GREEN eR GLOWNS GREEN LIGHT GLOW, COLANOT KIONA Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certainl Doubtitl Total Certain Doubtful Total Certain Doubttul Total Certain Doubthul Total Certain Doubtial Total 16 10 26 0.6 0,4 1.0 10 23 0 0.l 0,0 10 0.5 40 28 2.7 22 6б 1.6 26 48 10 0 10 0.9 1.0 0.4 0,0 1.9 0,4 50 23 21 0,5 0.4 0.9 3 0.1 14 24 0,4 0.9 2.0 0.8 2.8 20 122 12.0 2.7 32 9 46. 1,4 0.44 1.8 17 40 3 0.9 0./ 0.7 1.6 2 0 3 0./ 0.2 0 0.1 0.2 0.0 0.0. 0.0 / 0.7 0.0 0,0 0.! 0.0 0.1 0.0 0.7 0D 5 55 18 0.1 0.3 0 18 3 0.1 0.0 0.7 NN 0 9 55 0.0 0.7 0.2 2.2 0.0 2.2 18 3 35 0.1 0 35 14 0.0 1.4 19 sother Total Evaluation 0-Balloon I-Astronomical 2-Aincraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G- Insuffic. Into. -Psychological B Unknown other Total O Balloon : 1-Astronomical 2-Aisciaft 3 Light Phenora. 14-Birds $-Clouds, Dust, etc. 6 Insuffic Into. 1-Psychological B Unknown s Other Total 127 0.4 0.3 0.7 76 253. 6.9. 3.0 9.9150 9 0.3 0.1 53 203 5.92.1 1000000 17 0.3 0.4 0.721 0.1 0.0 0.0. 0.11 25 46 6. 0.0 ото. 0,0 0.0 00 0.4 0.0 0D 0.0. 0.43 0,0 0.2 0.0 0.0 0.4 3 O.1 0.7 01 0.1! 24 / .24 5 7.9 95 80 175 3.7: 3.1 6.9129. 49 V78 0.8 02 0.0 DID 0.9 0.0 0.9 0.2 5.1 1.0 1.8 0.1 0.3 0.l. 0.1 0,1 0.0 0./ 0.9 0.1 0.0 0.1 0.8 0.9 0,2 1.9. 7.0 YELLOW OR GLeWING JELLOW BLUE OR GLOWING BLUE BLACK OR GLOWING BLACK LIGHT GLOH, INDETERMINATE. COA Number Per Cent Certain Doubtful Total Certain| Doubtful Tolal Number Per Cent Certain Doubtful Total Certain] Doubtful| Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total Certain Dasbtil Total 9 26 0.7 0,4 4 / 0.2 0.1 0,3 5 0,2 0.3 0.5 0.0 0.1 34 22 7 5/ 2,0 5 16 60 212 1,3 V. / 0.1 16 38 0.9 0.7 0.6 0,3 1,5 44 10 9 1.7 0.4 0.6 2.3 0.4 С.Л 0.8 0.4 0.1 0.0 0. 12 О. 19 0.0 0,5 0.8 0,0 0.3 0.0 0.0 3 2 4 2 0.1 0.0 0.1 D.1 0.1 0.2 2 2 0.0 0.1 0.1 / 0 0.1 0.1 0.2 0.0 0.0 C.D 0.0 0.0 0.1 0., 0.0 0,0 0.1 0.1 0./ 0.1 0.0 0.0 0.0 0.0 0.0 15 0.0 0,0 0.0 15 01/ 0.6 0.0 0.6 0.1 00 0.l 0.0| 0.4 0.0 0, 2 01 00 0.1 10 36 3 136|14, 0.0 1.4|29 0.1 C.1, 0.2. 2 0 29 1.7 0.0 / 1 3. 9 0,4 1 4 0.1 0 0.0 0.0 0.0 0.9 0.10.2 0.0 0.0 _ 04 0.0. 0.4 0.0 0.1 2 5 01 01 0.2 2. 0.1 0.0 0.1 0.1 Z 2.00. 0.10.1 0.0 0.0 0.0 113649185/5.31.917.294 49185|5.3|1.917.294 (27.121|3.7 47/40 19/59/1.6 0.723 6 4 10 02. 0.2,0.4 VOLET OR GLOWING VIOLET GLOWING GRAY Per Cent Number Per Ceot Number Per Cent Per Cent Certain Doubtful! Total Certain Doubtfui Total Certain Doubtful Total Certain Doubtful! Total Certain Doubtful Total Certain Doubtlul Total Certain Doubtful Total Certain Doubtful Total 0 0.0 0.1 0./ / 0.1 0.0 0.1 00 0.1 0.1 al L 0.0 D.1 C./: 0,2 0.1 0.0 0.1 0./ 0.0 0.0 0.0 0. L 0.1 C. 0 0. 0.0 0.0 0.1 0.0 0.1 0.0 0.0 0.0 0.0 0 0. 0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 00. 0.0 0 0.0 0.0 / 0 4_3 0 C.0 0.0 0./ 0.0. 0.1 2 0.1 0.0 0.1 0.01 0.0 0.0 0.0 0.0 0.0 7 0.2 0.1 0.31 141216/02/01021 142

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Evaluation lo Balloon I- Astronomical ! 2-Aircratt i3-Light Phenom. 1-Birts S-Clouds, Oust, etc. E Insultic nto. 7-Psycho logical & Unknown sother Total TABLE Ak5 EVALUATION. DE OBJECT SIGHTINGS FOR ALL YEARS BY REPORTED TeTAL WHITE OR GLOWING NHITE METACHC COLOR NOT STATED Number Per Cent Certain (Doubtful Total Certain Doubttul Total Certain Doubt Total Certain erret Total Certain Doubtful Total Certain ebuttu Total Certain Doubtil Total Certain ocentl Total 267/32 339 44 6.015.4 56 45 1012,5 2.0 4,5 56 28 84 25 1.3 38 24, 16 40 93 218 66 58 124 3.0 2.6 5,6 _8 15 03. 04 07 11 9.20 1.1 0.7 1.8 274.765.47912,5 0,5 1.3 Q4 0.9 265|209474.17.1 95.21.6 41 44 85 19 2.0 3.9 85 52 137 3.9 2.4 63 28 44 0.7. 2,0 30/8 48 1,4 0.8 2.2 3 0,5 7. 10 01 2 0,3 0.4 4 2 0.1 0.2. 0.3 0.0 12.10.22 051 1.04 6 6.2 0.1 0.3 3 4. 0.1 0.1 0.2 0,2 00) 0.3 3 - 7: 10 0.1 0.3 0.41 1. _3 240 4 0.1 0.1 0.2 / 0/ 0.0, 0.1 38 0.1 0.0. 0.1 0 240 10.9 0010.948 0 48 2,2 0.0: 2.2 0 38 1.7 00|1.7 2.8 0.0 2.8. 35 9 44 16 0.4. 2.0| 8 434 2 10 04 0.1 0.5 8 1 9 04 01 0.5 0.3 0.0 0.3 0 434 19.7 0.0 19,7 112 0.112 5.1 0.0 51 76 - 3,5 00 35 62 62 2.8 0.0 2.8 85. 24109 39. 11 50 16 / 17 0.7 0. 0.814 4 18 06 02 08 26 5 31 1.2 0.2 1.4 1535. 614 2199 721 279 100.355 162 517/167 74 235291 98 389132 45 (77224 47271102 2,1112.3 Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. E-insuftic. Into. 7-Psychological 8. Unknown Totat Evaluation a-Balloon 1-Astronomical I2-Aircraft *3-Ligtt Phenom. 4- Birds IS-Clouds, Dust ec 6 Insuftic. into. 1-Psychological B-Unknown 19 Other Total Evaluation jo-Balloon ¡l-Astronomical 2-Aucratt 3- Light Phenon 4-Birds 5-Clouds, Dust, etc. G Insuffic Into. 7-Psychological 8. Unknown 3.0 ther Total GRANGE OR GLOWING RANGE Per Cent RED OR GLOWING hER VEREEN OR GERWING GREEN LIGHT GLON, COLDR NOT KNOWN Certain Doubtfull Total Certain Doubttull Total Certain Doubtful, Total Certain | Doubtful Total Certain Doubtful| Total Certain | Doubtful Total Certain Doubtfull Total Certain Doubtful Total 15 125 0,5 1,2 9 22 66 0.4 1.0 0.0 0.1 14 8 0.6 0,4 1.0 30 10. C.7 25 55 1,4 1./ 2,5 13 38 16 54 0.7. 2,4 0 3 0.1 122 55 98 1 2.0 2,5 45 25 9 0.4 1,5 22 4C 0.8 1,0 1.8 22 30 1,6 14 0.3 0.6 18 10 11 1.5 2 0.0 14 0,6 0.3 0.5 2 3 0.7 2 0.0 0.1 C./ / C./ 0.2 0 0 0.0 0 0.0 0.0 0.D 0.0 0 O. 0.0 0.0 0.0 ANN 34 1.1 40 0,8 1.0 1,8 6 02 01 0.3 0 0.0 0.1 0. C.0 17 17 0,0 0.0 0.1 0.1 C.8 0.0 0.8 18 18 0.0 0.8 9 0,0 0.4 4 3 42. 7 0.2 0.1 0.3 3 3 0,0 0./ 9 0 0 33 0.0 0.0 21 0.0 33 14 0,6 2. 49 7116 2.2 0,4 0.0 0,3 7.2 0.7 1,5 0.0 1.5 0.0 21 7 2 9 0,3 O.. 0,4 3 0, 0.2 5 00-0 21 1.0 / 0l 0.0 0.1 1.0 0.1 1.0 0,0 1.0 0.7 0.0. 0.2 1153 68/22/7.0 3, 1110.1 135 44179|6.1 12.0 81.63144 37 29 65108 44 152 4.9 2.0. 6.9 VELLOW OR GLOWING VELLOW BLUE OR GLOWING BLUE BLACK OR GLOWING BLACK IGHT GLOM, INOFTERMINATE COLOR Number Per Cent number Per Cent Certain | Doubtful Total Certain Doubtfül Total Certain| Doubtful! Total Certain? Total Certain | Doubtful Total Certain Total Certain| Doubtful Total Certain Doubtful | Tolal 16 8 24 0.7 a4 38 0,6 1.1 3 / 4 0.1 0./ 0.2 74 14 5 V 0.2 a3| 05 0.1 0.1 1.7 00 36 1.0 0.6 28 38 1,3 0.5 1.8 0.1 0,0 0. 0 0.0 22 14 6 1,6 5 / 0.2 17 0,4 0.4 08 0.1. 0.3 0.0 ON 0.0 0.0 0.5 0.3 0.8 0. 0. 0.0 0.2 2 0.1 / 0.0 0.1 0./ 0.1 0 0 0.0 0.1 0 0D 0,0 00 0.0 0.2 o./ 14 14 0.6 0.0 0.6 0.00./| 0 3 0 0.0 0.0 0,0 3 0.0 0.0 00 0.0 0./ 0.0 D 0,5 00 0,5 0.0 0./ 0.0 0.0 2 01 01 02 3 1 4 01 0.1.0.2 0 0 0 0,0 1 00 0,0 31 0 31 1.4 3 1.2 0.0 1.2 5 0.1 00 04 22 0 22 12 8012 3 2 2 03 0013 1 8 1 81.0001 V17.421159|53|19|72 2221 93 33 10 4238 19 57 17 0926 5 27 021 0.110.3 VIOLET RE GLOWING VIOLET GLOWING GRAY Number Per Cent Certain Doubttull Totall Certain | Doubtful Total Number Certain Doubtful Total Coman local rotal Cordin atil Total Ceran a contal Total Coral out Tol Certain acant Toral 0.0 0.1 0.0 0.0 00 0.1 0.1 0./ 0.1 0.1 0.0 0.0 0,2 00 0.0 0.1 00 0.1 00 0.0 00 0.0 0,0 0.0 0.0 0.L 0.0 0.0 0.0 0.1 D./ 0.0 0.0 0.0 0.0 0.0 0. 00 0.1 0.0 0.0 0.0 2 5 0./ O.1 0,2. 3 2 5 0.0 0./ 0.0 D.1 0.0 0.0 0.1 0.00.0 0.10.21 143

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Evaluation la- Balloon 11- Astronomical 2- Aircratt 3 Light Phenom 4-Birds 5-Clouds, Dust, etc. G Insutfic. inio 7-Psycholopical 8- Unknown $ 0ther Total ramation 0-Balloon 1-Astronomical 2-Aiscraft 3-Light Phenom. 4-Birds 5-Clouds, Dust etc G insultic, Into. 7-Psychological 8 Unknown s Other Total Evaluation 0 Balloon 1-Astronomical 2-Aircratt 3-Light Phenom. 4- Birds 15-Clouds, Dust, etc. 6 Insuffic, Into. 2-Psychological & Untron sother Total Evaluation 0- Balloon 1-Astronomical 2-Aircratt 3-Light Phenon 4-Birds 5-Clouds, Dust, etc. 6 Insallic lato. 7-Psychological 8 Unturom 200he Total TABLE ALb EVALUATION ALL SIGHTINGS.. ALL YEARS BS NuL YEARS NUMBER 1947 wumber DE ABLECTS PER SIGHTING 48 ONE ОВЛЕСТ Per Cant Number Per Cent Number Per Cent Number 1949 Per Cent Certain (Doubtful| Total Certain Doubtful| Total Certain Doubtll Total Certain Doubtius Total Certain Doubtful Total Certain | Doubtful Total Certin Doubtful Total Certain Doubtful Total 228/47 - 375 9.5 6.1 15:6 5 70 0.0 7.0 15 19 747 29 6 34 34|9.0 18.4 204 14 35 5 19 43 15 5.8 436 311 18./ 12.9 310 40.8 8.4 49.2 34 65 20.3 20.3.406 64 128 192.19.7 394 59.1 227 /97 424 9.4 8.2 17.6 0.0 2.8 1.28 28 12 8.6 19 30 0.8 0.5 1.3 2 2.8 0,0 2.8 5 14 5.4 3.0 8:4 2 40 ao 3.7 12.3 06 06 1.2 0.0 00 2 0.1 0./ 0.4 0.5 0.2 21 0.9 0000 215 8.9 0.0 8.9 1.4 5 0.0 1.4 2 00/0 NGO0 0. .0 0.0 0.0 0.6 06 12 0.0 0,0 0.0 0.0 8.0. 0.0 000 100 0 0.0 0.0 0,0 0.0 0.0 0.0 215 34 463 99 7.0 0,0 7.0 00 2.8 0.0 2.8 19.2 19.2 12 16.9 00 16.9 4.1 0.0 4.1 8 12 8 11.3 0.0|11.3 16 23 8 16 0.0 96 22 100 9.6 2 6.8 00. 6.8 00 0.0 0.0 23 13.8 0.0 /38 40 100 a 3 0.0 0.3 4012.3 0.0 12.3 8 48 0.0 48 10 10 3./ 0.0 3.1 11731679/2410 71.8 28.2100. 63 8/71 88.711.3100.107 60 167 64135.9.100. 179145 324 55.3 44.7100 1950 195/ 195€ Number Per Cent Number Per Cent Number Per Cent Number Per Can| Certain Doubtfull Total Certain | Doubtful'" Total Certain Doubtful| Total Certain| Doubtful Total Certain Doubtfull Total Certain | Doubtfull Total Certain Doubthill Total Certain Doubttul Total 30 37 1/.8 2.8 1. 6 10 4 141 7.4 2.7 10.3154/12 366 10.6 25 71 18.1 9.8 23 272 7.7 46 279 22 14 183 37 16.9 10. 3| 240 104 344 16.,5 7.1 13 35 8.6 5.1 13.7 15 22 11.01 5/16.1 153 158 31110.510.8 23,6 21.3 0D 00 0.0 2 3 1.5 0.7 2.2 9 00 0.0 0.0 00 0.0 0.0 23 10 0.6 1.6 00 0.0 0.0 0.0 0.0 0.0 00 , 0.0) 0.0 9 0.6 0.g 44 53 10 44 53 10 17.3 0.0 17.3 1.6 0.0 0.0 1.6 20.8 20.8 3.9 0.0 3.9 10 43 5 10 74 12 21 8. / a0 1st 118 118 2 15 00 7.4 1.5 25 1.7 8.1 0.0 25 0.0 433%.6 1.2 0.0 3/6 are 292 20.0 0.0 200 5 3.7 3.7 58 581 4.0 0.0 40 209 45 254823177100. 11101 26 136/80.9 191100. 1063 3951858 729 271/100. TABLE A67 EVALUATION DE ALL SIGHTINGS FOR ALL YEARS 34 NUMBER OF OBJECTS PER SIGHTING, TwO OBJECTS ALL YEARS - 1947 1948 1949 Number Per Cent Number Per Cent Certain Doubtfull Total Certain Doubtiul" Total Certain Doubtful| Tolas Ceitin| Doubifud Total Number Per Cent Humor Per Cent "Certain Doubtal Total Certain Doubtful Total Certain Doubthul Total Certain Doubtful Total 22 21 43 8.0 7615.6 0.0 0.0 0.0 6.7 G.7 13.4 2 10.0 0.0 10.0 13 25 44 4,7 .53 96 9.1 2 2 22.2 22.2 0.0 444F 13.3 20.0 6.7 20.0 6 10 30.0 20.0 50.0 43 19.3 15.6/349 11.1 11.1 20.0 6 10.0 20.0 30.0 0.7 2.1 0.0 0.0 0.0 6.7 0.0 6.7 0.0 0.0 0,0 0 0.0 0.0 0.0 0.0 00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 19 4 64 15 / 0.7 6.8 04 0.0 0.0 00 0.0 ao 0.0 0. 0 6.9 0 0.0 ao 0.0 00 0.0 0.0 0.0 0 19 00 0.0 0.0 0.0 0.0 0' 4 14 0.0 1.4 0.0 0,0 0.0 0 64 23.3 0.0; 23.3 2 2 2 ,22.2 0,0 22.2 22.2 o G 0.0 0.0 0.0 0.0 00 0.0 00 113.3 2 10.0 00 10.0 0:15 5.4 0,0 5.4 0.0 22.2 4 26.7 13.3 0.0 26.7 0.0 0.0 0.0 195 80/275/20.929./100. 7 2 / 9 778 222/00. 13 2 15 1867/133.100. 12 8 20.60.0 400100. 19.50 195/ 1952 Number Per Cent Per Cent Per Cent Per Cent Certain Doubttul Total Certain Doubtful | Total Number Certain Doubtfui Total Certain Doubtful Total Certain fumber Numbe Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtiui | Total 5.3 0.0 5.3 0 0.0 0.0 0.0 18 20 38 8.7 9.7 18.4 0 0.0 0.0 a0 0 0.0 00 0.0 2 6 1.0 2.9 31.6 5.3 36.9 a0 00 41 38. 19.8 18.4 3.9 0.0 79 5 38.2 0.0 0.0 0.0 ao 0.0 0,0 3 0.0 0.0 2 1.4 1.0 2.4 0.0 00 00 0.0 0.0 0,0 00 0.0 0.0 0.0 do 00 0.0 3 10 0.5 1.5 5.3 00 5.3 00 00 0.0 18 18 8.7 00 0.0 0.0 8.7 0.0 0.0 0.0 00 0.0 0.0 800 4 1.8 119 47.4 47.4 4 Q0 800 $45 $5 21.7 0.02/7 5.3 00 5.3 20.0 00 20.0 7 7 3.4 0.0. 3.4 18 19 94.7 5.3 100. 15 5 100.0 00/00. 67 207 676 32.4 /00. 144

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Evaluation 10 Balloon I l- Astronomital 2-Aurcratt 7 Light Phenom. 4- Buds S- Clouds, Dust, elt. 6 Insuflic Into 7-Psychologicat B Unknow 9 Other Total Evaluation o-Balloon I-Astronomical 2-Aincraft 3-Light Phenon. - Birds 5-Clouds, Dust, etc. & Insuffic. into. 7-Psychofogical 8 Unknown 9-0ther Total Evaluation O-Balloon I-Astronomical 2-Aircratt 3-Light Phenom, + Birds 5-Clouds, Dust, etc 6 Insutlic. Into. - Psychological 8-Unkno Unknown 90ther Total Eyaduation 0- Balloon 1 1- Astronomical 2-Airciatt 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insullic into. 7-Psychological &. Unichown 90the Total TABLE ALS EVALVATION OF ALL SIGHTINGS. FOR. ALL NUMBER OF YEARS OBJECTS At: YENRS PER SIGHTING, THREE TO • TEN 1947 Number Per Cent 1978 OBJECTS 1949 Number Per Cent Number Per Cent Humbet Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 15 10 251 12 4.2 2.81 2.0 1.0 4.0 0,0 4.0 6.7 0.0 00. 0.0 0.0 7 19 3.4 5.4 0.0 0.0 0.0 0.0. 13.3 13.3 6 7 38 105 18.8 10.4 29.4 4.0 0.0 4.0 3 3 20.0 0.0 20.0 10 1.1 0.0 1.1 38. 34.7 38.5 4 10 14 2.8 0.0 0.0 00 4 4 0.0 24.7 26.7 0.0 6 0.0 0.0 8 14 17 00 2.2 3.9 129 42 42 0.0.0.0 11.8 0.0 11.8 0 7 0.0 0.0 0.0 3 4.7 13.3 20.0 1.0 3.8 0.0 3.8 0.0 0.0 0.0 0.0. 0.0 0.0 0.0 28.0 0.0 0.0 0.0 28.0 5 03 108) 1.4 0.0 4.0 30.3 9 36.0 40 0.0 0.0, 0.0 00 108 303|00 0.0360 13.3 0.0 13.3 7 5 26.9 0.0 26.9 3.8 0.0 3. 8 0,6 19.2 0.0 19.2 23 254.4 20 01 6 1240 0.024.0 0.0. 0.0.0.0 00 00 0.0 273 84 357 765.235 100 24 1125/960 4. 0100. 7 8 115/46.753.3100. 16 10 264.5 38.5 100. 1950 1951 1952 Number Per Cent Certain Doubtful Total Certain Doubtful Number Per Cent Number Per Cent Number Per Cant Total Cerlain Doubtful Total Certain Doubifull Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total 2 0 2 1.1 0.0 1.1 0.0 0 0.0 2 0.0. 0.0 11/ 3 10: 21 44 4.0 8.4 00.00 3 5 18.2. 27.3:45.5 7 10 12 28 40 12 39.3. 3.6 42.9 9.1 0.0 9.150 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 28. 78.19.8 11.1,30.9 6 10 16 24. 4.0 0.0 0.0 0.0 5 5. 1020. 2.0.4.0 0.0 0.0 0.0 0.0 0.0 0.0 0 00 00. 0.0 14.3 0.0.14.3 21 0.0 9.1 23 0 23 91 00/21 0.0 0.0 0.0 0.0. 0.0 8 8 28.6 0.0 28.1 3 0.0 3 3 0.0. 1.2 1.2 27.3. 0.0 21.3 81 0 8/32.1 0.0 32.1 2 36 36 1.2 / 1 д.1 0.0 9.11 15 1 16 5.9 04 4.3 26 2 28/42.91.1:100 8 311/22.7.273 100.192 60 252 76.2. 23.8 100. TABLE ALI EVALUATION OF ALL SIGHTINGS FOR ALL YEARS B4 NUMBER OF OBJECTS PER SIGHTING А4 YEARS ELEVEN OR MORE OBJECTS 1947 1948 1949 Per Cent Number Per Cent Humber Per Cent Humbes Per Cent Certain Doubtful Total Certain Doubtful Tolal Certain Dosbtful Total Certain] Doubthal Total Certain Doubtful Total Certain Doubthul Total Certain Doubtful Total Certain Doubtiul | Total 2 1.1 7 3 3 00 3 42 5 2.4. 1. / 2.2 00. 000.0 0 00.00 0.0 20 00 0.0 14.2 111.6 20 0.0 0.0 1 00 25.0 250 0.0 0.000 6 9 3.2 6.3 9.5 0.0. 0.0.0.0 1.25.0 0.0 25.0 / 00 5.656 3.2 0.0 3.2 7 6.3. 1.1 0.0 0.0 0.0 L 00 00 00 00 00 0.0 1.4 0 00 2.000 00 00 00 4 22.2 00 22.2 00 00 00 0 00 0.0. 00 0 00 00 00 00. 00 00 1/ 116 0.0 11.6 0.0 0.0 00 4 32 1.1 4.3 2 125 12.5.250 / 25.0.0.0 250 5 5. 27.8 0.0 278 / 1. 25.0 0.0 25.0 56 00 5.6 0 72 44.2 00 44.2 0 5 625 0.062.5 6 53 11164 0! 1 12.5 0.0125 ° 0 90 00 00 _ 0 00. 00 00. 0 6 33.3 0.0 23.3 0 1 56 0.0 56 8/ 1495/85.314.7 100. 7 18 87512.5 100. 3 1 4 75.0 25.0100 17 1 18 94.4 5.6 100 1950 195/ 1952 Number Per Cent Muraber Per Cent Number Per Cent Number Per Cent Certain Doubtful | Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful| Tota Certain Doubtiul| Total Certain Doubtful| Total Certain Doubtal Total Certain Doubtful Total 0 0.0 0.0 0.0 0.0 0.00.0 1.7 1.13.4 50.0 0.0 50.0 0.0 0.0 0.0 6 3 • 52 155 0,0 0.0 0.0 0.0 0.0 0.0 00 0.0 0.00.0 0.0 0.0 0.0.20.020.0 7 3 2 10.3 34 8.6.12.0 5.2| 0.0 5.2 0.0 0.0 00 0.0 3.4 0.0. 3.4 0.0 20.0. 0.0 20.0 00 0.0 0.0.0.0 6.2. 0.0 0.0 0.00.0 0.0 00 50.0 0.0 500 08190090 0.0 0.0 00 2 1000 00/00 2 / 4 0.0 0.0 40.0 0.0.40.0 20.00.0 200 28 3 34 17 5.1 5 80.0 20.0.100. 48 10/58 82817.2100. 145

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Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenomi. 4-Birds 5-Clouds, Dust, etc. G Insuffic. Info. 7-Psyctological 8- Unknown 9-0ther Total TABLE A70 EVALKATION DE ALL SIGHTINGS NUMBER OF OBJECTS PER SIGHTING, 1947 FOR ALL YEARS NUMBER OF OBJECTS NOT 1948 1949 ВУ STATED Number Per Cent Number Per Cent Certain Doubtful Total Certain | Doubtful Total Certain Doubtful | Total Certain Doubtful Total 4 5 6.3 1.6 14 2/8 7.9 / 0 25.0 0.0|25.0 1.6 23.49 0 25.01 0.0 25.0 4 4 6.3 2 3./ 6.3.12.6 0 0.0 0.0 0.0 16 6 9.4 0.0 4.7 0.0 0.0 D.0 1.6 0.0 9.4 00 0.0 17.2 1.6 11 0.0.17.2 4.6 0.01 1.6 18.7 0.0 18.7 0 00 N 0 0.0 0.0 2 50,0 00 0.0 0.0 50.0 0.0 12 2 00 12 2 3.1 0.0 3./ 0,0 0.1 57 7 64 88.9 111 100.| 4 Number Certain Doubtful| Total 4/100.0 0.0 100. 0 0 2 Per Cent Certain Doubtful Total 0.0 0.0 00 0.0 25.0250 0.0 0.0 0.0 25.025.0 0.0 0.0 0.0 50,0 0.0 0.0 0.0 0.0 0.0 0.0 50.0 00 0.0 0.0 0.0 0.0 Number Per Cent Certain Doubtful! Total Certain Doubtful Total 0.0 0.00.0 2 28.6. 0.028.6 0.0 00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 00 0.0 286 0.0 3 3 0.0 0.028.6 0.0 0.0 42:8 0.042.8 00. 0.0. 0.0 2 2 4 50.050.0 100. 7 7.100.0 0.0100. Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insultic, Info. 7-Psychological 8-Unknown 9-Other Total 1950 195/ 1952 Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doublful Total Certain] Doubtil Total Ceriain | Doubtful Total Certain Doubtful Total Certain Doubtful Total | Certain T Doubtful! Total 0 0.0 0.0 0.0 0.0 0.0 0.0 3 / 7.0 2.3 2 66.7 0.0 0.0 0.0 0.0 20.9. 9.3 0.0 20.9 0.0 0.0 0.0 0.0 00 0. 00 0.0 0.0 33.3 0.0 0.0 0,0 0.0 00 00 0.0 0.0 0.0 0.0|33.3 0.0 33.3 333 0.0 0,0 0.0 0.0 0.0 0.0 4 2 6 7 9.3 7.0 16.3 0 2 4.7 0.0 4,7 0 6 140 0.0 14.0 0.0 00 2.3 0.0 2.3 0 2 0.0 66.7 7.0 0.0 7.0 0.0 0.0 0.0 2.3 0.0 0.0 9 2.3 20.9 0.0.20.9 0 0.0 a0 0.0 2.3 0.0 2.3 3 3 1000 0.0 100. 2 3 66.7/333/00.1 39 4|43/90,79.3100. 146

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Evaluation 0. Balloon 1-Astronomical 2-Aircran 3-Ligt Pianon 4-Birds S-Cloads, Dest, etc. Elecuffic into. 7-Psycho logical Total Evaluation O-Balloon L-Astronomical 2-Aircraft 3-Light Phenom 4- Birds 5-Clouds, Dust elc & tapattic. into. 7.Psychological & Uaknown is-Other Total Evaluation 0-Balloon 1-Astronomical 2-Airciaft 3-Light Phenom. 4 Birds 5-Clouds, Dust, etc. 6 insuffic. Into. 7-Psycholo gical 8. Unkno wa S Other Total Evaluation 0-Balloon i -Astronomical 2-Aurcratt 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. & Insuffic into. 7-Psycholopical B-Unknown sotten TABLE. ATI EVALUATION OF UNIT SIGHTINGS FOR ALL DE OBJECTS PER YEARS NUMBER SIGHTING ONE ОВЛЕСТ AtL YEARS 1947 Rumber 1948 Number Number 1948 Per Cont Per Cent Per Cent Nair net Per Cenl Certain Doubtful Tola! Certain Doubtful Total Certain Doubtful Tota Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtfull Total Certain Doubiful (Total 190.123 313 2.2 6.4 11.3 5. 8.8 0.0 8.8 12 10 22 97 8.111.8 10 3.15 5.4 1.6 2.0 353.22/ 580 18.4.11.8 30.2 11 23 23. 50 21.8 185.40.328 14/0415.2 192. 140.350 10 29 9.9 8.3 18.2 19 1.0 05 15 2 01 0.2 2. 10 0.2 04, 06 2 0 0 2 29,8. 10.5 0.0. 2 3.5 40.3 0.0 3.5 27 3.5 2 4 13 1.3 21 8.1 41.3 565 3.2 10.5 15 08 0.8 3.3 11.4 3,5 0 0.0 00 0.0 2,0 0.0 0.0 0 00 0.0 00 0.0 0.0 00 9.5 5 0.0 0.8 0.8 0 0.0 182 0182 951 5 8.8 00 32 8.8 14 0 0.14 00 1.6 11.3 0.0 0.0 0 0.0 0.0 0.0 1.3 2/111.4 00 00 11.4 29 3 1.2 3.5 0.0 3.5 21 150.2 2 0.0. 0.0 10,5 0.00.5 338 8 338 11.400 117.4 0 1119.3 0.0 59.22 1 19.3 0.0 15 0 15 12.1 0.012.1 19 0 19 110.3 0.0 81 3.11.1 4/2 10.3 0. 7123 00 12.3 7 2.4 3.2 5.6 5 5 2.1 10.0 12.7 13641 5531/917 71.2 28.8100. 49 8/57.86.014.0. 100|82 42 124 661 33.9 V00. 99 85 184 53 8 46.2 100. 1850 19.51 Number Number 1252 Per Cent Number Per Cent Per Cent Per Cent Certain Doubtful Total Certain Number Doubtful Total Certain Doubtful| Total Certain Douhttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain] Doubtful | Total 19 24 11.0. 2.9 13.9 39 18 9 3 12 1.2, 2.6 10.3 20 31 135.102.237 10.1, 8.1188 57 22.710.5 33.2 17.1. 9.4. 1.5 222 93 315 176 74 250 18 9. 27.10.5 5.2151 15 1. 22. 128. 6.0 18.8 133 132 265 105 10.5 21.0 00 0.0 0.0 2 / 3 17. 0.9. 2.6 0.000 0.0 14 2 23:11 0.71.8 0 0 0 0.0 0.0 0.0 000 0.0.0.0 0 0 0.0 0.0 0.0 0 0.0 0.0 0.0 3 10 02 06.08 2L 34 021 12.2 0.012.2 10 0 10 8.5 0.0 8.5 11/ 0 41 88 00 8.8 2 1.2 0.0 1.2 / 2. 0.9 0.4 1.8 23 2 : 25. 18 0.22.0 0 34 19.8 0.0 19.8 32 4.0 032 21.31 0.0 27.3227 4.3 0.04.3 0.227.18.0 00 00180 4 11.7. 2.3 5 0 5 36 14 50 29 11 40 136. 36. 172.79.1/20.9100. 94/23:117 80.4119.6 100 904/359/263/71.6/28.4100. TABLE A12 ENALUATION OF UNIT SIGHTINGS ALL BY NUMBER OF OBJECTS PER FOR YEARS SIGHTING, TWO OBJECTS ALL YEARS Number Number 1947 Number 1948 1249 Per Cent Per Cent Per Cent Number Per Cert - Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total Certain) Doubtful Total Certain Doubtful Total Certain) Doubtful Total Certain Doubtful Total Certain Doubtful Total 19 17 34 8.1 2.8 16. 5 0100 0.00.0 1 10.0 0.010.0 0.0 7.1 12, 19 5.5 2 3 14.3 28. 6 42.9 0 / 110.0 0.010.0 3 7 214/28.6 150.0 42 3.2 8.1 38 8019.2 17.4 36.4 114.3 0.0 /4.3 30.0 4 3 0.0 30.0 2 4 14.3 14.3 28.4 18 0.9 21 0 0.0 0.0 0.0 10.0 0:0 10.0 0.0 00 0.0 0.0 0.0 0.0 0 0.0 0.0 00 0 0.0 00 0.0 0 0.0 0.0 00 0.0 0.0 0.0 0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 19 8.1 0.0 0 0 0.0 0.0 8.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 14 0.5 19' 01 0 00 00 0.0 0 0 00 00 00 0 0 0 00 0.0 0.0 4/ 10 1,45 41 18.81 3 0.018.8 14.3 0.0 14.3 0 0 00 00.002 2 /4.3 0.0 14.3 13 46 14 40 2. 28.6 0.0 1286 3 4 10.030.0 400 0 0 0 00. 0.0 0.0 43 218 /446/33.4100 5 2 7 71. 4/28.6100. 3/ 10/10.030.0100. 8 6 14 57.142.9100. 1950 Per Cent 1951 1952 Certain Doubtlul Total Certain Doubtful Total certain Doubt Tota Certain Percent Told Certain Mutil Total Certain overtil Total certain outal Total Certain eat To a 0 1110.0 0.010.0 0 00 00 0.0 16 17 33 91 9.718.8 0 4 0 00. 00 00 40.0 100 50.0 0 0 0 00 0.0 0.0 2 4 8 11 34 45 0 0 0.0 00 0.0 0 0.0 0.0 100 0 0.0 2.0 2.0 10.0 0.0 10.0 0 00 0.0 00 2 120.0 0.0 20.0 10.02.0 100 / 0 0 000 10.0 00 00 32 35 67183 20.0 38.3 0.0 0.0 00 2 5 17 11 2.8 0 0.0 0.0 • 10.0 0 0 00 00 0.0 000 0.0 0.0 0 0.0 00 00 000 0.0 0.0 0 18 10.3 00 10.3 0100 0.0 0.0 150.0 00 50.0 / 150.0 00 50.0 3 35 5 / 4 17 06 2.3 0 35 20.0 0.0 20.0 5 29 00 2.9 110/900/100100 2 0 2 10000.0 400 (114 61 175 652/34.8/100 147

━ PAGE 157 ━

Evaluation 0- Balloon 12-Aurcrat 3- Light Phenom. 4-Birds S-Clouds, Dust etc. 6 Insuffic into. 7-Psychological 8. Unimown $-Other Total can anor Q-Balloon I-Astronomical 2-Aircaft 3-Light Pherom. + Birds 5-Clouds, Dust, etc. 6 Insuffic. into. 7-Psyc.hological &-Unlnown 9-Other Total Evaluations D-Balloon 1-Astronomical 2-Aircraft 3-Light Phenoms. 4-Birds 5-Clouds, Dust, etc 5-Insuftic. into. -Psychological 8 Unknown 9-0 thet Total E valuation 0- Balloon 2-Aircraft 3- Light Phenom 4-Birds S-Clouds, Dust, etc. G lasuttic. into T.- Psychological some Total TABLE A13 EVALVATION NUMBER 0F DE UNIT SIGHTINGS FOR ALL YEARS BY OBJECTS PER SIGHTING - TO TEN ALL YERRS 1942 1948 THREE OBJECTS 1949 Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful| Total Certain Doubtful! Total Certain Doubtful Total Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total 14 23 4.9 32 8.1 14.8 0.0 5 12 1.8 4.2 0.0 48 0 2 21 0.0 0.0 0.0 0.0 00.0. 0.0 2 0.0/18.218.2 0.0 5.6 54 6.0 28.4 56 27 8/ 8 18.9 9.5 12 1.4 2.8 4.2 13 1.8 2.8 4.6 0 0.0 0.0 0.0 / 0 0 5 14.8 0.0 48 2 18.2 0.0 18.2 5.6 16.722.3 0 00 0.0 0,0 22 0.0 18.2 18.2 0.0 0.0 00 0.20 0.0 0.0 2 9.1 18.2. 27.3 0.0 5.6 5.6 0 00.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 39 / 18 16 216 3 39 13.1 0.0 13.7 5 23.8 10.0 23.8 0.0 0.0 0.0 1333 0.0 33.3 4/0.4 1./ 15 00 4.8 0.0 0.0 5.1 0.0 5.4 2 18 148 27.4 5.4 0.0 27.4 4.8 0.0 7 33.3 313 91 0.0 5 5 27.8 0.0 27.8 01 4.3 € 28,6 0.0.286 0.0 0.0 00 0.01 0.0 0.0 69 285 758.24.2 100. 20 / 21952 483 100 5 6 11 45.554.5100 14 18 17.8 22.2 100. Numbes 19.50 Per Cent Number 195/ Per Cent 1952 Number Per Cent Nue ber Per Cent Certain Doubtful Total Cerlain Doubtful Total Certain Doubtful Total Certain Doubthil Total Certain Doubtful Total Certain Doubtful Total Certain Doubtsul Total Certain Doubtful Tota 2 2 9.1. 0.0. 9.1 00.0 00 0.0 0, 0.0 00.00 4. 10.0. 30.0 40.0 9 36.4 4.5 40.9 0 00 000.0 L 0 / 10.0 0.0 10.0 00. 00 10 3 41 9 19.4.9 4.4 2.3 1015 3.4 4.9 23 44/ 20.2 /1.3 31. 5 10 3.0 5.0 0 0 0.0 2.0 0L 00 00 0.0 0 0.0 0.0 0.0 0 00 0.0.0.0 5 92.0 2.5 4.5 4 18.2 0.0.18.2 10.0 0.0 0.0 0 0.0 0.0 0.0 10.0 0.010.0 0. 0.0 0.0 0 00 0.0 0.0 5 22.1, 0,0 0.0 22.7 з 3 30.0 0.0 300 110.0 0.0 10.0 23 57 11.3 0.0 11.3 2 2 00 1.0 10 0 57 28.0 00.28.0 2 4.5. 4.5 9.0 2 39 0.5 4.3 120 2 22 90.9. 9.1 100. 1 3 10. 20.030.0.100. 1150 53.203/3.9.2./ 100. TABLE A74 EVALVATION DE UNIT SIGHTINGS FOR ALL DE OBJECTS PER YEARS NUMBER SIGHTINGI ELEVEN OR ALL YEARS 1947 1948 MORE Number Number Per Cent Per Cent 1949 OBJECTS Fatal Number Per Cent Certain Doubtful Total Certain | Doubltul Total Certain Doubtfsl| Total Certain Doubttul Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2 1.3 1.3 2.6 6.1 5./ 10.2 38 0 0 0 00 0.00.0 0 00.0 00 0.0 0 0 20 0.00.0 0.0 0.0 1 0.0 25.0 25.0 0 25.0 0 0 0.0 0.00.0 16 11.4 00 0.0 0.0 / 25.0 0.0 10.0 3 4 3.8 38 0 1.1 1.1 3 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5./ 1.3 6.4 0 0,0 0.0 0,0 0 0.0 00 00 2 0 0.0 0.0 215.4 0.015.4. 0.0 0.0 0.0 00.0 0.0. 0.0 0 0.0 0.0 0.0 10.12.7 0 125.0 0.0 4 0.0 0.0 0.0 12.7 0.0 0.0 0.0 0.0 250 4 30.8 3 32 5 4: 3.8 1.3 5.1 2 12.512.5 25.0 0 / 250. 0.0 25.0 0 0.0 30.8 1270.0. 27 0 32 405. 0.0 40.5 5 5625 0.0 625 0 0: 00 00 0.0 4 4 308 0.0 308 6 6.3 1.3 1. 6 / 22.5 0012.5 0 00 0.0 0.0 / L 77 0.0 17.7 65 14 19/82.317.7100. 1 8 87.5 12.5100. 3 4 15.025.0 100. 12 / 13/92.37.7100. 19.50 195г 1952 Number Per Cent Mumber Per Cent Certain Doubttul Total Certain | Doubtful Tolal Certain | Doubtful Total Certain Doubtlul Total Certain Number Per Cent Morte Per Cent Doubtful Total Certain Doubttil Total Certain Doubtful Total Certain Doubtful | Total 0 0.0 0.0 0.0 0 0 00 00 0.0 2 2./ 2.1 4.2 / 50.0 0.0 50.0 0 0.0 0.000 к.4 6.4 112.8 0,0 0.0 0.0 0.0 0.00,0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0.0 0,0 aa 20.0 20.0 0.0 0.0 0.00 0 0.0 0.0 0.0 5 0 0 0 4.3 10.614.9 3 6.4 0.06•4 2 4.3 0.0 0.0 0.0 0.0 0.0 0.0 0 / 20.0 0.0 20.0 4 8.5 0.0 0.0 0.0 0.0 150.0 00 50.0 00 0.0 0.0 2 2 1000.00100 2 4 3 3 2 4 20 2 5. 80.0. 200100 37 10/47.18.121.3.100 4.3 0.0 85 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 40.0 20 42.5 0.0. 42.5 120.0 00.20.0 3 4.3.1 2.14.4 148

━ PAGE 158 ━

Evaluation 0- Balloon | 1-Astronomical 2-Aircraft 3- Light Phenon. 4- Birds S-Clouds, Dust, etc. f- Insufic into. 7-Psychological sOther Total Evaluation 0-Balloon 1-Astronomical 2-Aircratt 3-Light Phenom. 4 Birds 5-Clouds, Dusl, etc 6- Insuftic. info. 7-Psychological &-Unknown 130ther Total TABLE. A15 EVALUATION DE UNIT SIGHTINGS FOR ALL YEARS ALL NUMBER OF OBJECTS PER S/GHTING, NUMBER OF OBJECTS NOT STATED YEARS Per Cent Rumber 1947 Per Cent Number 1948 Per Cent 1942 Nueber Per Cent Certain | Doubtful Toial Certain Doubtful Total Certain Doubtlul Total Certain Doubttul Total Certain Deubtful Tetal Certain Doubtful Total Certain Doubthal Total Certain Doubtful | Total 513 18 9.1 12500.0 25.0 0 00 0.0 0.0 0.0 10.000 14 15 25.5 754 1.827.3 / 25.0 0.0 25.0 / 0.0 25.025.0 2 2 286 0.0 28.6 1,312.1 2 00 00 00 0 0.0. 0.0 0 0.0. 0.0 33.6 3 18 5,4 0.0 0.0 0 00 / 00| 25.0|26.0 5.4 D.0 0.0 0.0 00 0.0 5.4 0 0.0 0.0 0.0 0 0.01 00 0.0 0.0 00 0.0. 00 0.0 0.0 00 0.00 0.0 0.0 / 20.0 0.0/20.0 2 50.0 50.0 0 2 0.0150.0 500 0 2 0.0 -00 0.0 0.0 0.0 2 28.6 Die 28.6 00 0 2 47 / 1 0.0 48 1.8 0.0 0.0 0 0.0 814.5 0.0 14.5 0.00.0 0 0.0 0.0 00 0.0 0.0 0.0 0.0 0.0 3 42.9 0.0 42.9 2 3.6 0.0 3.6 0 0.0 l 0.0 0 0.0 00 0.0 0 00 0.0 0.0 8 55 155 14.5 100. 4 0 4 100d 0.0100. 2 4 50.0 50.0 100. 7. 1000 0.0, 100. 1950 195/ 1952. Number Per Cent Number Per Cent Certain Doubtful Total Certain | Doubtful Total Certair: Doubtful Total Certain Doubtsul| Total Nueber Per Cent Certain Humber Per Cent Doubtlui Total Certain | Doubtful Total Certail Doubtlul Total Certain Doubtil Total 0 0 0.0 0.0 0.0 0 00 0.0 0.0 4 8.8 2.9 11.7 2 2 66. 1 0.0 66. 7 0 01 0.0 0.0 0.0 0 0.00 0.00.0 1 0.0 33.333.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 00 0.0 0.0 0.0 9 3 2 3 0.0 000.0 0 0 10.0 0.0 0.0 2, 0.0 00 0.0 2 16.7 20 kat 3 000040 926.5 0.0. 26,5 4188 8.8 176 25.9 00 5.9 3 8.8. 0.0 8.8 00.0. 0.000 0.0 0.0 0.0 0 0.0 0.0 0.0 4 3 88 0.0 8.8 0.0 0.0 <0.0 29. 2.9 0.0 0.0 0 0.0 0.0 5 117. 0.0147 33.3 0.0|33.3 0 0.0 00 00 1 2.9 0.0 2.9 3 100.0 0.01100. 3 /6k./ 33.3100. 29 5 34 853 147 100. 149

━ PAGE 159 ━

Evaluation lo Balloon : 1-Astronomical 12-Arrcrat 3 Light Phenom. 4-Birds 5-Clouds, Dust, etc. & Insuffic. into. -Psychological sothes Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft |3-Light Phenom. 4 Birds 5-Clouds, Dust, etc. 6- Insultic. info. 7-Psychological 3-0 thes Total Evaluation D-Balloon 1-Astronomical 2-Airccaft 3-Light Phenom. 4- Birds 5-Clouds, Dust, etc. G- Insuffic. into. 1-Psychological 8-Unknawn 9 Other Total Evaluation 0- Balloon 1-Astronomical 2-Aircratt 3- Light Phenom. S-Clouds, Dust etc. 6 Insuflic into. 7-Psychological B-Undnown 3-0 ther Total TABLE AJU EVALUATION DE OBJECT SIGHTINGS FOR ALL YEARS NUMBER OF OBJECTS TOTAL 1947 PER SIGHTING 1948 ONE DE.EST B4 1942 Numbe Per Cent Number Per Cent Humber Per Cent Number Per Cent Certain Doubttul; Tolal Certain Doubiful Total Certain Doubtful Total Certain Doubtiul Total Certain Doubtiul Total Certain Doubtful, Total Certain Doubtful| Total Certain Doubtful Tota 106 109 285 :0.8 67.175 5 0 5 /1.1 0.0 1./ 10 10 20 8.7 8.7 174 248118.424/52 10.9 261 4.13 15.413.3 28.9 2,5 19 4/4 211. 16.5 38.2 114/ 143 31710.6 8.7.19.3 2 0.0 1 1318 3.5/1.3 1D 23 15 2 12 4.9 1.4 8.3 52 25 15.8 35.8 51L 21 10.3 4.L 14.4 12 24 1.0 0.4 1.4 2 0.L 0.1 0.2 710 0.2 04 0,6 149 28 292 51 0169 103 00. 10.3 3 31 17 0.2. 1.9 0 297. 18.2 0.0 18.2 4.6 2 5 2 10 2 4.4 4.4 0.0 4.4 4 4.4 1 0.9 0.0 0 0.0 0.0 0.8 0.9 0 0.0 0.0 0.0 0.0 ₴ 0.9 18 0.0 0.0 0.0 0 0.0 5 11.I 0,0 0.0 0 00 0.0 0.0 0.0 0.0 0.0 0.0 1./ 0 2 4.4 0.0 4.4 10.22.2 0.0 22.2 18 75 3.5 1./ 0 k 13.3 0.0 13.3 14 14 3 14 12.2 00 12.2 0.0 0.0 0.0 14 12.2 0.012.2 4 1 2.6 3.5 6.1 14 15 5 0 16 111.0 00 11.0 / 0.7 00 15.10.3 0.7 0.0. 10.3 5 34 0.0 3.4 1170 464/1636 11.5.28.5,100 37 8 45 82.2|17.8 100. 17 38 115 470 33.0100. 85 60/145 58.741.31100. 1950 1951 Number Per Cent Number 1952 Per Cent Number Per Cent Number Per Cent Certain Doubtul Total Certain Doubtlul Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Cerlain Doubtful Total Certain Doubtful Total Certain Doutal Total 18 24 4 22 12.9 2.9 15.8 14 38 17.1 10.0 271 14 1 21 10.0 5.015.0 & 15 14 3 11 7.8 2.9 10.2/25 90.215 115 83 19.8 11. 24 14.710.8 255 154 7423041.10 211 20 13.7 5.9 19.6 12,2 118 240 112108 22.0 0 0.0 00 0.0 11.0 1.0 2.0 6 19 1.2 0.6 18 0 0.0 0.0. 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 e 0.0 000.0 0 0.0 0 0.0 0.0 0 9.8 0.9 21 2115.0 0.015.0 10 10 00 9.8 3 10.0.3 0.6 103 0103 9.5 0.0l 2.5 2 14 0.0 14 2 10 1.0 2.0 221 2 242.0 0.2 3/ 221 00.22.1 2.2 3/ 27 0 27 26.5 0.0 26.5 0 200 2 4 0. 18.4 3 5 21 14 3.5 4. 3.9 200 18.4 0.0 0.0 3.2 34 11 48 3.3 1./ 4.4 1113/ 27 14/0/80.1 19.3.100. 801 22/102 /78.4 21.6 100. 718.311 108971.4 /28.6.100. TABLE AZZ EVALVATION OF OBJECT SIGHTINGS FOR ALL OBJECTS YEARS BY NUMBER OF S/GHTING, OBJECTS TOTAL PER 1947 Number Per Cent Number Per Cent Number 1948 1949 Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 17 14 31 8.1 7.1 15.8 0 0.0 0.0 0.0 1 111 00 11.1 7.7 0.0 27 40 17 31 5.48.2 2 3 14.3 28.442.9 0 00 0.00.0 3 23.1 23.146.2 3/ 204 15.8 3,2 14/3 0.0 14.3 3 33.3 00 4. 6 33.3 2 15.4 15.4 30.8 2.0 1.0 3.0 0 0.0 00 00 11./ 0.0 1.1 0.0 0.0 D.0 0.0 0.00.0 0.0 0.0 0.0 0.0 0.0. 00 0 0.0 0.0 0.0 18 9.2 0.0 9.2 3 4 15 05 2.0 37 37 189 00 18.2 9 3 12 46 15 6. 1 0 0 / 2 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0 0. 0 0.0 0.0 0.0 0 0.0 0.0 0.0 0 0.0 0.0 0.0. e 0 00 00.00 114.3 0.0 14.3 0.0 0.0 00 0 0 2 0.0 0.0 0.0 00 228.6 00 286 4 11.1 33.3 44.4 0 0 0 00 0.0 0.0 215.4 0.0 15.4 0 00 0.0 0.0 134 62 196/68.431.400. 5 1 7/4/28.6100. 3 9 166.7333.100. 8 5 13.6/.5 38.5.100. 1950 Number Per Cent 1951 Number Per Cent Number 1952 Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain | Doubtiul Total Humber Certain | Doubtful | Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total 0. 100 0.0 10.0 0 0.0 0.00.0 14 14 28. 20 2.0.180 0 0.0. 0.0 0.0 0 0.0 0.0 0.0 2 0.0 813.3952 40.0 10.0/ 50.0 0.0 0.0 30 28 58 19,4 18.1 37.5 0 / 5 0 0.0 0.0 0.0 0 0.0 000.0 3 2 1.9 1.3 3.2 0 0.0 0.00.0 0.0 0.0 0.0 0 0.00.0 0 0.0. 0.000 10.0.0.0.10.0 0 0 0.0 0.0 0.0 0 0.0 0 0.0 0.00.0 0 0.0 0.0 0.0 0 0 0 00. 0.0 0.0 0 0.0 0.0 0.0 2 20.0 0.0 20.0 1 50.0. 0.0 50.0 110.0 0.0.10.0 1 50.00.0 50.0 17 3 34 4 17. 11.0. 0.011.0 4 19 0.6 2.5 0 3/ 200 0.0 20.0 0 4 26 00 2.1 9 1 10 /90.0.10.0/00 0 2 100.0. 0.0 100. 104 51/155/47/32.9 100 150

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Evaluation 0- Balloon 1- Astronomical 2-Aurcratt 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. E insuftic into. 7-Psychological 8- Unknown 9 0ther Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft (3-Light Phenom. + Birds 5-Clouds, Dust, etc. G Insuffic. Into. 7-Psychological 18-Unknown Rother Total aya valion - Balloon |2-Aircraft 3- Light Prenom. 4- Birds 5-Clouds, Dust, etc. 6 Insutfic. Info. 7-Psychological 8-Unknown 9-Other Total E valuation 0- Balloon 1-Astronomical 2-Aufcratt 7- Light Phenca. 4-Birds 5-Clouds, Dust etc. 6 Insuftic into. T-Psycho lo gi cal & Untinown sother Total TABLE_ A18 EVALUATION 0E OBJECT SIGHINGS FOR ALL YEARS BY NUMBER OF OBJECTS PER SIGHTING THREE TO TEN OBJECTS TOTAL 1947 Number Per Cent Number Per Cent Number 1948 Per Cent Number 1949 Per Cent Certain! Doubth Total Certain Doubtful; Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total 10) 2. 11. 39 2.7.6.6 0 156 0.056 1 91 00 9.1 5 12 17 20 4.1 67 0. 0 00 0.0 0.0 0 / 0 0 0.0 0.0 0.0 46 27 13. 180 10.6 28.6 0 1 54 0.0 5.6 4.7 0 2 2 2 0.018.218.2 67.0.0. 6.2 0 218.2 00 18.2 3 4 8 12 16 3.1 5 8 13 20 31 51 0 0 0 00 00 0.0 34 0 34 133 00 13.3 / 3 4 04 12. 1.6 10 10 274 00 214 13 2 15 51 0.8 5.9 0 0 0 5 0 3 47 20.0. 26.7 0 00 0.0 0.0 2 2. 0.0 18.2 18.2 0 00 00 00 0 00 0.0. 0.0 0 0 / 3 9.1 18.2273 0 00. 0.0 0.0 0 0.0 00.00 5. 27.8 00 27,8 0 00 0.00.0. 1 00 5.6 5.6 7 38.9 0.0 38.9 0 00 0.000 1 91 00 9.1 -NOO 00 6.7:6.7 0 0.0 0.0, 00 5 33.30.0 33.3 1 47 0.0 4.2 0 3 16.7 0.0 16.7 0 0 3 20.0 0.0. 20.0 0 00. 000.0 0 00 00 0.0 188 6/ 255173.126.3.100. 11 118/94.4 56 100.1 5 6 11 45.5 54.5.100. 4/ 15/23.3 26.7100. 19,50 ...1951 1952 Number Per Cent Number Per Cent Certain Doubtlul| Total Certain Doubtful Total Certain Number Per Cent Number Per Cent Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2 0 212.5. 0.0 12.5 0 00 00 0.0 6 1 13 3.2 3.8 7.0 0 0 0.0 00.00 1. / 5 250. 6.3 31.3 0.002 3. 0. 4 10.0 30.0.40.0 110 16 3.8 5.4 1 10.00.0 10.0 37.23 0 0 0 0.0 60. 20.0 /2.4 32.4 0. 0.0.0000 0.0. 0.0 0.0 0 0.0 0.0 0.0 4 6 10. 22 32 54 4 5 9 2.2. 2.1 4.7 0 00 0.0 0.0 0 0 0.0 0.0 0.0 0 0.0. 0.0 0.0 2 0 2. 12.5 0.0.12.5 0 1 10.0. 0.010.0 21 0. 21 1.3 00 11.3 0 0.0 0.0 0.0 0 0.0 0.0 0.0 2 0.0. 1.1 5 31.2 0.0/312 2 13. 6312.6 14.1 2 16 81512.5.100. TABLE .. A79 3 / 1 EVALUATION NUMBER 3 30.0 0.0 300 5/ 0 51 275. 0.0 215 0 1 10000/00 1 9 43 05 48 3 10/70.030.0/100 134/ 51185725 275/100. SIGHTINGS FOR ALL YEARS BY OF OBJECTS PER SIGHTING, ELEVEN OR MORE OBJECTS TOTAL Per Cent Number 1947 1948 1949 Per Cent Certain Doubtful Total Certain Doubtfull Total Number Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2,15 1.5 3.0 6./ 4.5 10.6 0 0 -0 0 00 00 0.0 0 00. 0.0 0.0 0 00 0.0. 0.0 0 _ 0 00 0.0 0.0 / 10.0 25.0 25.0 00 0.0 0.0 2 3 3 8. 3 25 4 8. 30 91 12.1 0 0 00 00 00 125.0 0.0 25.0 0.0 12.512,5 3 4.5 0.04.5 0 0.0 0.0. 0.0 4 4.5 1.5 6.0 0 00 0.000 0 0 00 00 0.0 00 0.0 0.0 0. 00 0.0 0.0 2 2 25.0 0.0.250 ..e 0. 00 00 0.0 0 8 1210.012.1 0 0 00 00 00 0 00 0.0 0.0 0 00 00 0.0 0 00 00 0.0 0. 125.0 00 250 2 225000.250 4 4.5 1.5 6.0 2 16. 7 16.7.334 < 0 1 250 00250 1 0 1125 0.019.5 0 25 37.9. 0.0 31.9 4 1 5 61 15 76 0 0 4 7 0.0 6k. 1 0 0 0 000000. 112.5 0.0 12.5 0 00 00 00 0 0 0 00 00 00 1 1 125 0.0 12.5 53 13166.80 3197100. -5l / 6 83316.7 100. 3 1 1 4 75.0 25.0100 | 11 / 8 81.5/12.5100. 1950 195L Number Per Cent Number Per Cent Number 1952 Per Cent Number Per Cent Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain | Doubtful Tolal Certain Doubtful Total e 0.00.0.000 0 0 00.00 0.0 1 50.0. 0.050.0 0 0 0.0.00.0.0 0 0.0 00 0.0 0 00 0.00.0 0 0 2 24. 2.4 4.8 0 0 00. 0.00.0 5 73 4.9 12.2 0 0 00 0.00.0 5 0 0 6 24 12.214.6 0 0.0 0.00.0 0 3 7.3 0.0 73 / 1 00. 20.0 200 0 1 24 00 24 0.22. 00. 0.0 0. 00. 0.00.0 0. 00 0.0 0.0 0 00 0.0.0.0 0 1 20.0 0.0 20.0 4 4. 4.8 0.0 9.8 0 0.0 0.00.0 0 0.0 0.00.0 0 0 00 00 0.00 0 1 50.0 0.0:50.0 2 0 2 400 0.0 40.0.17 0 11 41.5 0.0 41.5 0 20 00 0.0 1 20.00.0 20.0 2 3 49 2.4 7.3 2 0. 2 10000.0100 4 1 15 80.0 200/100/32 9 4/780/22.0/100 151

━ PAGE 161 ━

Evaluatior a Balloon . I- Astronomical i 2-Aircratt 7- Light Phenor 4-Birds S-Clouts, Dust, etc. 6 Insuflic. Into. L-Psycholorical 8 Unkno we S-Other Total TABLE _ A80 EVALUATION NUMBER DE OBJECT SIGHTINGS FOR ALL YEARS B4 OF OBJECTS PER SIGHTING, NUMBER OF OBJECTS NOT STATED ALL YEARS 1947 1948 Humber Per Cent Number Per Cent Number 1942 Per Cent Number Per Cent Certain Doubttul Total Certain Doubtulj Total Certain Doubtful Total Certain Doubthd Total Certain Doubtful| Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Totäl .3 4 65 22 8.7 / 33.3 0.0 33.3 0 00 0.00.0 - 00 0.00.0 12 23.9. 2.2 26.л NOOSONG 5 65 43.108 0 0 00 0.0 2.0 1 00 25.0 25,0 • 40.0 0.0 40.0 20. 0.0 0.0 3 43 22 6.5 0 00 00 0.0 00 0 00.0.0. 0.0 0.0 1 0.0 25,0 25.0 0.0 0.0. 0.0 0.0 0.0 3 65 0.0 6.5 0.0 00, 0.00 0 0.0.0.000 0.0 0.0. 0.0 0 0.0. 00|0.0 0 0.0. 00 00 1 0 00 0.0 0.0 0 0.0 0.0 1/ 23.9 0.0 23.9 0.0 2.2.2.2 510.9. 0.0 10.9 2 0 0 2 12k7 0.0 kh 0 00. 0.0.0.0 0 0.0 0.0 0.0 00 N 0 2 50.0 0.0.500 2 2 0.0 40.01 0.0 40.0 0 0 0.0 0.000 0.00.0 0 0.0. 0.0 00 / 20.0 0.0 20.0 2 4.30.0. 43 0 0 00. 0000 0 00 0.0 0.0 0 00 0.0 0.0 40| 6 46 87.013.0 100. 3 0 3 100.0 0.0100 2 4|50.0, 50.0100. 5 . 5100.0 0.0100 Evaluation o-Balloon 1-Astronomical 2-Aircraft ,3-Light Phenom. 4-Burds i5-Clouds, Dust, elt. 6 Insuffic. Info. I-Psychological 18-Unknown 9-0ther Total 1950 Number 1951 Per Cent 1952 Certain Doubtful! Total Certain T Doubtful Total Certain| Duti Total Certain Doubtill Total Certain Doubtil Total Certain Dout Tal Certain Doultal Total Certain Do til Total 0 00 0.0,0.0 0.0 0.00.0 00 0.00.0 2 00 00 0.0 0 0 10.0 0.0. 0.0 0.0. 0.00.0 0 0 0.0. 0.0 0.0 0.01 0.0 0.0 0.00.000 0.0 0.00.0 2 9 31 2 3 3 65 3.2 9.7 1270 00 29.0 2 0 0.0 00. 00 0.0 0.01 0.0 2 0 0 0.0 0.00.0 100.01 0.0100.0 3 5 2 3 0 3 9.7 65.16.2 65 0.0.6.5 9.1 0.0 9.7 0.0 0.00.0 9.1 0.0 0.0 0.0 0.01 00. 0.0 0.0 0.0 9.1 3.2 3.2 0 0.0 001 0.0 0 0.0 0.0. aл 4 0 4 100.0 0.0.100.0 0 12.9 0.0.129 00 00 0.0 1 13.2 • 0.0 3.2 100.0 0.0.100. 2 0 2 100. 0.0/100. 21 4| 3/87. 1 129:100. 152

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Evaluation 0- Balloon l-Astronomical 2-Aurcratt 3 Light Phenom 4-Birds S-Clonds, Dust, etc. Flesaffic. into. 7-Psychological # Undoma 3-0te Total Evaluation O-Balloon 1-Astronomical 2-Aircraft 3-Light Phences 4- Birds 5-Clouds, Dust, etc. G-Insuffic, Into. 7-Psychological 8- Unknown s-Other Total Evaluation 10-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4 Birds 5-Clouds, Dust, ec G Insultic. hfo. Z-Psychological 8. Unkrow S-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircratt 3 Light Phenon. 4-Birds iS Clouds, Dust, etc. 6 Insullic into. 7-Psychological & Underran Total TABLE ABL EVALVATION DE ALL SIGHTINGS BY DURATION OF SIGHTING, ALL YEARS 5 SECONDS AND LESS 6-10 SECONDS 11-30 SECONDS 31-60 SECONDS Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 3 710 0.7 1.6 2•3 3 5 8 1.8 3.0 4.8 7 12 19 2.6 4.57.1 // 20 4.6 5.610.2 143 143 284 32.7 32.7 65.4 44 28.72 26.316.8 43.1 63 / 17.4 28 46 28 56 6.4 128 17 6.4 23.8 6.4 24 14.4 8.4 22.8 46 36 82 11.4 13.6 31.01 2 2 0.5 0.5 1.0 14 4 38 0. 6: 2.4. 3.0 2 3 0.4 0. 81.2 15 39 0 10 25 7.7 5. 1 12.8 22 7/ 19.9 11. 2|31.1 2 2 0.01.0. 1.0 2 4 1.5 0.9 1.4 0. 6 0. 6 1.2 0.4 0.4 0.8 2 0.2 0.2 0.4 0 0.0 0.0 0.0 19 19 2 4.3 0.0| 4.3 0.0 39 39 0.5 0 5.4 0.0 0.0 5.4 0. 0l 0.5 0.0 8.9 0.01 8.4 3/ 3L 18.6 0.0 18.6 Nomo 0.0 16 C.0 0.8 0.8 0.8 1.0 8 1/ 3.0 10 3 13 2.3 0.7 3.0 9 0 1.9 2|1.2 9 56 21.1 0.0 1.2 5 0.021.0 _141.9: 3.4| 5.3 61 3 -0000 2 3./ 1.0 3 2 6.6 1.0 61 31.1 5|1.5 0.513.6 0.0 0.0 0.0 6.6 1.0 0.0 31. 1 1. 0 2.5 249188437570439100115 52 167689 311 180183 82 265 691 309100.148 48 19675.5 245100. 61 SECONDS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES NOT STATED Number Per Cent Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtfull Total Certain | Doubtfut Total Certain • Doubtial Total 65 ertain | Doubtful Total Certain Doubtful Total Certain Doubthul Total Certain Doubtial Total 43108 12.8 8.521.3 8.2 58/40 15.6 11.0|26.6 13|54 16.91 4.8 21.759 91 16 27 2.2 3. / 5. 3 6.9 3.8 10.7 43 15 60 8.2 42 37 17 32 3. 2: 11.4 54 /4.9 6.8 217/37 93 230 /6.1 10.9 27.0 71 6/ 138 15.2 12.01 27.2 45 15 63/06 8.2 12.0.20.2 13 15 28 5.2 6.0 11. 2 0.4 64 49 13 3 7 1.4 2.2 2.8 3.9 0. 8 1.2 2 9.9 0.8 5.8 15.7 6. 21 I. / 3 7 1. 6 0 0.2 0.8 0.2 0.0 0.2 0.0 1.6 0.2 0.2 3 0.2 10.1. 1.2 0.0 1.2 2 4 0.6 0. 0.8 44 3 0.5 0 4 44 9 B.7 1.4 0.0 0.4 1.0 4 4 0.4 0. ) 8.7 39 1.0 0.8 1.8 з 39 7.4 0.0 0.0 1.6 1.61 - 7.4 15 6.0 0.1 6.0 0143 16.8 5 0. 0 11.8 0.0 0 " 5 2.0 14227.6 2.1 0.0 2./ 0.4 1010.9 141 27.6 119 2.4 2 0.2 1.1 16 01922.6 0.0 22.6 66 66 26.5 0.0 265|177 1 177. 20.8 0. 0 20.8 19 3 22 3.7 0.6 4.3 9 25 3.01 1.74.7 13 3 3 5.2 1.2 C.4 44 6. 50|5.2 0. 7 5,9 370138 508 72.81 27.2/180371|256527704 296100199 50 249 799|20.1108 665 187 852 78.1 21.9100. TABLE A 32 EVALUATION 5 SECONDS 1942 ALL SIGHTINGS вУ DURATION OF 516HTING , AND LESS 6-10 SECONDS 11-30 SECONDS 31-60 SECONDS Number Per Cent Certain Doubtful Total Certain Doubtfulf Number Per Cent Number Per Cent Number Per Cent Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total 0 0.0 0.0 0.0 9.1 90.9 0 6 0D 000 0.0 4 6.2 0.0 0.0 0.0 0.0 10 81.8 6. 2 2 75,0 25.01000 4 25.0 0.0 125.0 0 4 3 25.0| 12.5 37.5 0.01 п.6 0.1 0.0 00.00 0,0 6.2 0.0 6.2 0.0 12-5 12.5 0.0 0.0 0 0.0 9.0 0.0 0.0 0.0 00 0 0 0 0 0.0 0.0 0.0 0 0 00 00 0.0.00 0 0,4 0.00.0 0.0 0.0 0.0 9.0 0.0 0 0.0 0 0 0.0 0.0 00 0.0 0.0 0,0 0. D 0.0 0.0 0.0 0.0. 0.0 00. 0.00 0.0 12.5 0,0 1.0 0.0 0.0 0.0 0.0 0 12.5 00 0.00.0 0.0 00 0.0 0 00 00 00 : 0.0 6.2 6.2 0 00 0.0 0.0 9.1 6 375 0.0 375 4 50.0. 0.0 50.0 0,0 9.1 0 0 0.0 0.00.0 / 6.2 00 6.2. 0 0.0 0.0. 00 10 1/ 90.91 9.1 110. 6 2 8175025.0/08142116/875|125 1001 0. 2 8 75.0| 25.0|100. 6/ VECONDS - 5 MINUTES 6-30 MINUTES OVER, 30 MINUTES NOT STATED rer Cent Number Per Cent Number Per Cent Number Per Cent Certain | Doubtful Total Certain Doubtful| Tota Certain Doubtful Total Certain Doubtful Total Certain Dowtful | Total Certain Doubtful Total Certaia Doubtful Total Certain Doubtful | Total 2 2 20.0 0,0 20.0 00 0.0 0 0,0 0,0 0.0 4 4, 6.8 0.0,6.8 0.0 0 0.0 0.0 0.0 0.0 9 6718. 4 6.825.4 00 0.0 0 0.0 0.8 0.0 2 3.4 0 01 3.4 / 10. 0 10.0 0 0.0 0.0 0.0 0,0 0.0 0.0 0.0 11.7 00 /.7 0.0 0.0 0,0 0. 0.0 0.0 0.0 00 0.0 2 0.0 00 0.0 2 20.0 0.0 20.0 0 0.0 0.0 360.0 0.0 0.0 60.0 7|11.9 00 1I. G 0.0 0.0 0.0 4 3 1.7,6.8 4 0.0 40.0 00 40.0 2 40.0 0.0 40.0 10.0 0.0 10.0 12.20.3 00 | 20.3 0.0. 0.0 0.0 14 0 19 23.7 00|23.7 10 10 1o0. 0.0 1100. 5 0 5100.0 0.0 100. 54 51 59 95 8.5/100. 153

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For non 0 Balloon 1-Astronomical 2-Aucraft i3-Light Phenom. 1-Birds S-Ctouds, Dust etc. 6 Insuffic Into. i7-Psychological 8- Unknow 3 Other Total Evaluation o Balloon il-Astronomical 2-Aircratt 13-Light Pheno 34-Birds 5-Ctouds, Dust, etc. 6 insultic inlo. 7-Psycho logical B. Uniona 9-Other Tital Evaluation D-Balioon 1-Astonomical 2-Aircraft 3-Light Phenon. 4 Birds S-Clouds, Dust, etc 6 Insuffic. Into. 7-Psychological B- Unknown 2-0ther Total TABLE A83. EVALVATION OF ALL SIGHTINGS BY DURATION OF SIGHTING 1948 5 SECONDS AND LESS Number 6-10. SECONDS 11-30 SECONDS 31-60 SECONDS Per Cent Certain Doubtful Total Certain Doubttul Totat Number Per Cent Number Per Cent Number Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total Certain Douatful Total Certain Doubetul, Total Certain Doubtful Total 2 31 2.9 5.9 7 11.6 1,3 0.0 5.6 5.6 0 0.0 16.7146.7 0 0.0 0.8 0.0 1L 32.4500 5.9 4 2 22.2 11./ 9.0 0.0 33.3 0.0 8. 3 8.3 0.0 0.0 0.0 2 2 5.9 1.01 0 0.0 8.3 0.0 8.3 3 60.0 0.0 60.0 2.9 0.0 2.4 0.0 22.2|22.2 0.0 2.9 0.0 0.00 0 8.3 8.3 0.1 0.0 0.0 0 0.0 2.4 0. 0 0.0 0.0 0.0 0.0 00 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 0,0 2 5.9 0.0 5. 5.6 0.0 5.6 8.3 00 8.3 20.0 20.0 0.0 0.0 00 0 220.6 0.0 20.6 0.0 1.9 0 6 0 0.0 2.0 0 0 0.0 0.0 0.0 0.0 0 33.3 0.0 33,3 4/7 0.0 41 0.0 2.9 0.0 0.0 0.0 0,0 8.3 8.3 0 20.0 0,0 20.0 20 1434 158.8 41.2 100. 21/86.1 38.9/00. 2 12,58.31 41.7 100. 8 31100.0 0. 0100. 61 SECONOS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES Plumber Per Cent Number Per Cent Number Per Cent NOT STATER Per Cent Certain Doubtlul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Number Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 6.7 26.7 33.4 3 13.3 7 5 8 13.0 21.7 34.7 50.0 0. 0 30. 12 17.0 $ 30.4 4.3 34.7 4 33.3 33.3 6 36/1.3 7.0.14.8 2 3 6.7 20.0 0.0 22 25.6 41.9 10.0 6.7 26.71 4.3 4.3 8.6 0 0.0 0.0 0.0 0 8.3 4.3 o,8 4.3 8 5.8 3,5 9.3 0.0 1.2 1.2 0.0 9.0 0.0 0 0.0 4.3 4.3 0.1 3 1.2 2.3 3.5 0 0.0 0. 0 0.0 0 00 0.0 0.0 00 0.0 0.0 0.0 2 0 2 / 3.3 0.0 13.3 4,3 0.0 4.3 8.0 12.8 12.8 0.0 0.0 0.0 0 0,0 0. 8 8.3 0.0 6.7 0. 0 6.7 0 0.0 0.0 0.0 0 0.0 2 0.0 0.0 8.7 8 0.9 9.3 0. 0 9.3 0.0 0.0 0.0 8. 7 0 0.0 0.0 3 3.5 4.78.2 8 7 15 53.3 46.7|100. 13 10/23|56.5 435|100. 12 12| 100.0 0.0 108. 48 38.86/55.8. 44.2100 TABLE A84 EXALLATION OF ALL SIGHTINGS B4 DURATION SIGHTING, 1949 5 SECONOS AND LESS 6-10 SECONOS 11-30 SECONDS 31-60 SECONDS Number Teren Nuraber Per Cent Number Per Cent Certain Doubtful Total Certain Doubtial Total Certain Doubtfut Total Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Number Per Cent Certain Doubtful Total Certain Doubtful Total 0.0 0.0 0.0 0.0 0. 0 0.0 0.0 0.0 0.0 0.0 1783 93 0.0 0 0.0 1I. 4 79.0 90.4 6 0.0 42.9 42.9 6 6 30.0 4 10.7 3.614.3 0 4 0.0 3.8 0 0.0 0. 0 3.8 / 7.1 10.0 25.0 .0 0.0 25.0 0 0.0 0.0 0.1 0 0.01 1.0 1.0 0.0 0 7. 0 10.71 0.0 0.0 10.7 0. 0. 4 0.0 3.8. 0.0 0.0 9.0 3.8 + 0 0.0 7. l 3. 6 00 3. k 1.0 0.0 0.0 0.0 0.0 1.0 • 9 186 0.01 0.0 00. 0.0 0.0 0.0 0 0 0 00 0.0 0.0 0.0 28.6 5 0 5 250 00 25013, 013 464 0.046.4 0 0 0 0. 0 0.0. 0.0 0 7.1 0.0 |7.1 0 0 0.0 0.0 00. 01 0 0 0.0 0.0 0.0 11/88/05t1671 83.4100. 71 714 50.9 50.0100/14 6 20 700 38.0100|271 28/96.4 3.0100.: Evaluation 0-Balloon I-Astronomical 2-Aircraft 3-Light Ptenom. 4-Birds 5-Clouds, OusI, etc. 6- Insuffic. Into. 7-Psychological B-Unknown 9-0mher Total 6/ SECONOS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES NOT STATED Humber Per Cent Per Cent Certain Doubttul Total Certain Doubtful Total Certain Duti Total Consin at Total Number Per Cent Per Cent Certaia Doubtful Total Certain Doubtful Total Number Certain Doubtful Total Certain Doubtful | Total 9 10 23.7 2.626.3 2 # 6 4.4 8.913.3 0 0.00 0.0 0.0 5 0 5 3.9 0 0 3.9 5 5.3 13. 218.5 6 0 613.3 0.0 13.3 4 17.6 5.9 23.5 42 30 27 32.8 23.4 56.2 2 13.4 5. 3/23.7 13 . 18 | /I. / 28.9 40.0 0.0. 0.0 0.0 5.9 5.9 10 0 0.0 0. 0 5 0.0 15 7.8 3.9 11.7 0.0 0.0 0.0 0 0.0 0.0 0 0.0 0.0 0 0 0 0.0 6 0.0 0.0 0 0.0 0.0 0.1 0.0 0.0 0 0 0.0 0.0 9.0 0.0 10 0.0 0.0 0.0 0.0 0.0 4.4 0 0.0 0 0.0 0.0 00 0 6 1/5.8 0.0 15.8 0 0.0 5.9 0.00 0 0 0.0|5.9 20 20 15.6 0,0 15.6 0.0 N0/0/ 0 0.0 0.0 2. 2 0.0 2.2 0.0 0. 9 2 13.2 0.0/3.2 0.0. 34.4 0.0 1.6 0.8 5 1.6 11 24.4 2.6 0.0 3.6 1. 2.2. 0.0 2.2 00 35.3 0.0 35.3 // 8.6 0.0 8.6 - 24.4 0.0| 29.4 32.3 0.0 2.3 30! 8 38|73.9 21/100. 281 17 45 622| 37.810015 2 17 88.21 11.81100. 93/351/28|72.7 27.31100. 154

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Evaluation lo Balloon - Astronomical 12-AIscratt 3- Light Phenom. 4-Bisds S-Clouds, Dust, etc. 6 Insuffic Into. 7- Psychological B. Unknown 9 0mher Total Evaluation 0-Balloon 1-Astronomical 2-Aircsaft 3-Light Phenom, 4-Birds $-Clouds, Dust etc. 6- Insuffic. trio. 7-Psychological 8- Unknown s-other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft -3-Light Phenom. 4 Birds 5-Clouds, Dusl, etc. f-Insuftic Into. 7-Psychological 8- Unknown 19-0ther Total Fut wann 0-Balloon 1-Astonomical 2-Aucraft 3 Lipht Phenom, 4 Birds 5 Clouds, Dust, etc. 6- Insuffic into. 7-Psychological 8- Unknown somer Total TABLE A85 ExALUATION DE ALL SIGHTINGS BY DURATION OF. SIGHTING, 5 SECONES AND 1950 LESS 6-10 SELONDS 11-30 SECONDS 31-60 SECONDS Numbes Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful! Total Certain Doubtful Total Certain Dorbtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubiful Total Certain Doubtful Total 0 4,0 0.0 40 0 0 0.0 0. 0. 0.0 / 0.0 4.0 4.8 - 10,0 00 10.0 12 20. 48.0_ 32.0 80.0 2 3 14.3 28.6429 7 28.6 4157.11 0.057.1 4.833.4 0 0.020.0 20.0 4,0 0.01 4.0 7 23.8 9.5 33.3 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 200 00 200 0.0 00 0я 0.0 0.0 0.0 0.0 0 0.0 0.0 0 0.0 0.0 0.0 0 0 0.0 0.0 1.0 0.0 0.0 ..0.0 0.0 0.0 0.0 0.0 00 0,0 0.0 0.0 0.0 8. 0 00 80 п.D 4.8 0.0 0.0 0 00 0.0 00 4.0 0.0. 4.0 2.0 0.00.0 17 8 25/68.032.0100. 0 D 5 0.0 0.0 4.8 0.0 0,0 0.0 0.0 0. 0 0.0 9,0 23.8 0.0 0 0.0 0.0 0.0 0.0 0.0 23.8 00 0,0 0 0.0 0.0 0 0.0 0.0 00 160.0 0.0 40.0 1 10.0 00 10.0 2 2 7.4 28.6180.117 4 21 810 19.0 100. 8 2/0/80.020.0 100. 61 SECINES - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES NOT STATED Number Per Cent Number Per Cent Certain ! Doubtful Total Certain] Doubtful Total Certain Doubtful Total Certain Doubtful| Total Number Per Cent Number Per Cant Certain Doubtsul Total Certain Doubtful Total Certain Doubtsul Total Certain Doubtul Tota 5 6 8.4 1.8 10.7 4 4 7.1 0.0 7.1 7 12.5 1.8 114. 3 0.0 0.0 9.0 0.0 0-0 1.0 0 0 0.0 0.0 0.0 15. 0 /5 1268 1.0 26.8 1. 8 0.0 16 0.0 1.8 13 4 3, 0 3 3 4 17 21.7 6.7 28.4 8 6.7 0.0 6.7 32.0 0.0 32.0 3 8,0 44,0 12.0 4 0 N 5.0 6.7 11.7 5 0.0 20.0 20.0 00 0.0 0.f 00 0.0 00 0.0 5 20 17 0 6 4.9 1.05.9 13/19.6 10.830.4 0.9 0.0 0.0 0.0 0.0 о рО 0.0 0.0 0.0 0.0 0.0 3 0.0 5 0.0 5.0 3 5.0 0.0 0 367 0.0 000 4 16.0 0.0 0.016.024 0.0 0.0 0 3 0 00 2014.7 2.9 14.6 0.0 0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 Z4 23.5 0.0 0 0.0 23.5 0.0 0.0 16 28.6 28.6. 0.27 36.7 3 6 5 20.0 8,0 20.0 0.01 18 18. 17.6 5.4 0.0 /7.6 5.4. 10.8 3 1.7 5.0 6. _ 0 0.0. 0.0 3 2.0| 09 2.9 5/1 5 56 91.1 8.9 100. 49 1//6.0817 18.3100. 19 6 25 76.024.0100. 86 16 102/84.315.71100. TABLE A8k EVALUATION 195/ OF ALL SIGHTINGS B4 DURATION DF SIGHTING 5 SECONDS AND LESS 6-10 SECONDS 11-30 SECONDS 31-60 SELONDS Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Number Per Cent Number Per Cent Certain Doubtful| "Total Certain Doubtful! Total Certain Doubtful Total Certain Doubtful Total Certain Doubtiul Total Certain Doubtful Total ? 0 0.0 П. р 1.0 10 12 58.8 11.8 70.6 5.9 0.0 5.9 00 1.0 0.0 0.0 0.0 0,0 1.0 0 0.0 0.0 0.0 0.0 0 0 0 0 0 0.0 0.0 0 4./ 0.0 9/ 5 0,0 36.4 0.0 36.4 0.0 0.0 0.0 50.0 12,5 67,5 4 0 4 R 0.0 20.0 20.0 12.5 0.0 17,5 27.3 00 27.3 3 0 0 0.0 60.0 20.0 80.0 0 0.0 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0 0.0 9.1 0.0 9.1 0.0 0.0 0:0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 1.1 00 0.0 0 0.0 0.0 0.8 0 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0.0 0,0 0.0 0.0 0 0 0 0 0 0.0 0. 0 0.0 0. 0.8 0.0 0.0 0 00 0.0. 00 4. 23.5 0.0 23.5 0 2 25,0 0.0 25,0 2 2 18.2 00 ,82 0 0 0 01 0.0 0.0 0.0 0.0 0.0 0 0 00 00 0.0 D 0 0 0.0 0. 0 00 0 0 0 00 0.0 0.0 15 2 17/88.2 11.8100. 1 1 8. 875.12.5 100. 1D 1 1 909, 91/100. 3/ 2 5 60.0/40.0100. 6/ SECONDS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES NOT STATED Number Per Cent Per Cent Per Cent Per Cent Certain Doubttul " Total" Certain Doubtful! Total Number Certain | Doubtful! Total Certain Doubtful Total Number Number Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total 2 3 7.7 3.8: 11.5 2 8.3 0.0 / / /2.51 .3 7 16.6 4.9 11.5 9.0 3.8 3.8 11.5 38 15.3 0.0 38 0 0,0 3.8 0.0 0.0 0 0.0 0.0 3.8 0.0 0.0 3.8 0.0 3. 8 0.0 3.8 3 13 50.0 150.0 7.7 0.0 7.) 5 26 80 8 19.2 100 3 2 0 0 7 19 0 8.3 / 4 12.5 4.216.7 0.0/75 4 2 12.5 2.52510 6 8.3 13 4.9 16.4 2/.3 4 16.7 25. g 1 12.5 - 0.012.5 3.3 3.3 6.6 4.2 0.0 0.0 00 4.2 0 9,8 0 0.0 0.0 0.0 4.2 0.0 4.2 000 0,0 00 0.0 T. G D.0 1. 6 0 0 0.0 o. 0 0N00 0.0 00 0.0 0.0 0.0 11.0 0.0 00 0,0 0.0 0.1 10.0 25.0. 0.075.0 16.4 0.0 14-4 00. 00 /11.6 0.0 1.6 Z. 129.2 0.0 3 129.2 0.0 2.25,0 0.0250 zz 34.1 0.0 12.5 12.5 3 36.1 0.0 0 0.0 00. 0.0 3 4.9 0.0 4.9 5 24 79.2, 20.8 100. 11 8 875 12.5100. 46 15/6/754 246100. 155

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Evaluation o Baltoon J- Astronomical 2-Arcratt i3 Light Phenom. 4-Birds S-Clouds, Dust, etc. G- Insuffic into. 7-Prychological - Unknown $ Other Total TABLE A87 EVALUATION DE 1952 ALL SIGHTINGS BY DURATION SIGHTING, 5 SECONDS AND LESS 6-10 SECONDS 11-30 SELONDS 31-60 SECONDS Per Cent Number Per Cent Certain Doubttul Total Certain | Doubttul; Total Certain Doubtful Total Certain | Doubtful Total Number Per Cent Number Per Cent Certain Doubtful| Total Certain | Doubtful Total Certain | Doubtful Total Certain Doubtful Total / 5: 6 0.41 3.0|2.4 4 2.1 3.6 6. 3 9 14 2.7 4976 8 11 14 5.7 7.9 13.6 11 39 1 32/38.4 15.5153.9 211. 7-4. 48 98 9.8119.6 0.4 29 19 15, 44 25.9 13.4 39.3 13 32 17.0 11.6 28.6 0.9 0.0 0.4 26. 35 9 35|14.1 4.9 19.0 10 15 7.1 3.610.7 33 68 18.9 17.836.7 24 20. 44 17.114.3 31.4 3 08. 1.2 0 / 2 0.5 0.5 1.7 0.9 1.0 2 0.0 1.4 0.5 1.4 4 0.4 1-6 0.9 0.4 0.4 1 2.8 2 0.8 0 C. 1/ 4.5 0. 0j 4.5 0 0 7 0.0 0.5 0.0 14 2.1 0.7 1.0 0,0 10.0 2 2 0.0 1./ 0.0 0.0 0.0 6.21 0.0|6.2 1/ 5.9 0.0 5.9 11 7.9 0.0 7.9. 2 0.8 0.01 08 0 0. 0) 0.0 9.0 7 2.7 1./ 3.8 1.4 0.0 1.4 2. 6. 1 26106 0.0 10.6 19 17. 0 0.01/7.0 7. 1 3.7 0.8 4.5 0 0.9 0.0. 0.9 33 4 33/7.8 0.0 17.8 40 8122.2 4.3 6.5 0 2 40 3 28.6 0.0 28.6 0.7 1. 4 7./ 170/75 2451694 30 6 100. 79 33 11270.5 29.5 100. 121 64/8565.4 34.6100 9941140 70.71 29.3|100. Evaluation a Balloon. 1-Astronomical 2-Aircraft 3.Light Phenom. i*- Birds 5-Clouds, Dust, Mc 6 Insuttic. Info. 7-Psychotogical 8 Unknown S-Other Total E/ SECONOS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES NoT STATED Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubttull Total Certain Doubtful! Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total 46 36 82 12.7 2.9. 22.6 62 45117 16.8 12.2 2901 27 12 39 14.4 6.4 20.8 1./ 2.2 351 2257 5. 3/3.7 4 912 3. 3 8.4 2 3. 56113 15.4 31./ 15 38 6.2 4.110.3 77 14 41/4.4 7.5 319 47 1663 11. 3 3.8 15.1 : 15.7 73 3.6 11. / 19.7 /1 920 5.9. 4.8 110.7 84 11.5 1.7 0.8 2.5 32 13 41 H8t 36 8.720.2 / 9 3.5 1.6 5.1 0.3 0.0 0.0 Z 6. 0 0.3 wiw 0. 5 1./ |1.6 0.7 0.2 0.4 /. 6 0.0 1.6 4 1.0 0.0 I.P 8 0 0.3 1.9 2.2 185.0 0.0| 5.0 3... 0.81.9 _3 79. 0 0.8 29 7.8 711 /0 % 12 0 10127.8 0.0 27.8 27 0 12 3.3 0.0 | 3.3 0 0 77 4. 15 1.9 20.8 3.0 0.5 0.0 0. 0.0 /.) 1. 3 4 0.0 2.1 4 7.8 0 2.1 0.7 0.2 0.9 4.3 O.A 4.3 1.9 71 7/ /7.1 0.0 5 17.1 2.1 0.5 2.6 2 0.5 0.2 0.7 20.8 53 0 53 28.3 0.01 106 0 106 25.5 0.0 25.5 4./ !! 4.3 1.6 2P.3 5.9 19 20 4.6 0.2 4.8 250 113|363 68.9 31.1100. 12571113 370 69.5 30.5 100. 146 411187 781 21.9108. 338 78 1416 81.2 18.8,100. 156

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Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic, Info. 7-Psychological 8-Unknown 9 Other Total Evaluation O-Balleon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuffic. Info. 7-Psychologica) 8 Unknown 9-0ther Total Evaluation 0-Ballcon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuffic. Info. T-Psychologicat 8-Unknown 9-0ther Total Evaluation p-Balloon• 1-Astronomical 2-Aiscraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Info. 7-Psychological 8- Unknown 3-Other Total TABLE A88 EVALUATION OF UNIT SIGHINGS BY DURATION OF SIGHTING, ALL YEARS 5 SECONDS AND LESS 6-10. SECONDS 11 - 30 SECONDS 31-60 SECONDS Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain | Doubtful| Total Certain | Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Douttful Total Certain Doubtful Total 5 8 88 142.2 3) 4. 1 24 35.2 12/ 106227 340 29.863.8 36 5. 10 15 23 266.9 2 10 19. 55 6.1/1.6 23 59 27 12043.7. 38 14: 52 174-62238 14. 8 22 8.6 4913.5 23 46 65 6513.020 11 31: 14.8 8.122.9 40 33 7318.3 15.133.4 31, 22 53 19013532.5 2 2 4 06 0612 1 + 3. 0.1 1.3 2.2 2 05 05 10.0 4 0.6 1.11.7 1, 06 1.9 1.3 100 01 0.7 1 205 05 10 5 2 00 0.9 0.9 2 18 13 09 1:3 1 0 19 31 9 0 1 9 3.3 00 5.3 6 e0 00 0.0 8. 0 8 59 00 5.9 2 06 00 0.6 0 0. 31 8.7 00 87 24 0 0 00 0.0 0.0 0 24 178. 00178 38 2 2 23 0.93.2 0 38 174 0.0 174 43 000010 00 12 12 3.1 06 3.7 00 08 0.0 6.7 00 67 1.2 0011.2 43261 00 264 3 12 25 08 3.3 2 0. 2 15 0015 5 6 11 23 28 51 3 2 5 1.8123.0 12/2/44 95659.5.48.5100. 14 41 135/69. 6. 30.4100.1/9 69 218 68.3131. 7 Voo. 1/181 45163/72.41 21.6.100. 6/ SECONDS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES NOT STATED Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Nunder Per Cent Number Per Cent Certain | Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 55 40 95 13,6 13 9.9.23.5 67 45/12 /39 10726.10 2/ 2,0 3.2 5.2 34. 18. 49. 8.1 1.61.1 56 54 110 / 3.8 13.3 2711 40 44 9.5/0.520.0 7 4. 1/17 1.0.27 15 6 21 3.61 1.4 5.0 0 1 0.2 0.0. 0,2 0 0.0 120.2 35 3,3 10 2 12 17 17.8 6123.9 5/ 25 %6 3.811.5 16 19 16.8 5.1 8.124.9 7.7 61/60.15.0 9.324.3 10: 20 2 8.5 5.110.2 99 35 /10 10.9 5.216.6 05 1.0 2 0,8 0.3 1.1 1.0 00/0 03 03. 0.6 3 3 0.0 0.7 0,7 / 2 0,2 02. 0.4 130 17.4 0.0.74 36 0 0.51 00.05 0.2 0.0 0.2 30 0 0 36 8.6 0.8 8.6 5.6 _8.0 5.6130 0130. 19.7 0.0 19.2 1.2 1.0 _ 2,2 0 9 21 0.0 2.1 629 0.53.0 2 10. 1.2 0,3 /5 107 9 9 107.26.4 00 264. 86 0 _ 86 204 0.5.20.4 1 17 239.0.0 239 121| 0121, 18.4. 0.018.4 15: .3 18, 3,7, 0.7 4:49 15 6 2/ 36. 1.4 5.0 8 3. 11 41 15 56 35 5, 40 53. 0.8 6.1 294121405/701 299/100.1303118 421/20 28.0100. 1153 4419X277223/00.1524/ 35659 29.5.205100. TABLE A89 EVALUATION OF UNIT SIGHTINGS BY DURATION DE SIGHTING, 19,47 5. SECONDS OR LESS 6-10 SECONDS 11 - 30 SECONDS 31-60 SECONDS Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total Cerlain Doubtful Total Certain Doubtful Total 0,0 00 8.0 00. 00 6 2 75.0 /25.87.3 ON 1 500.5.0/000 / . 0. 2.1 0.0 2.1 00 0.0 3 214 0.03/4 0.0 / 0.0 0.0 0.0 2:14.3.14.328.6 0.0 0 00 0.0 D.0 2.1 7.1 0.0.14:3.143 00 00. 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0 00 0 00 0.0 0,0 0 0 100 00 0 0.0 0.0 0 0.0 0.0 0.0 0.0 0 0.0 0.0. 0.0 0.0 0.0 0. 00 000. 0 0.0 0.0 0.0 0 0.0 0.0 0.0 00. 0.0 0 00 0.0 0.0 0.0. 0.0 0 0.0 0.0 0.00 0.0 00 0.0 0 9. 125 00/25 0 0 0 0 00 0.00.0 0 0.00,0 0 0 0/0 2 0 D 114.3 0.0 0.0 0.014.3 00 0.0 0.0 _ 0.0 0.0 0.0 0.0 1 0.0 7.171 0,0 0.0 0.0 5 351 0.035.7 / 2.1 0.0 7.1 0 0 / 571 0.0,571 -0 10.0 0.0 0.0 2 8/875 125100.1 2 21 4/50.0 50.0/00.1/2 2/14|852 14.3 100. 5 7/7.4/28.6/100. 6/ SECONDS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES NOT STATED Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain | Doubtful! Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2 286 00. 28.6 0.0 0.0 _75. 0.0 7.5 0,0 0.0. 0.0 0.0 114.3 0.00.0 0.014.3 010.0 0.01 0.0 00 0.0 0.0 1.14.3 0.014.3 0.0 0.0 0.0 0 0 0 0 28.6 0.0.286 1/4.31 0.0/4.3 2 0 0.0 1 0.0 0.0 0 8.0 0.0 2 50.0 0.0 2.50.0 0.0 0.0 00 7 4 1113.2 7.520.7 0.0 0.0 0.0 0.0 3.8 0.0 38 1.9 0.01.9 0.0 0•0 0.0 0.0 00 0.0 0.0 0.0 0.9. 0.0 0 0.050.0 0.00.0 3/132 0.0/32 5.7. 1.2 7.6 0.0.50.0 0 11 20.8 0.0 20.8 00. 0.0 0. 7 10001 0.0/100, 4 0 4 0000l 0.0 100. 13. 48 0 13 24.5 0.0 24.5 5 53 906 9.4100. 157

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Evaluation 0 Balloon 1-Astranomical 2-Aircraft 3- Ligtt Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuftic into. 7-Psychologi cal 8- Unknown 90mer Total TABLE AJO EVALUATION DE UNIZ. SIGHTINGS. BY DURATION OF SIGHTING, 15 SECONDS AND 1948 LESS 6-10 SECONDS 11-30 SECONDS 3/-60 SECONDS Number Per Cent Certain Doubtful Total Certain Number Per Cent Number Per Cent Number Per Cent Doubtil| Total Certain Doubtful | Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful! Total Certain Doubtful Total Certain Doubtful Total 0.0 4.0 0 1.0 7.11 7.1 2 00 222 271 Q 0.0 0.0 0.0 5 8 1320.0 32.0 52.0 4. 6 28.6143 42.9 10.0 11.2 /I.) 0.0 2 8.0 0.0 8.8 0 0.9 0.0 0.0 4.6 0,0 4.0 2 2 0.014.314.3 4.0 0.0 4.0 0 0.0 9.0 0.0 0 0 0.0 0.0 0. 0 0. 0 0.0 0.0 0.0 0.0. 0001 1 111 0.0 0 I1.1 0.0 0.0 0.0 0.0 0. 0 0. 0.0 0 0.0 4. 2 8.0l 0/71 0.0 7. / 1/1 0. 9 0.0 0.0 0.0 0 0.0 0.0 /I. / 0.0 0.01 0.0 0.0 19.0 0.0 3 33.3. 0.0| 33.3 / 4.0 16.0 0 4 28.6 0.028.6 00000000 0.0 4.0 4 0 0 0 0. 0 0.0, 0.0 / 1 00 11. 11.1 16 9 25 640| 360 100.1 5. 14643/357/100. 5 4 9155644.4.100.1 0 * 0,0 0.0 500 00 50.0 0.0 0.0 0.0 1.0 0.1 0.0 00. 0.0 25.0 0.025.0 1.0 00 00 D.0 1.01 8.0 / 25.0: 0.0.25.8 4100.0| 0.01/00. Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom 4-Birds 5-Clouds, Dust, etc 6 Insuffic, Into. 7-Psychological 1g-0ther Total Evaluation 0-Ballcon I-Astronomical 2-Aircraft 3-Light Phasom. 4-Birds 5-Clouds, Dust, ec G Insuffic. tnto. -Psychological 8- Unknown S0ther Total 61 SECONDS - 5 MINUTES Number Per Cent 6-30 MINUTES OVER 30 MINUTES NOT STATER Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Ceriain| Doubtful Total Certain Doubtful Total Certain | Doubtful Total 4 2 11.1 11./|222 4 6.7 26.7 33.4 50.0 0.0 50.0 7 27, 3.1 10.8 2 27.2 0 4 26.7 0.0 26.7 4 333 0.0 33. 3 10 1525 15.4 231 38.5 3 133,31 0.0 33.31 6.7 13.4 0.0 8.3 21 .110.8 0 0.0 2 0,0 0.0 0 0 0.0 6.7 8.3 0.0 4.0 0.0 0.0 0.0 0.0. 0.0 0.0 3 1.5 1.5 0.1 2 0.0 0.0 15 0.0 0.0 0.0 0.9 0.0 3.1 4.6 0. 0. 0.0 11.1 0.0 0 0.0 0.0| 0.0 00 0. 00 0. 8 0. 015.4 1/11 0.0 11.1 0.0 0.0 0.0 2 9|77.8| 22.2100. 8 0.0 . 0 0. 0 6.1 6.7 7 15 53.3 46.7/100. 0.0 15.4 0. 0.0 0.0. 0.0 0. .0 6.2 0. 0.6.2 0.0 0. 0.0 4 4.6 6. 2,10.8 12 0/2/00.0/0.0 106.1 38. 22.65/58.5415.100. TABLE EVALVATION OF -UNIT SIGHTINGS BY DURATION OF SIGHTING, 1949 5 SECONDS AND LESS 6-10 SECONOS 11-30 SELONDS 31-60 SECONDS Number Per Cent Certain Doubtful Total Certain Doubtful Total Number rel kill Number Per Cent Kaursel Per Cent Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0 0.0 Certain Doubtful Total Certain Doubtful | 0.0 0 0,0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0. 0.0 56. 62 2 8? 822 2.9 2.9 2.9 3. 2 0.0 28.628.6 3 6 300 30.0 60.0 3 25.0 0.0 25.0 0 0.0 0.0 14.3 14.3 0.00.0 ON L20.0 9.0 20.0 2 /6.7 0.0 16.7 0.0 19 1.4 0.0 0.0 0.0 5.8. 0.0 5.8 0 0.0 4.0 0.0 0.0 1.0 0 00 0.0. 0.0 - N 0-000 _ 0 9.0 0 0 0.0 0.0 0.0 00 0.0 0.0 0.9 0 0.0 0.0 0.0 0,0 9.0 0.0 216.7 0.0 9.0 0.0 0.0 0.0 16.7 0 D.D 0.0 14.3 0.0 14.3 0 101. 19.8 8.3 00 8.3 0 0 0.0 8.6. 00 0 0.0 0 00: 00 0.9 0 2 216 0.0 28.6 0 1 10.0 0:0|10.0 10/0 0.0 0.0 0.0 _4 333 00 33.3 0 / 14.3 0.0 14.3 O 0 0 00 0.0 00 0 01 0 00 0.0 0.0 10 59 69/14.5 85.5.100. 3 7 57.1142.9180.1 11 3/10 700 300/198112 0. 12 100.010.0100. Evaluation 0- Balloon 1-Astronomical 2-Aircraft 13- Light Phenom. 4-Birds 5-Clouds, Dust, etc 6- Insuffic lato. 7-Psychological Total 61 SECONDS - 5 MINUTES Number Per Cent 6-30 MINUTES OVER 30 MINUTES NoT STATED Number Per Cent Number Per Cent Number Per Cent Certain Doubtiul Total Certain | Doubtful! Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total 222 3.7.25.9 2 2 4 8.3 8.316.6 | 0.01 0.0 0.0 3 3 39 00 3.9 4 7 0.01 14.814.8 312.5 0.0 12.5 11.1 21.3 9.1 34 30 139. 5 1.4. 18.5 12.5 12.5. 250 10.0 0.8 0.0 0.0 0.0 9.1 9.1 0.0 0.0 0.01 14.4 d 0.0 0 0.0 00 0.0 1.0 0.0 0.0 0,0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 80. 0. 1 0.0 6 22.21 0.0 22.2 0.0 0.0 0.0 0.0 2 8.3 00 8.3 0.0 9.1 0.0 9./ 8.0 22.4 00 0 0 0.0 1.01 0.0 4.2 0.0 4.2 0.0 0.0 0.0 0.l 2.6 4 148 0.014.8 -29.2 0.0. 29.2 3.7 0.0 3.7 - 4.2 0.0 4.2 36.4 0.036.4 0.014.5 9.1 0.00 4.1 2 26 00 2.6 20 7.27 741125.9 100. 19 5.24/19.2.20.8/100. 9 2 11 818182:100 5917 26 27.623.4/100. 158

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Evaluation lo- Balloon • 1-Astronomical 2- Aircratt 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuffic info. 7-Psychological 8-Unknown 9-Other Total 0-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuffic. into. 7-Psychological & Unknown 9-Other 10121 Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenoin. 14-Birds 5-Clouds, Dust, etc. 6 Insuffic, info. 7-Psychological 8-Unknown 9-0 ther Total Evaluation O-Balloon 1-Astronomical 2-Aircraft 3- Light Phenou 4-Birds 5-Clouds, Dust, etc. & Insuttic. Into. 7-Psychological B-Unknown sOther 0 0 10 2 Tamal 118 TABLE. 492 EVALUATION DE UNIT SIGHTINGS BY DURATION DF SIGHTING, 1950 5 SECONOS AND LESS 6-10 SECONDS 11-30 SECONDS 31-60 SECONDS Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0 5.0 0.05,0 0 0 0.0 0.0 0.0 00 6.2 62 / 11.l 10 5 15 0.011.1 50,0 25.075.0 / 3(6.7.33.3 50.0 7 37,5 6.2437 0 2 0.0 222222 0/00- 00000000 5,0 0.0 5,0 0.0. 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 00 в 0000N 50.0 0.0 50.0 0.0 0.0 0.0 6 25.012,53725 222.2 0.022.2 0.0 00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 00.0.0 00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 2. 10.0 0.0.10.0 0.0 0.0 0.0 L 0.0 0.0. 0.0 50. 0.0 5.0 000 0.0 0.0 0.0 6.2 0.0 6.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00.0 0.0 0.0 0.0 0.0 0.0 1. 0.0 6.2 00 6.2 33,3 0.0333 0 0.0 0.0 0.0 0 0.0 0.0 1.0 0 0 0.0 0.0 0.0 4.1 0.0:11.1 15 5 20 75.025.0.100. 4 2 16 1667 33.3 100.112 4/b 75.025.0100.1.7 9. 778|222 100.1 6/ SECONDS - 5 MINUTES 6-30 MINUTES Per Cent Number OVER 30 MINUTES Per Cent NOT STATED Certain Doubtful Total Certain Doubtful Total Number Pér Cent Number Per Cent Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 4 5 4 2813,9 9 2 1/ 23/ 5.1.282 0 0.0 5.1 3 27.3 0.0273 4 0 (I.1 0.0 /1.1 5.1 / 9/27.3 4. 5 ../ 2.813.9 3 7.7 7,715.4 3 18,2 2 0.018.2182 4 13 7 5 5.6 1,4 7,0 24 23.0 97 33.3 316 18./ 42 27.3 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 00 0.0 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0.0 8.3 0.0 8.3 3 3 0.0 2.8 7,7 0.0.7.7 / 0 2.5 2.6 0.0 2.6 13 0113 36.1 0.0 36.1 13 013 133,3 0.033.3 3 5 2 2.6.5.1 77 0 0 0.0 0.0 0.0 9.1 0.0 21 22.2 00.22.2 0.0 0.0 2 0.0 182 0.0/8.2 5.6 8.313.9 0.0 0.000 9 2 9 0.0 0.0 0,0 12,5 0.0 12.5 2. 2.8 0.0 2.8 31 5 36 86.113.9100 32 7. 39 822.179 100. 8 31/ 727273102|61 // 72/847.15.3.100. TABLE A93 EVALVATION UNIT SIGHTINGS BY PURATION SIGHTING, 1951 5 SECONDS AND LESS 6-10 SECONDS 11-30 SECONDS 31-60 SECONPS Number Per Cent Per Cent Per Cent Per Cent Certain Doubtful! Total Number Certain | Doubtful] Total Certain? Doebtful Tolas Certain Doubtful| Total Number Number Certain Doubtful Total Certain Doubttul, Total Certain Doubtfull Total Certain Doubtful Total 0 0 0.0 0.0 0.0 0.0 0,0 10 53.3 /3.3 66.6 3 50,0 0.0 0.0 500 0 0.0 0 325 0,0 0,0 0 0.0 0,0 3 0.0 0.0 37.5 0.0 20.0 20.0 0 16.7 0.0 37,5 60.0 20.0 80.0 0 0 0 0 6.7 0.0 0.0 0.0 6.7 0.0 с.0 0.0 00 0.0 0 0.0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 375 4 0.0 0.0 0.0 0.0 0 0.0 0.0. 0.0 0.0 12.5/2.5 0.0 0.0 0.0. 00: 0.0 0.0 0. 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0.0 0.0 0.0.0.0 00 0.0 0.0 0.0 0.0 0. 00 00 0.0 0 0 0.0. 0.0 0.0 0 0.0 0.0 • L26.2 0.0267 33.3 0.0 33.3 12.5 0.012.5 0 0.0 00 0 13 0 о 0.0. 0.0 0,0 0 0.0 0.0 0.0: 0.00.0 0 0.0 0.0 0.0 0.0 0.0. 0.0 2/15 66.713.3100 6 100.0 0.01100. 7 1 / 8/875125/00. 32 5/600 4D.0 /OD.) 61 SECONDS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES NOT STATED Humber Per Cent Number Per Cent Number Per Cent Per Cent Certain Doubtful Total Certain | Doubtiül Total Certain Doubtful Total Certain | Doubtful Total Number Certain Doubtful Total Certain | Doubtul| Total Certain" Doubiful Total Certain Doubtful Total 1 3 8.7 4.313.0 2 2 4.3 43 3 8.7 0,0 8.2 0 12.5 0.0 12,5 2 12.5/2.5.250 4 6 8.21 ЦіІ /2.3 0.0. 4 130. 43 17,6 13.0. 3 8 6.1.16.322.4 4.317.3 2 6 8.7.17.4261 0 / 12,5 0.0/7.5 4 4./ 4.1 L 0 0 4 0.0 2 8.2 4.3 43 / 0.0 43 0 0.0 0.0 0,0 / 2,0 2.0 0 0.0 0.0 0.0. 0.0 4,3 0.0 0.0 0 0 43 0.0. 0,0 0,0 0.0 0 0.0 0.01 0.0 0.0 1.3 0 0.0 0.0 00 0.0 0.0 4.3 4.3 0.0 4.3 0.0 0.0 0 0 0 0.0 0.0. 0.0 2 25.0 0.0 25.0 0.0 4,3 0.0 0 10 10 435 0.043.5 0 26.1 0.0 0.0261 0.0 0.0 2 25.0 0.0.25.0 13 0 0 0.0 0.0 0.0 10 / 20.4 0.0 0.0 20,4 2.0 0.0. 20 13 26.5 0.0 26.5. 0 8.7 0.0.8.7 3 113.0 0.013.0 0 0,0 0.0 0.0 3 3 6.1 0.0 6.1 5 23 78.321.7100.118 5/23 78.3 21.7100. 8 07.5 17.5100.3712 49 755 245 100. 159

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Evaluation , 0-Balloon J-Astrunomical 3- Light Phenom. 5-Clouds, Dust, etc. 6 Insuflic. Into. 7-Psychological 8-Unknown 9 Other TABLE A,94 EXALVATION DE UNIT SIGHTINGS BY DURATION DE SIGHTING, 1952 5 SECONDS AND LESS Number 6-10 SECONDS 11-30 SECONDS 31-60 SECONDS Per Cent Number Per Cent Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful, Total Certain Doubtful Total Certain Doubtful Total 5 120 0.5 23, 2.8 3 3 6 3. 1 31 6.2 4 393/5,5548 26 1541 7 2,5 43 6.8 8 10 18 6.3 10 4/4 7914.2 86. 34 265/5.341.8 23 9. 3214.3 5.6.192 79 32/11 19,21 40 8.2 96/8.3 16 10 26 16.3 10.226.5 30 30 60/8.6.18.6. 37.2 72 20 42 17,5 15,9 33.4 3 0.5 0.9 1.4 0 1.0 0,0 1,0 0.0 0.6 1.2 0.0 1.6. 1.6 3 4 0.5 14,9 0.0 1.0 1.0 0.0 1.4 0.50.5 0.0 0.0 0,0 5.0 0.0. 5,0 6 0.0. 6.1 aNO D.6 0.0. 0.6 / 2,4 0.8, 3.2 0.0 1,21.2 0.0 0.0 0.0 0.0 6.8 0,0 71 0.9. 0.0.0.9 22 0 172/0,0 0.0.10.0 10 3.2 16 09 4.6 0 0 16 0. 6.1 0.0 0.0 6.8 3.1 9 0.0 / 0.6 37 16.3 0.0 /6.3 5 27 0 27/6.8 0.0 / 6.8 2 32 1,0 0.0: 1.0 4. 9 25 31 5.6 1.6 3225.4 3 0.8 0.0. 1.6 0.0.25.4 1.6. 2.4 151| 68/219689 311100.1 69 29 98 70.4. 29.6100. 106 55/61 658342100.1 8739 / 26 690 310100. Evaluation o-Balloon L-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Oust, etc. 6 Insuffic. Into. 7-Psychological 8-Unknow 9-0 ther Tota 6/ SECONDS - 5 MINUTES! 6-30 MINUTES Per Cent Number OVER 30 MINUTES NOT STATED Per Cent Certain Doubtful Total Certain Doubtful Total Certain Number Per Cent Number Per Cent Doubtful Total Certain Doubtful Total Certain / Doubtful Total Certain Doubtful Total Certain Doubiful Total Certain Doubtful Total 40 36: 76 13211.9251 53 37. 90 16.8 11.7285 25 12/37 / 6./ 17|23.8 31 20 , 51 9.0| 5,8 14.8 7 10 10 2.3 3.3 22 14. 36 7,0 44 11,423 13 36 14.8 8.4 232 46 13 5913.4. 31817.2 43 50 93 142 16530.2 31 33 64 98 10.4 20.2 8 15 5.2 45. 4.2 42 77 6912.2 28 20.0 6 3 9 7.0 10 30 13 6. 19 1.9 6.0 / 0.6 1.3 11,9 3 4 0.9 0.31.2 0.3 0.0. 0.3 0 O 0 0.0 00 0.0 2 1.3 0.0 113 0.3 0.0 0.3 0.0 1.0 10 0.3 0.6 0.6 0.0 0.00.3 18 4 77 3 12 0.3 0.6 18 5.9 0.0.5.9 0 27 10 2.3 8.5 0.0. 8,5 445 0.045 1.3 27 25.4 0.0 25.4 2 3.0 0.0 3.0 58 10 0 22 0.0. 2,2 2.6 0.6 3.2 0 58 18.4. 0.018.4. 39 39 25.2 3 13 32 09, 4.1 7 0.0 25.2 10 45 1.96.4 70 23 12 D.3 20.3. 0.0203 3 0.9 7321.2 0.021.2 13 3.5 03 3:8 20/102 303 66.333.7100.222 94 516703297100117 38 155 755245 100. 281 63 344 81718.3100. 160

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Evaluation • Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. 6 Insuttic into. 7-Psychological 8- Unknow sothe Total CyanDelon 0-Balloon 1-Astronamical 2-Aitcraft 3-Light Phenom, 4-Birds S-Clouds, Oust etc. 6-Insuffic. info. 7-Psychological 8-Unknown 9-Other Total Evaluation 0-Baltoon 1-Astronomical 2-Aicraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. Info. 7-Psychological 8-Unknown 9-O ther Total 0 Balloon 1-Astronomical 2-Aircraft 3- Light Phenoma. 4-Birds 5- Clouds, DusL etc. G Insuffic loto. 7-Psychological 8- Unknown sOther Total TABLE A95 EVALUATION. ALL 5 SECONDS AND LESS YEARS DE. OBNECT SIGHTINGS BY DURATION DE SIGHTING 6-10 SELONOS 11-30 SECONDS 31-60 SEcOND Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain (Doubtful| Total Certain | Doubtful| Total Certain Doublul| Total Certain | Douthul| Total Cerlain Doubtl Total Certain Doubtul Total Certain Doublul Total Certain | Doubtful | Total 3 5 8 1.0 1.72.7 4 6 19 35 5.3 2 14 27 4.8 7.5 9 9 18 60 6017.0 82 8016730428058426 19 45 230/6.839.8 22 24 11 35 129 5.918.8 7 16 60 47 10.7 22 44 27 2715.4 18 927159 8.023,9 36 31 67 19.316.7 360 30 19 49 20.012.7327 4 0.7: 0.7 1.4 3 09 18 21 6 01 1421 1 1 00 09 09 1 1 2 3 3 10 : 00 1.3 1.3 127. 7. 3.4 / 00 03 .0.3 0 0.0 0.00:0 2 2 00 1. 1 11 0.000. 0.0 15 52 0.0 5.2 2 0.7.00. 0.7 • 8 71 00 21 00 71 18 0158100 81 11 0 11/23 00 73 221.1 3.3 2 0 2 13 00 1.3 2 27 9.4 00 9,4 3 12 • 31 1.0 4/ 2/ 2 0. 21186 2 6. 0.0 18.6 33 0 33/17 0.0/77.42 042280 00 28.0 0 2 18 00 18 5 1022 27 54 3 2 5 20.1333 1169.117.286 591 40.91/00.|7835 113 69.031.01001124 62/86/667 3331001110 40150\73.3 26.7100. 61 SECONDS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES NOT STATED Number Per Cent Number Per Cent Number Certain Doubtful Total Certain, Doubtful Total Doubttul| Total Cerlain| Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Kumber Certain Per Cent Per Cent I Doubtful Total Certain | Doubtful Total 53 35| 88 14.4 9,523.9 6 63 38 101 16.8 1.2 10.126.9 29 17| 1.6 3/ 12,41 169 7.0, 23.9 43 28 3.6 11.4 3.0 4.6 15, 46 4.002.2 29 15 44 16.9 .8.725.6 62 20 163 52 38 42109 113. 8.619:9 49.10/14./ 133 27.4 37,75 10.1 9.8. 19.9 9 5.2 4.7 9.9 6 60 91.6 0,8 2,4 14 519 3.7 1.3 5,0 2 3 0.6 1 12 1,8 3, 94 10.9 62/71 0.0 0.0 0.0 1.9 110.31 0.3 0 / 1.3 0.3 2 1.2 1,2 2 0.4 0,2 08 3 3 0.0 0,8 0,8 / / 0.0 32 2 0.3 1.3 0.6 0.0 0.6 0.6 14 02 00 0.2 26 0. 26 7.1 7.1 0 32 8.5 8.5 0. 10 5.8. 0.0. 5.8 123 0/23.22.4. 0.022,4 5 9. 1,4 99 1 27 269 25 9 12.4 0.0 24 / 6 2.9 0.6 35 8 10 15 04 1.9 0.0 369 0 71 18.9 0.018.9 3,7 14 1. 15|3.8 23 4.1 15 5 20 401 1.3 5.3 3/1 3 37 21.5 1. 215/24 2 104. 19.0 17.64 0.019.0 4.7. 6 34 53 0.9 6.2 1262: 106 3681712 288/00. 274102 102/376/73.9 27./V00. 13/41 /72/76.2/23.8100.437111548|29.7/20.3108 TABLE A96 EVALUATION OF. OBJECT SIGHTINGS BY DURATION DE SIGHTING, 1947 5 SECONDS ANO LESS Number 6-10 SECONDS Number 11-30 SECONDS 31-60 SECONDS Per Cent Per Cent Number Per Cent Number Per Cent Certain | Doubtful Total Certain | Doubtful Total Certain | Doubtful Total Certain Doubtful Tota Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total 0.0 0.0 0.0 0 00 0.0 0.0 / 8.3 00 8.3 0 0.0 0.0 0.0 4 60.0. 20.0 80.0 / 2 3 0.0 0.0 0.0 33,3 66.7100.0 0.0 $.3 00 8.3 0.0 16.7 16.7 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 / 0 0.0 8.3, 8.3 0.0 16:7.16.7 0-0 0.0 0.0: 0,0 0 e 0.0 0,0 00 0.0. 0,0 00 0.0 0.0 0 0 001 0,1 20.0 0.0. 0.0 0.0 0.0 0.0 20.0 4 5 80.0 20.0.100. 0 0 000 / 0.0 0.0 0.0 0.0 0.0 0,0 1.0 0,0. 0.0 0 0 0,0 0.0 00 0.0 0,0 0 0.0 0.0 0,0 0.0 0.0 0.0 0,0 0 0.0 0.0 0.0 0 2 .16,7 0.0. 16.7 0.0 0.0 0.0 0 0.0 0.0 0.01 83 8.31 0 0 0 0.0 0.0. 0.0 0 0 00 0.0 00| 5 • 5 417 0.0 417 14 667 00 66.7 0 0 00. 0000 / 01 83 0083 0 0 0 00 00 00 2 3 33366.7600.102/2 833|16.700.4126 66.7 333100. 61 SECONDS - 5 MINUTES 6-30 MINUTES Per Cent Number OVER 30 MINUTES NOT STATED Per Cent Per Cent Number Per Cent Certain Doubtful! Total Certain Doubttull Tolal Certain | Doubful Total Certain Doubtful Total Certain | Doubtfull Total Certain | Doubehul Total Certain Doubtful Total Certain Doubtful | Tola 0 2 286 0.0 28.6 0 0.0 0.01 0,0 4 9.3 00 9.3 6.00 _0.0 a0 0 0. 0. 0.0 0.0 17 7.0 93 16:3 0.0 0.0 0.0 0 0 0.0 0.0 0. D 3 47 0.0 4.7 14.3 0.014.3 O 0 0.0 0.0 0.0 0/a 23 00.23 0000 0.0. 0.0 0 0.0 0.0 00 0.0 0.0 0.0 0.0 14.3 0 0.0 0.0.143 0.0 0,0 0 2 0.0 0,0 0 0 0.0 0.0 66.7 0.0 00 0.0 0.0 0 2 0.0 66,7 163_0.0 16.3 25.6 0 D 0.0 0.0 4 70 2.3 9.3 0.0:28.6 0.0 0/ $33.3 14.3 0.014.3 0. 0 0.0.33.3 10. 233 0.0.233 _ 0.0 0.0. 0.0 8 18.6 00 18.6 7 7 4000 0.0100. 3 0 31000 0.0 100. 138 5 43 884116/00 161

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Evaluation 0-Balloon J-Astronomical 2-Aurcraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuftic mafo. 7-Psycha logical 8- Unknown 9 Other Total TABLE AIZ ELALUATION DE. OBJECT SIGHTINGS BY DURATION OF S/GHTING, 1948 115. SELONOS AND LESS 6-10 SECONDS 11-30 SECONDS 31-60 SECONDS Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Daubtful Tolat Certain Doubtlul! Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Tolal Certain Doubtful Tota 4.3 0.0 4.3 / 0.0 2,7 2 2 0.0 22.222.2 0 5 212 / 0 0.0 0.0 0.0 217 30.4.52.1 0.0 0 1 5 308 7.7 38.5 0. 0 11.111.1 0.0. 0.0 8.7 14.3 00 8.7 0.0 0.0 0.0 0.0 |/I./ 0.0 11.1 50.0 0.0 50.0 4.3 2 2 0.0 15.4 1554 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 4-3 e 0 0.0 1.0 0:0 00 0 0,0 0.0. 0.0 0.0 0.0 0.0 0 2 0 3 0 0 0 4.3. 0.0 0.0 0.0 0 0 2 0.0 0.0 0.0 8.7 0,0 0,0 0,0 0.0 0.00.0 0.0: 8.7 0 / 27 0.0 11./ 00 11.1 / 75.0 0.0 25.0 3 0.0 D.0. 0.0 0 0 0.0 13,0 0.013.0 014 308 0.0.0.0 0.0 308 / 0.0 43 43 0 0 00 00. 00 15 8 23 1652 3481100.19 4 1 3 69230.8 100. 3 0 5 40 0.0 0.0. 0.0 33.3 0.0 333 0/0 0.0 00 0.0 0.0 0.0 D.0 0.01 11.//4/ 25.0 0.0 25,0 4 9 55.6.44.4.100. 4 4 10000 0.0100 Evaluation O-Balloon 1-A stronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuttic. Into. 7-Psychological 8-Unknowt 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Bird 5-Clouds, -ust, etc. 6 Insuffic. Into. 7-Psychological & Unknown 9-Other 61 SECONOS - 5 MINUTES Number 6-30 MINUTES OVER 30 MINUTES NOT STATED Per Cent Per Cent Per Cent Per Cent Certain | Doubtful Total Number Number Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Number Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2 11. / /./ 222 / 6.7 26.733.4 4 144 0.0 44.4 5 33/1,5 3 11. / //, / 122.2 0 4 8.2 26.2 0.0|26.7 3 333 0.033,3 8 13 0 3 33.3 0.0 33.3 / 13.121.3 3h:4 2 6.7 0.0 6.7 6.7.134 2/ 11.1 0.0 0.0 1/1/ 5 4.913.1 0 0.0 0.0 0 0 0.0 0.0 6.7 3 8.2 0,0 1.6 1.6 0 0.0 0.0 0.0 0 6.7 6.7 0 0.0 0.0 0.0 1/ 0.0 0.0 0.0 0 0.0 1.6 0.0 0.0 0.0 6.7 0.0 0.0 0.0 3 33.4.9 0.0 11. / 0.01 /1. 0 1.0 0.0 0. 0.0 0.0 0.0 0.0 0,0 0.0 11.1 0,0 0.0 10 0,0 0.0 19/6.4 0.0 II./ 0.016.4 00 0.0 1.1 0.0//./ 0 0 0.0 0.0 0.0 1.0 0.0 4 6. 6 006.6 0 0.0 0.0 0.0 0.0 67 6.7 0.0 0.0 0.0 0.0 0,0 4.9 6.611.5 2 2 / 9 77.8 22.2/100 8 7/5533/46.71/00. 9 9 400.0 00100/36.2516/59.0141.0100 TABLE A98 EXALUATION OF OBJECT SIGHTINGS BY DURATION DF SIGHTING 1948 15 SECONDS AND LESS 6-10 SELONOS 1-30 SECONDS 14, 60 SELONDS Number Per Cent Number Per Cent Number Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain Total Certain Doubtful Total 0 0.0 0.0 0.0 0 1.0 0.0 0 0 0.0 0.0 0,0 0.0 0,0 38 42.1 85 $09.89.4 .. ₴ 1.0 1.0 286 286 0.0 2 3 5 222 33.3,55,5 2 2 18.2 0.0 /8.2 0 2 2 0.0 4.3 4.3 0.0 14,3 14.3 22.2 0.0 27,2 2 2 18,2 0.0/8.2 00 0 0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 0.0 09 21 2.0 0.0 0.0 0.0 0.0 0.0 0.0 18.2 00 18.2 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0,0 0.0 2 43 0.0 0.0 0.0 0.0 14.3 0.0 0.0 1.3 0.0 143 91 0.0 9.1 0 0 80 00 0.01 0 0.01 0.0 0.0 0.0 0.0. 0.0 0.1 a0 00 0 2.28.6. 0.0286 / 11.1- 0.0 11.1 4 - 36.4 0.0. 36,4 0.0 0.0 01 143 00 14.3 0 0.0 0.0. 0:0 0.0 0.01 0.0 6/41 47 128|82.211001 4 3.7 5714291100 6 3 9 1667333100. 0 /1100.0 0.0100. Evaluation 1 kalloon 1-Astronomical 2-Aucrait 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 insultic. into. 7-Psychological B-Unknown $ Other Total 6/ SECONDS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES Number Per Cent Per Cent Number Per Cent Certain Doubtful) Total Certain | Doubtful Total Rumber Numbes Per Cent NoT STATED Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 6 0 6 313 0.0.273 4 10.0 10.0 20.0 0 0.0 0.0 0.0 3 3 15 4.8 3 31 15.0 3 0.0 4.8 00 / 3.615.0 1202 14.3 38.1 5/3.6 3 0 0.0 4el 24.1 0.0 0.0 0.0 0.0 0 3 0 15.0 0.015.0 15.0 30.0 0.0.H29 24 238 0.0 14.314.3 3 12.1 00 0.0 4.8/73 0.0 00 0 0.0 0.0. 0.0 0.0 0.0 0.0 0 0.0 0 0.0 0.0 0.0 0. 0 D.0 0.0 0.D 0.01 00 0.0 0.0 0.0 0 0.0 0.0 0.0 0 D.0 0.00 5.0 0.0 5.0 14.3 0.0 0.014.3 0.0 3 13.6 0.0: 13.6 23.8 0.0 238 0.0 0.0 0.0 0.0 0.0 4 18.2 5.0 0.0 5.01 D.0 0.0 18.2 4 0 200 0.0. 20.0 14.3 D.0 14.3 L. 4,5 0.0. 45 5.0 0.0 5.0 0 14.3 0.0 14.3 2 6 2 015 0 2 37 0.0 6 3.2 0 2 9.5 3.2 9,5 0.0| 3,2 17 5/22/21.3/227/00. 15 5/20|75.01 25. 0100.16 +185.1.14.3100.57/12 63810/19.0/10 162

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Evaluation 0-Ballcon 1-Astronomical 2- Aircraft 3-Light Phenom. 4-Birds 5- Clouds, Dust, etc 6 Insuffic. into. 7-Psycho Sogical 8- Unknown Sother Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3• Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuffic. Info. 7-Psychological 8- Unknown 9-0ther Total Evaluation 0- Balloon I-Astronomical 2-Airciatt -3-Light Phenom. 4-Birds 5-Clouds, Dust, etc 6- Insuffic. Into, 7-Psychological 8 Unknown 9-0ther Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom, 4-Birds S-Clouds, Dust, etc. 6- Insuffic tito. 7-Psychological 8- Unknow Sother Total TABLE A99 EVALUATION OF OBJECT SIGHTINGS DURATION OF SIGHTING 195 г 5 SECONDS AND -ES. 6-10 SECONDS 11-30 SECONDS Number Per Cent Number Per Cent Number 31-60 SELONDS Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total | Certain Doubtful Total Certain Doubtful | Total Certain Doubtiul | Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total 10 6.7 0.0 67 0.0 40,0 26.7667 6.7 3.250 50.0150 2 0.0.10.0 10.01 //./ 2 0.0/1.1 200 00 20.0 0.0 67 0 1. 25.0 0.0 25,0 3 5 30.020.0.50.0 2 0 0 0 0.01 0.0 0 0.0 0.0 0,0 0.0 ao 2.0 0. / 0.0 0.0 0 0.0 0.0 0.0 00 0.1 0.0 0,0 0 00O 0.0 000. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13.3 0,0 13,3 0.0 0.D 0 110.0 0.0100 0.0| 0.0 0.0 Д.0. 6.7 6.7 0.0 00 0.0 00 00 0.0 0.0 0.0 0 3 000000 0022.2222 . 22.2 0.0 77.2 0,0 0.0 4. 0 0.0 0.0 0.0 0.0 0 0.01 0.0 0.0 0000 00 0.0 0.0 0.0 0.0 0.0 0 10.0 0.0 10.0 333 0.0 333 0 00 0.00 0 0 0.0 0.0 0.0 / / 0.0 (1.1 4 115/73.326.7100. 2 2 14 500/50.0/100. 7 3 10 700/300 100. 7 2 9 728. 222|100. 61 SECONDS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES Number Per Cent Number Per Cent Number Per Cent NoT STATED Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certaia Doubtful Total Number Per Cent Certain Doubtful Total Certain Doubtful Total 5. 1125 3.115.61 8 2 10 222 5.6.27.8 3 3 0 3 33.3 0.0| 33,3 4 24 80 7.4 9.4 0.0 9.4 2 0 2 5.6 0.0 5.6 2 3 22,2 1/33,3 5 14 16.7 9.3260 3./125 1831 0 0.0 00: 0.0 3 12 /6.7 5622.3 000 4 0 9.4 0.0 3 8.3/6.b 0.000 0 00 0.0 00 0 0.0 0.0 0.0 0 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0 0.0 001 0,0 0 0.0 0 0.0 0.0 0.0 0 0 0 0.0 00. 0.0 0.0 0,0 0 0.0 0.0 0.6. 0.0 3 3, 0.0 9.4 0.0 0.0 9.4 0 3 3.L 0 0.0 3.1 0 3, 0,0 8.3 0.0 0 0.0 0.0 8.3 0 / 11.l 0.0 /1.1 0 14 25.9 0.025.9 2.8 .0 0,0 0.0 0 0 13 0 13 401 00.407 0.0 2.8 0.0 0.0 0.0. 0.0 0 1 30,6 aD 30.6 2 0 2 222 0.0 22.2 0 8 14,8 0.014.8 2 3 6.2 3.193 / 2 3 28 56 8.4 0 0 0,0 0.0 0.0 2 0 z 320.0. 3.7 29 3 32.90.6 9.4100.129 7 36/80.619.41/00. 8 1 2/889.111 100. 46 8 54. 852114.8100. TABLE A100 EVALVATION ОЕ ОВЛЕСТ SIGHTINGS BY DURATION OF SIGHTING, 195/, SECONDS AND LESS 6-10 SELONDS 11-30 SELONOS 31-60 JELONDS stro her Per Cent Per Cent Per Cent Per Cent Certain Doubtful Total Certain Doubthel Total Number Certain Doubtfull Total Certain Doubttul] Number Number Total Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total Certain Doubtful | Total 0 0 00 0.00 0.01 0 0 0.0 00 0.0 0. 0 00 0.0 0.0 0 0 0.0 0.0 0,0 2 7 412.16.258.4 0 240.0 00 40.01 2 02 333 0.0 33.3 0.0 20.0 20.0 / 8.3 0.0 8.3 20.0 00 20.0 2 0 2 0 0 00 0 333 0,0 33.3 3 4 60.0.20.6 800 0.01 0.0, 00 0 0.0 0.0 00 0 0.0 0 0 0.0 0 00 00 0.0 0.0 0 0.0 0.0 00 0.000 0,0 00 0 0 0 00 0,0 00 о 0 00 16. 7/6.7 0 00 0 0 0.0 00 0.0 0 0 0.0 0.0 0.0 0 00 0.0 00 0 0.0 00 0... 1.00.0 0 0.0 0 0.0 0.0 00 0 0 0 0 00 00 0 0 0.0 0,0 0.0 0 0. 00. 0.0 P.0 0 0.0 0.0 0.0 4 333 00 333 0 2 40.0l 0.0.40.0 0 1 16.7 00 16.7 0 0 00 00 00 0 0 00 00 00 о 0 00 0.0 0.0 0 0 00 0,0 0.00 0 0 0 00 00 0.0 10 12/83.3167 108.1 5 0 / 5100.01 00 100. 5 11 6 83.3/6.7100. 3 2 5/60.0140.0/180. 6/ SECONOS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES NoT STATED Cardin Douse Toll Certain eGan Total Certain Doubt Total certain can Tota Number Per Cent Number Per Cent Certain Doubtful| Total Certain | Doubtful Total Certain | Doubiful Total Certain Doubtful | Total 2 3 - 4.5 4.814.3 2 0 2 10.5 0.0 10.5 1 0.0 114.3 0.0 14.3 65 4.3108 0 4.8 3 25 4:8 3 / 415.8 5.3 21.1 3 4 14.3) 4.8. 19.) 3 5 1D5 15.8 26.3 48 4.8 0 0 00 о 00 0.0 0.0 0.0 0.0 0 0.0 0 0 00 00. 0.0 0 0 60 0.0 0.0 00 0.0 0 / 000 - 2 14. 3| 14.3/28.6 3 6.517. 4 23.9 0. 1 114.3 0.0 14.3 1 3 43 2.2 6.5 4.8. 0.0 4.8 4.8 4.8 3 0.0 0 0 0 0.0 5.3 0,0 12/./ 00000 0.0 0.0 0 / 22 00 22 0.0 0.0 0 00 00 0.0 00 0.0 28.6 00 0.0 28.6 00 0.0 000 0.0 1 00 00 10 21.3 0.0 21.7 00| 8 0.0 - 2.2 2.2 8 38.1 38.1 0 4 0.0 |21./ 2 9.5 0,0 9.5. 3 0 3 • 15.8 0.0 15.8 • 0 00 00 10 14.3 13 0 13 28.3 00 28.3 0.0 2 0 2 43 00 4.3 16 5 2/ 762/23.81114. 115 4 19 789/21.1108. 1 7 45.7 143/100. 35 TH 7616/ 23.9100. 163

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Evaluation O-Batloon I-Astronomical 2-Aircratt 3 Light Phenom. 4-Birds S- Clouds, Dust, etc. 6 insuftic into. 7-Prychological 8-Unitro w s-Other Total TABLE AIDI EVALUATION DE DRUECT SIGHTINGS BY DURATION OF SIGHTING, IS SECONOS ANO L125 2 6-10 SELONDS 1430 SECONDS 31-60 SECONDS Number Per Cent Number Per Cent Number Per Cent nurse: Per Cent Certain Doubtful| Total Certain Doubtull Total Cerzain Doubtful Total Certain Doubtful Total Certain Doutful Total Certain Doubtful Total Certais Doubiful Total Certain Doubtful | Total 5 6 0.5 27 3.2 2 35 25 3.76.2 6 10 29 437.21 917 20 7814.8 64 28 92 34.8 15.2,50.0 18 12.30.222 14837.0 17 7.24/21 5.617.1 20 38 9.8.10.920.7 -7. 310 61 2.68.7 8 24 198 99247 28 28 56 200200400 21 17 38 183 14.833.1 1 23.5 1.1 1.6 1 12 0.01.2 2.7 .711.4 22_00 /1 (1.7 Балери _4 51.62.1 / 1 0.0 1.21.2 . 7 00. .7 110.0 5 0.5 10.0 1.0 0.0 2/00 1 41.4 63 09 92.6 49. 0.0 4.9 0.0 7.4 2 /11. 0.011.1 • 6 29 0. 7.4 10. 71. 0.0 7.1 8 13/60 11 60 20 29 0.2 3.6 1000 9 1.8 0-0 7.8 11-7 0•0|1.7 0 19 40.3 0.0 10.3 0 22 157 0.0 0 31 270 0.0. 37.0 8 2.10 4.3 1.15.4 0 1 13 0.0 | 1.2 x 8 2.9 29 5.8 2 3 09 1 1 2.4 1223|6.1184 V66.8/33.2/100. 15724 81 704 29.6.100 91 49 140/65.035.0108. 8134415/20.429.6 100. Evaluation 0-Batloon [l-Astronomical 12-Aircraft 13-Light Phenom. 4-Birds S-Clouds, Dust, etc. 6-Insuftic. Into. 7-Psychological &- Unknown S-Other Total Number 6 Per Cent Number Per Cent 2 5 29 0.0 0 0. 1186 Total 1.6 9.7 18. 64 0.0) 0. 1,4. 0.0 0. 8 0.0 2. 0.0 18.01 100. 7 Number 2/ 12 20 13 Per Cent Number 1640 9,323.624 8 3 2 39 7458 3 1-42.1 0.0|1.4 0.0 0. 7 0.04.3 0.73.6 0.023.6 63 12 67 3 63 13 Per Cent Ses 0.4 0.4 0.7. 5,7.14.2 2.811.3 8. 520.6 0. 0. 1.1 0.09.4 0.0 0.4 0.0 23.8 2.4 7.1 1. 0 22.4 0. 4. 4.7 164

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Evaluation 0-Ballcon -Astronomical 2-Aircrait 3 Lipit Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Info. 7-Psychological Unknown 9-0ther Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Ligit Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuffic. Into. 7-Psychological 8-Unknown 9-Other Total Evaluation 0-Balloon I-Astronoaical 2-Aircratt 3-Light Phenom +-Birds 5-Clouds, Dust, etc 6- Insuftic. Into 7-Psychological 8 Unto wa s-Other Total TABLE A102 EKALVATION OF ALL SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING EOR MONTHS OF YEAR JANUARY FEBRUARY FIVE SECONAS OR LESS MARCH Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Number Per Cent Nuesber Per Cent Number • Per Cent Doubtful Total Certain Doubtful Total Certain Doubtfud | Total Certain Doubtful Total Certain Doubtii Total Certain Doubtful Total 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 5.6 5 26 14.7 70.0 86.2 4 344 54.5 90.9 0.0 15.4 14 375 50.0 81.5 0 bl./ 0.0 16.1 2.0 0.0 D.0 0.00.0 0.0 0,0 0.0 2 (1./ 0.0 0.0 0.0 0,0 0.0 0.0 2 11.1 0.0 0.0 0.0 0,0 00 0.00.0 0.0 0 0,0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.6 5.6 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.01 2.0 0.0 6.3 0.0 0,0 0.0. 0.0 0.0 6.3 5.6 0.0 2.3 1.0 00 0 0.0 0.0 56 13.3 0 0.0 0.0 0.0 2 6.7 20.6.7 0 0.0 00 9./ 0.0 0.0 0.00.0 0.06.3 2 0.0 3.3 3.3 0.0.91 0 63 2.0 11.1 0.0 00 0.0 0.0 0.0 0.0 8 22 30 26.713.3100. 5 6 11145.5154.5100. 8 16/500 50.0.100. 17 / 18/94.15.6 100. MAY Number Per Cent JUNE JuLy AUGUST Certain Doubtful Total Certain Doubtful Total Certain Burber Total Coral Dubt Total Certain dotil Total Certain enced Total certain outl Total certain catal ot 0 0.0 0.0.0.0 3.7 0.0 3.7 2 , 3 0.9 1.8 2.7 3 0.0 3.53.5 9 25.0 12.5 8 / 18 37.0 29.6 66.6 38 5 0 4./ 37.5 6 20.8l 24.9 0.0 0.0 0.0 0.0 0.0 0.0 4.1 3 0 24 6 2 34.8 22.0,568 15 3 40 5519.4 46.5. 639 4 11.1 3. 7 14.8 11 12 23. 10111.0 21.1 1/ 3.5 9.3 12.8 0 0.0 0.0 0.0 L 0.9 0.0. 0.9 0.0 12 0.0 0.0 0.0 4.1. 00 2 3 0.9 0.0 1.8 0.9 2.2 0 0.0 1.2 0.0 0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 3 3 2 3 12.5 0.0 12.5 3 0.0 0.0 0.0 11.1 0.0 11.1 0 2 0.0 0.0 1.8 0.0 0.9 1.8 0.0 0 0.0 0.00.0 0 0 6 / 10 0.0 1.0 8.3. 0.0 8.3 40 0.0 12,5 0.0 12.5 0 0.0 0.0 0.0 113.7 3.7 12 2 0 12 11.0 0.0 11.0 0 2 18 0.018 6 2 6 12 1.0 0.0 1.2 3 1.0 12.3 1.2 3.5 20 4 24/83.3 l.7 V00. 18 9 27 6693331006841110962437.6/100 33 53 86 384 61.6100 SEPTEMBER Number Per Cent ОстовЕк NOvEMBER DECEMBER Number Per Cent Numsber Per Cent Number Per Cent Certain Doubtiull Total Certain Total Certain Doubtful| Total Certain| Doubtful| Total Certain| Doubtiul Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful | Total 0 0.0 0.0 0.0 2 2 0.0 5.6 5L 0.0 0.0 0 00 00 0.0 12 3 511 4.8 4.8 0.0 0 41.9 2, 9.5 0.0 14/3 0.0 0.0 17 0 6 23 472 16.7 439 3 7 2 _14. 2124.148.372.4 12 12 124 40.0 40.0 80.0 28 83 11.1 6. 9 3.4 10.3 0 00 0.01 0.0 0.0 2.8 0.0 1.0 0.0 2.0 00 2 0 2.8 2.8 2.8 54 0.0 0.0 0.0 0 0 0 0 34 0.0.34 00 0.0.00 0 0.0 00.00 0 0 00 D 0.0 0.0 0.0 00 0.0 0,0 0.0 0.0 00 2 2 e 17 0 2 2 9.5 0.0 9.5 0 2.8 0.0 2.8 0 0.0 0.0 00 0 00 0.0 00 0.00.0 10.0 4.5 0.0. 95 0.0. 4.8 4.8 040 0.0 0.0 0.0 3 83 00 8.3 40 0 0.0 0.0 00 0.0 00,00 3 10.3 0.0 103 0 - 0 6 20.0 0.0 20.0 0 00 00 00 1 0 1 34 00 34 0 0 0 00 00 0.0 4 21 810 19.0100 23 13|36/63.9136. 1 100. 14 15 29 483/51.7100. 18|12/30 600 4001100. 165

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Evaluation 0-Balloon l-Astronomical 2-Aiscraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. 6- Insuftic into. 7- Psycholagical & Unknown Total Evaluation O-Balloon 2-Astronomicat 2-Aircraft 3-Light Phenom, 4-Birds S-Clouds, Dust, etc. G Insuffic. Info. 7-Psychological &-Unknown 9-Other Total Evaluation 0- Balloon 1-Astronomical 2-Aircratt 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. info. 7-Psychological 8-Unknown -Other Total TABLE A103 EVALVATION DF ALL SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING FOR MONTHS 51x TO TEN SECONDS JANUARY FEBRUARY MARCH Number Per Cent Number Per Cent Number APRIL Per Cent Number Per Cent Certain Doubtful Total Certain Doubttul! Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubiful Total Certain Doubtful Tatal 0.0 0.0 0.0 00 0.00.0 11.1 55.6 /eb.7 100.00 0.0 100.0 0 / 0.0 000.0 0 0.0 0,0 0.0 0.0.16.7 0 2 18.2 0.0 0.0 11./ 0 20 00. 00 0.0 0.0 0.0 000 0 110.1 16.2 0.0 14.7 5 36.4 21 18.2 455 00 00 0 0.0 00 00 0. 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 160.7 0.0 /6.7 0.0 0.0 0.0 0 0 0 0.0 0.0 00 0 00 a0 0.0 0.0 0.0 0 0 0.0 0.0 11.1 0.01 0.0 11. 0.0 0.0 11.1 0 2 0 0.0 0.0 0.0 00 0 0.0 00 0.0 11.1 0.0 0.0 0.0 0 0 3 0 0 0.0 0.0 0.0 0 0.0. 0 0.0 0.0 00 3 50. D 0.0 50.0 0 0,0 0.0 0 0.0. 0.0 0.0 0.0 0.0 D.0 3 2 333 64.7.100. 01 11000 00.100. 6 100.0 0.0 100. 0 3 0 10 0.0 0.0 0.0 9.1 0.0 9. 0 0.0 0.0 0.0 3 27.3 0.0 21.3 0.0 0.0 0.0 90.99.1100 MAY - JUNE Number Per Cent Number Per Cent Number лисх Per Cent Number AUGUST Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubthul Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total 3 8.3 0.0 25.0 0.0 8.3 0 50 0.0.. 5.0 12.4 0.0 4 0.0 12.512.5 3 25.0 3 15.0. 35.0 50,0 3 16.7 8.3 25.0 10 3 150 0.0 150 14 6 20 134. / 14.6 2.4 48.7 12.2. 0.0 8.3 8.3 5 26.8 3 8 4 3 6. 9.4 9.4.18.8 12 25.0 12.537.5 3 0.0 150 0.0 0.0 0.0 00 0 0.0 0.0 15.0 0 3.1. 0.0 3.1 0.0 00.00 0.0 0.0 0 0.0 0,0 0.0 0 0 0 0.0 0.0 ao 2 16.7. 0.0 16.7 0 0 0.01 D.0 000 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 216.7 0.0 0.0 16:7 0.0l 0.0 0 0 2 0 0 0.0 10.0 0.0.10.0 0.0 2.4 2 6.3 0.0 0.0 0.0 00 5.0 0.0, 5.0 0 0.0 0.0 0.0 6.3 0.0 0.0. 0.0 0.0 17.1 0 10 17. 0.0 0.0. 0.0 2.4 0.0 2.4 2 12/83.3.16.7.100. 10 10 / 20 50.050.0100. 30 41. \13.2 26.8.100. 6 / 21 6 18.7 0.0.181 1. 3.1 0.0 3.1 11 32 65.6 34.4 100. SEPTEMBER Number Остовек NOVEMBER DECEMBER Ten Henl Number Merlen Cerlain | Doubtful Totat Certain Doubtful Total Certain Doubtful Total Certain| Doubtful Total Number Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0.0 10.010.0 0.0 0.0 0,0 0 0,0 0.0 0.0 0 00.0 3 200 10.0 30.0 10 3 13 66.2 20.0 86.7 3 4 42,9 14,3.57,2 3 33.3 00.00 666.7 100.0 2 0.0 20.0.200 0 0.0 0.0 0.0 0 0.0 0.0 0.0 00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 00 0.0 0.0 0.0 0.0 10.0.10.0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 00 00 0.0 0.0 0,0 0 0.0 0.0 0.0 0 0 3 0 0.0 0.0 0.0 0. 0. 0 00. 00. 0.0 30.0 0.0 30.0 2. 0 2 /33. 0.0 13.3 0 00 3 00 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 3 2 0 0.0 0.0. 0 0 00 00 00 3 0.0 0.0. 0.0 0 0 0 00 00 0.0 0 0 42.9 00. 42.9 0. 0 00 0.0 00 a0 00 00 0 00 0.0 0.0 5 5 10/500 50.0100112 | 3/15 800 20.0/100. /.1 2 185./114.3100. ./ 2 3 33.3.66.7.100. 166

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Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. 6 Insuffic Into. 7-Psychological 8-Unkno Unknown 9-0ther Total Evaluation 0-Balloon 1-Astronomica! 2- Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc 6 Insuffic. Info. 7-Psychotogical & Unknown 9-0 ther Total Evaluation C-Balloon 1-Astronomical 2-Aircraft 3 - Light Phenom. 4- Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological 8 Untown SOther Total TABLE A104 EVALUATION DE ALL SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING FOR MONTHS OF YEAR, ELEVEN TO SECONOS VANURRY FEBRUARY Number MARCH THIRTY Number APRIL Per Cent Per Cent Per Cent Humber Per Cent Certain | Doubtiul Total Certain Doubtlul Total Certain Doubtful Total Certain Doubtful | Total Certain Doubth Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0.0 00 0.01 0.0 00 0.0 40,0 50.01 25.0 25.0 6.36.3 0.0 0.0 0.0 0.0 6.3 6.3 8 33.3 4.8 138.1 0 0.0 25.0 0.0 25.01 6.3 0.0 0.0 6.3 2 0.0 14.3 8.5 23.8 0.0 0 00 00.0.0 4,8 0,0 0.0 0.0 4.8 0.0 0.0 00 4.8 00 0.0 0 0 0.0 0.0 0.0 2.0 4.8 00 0.0 0.0 0.0 0,0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 90.01 10.0 100 2 50.0 0.0 4 100.0 0.0 1100, 50.0 00 0.0 0.0 3 18.1 0.0 18.7 10 63 56.2 62.5 23.8 23.8 4.8 0.0 4.8 11 16 31.3/68.7100. 181 3 21 85.7114.3.100. MAY JUNE Number Per Cent Number Per Cent Number AUGUST Per Cent Number Per Cent Certain Doubtful Total Cerain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Dowtful Total Certain Doubtful Total 2 5.3 5.3.10.1 1 56 00 56 4 5 9 4.4 55 9.9 / 110.0 2.5| 2.5 2 2 10.5 0.0 10.5 3 4 5 21/ 53 26.4 5.6.16.7223 13 31614.3 3.3176 6 612 /5.0 15.0 30.0 0.2 53 5.3 5 О. 2 7. 27.8 11.138.9 18 1836 19.8 19.8 39.6 4 10 15.0 10.0 25.0 0 0 00 0.0 0.0 0 0 0.0 0.000 0.0 0.0 0.0 0.0 5.3 5.3 0 0 00 00 00 2 00. 0000 0.0 0.0 0.0 0 4 3 0.0 0.0. 0.0 0.0 0,0 0.0 0.0 00 0.0 0 0 0 4 3 / 21.1 0.0 0 3 0.0 0.0. 0.0 0 16.7. 0.0 16.2 0 3 13.3 00 3.3 0.0 0.0 0.0 3 7 44 33 77 15.8 0.0.15.8 5.3 0.0'53 3 0 13 3 14.7 0.0 16.7 19 0 19 20.9 0.0 20.9 0 00 00 00 0 1 11 0011 0 0 14 0 0.0 0.0 0.0 2 7.5 0.0 0.0 0.0 7.5 0.0. 0 14. 35.0 D.0 35.01 15 41 19 18.9 21.1 100. D. 5 0.0 0.01 0.00 1 8 22.2 21.8 100. 162 29 91 68.2 318100 28.12 40725 27.5 100, SEPTEMBER OCTOBER NOVEMBER Per Cent Number Per Cent Number Per Cent DECEMBER Whim her Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Cerain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Number Certain Doubtfull Total Certain Doubtful Total 0 4 0 2 2 2 0.0 13.3 13.3 6. 7. 6.713.4 0 7.100 % 0.0 0.0 0.0 2 2 0.0 / 7 42.9 11 500 3 7 26 7 20.0. 46.7 2 1.114.3 21.4 00 0.0 00 0 00 00 0.0 0.0 0.0 00 2 0 0 0 2 50.00.0 50.0 2 500 0.0. 50.0 3 0 3 15.415.4 23.1 5 00 23.1. 0.0 4 7.7 30.8 385 0.0 0.01 0.0 0.000 / 0 0 0 0.0 4:7 6.Д 2 13.3 0.0 1133 6.1 00 61 00.00.00 0 0 / 0 / 0. 0 0 00 00 00 0.0 0.01 0.0 00. 00. 1 00 71 71 1.1 00. 1.1 0.00 00 0.0 0 0 0 0.0 0.00.0 d.0 0.0 0.0 0 0 71. 00 7.1 0 0 0 0.0 0.0 0.0| 0.0 0.0 0.0 0 0 2 0.0 0.0 0 0 0 2 00 10.0 0.0 0.0. 0.0 0.0 00 0.0 0 154.00 15.4 a0 00 00 0 00. 00.00 0.0 0.0 0.0 1.7. 00. 7.7 8 7/15 53.3146.7 100.110 4 14 11.4/28.6 100. 4 0 4100.0 0.0 100- _ 6 113/53.946. 1 100. 167

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0-Balloon t-Astronomical 2-Aircratt 3-Ligtit Phenom. 4-Birds 5-Clouds, Dust, etc. G Insultic into. 7-Psychological B- Unknown $ Other Total Evaluation o-Balloon 1-Astronomicat 2-Aircraft 3-Light Phenom. 4-Birds S-Clouds, Oust, etc. 6- Insuffic. tnto. .Psychological 8-Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Airccaft 3-Ligtt Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psyc.hological 8.Unknown 9-Other Total TABLE A105 EVALUATION OF ALL SIGHTINGS EOR ALL YEARS BY DURATION DF SIGHTING FOR MONTHS JANUARY YEAR, THIRTY ONE TO SIXTY SECONDS FEBRUARY MARCH dumber Per Cent Number Per Cent Number APRIL Per Cent Number Per Cent Certain Doubtful Total Certain Doubtiul| Total Certaia Doubtful| Total Certain Doubtfull Total Certain Doubtful Total Certain | Doubtful Total Certain! Doubtfut Total Certain Doubtful | Total 0 0 00 0.0 0.0 e 0. 0 00. 0.0 0.0 / 1 83 0.0 83 0 0.0 4.5 4.5 0 00 0.0.00 0 0 00 00.00 0 0.0 0.00.0 0 4.5 0.0. 4.5 1000000 0 00 0.0,0.0. 00. 0.0 00 00 00 00 00. 00.00 0 00 0.0,00 00 00. 0.0 4 100.0 0.0.100.0 L 0 0 0 0 0 / 2 3. 20.0 40.0600 0 4 33.3 0.0 33.3 4.5 _4.5 9.1 0. 0.0 00. 0.0 0 0.0 _ 0.00.0 0 0.0 0.0 0.0.0.0 0.0 0 0 0.0 00 0.0 0.0 00. 00 0.0 000,0 / 20.0.0.0 20.0 0 0. 00 00 0.0 1 200. 0.0.200 2 0 0 0 0 0 / 0.0 4. 33.3 0.0.33.3 4.5 0.0 4.5 0 00 00 00 00 0.000 0 0.0 0.0.00 2 0. 00.00 00 91 0. 0.0 0.0 9.1 0.0. 00 2 16.7.0.0 167 15 0 15 68.2 0:0 68.2 1 00 83 83 0. 00. 00. 0.0 0 4 1000 0.0.100. 312 5 60.0 40.0.100. / 112 9. 7| 8.3 100. 120 2 22 90.9. 9.11100. JUNE JuLy Number Per Cent Number Per Cent Number Per Cent Number AUGUST Per Cent Certain | Doubtful Total Certain| Doubtful Totas Certain Doublful Total Certain Woubtful Total Certain Doubthul Tolal Certain| Doubtful| Total Certain| Doultful Total Certain | Doubtful | Total 0 0 0 00. 0000 0 00 0.000 / 4 33.3 11.1 44.4 00 2. 22.2 0.0 272 0,0 0.0 5 38.322.2 555 5 2 14 2 7100 4.0 14.0 4 5 2.6. 10.513.1 2 4.0 0.0 4,0 3 6 1.9 1.9 158 3 0 12 26 280 24.0 52.0 2 1.9 5.3.13.2 0 0 0 0 0 0 0 0.00000 0 0.0 00.0.0 2 0 00 0.0 0.0 1 00 2.0 2.0 00.00 12.0 0.0. 20 3 0 0 100 2. 6 2.4 0 0 0,0 00.00 0 0 0 00 0000 0.00. 0000 00 00 00 0 0 3 3.3 0.0333 0 0 00. 0000 0 / 0 2 0 0.0 0.0 00. 0.0 0 00 0.0 0.0 0 0.0 00.00 0.0 11.1 0 0 00 0.0 00 2 22.2 00 22.2 10 1 00 11 11.1 0 0 0 3 60 00 6.0 O 0.0. 0.0 0.0 10 20.0 0.0 20.0 000 0.0 0.0 5 14 0 5 122 0.0 13.2 2 5,3 0.0 5.3 0 14. 368 0.0 368 0 00 00 00 8 9 88.91111. 100 6 3 9 167.7.33.3/100 | 35 15/ 50 70.0.30.0100. 128 10/38 73.7 26.3100 SEPTEMBER NOVEMBER DECEMBER Number Per Cent Number Per Cent Number Certain | Doubtful Total Certain Doublful Totas Certain] Doubtful Total Certain Doubtful | Total Per Cent Num ber Per Cent Certain Doubttul Total Certain Doubtful Total Certain| Doubfful Total Certain | Doubtful | Total 0. 2 3 0 0 1 00 41 77 0 1 10.0 0.0 10.0 2 / 3 15.4 1.7.23.1 4 23.1, 1.2. 30.8 2 2 2 1. 0.0.20.0 20.0 3 3 53 10.5 15.8 0 2 20.0 0.0 20.0 2: 0.0.40.0400 5 10.5 15.8. 26.3 0 2. 20.0 0.0 200 1 200. 0.0 200 2 7 21.3 105 36.8 0. 0 00.0000 0. 0.0 0.0. 0.0 0. 00. 0:0 0.0 0 00 00 00 100. 11. 1.1 0. 00 0.0.0.0 0 0 00 00 00 D 00 00 0.0 0.00,0 0.0 0 0 00 0.0 00 0 0 0.0 0 00 0.0 0. 00. 00 0 1 1.70,0 0 0 0 10.0 0 0 0,0 0 00 0.0 1. 20.0 0.0.200 0 00.0 0,0 0.0 0 3. 7.7 0 00.00. 00 0 00 00. 00. 0 0 0 3 23 / 0.0. 23.1, 0. 5 50.0 00 500 0. 0. • 00. 00 00 2 8 0 00 00 00 2 10.5 00 10.5 0 e 00 a0 0.0 0 0. 0 00 00 00 0 0 0 00 00 00 2 0 2 105 00 105 4. 13/69.2/308 100. 10.1 0. 10. 1000. 0.0 100. 2 3 5 400/60.0100 12 7 19 63.2 36.8.100. 168

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Evaluation 0-Ballcon J-Astsonomical 2-Aircraft 3-Light Phenoms. 14-Bieds S-Clouds, Dust, etc. G Insuffic. Into. 7-Psychological 8-Unknawn $-Other Total Evaluation 0-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological & Unknown 9-Other Total Evaluation O-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G-Insuffic. Info. 7-Psychological 8-Unknown sother Total TABLE... A1D6 EVALUATION DE ALL SIGHTINGS FOR ALL YEARS BY DURATION DE SIGHTING FOR MONTHS DE YEAR, SIXTY ONE SECONOS TO FIVE MINUTES. JANUARY FEBRUARY MARCH APRIL Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful| Total Certain | Doubtful! Total Certain | Doubtfui Total Certain Doubtful Total Certain Doubtful | Total Certain Doubtful "Total Certain Doubtil Total Certain Doubtful Total 2 22. 77/5.4 14.2 0.0 4.2 0 1I./ 0.0 11./ 3 2 20.0 8,3 0.0 0.0 0.0 5.9 0.0 5.9 3 23.1 0.0 23.1 8.3 1. 7 5.8 3 15.4 23.1 0 0.0 0.0 2 0 2 8.3 8.3 0 2 10 0 0.0 44-4 11.1 55,5 8 2.9 23.5 2.9 10 5.9 2%4 0 0.0 0.0 0.0 0 0.0 0 0.0 0 0.0 12 0 12 50.0 00 0.0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.6 0 2.9 0.0 5,6 00 50.0 3 0 3 0.0 23. 0.0 0.0 23. 1.7 0 0.0 0.0 0 4. 46.7 3. 12.5 0.0 0.0 162 12,5 0 0 3 0 0.0 0.0 0.0 0.0 0 00 0.0 0.0 0.0 2 11.1 0,0 11. 1 12 0.0 3 0.0 /6.7 16.7 13.84.6.15.4 100. 22 2 24 91.2 8.3 100. 12 6 118/64.7/33.31100. 31 .0 14.7 12 2.9 35.3 2.9 3 13491.2 8.8100. 0.0 2.9 35.3 0.0 2.9 MAY JUNE Number Per Cent Number Per Cent Number JuLy AUGUST Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul| Total Certain Doubtful Total Certain Doubtful Total Certain] Doubtful Total Certain Doubtful Total 4 2 1/ 24.3 .5.4 29.7 7. 19.3 3.2 22.5 22 14 36 135 8.L221 10.12 22 13.5 16.2 29.7 2 2 0.0 5.4 5.4 2 6 10.10.8 16.2 21.0 5 3 32 65 9.7 3 1 06 18 24 1.4 14. 2.8 9. 16.1 12.9 29.0 0 0.0 0.0 0 0.0 0.0 0.0 0 0 a0 0.0 0.0 30 0 16. 46 18.4 9.8 29.2 12 4 16. 16.2 5.4. 21.6 0.6 4.3 0.0 4.1 0 0.0 0.0 0.0 1 3 0 0 0 4 10.8. 0.0 10.8 0 0.0. 0.0. 0.0 1 18.9 0.0.18.9 3 8.1. 0.0|8.1 4 0 0 0 0 0.0 0.0 7 37 3 0.0 4.1 0 0.0 0 0.0 ao ao 0.0 0.0 0 I 0.0 0.0 0.0 10.6 2.0. 0.6 0 0.0 0.0 0.0 0 11 86 00 86 3 0 0 0.0 0.0 0.0 0 3 4. L 0.0 0.0 0.0 3 4.1 0.0 5 12 1.8 13.0 2 3 2.7. 14. 4.1 8 25,8 0.0 46 0 46 28.2 0.0 28.2 23 0 23 0.0|31.1 4 12.9 25.8 3/1 0.0 12.9 4 0 424 00241 2 2 2.1 0.0.2.7 27. 10/37/73.0 27.0 100. 24 7 31 174/22.6 100. 126/37 16.3/17.3/22.7 100. 53 21 | 74/71.6.28.4.100 SEPTEMBER NOVEMBER DECEMBER Number Per Cent Per Cent Per Cent Per Cent Certain Doubtful Total Certain | Doubtful Total Number Certain | Doubtful Total Certain Doubtal Total Number Number Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 3 9 6.5 13.0 19.5 2 8 6.7 20.0 24.7 2 2.13.3. 0.0 133 2 22. 2.2 4.4 0 2 00 47 6.7 1. 5 / 6 21.7 4.3.26.0 2 67 67 13.4 2 3 8.14.3 13.0 18 4.3 34.8,39.1 8 10.0 167 26.1 0 0 0.0 0.0 0.0 0 0 00 0.000 0 00, 0.0 0.0 0 1 67 0.06.7 6 4.3 21.7 26.0 0 0 0.0| 0.0| 0.0 0.0.00.00.0 e 0 a0 0.0 0.0 0 0 a0 0.0 0.0 0.0 0.0 0 0 10.0 0.00.0 0 0.0 0.0 0.0 0 6. 6 8.0 400 40.0 / 2.2 0.0 2.2 2 2 67. 0.0 0 0 a0. 0.0 0.0 NO 0.0 10.0 0.0 2 0.0 16 00 0 0.0 0.0 0.0 8.1 8.7 14. 34.8. 00 34.8 0 0 0 00|0.00.0 0 94 0. 0.0 0.0 2 0 0.000. 0.0 0.010.0 9 30.0 0.0 30.0 0 4 267. 0.0 267 6 0 6 261 0.026.1 0 1, 3.3 0.0 3.3 0. 0 0 000.000 0 0 0 a0 00 00 23l 23 44/50.0.50.0100. 13 30 567/43.3 100 8 1 15 533146.7100. 16 7 23 /49.6/30.4 100. 169

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Evaluation a-Balloon 1-Astronomical 2-Aircraft 3 Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic info. 7-Psychological 8- Unknown 9 Other Total TABLE A107 EVALUATION OF ALL SIGHTINGS. FOR ALL YEARS BY DURATION OF SIGHTING FOR MONTHS OF YEAR, SIx TO THIRTY MINUTES JANUARY FEBRUARY MARCH Certain Doubtful Total Certain Doubtful Total Number Per Cent APRIL Per Cent Per Cent Number Number Per Cent Certain Doubttul | Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2 5.9 635.3 5.911.8 0 3.25.0 0.0 25.0 3 5 133 20.0. 333 0 0. 0.0 00 0.0 0.0 35.3 2 16.7 0,0 25.0 6.3/31.3 2 11.8 00 5.9.19.7 0.0 2 2 0.0 0.00.0 0 00 160.1 16.7 6.7 / 2 3 6.7 13.3. 20.0 4 15.0 0.0 125.0 0.0 0,0 0 0.0 0.0 0.0 0.0 00 0 0.0 0.0 0.0 0 0.0 0. 0.0 0.0 0 0.0 00 0.0 00 20 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 00 0.0 0,0 0,0 0.0 0.0 0.0 0,0 0.0 0.0 0,0 0.0 0.0 5.9 0 0.0 1 5.9 0 0 0 0.0 0.0 a0 0.0 0.0 0.0 k:3 00 0 0.0 0000 4 235 0.0 23.5 2 2 1. 7, 0 3 00 5 5 0.0 333 0.0 31.5 5.9 00 59 16.7 0.0.25.0 33.3 375 25.0 0 0.0 6,7 6.7 0 20 00 0.0 15 2 17/88.2118.100. 10 2 112/833 16.7100. 9 6. 15k0.0 k0.0| 100. 15 16/93.7. 6.3 100. Evaluation L0-Balloon J-Astronomical 2-Aircraft 3-Light Phenom, 4-Birds 5-Clouds, Dust, etc. 6-Insuffic. Info. 7-Psychological 8-Unknown 9-Othes Total Evaluation 0-Balloon 1-Astronomical 2- Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. E Insuffic. Info. 7-Psychological 8-Unkrown 9-Other Total JUNE JuLy AUGUST Certain, Doubteul Total Certain outl Tolal Cerain Dunheil Total Certain Doubtil Total Terain Doubtel Total Certain outl Total Number Per Cent Certain Doubtful Total Certain | Doubtful | Total 2 1/ 26.5 5.9 324 3 5 3 4 8.8. 2.9 11.7 13 2 5. 3. 16.30.2 372 14 38 19.6 11.5 31.1 2. 4.1 7.0 24 0.0 11, 5.7 3.3 2 0 0 4.] 4 9.0 1 14.7 5.9 20.6 8 11.6 7.0 18.6 8 24 13.1 6.6 19.7 3 88 0.0 8.8 / 2.3 0.0 2.3 3 0 2 5 2.514 4.1 8 6 4 13 3018.3 14.0,323 2 10/ 86. 2.2.108 17 23 6.4 18.3. 24.7 0 4 4.3 00. 43 0 0.0: 0.00.0 2.9. 0.0. 2.9 0 0 88. 0.0, 8.8 0.0 0000 2 0 . 0 3. 4 0 0 0 2 00 00 00 0. 0.0 0.00.0 0 00 00. 00 0 00 00 00 0. 0. 00 00 00 100 1. 1 1.1 1.0. 0.0 70 16 0 16 131 00.131 6 64 00 64 4 9.3 00 93 1 08 00 0.8 59 00 59 0 2. 20.9 0.0 209 2 3. 2.4. 5.918.8 0 0 0 00 0000 22 4 0 0 22 18.0. 0.0 18.0 1 5 3.3 0.8 4.1 2 12 4 0 2 22: 0.0 2.2 0. 12 12.9:0.0. 12.9 5 43 11 5.4 27 1/34 179.4 20.6.100.| 37 6 43 84.1 13.9.100. 93|29 122176. 3/23.7 100. 59 34. 9363.4366.100. SEPTEMBER Остовек NOVEMBER DECEMBER Number Per Cent Certain [Doubtful Total Cestain Doubtful' Total Number Per Cent Number Per Cent Number Per Cent Certain | Doubtful Total Certain Doubtil Total Certain] Doubtrull Total Certain | Doubtful Total Certain | Doubstul Total Certain | Doubtful Total 3 2 5 100 67 16.7 2 8 9.1 27.2 36.3 2 2.00 8 6.7 kk7 9. 3.3 26.7 30.0 2 2. 2 3. 4.5 9./13.4 3. 4,5 91 113.4 2 3 0 9 63 21.9 28.2 8 6 94 94 18.8 2 5 / 3 8.0 4.012.0 1120.0 4.0 24.0 8 00 25.0 25.0 3 40 8.012.0 23.3 3.3 Gl 3 4.5 9.1 13.6 2 3.1 316.2 0 a0 00 0.0 1 00 4.5. 4.5 0 00. 0000 0 00,0 0 0 0 0 00 0.000 / 0 0 0 / 40 0.0 0.0 0.0 40 0.0 00 00 0 0.0 00. 0.0 0.0 0 0.D 0.0 3 10.0 0.0 100 1 4,5 0.0 4.5 8.0 0.0 8.0 0 00 00 0.0 2 23.3: 0.0 23.3 2 33 3.3 6.6 0 3 0 / 310.0 3.1 0 00 0000 0 00 000,0 0. 3 136 0.0 13.6 е. 0. 0 6 18.7 0.0 187 1 40 80 300 e 0 00 0.0 0.0 0 0 0 00 00 00 1 40 0.0 4.0 161 14/30 153.3 4l. 7 100. 9/13 22 40.9 59.1100 13/ 19 32 406 59.4100.| 21 4 25840. 16.0/00. 170

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Evalsation 0- Balloon l-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds S-Clouds, Dust, etc. G Insuflic. into. 7-Psychological B-Unknown 30ther Total Evaluation 0-Batlcon 1-Astronomical 2-Airtraft 3-.Light Phenom. 4-Birds 5-Clauds, Dust, etc. E insuffic, Into. 7-Psychological & Unknown g-0 ther Total Evaluation 0-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 1-Psychological 8-Unknown 9 Other Totat TABLE A108 EVALUATION OF ALL SIGHTINGS FOR ALL YEARS BY QURATION DE SIGHTING FOR MONTHS OF _ YEAR, OVER THIRTY MINUTES JANUARY FEBRUARY MARCH APRIL Pes Cent Number Per Cent Number Per Cent Number Per Cent Certain | Doubtful Total Certain Doubtul| Total Certain | Doubtful | Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtfel Total 0 10.0 0.0 10.0 50.0 0,0 50.0 38.9 0.0 38.9 3 10.0 10.0 50.0 0.0 0.0 5.6 2 18.7 12.5 0.0.18.7 200 150.0 5.6 0.012.5 0.0 0.0 0.0 0 0.0 0,0 00 0.0 0.0 0.0 0.0 12.512.5 0,0 0.0 20 0 0.0 00 0.0 0.0 0.0 0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0| 0.0 0.0 00 00 0.0 00 0.0 0.0 0.0 0.0. 0.0 0.0 0.0 OL 0.0 0.0 0.0 4 0.0 25.0 0.0 0.0 0.0 0.0 a0 0 0.0 0.0 0.0 0.0 0.0 0.0 2 2 20.0 20.. 0.0 0.0 0.0 10 55.6 0.0 55.6 5 0.0 50.0 0.0 5 31.81 0.0 500 0.0 0.0 ao 0.0 0.0 0.0 31.8 0.0. 0.0 10 90.0 10.0 100. 2 2 1000 0,0 100. 18 18100.0 0.0 100. 14 16/875/2.5100. МАЧ JUNE Number JuLY Per Cent AUGUST Certain Doubtful Total Certain Doubtful Total (Certain Mouth Tolal Certain outal Total Certain, Dutil Tol Certin/ doct, Total Certain outal Total Certain ret Total 0.0 0.0. 0.0 0.0 1/14 0.0 0.0 10.0 7 2 2 29.2 8.3.37,5 114 221 14.3 7.1 214 31 9 11 5.6 /k.7 5 20.8 0.0,20.812 5. 17/2.2 5. / 11.3 2 83 0.0 8 14 6.1 8.2 14.31 8 3 7 15 14.8 12.9 27.1 5.6 5.L 11.2 0.0 0.0 0.0 0.0 46.7 0.0 0.0 0 0 0.0 8,3 0.0 1.0 6 0.0 0 0.0 0.0 0.0 0 0.0 0.0 1.0 0.0 1.9 1.9 0.0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 0 0.0 0.0 0.0 0 0 7 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0 8 8.2 0.0.8.2 0.0. 0.0 0.0 2 1.0 10. 2.0 7. 29.2 0.0 21.2 2 11/111.22.2 1 42 0.04.2. 3/ 4. 031 31.6 0.0|31.6 0 2 2 15 0 0.0 0.0 0.0 2 3.7 0.0 3.1 3.1. 0.0 3.7 15 278 0.0 21.8 0 4 41 0.0 4.1 4 4 0.0 1.4 1.4 7 9171.8 22.2 100. 22 2 24 917 8.3 1100 77. 21/98 786 214100.|36<8/54/66.7333/100. SEPTEMBER OCTeBER NOVEMBER DECEMBER Number Per Cent Certain Doubtful Total Certain Doubtful Total Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain] Doubtful Total Certain Doubtful Total Certain Doubthl Total Certain Doubtful Total Certain Doubttrl Total 2 2 0.0 4.3 6.3 3 10 36.8 15.8526 V 0.0 4.2 4.2 0 0 00 0.0 0.0 3 2 4 4.4 3.1125 0 53 0.0 5.3 2 5 12.5 8.3208 4 6.3.12.5188 // 0.0 5.3. 5.3 0.0 / 5 6 20.8. 25.0 3. 1 3./ 00 0.0 0.0 4.2 20 0.0 00 0.0 0.0 / 0 / 2. 11.1 11.122.2 0 0.0 0.00.0 0.0 0.0 0.0 3.1 0.0 3.1 2 2 10.5 0.0 10.5 00 0.0 0.0 0.0 0.0 0 2 L 14. 0 0 0.0 0.0 0.0 0 0.0 00 0.0 ao 4.2 14.2 0 0.0 0.0 0.0 2 6.30.0 63 0 0 0.0 0.0 0.0 2 83 0.0 8.3 0.0 0.0 00 3. / 0.0 3. / 0 0 0.0 0.00.0 - 0 / 4.2 00 4.2 2 22.2 0.0 22.2 14 437:00 43.7 0 4 21./ 00 21.1 3.1 0.0 3.1 0 7 292 0.0 22.2 0 4 444 0.0 444. 0 0.0 53 5.3 0 1 42 00 49 0 / 11.1. 0.0 11.1 24 8 32 75.0 25.0 100.14 - 5/9/13.1/26.3.100. 15 9 24 6 25 375 100. 8 1 9.889 11.1 100l 171

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Evaluation 0- Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds S-Clouds, Dust, etc. 6- Insuffic into. 7-Psychologica! 90ther Total Evaluation 0-Balloon 1-Astronomical /2-Aircraft 3-Light Phenom +-Birds 5-Clouds, Dust, etc. 6-Insuflic. Into. 7-Psychological 8- Unknown -Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. f-Birds S-Clouds, Dust, etc. 6-Insuffic. into. 7-Psychological e Unknown Bother Total TABLE ALOg EVALVATION OF ALL SIGHTINGS FOR ALL YEARS BY DURATION DE SIGHTING FOR MONTHS OF YEAR, OURATION NOT STATED LANVARY FEBRUARY MARCH Number Per Cent Number APRIL Per Cent Number Per Cent Number Per Cenl Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0,0 2.3 2.3 1 4 11.8 0.0 11.8 1 4 6.2 2 3 1.63. 3.2|4.8 9 4 0.0 6.2 18 27 120.9 41.9 62.8 8 16 23.5 23.5 470 12 11 23 18.5 16.9354 24 30 38.1 9.7 484 2 4.7 0.0 4.1 5 6 147 2.917.6 3 11 12.3 4. 616.9 6 0 0.0 00 0.00.0 0.0 0.0 0.0 00. 0.0 0.0 00 00 00 0 00 0.000 0 00 0.0 000.0 0 00 0.0 0.0 0.00.0 0.00.0 5 0.0. 5 11.6 00 11.6 0 0.0.0.000 6 13.9 0.0. 13.9 1 000 2.9 0.0 2.9 0.0 0.0,0.0 20.4 0.0 20.6 21 3 0.0 21 32.3 0.0 32.3 0.0 00 00 4.6 00 4.6 2 2 3 4.7 00 47 0100 000.0 3 00 46 46 0 000000 9.1 0.0 9.7 0.00.0 1.6 0.0 1.4 1R 0,0 0.0 0.0 12.3 0.0 19.3 9 1.6 0.01.6 14.5 0.0.14.5 0 0.0. 0.00.0 24.19|43|55-844.2100.25 934135265100/48 17 65 738 262100. 54 8 62/811 12.91100. MAY Number Per Cent JUNE Number Per Cent Number JuLy AUGUS? Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtius Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 4 3 4 80 0.0 8.0 7.112.5 0.012.5 2 4 / 0 13 22.0 4.0 26.0 3. 10 12.5 6.0 4 5 1.1. 5.4.17.9 7 8.014.0 L / 1.8 8.9 0.0 2.0 2.0 0. 0 2.0 2.0 0. 0 0.0 0.00,0 0.0 00 0.0 0,0 0 0.0 0.0 0.0 0 0.0 6 12.0 0.012.0 0 0.0 0.0 13 0 13 23.2 0.0 23.2 29 29 32 3 2 3 41 40 11.4 43.15.7 5 4 4. 8 3.8 8.6 10 19 3911.4 , 3.9 15.3 817 8.6 5/ 7.4 19.9 13 24 1.7 163 12.5 10.612.5 23.1 3 1.2 0.0 1.2 2 1.9 0.0 1.9 3 0.8 3 1.2 0.4 1.2 1.2 0 0.0 0.0 0.0 0.0 0.0 0.0 6 14 0 41 16. 1 0.0 16.1 0 / 00 0.0 0 2 3. 4 17 0.0 0.0 3.6 34.0 0.0 34.0 0. 17/30.3 0.0 30.3 0.01 2.0 2.0 2 2 13.6 48 0. 0.0 3.6 24 2 0 3 0.4 0.8 48 1.2 18.8, 0.0 18.8 24 9.4 0.0 9.4 19 29 2 0.0 19 183 0.0 18.3 1.0 0.0 1.0 0 29 3 27.9 0.0 21.9 14..9 1.0 2.9 41 9 50 82.0 18.0 100. 152 4 56|92.91.1 100. 212 43.255|83.1 16.9 100. 781 26 1041/5. 0 25.0.100. SEPTEMBER Number Остовєк NOVEMBER DECEMBER Per Cent Number Per Cent Number Per Cent Certain Doubtful| Total Certain Doubtful Tolal Certain Doubthal| Totas Certain Doubttul Total Certain | Doubthl Total Certain Doubtful Total Number Per Cent Certain| Doubtful Total Certain | Doubtful | Total 0 0.0 0.0.0.0 7 6.5 8.7 15.2 9 10 21 18.7 20.8 10 3 13 2 3 23.2 7.0 300 1. 10 15. 2 21.7 9 6. 15 18.7.12.5 31.2 2.3 2.3 4.6 3 7 1.5 8.7 15.2 5 2 2 10.4 4.2 14.6 0.0 2.2 0 0.0 / 6 4 / 22 22 44 /1 17 13.0 23.9 36.9 5 8.7 2.2 10.9 0.0 0.0 0.0 2.2 0.0 0.0 0.0 2 0.0 4.3 0.0 0.0 0.0 0.0 0000 4.3 0.0 0.0 0.0 0 2.1 0.0 0.0.0.0 0.0 9 9 0.0 20.9 0.0 0.0 0.0 8.3 2.1 0.0 0.0 0.0 0.0 0.0.20.9 15.2) 00/15.2 0 8.3 5 0.0 10.9 / / 2.3 00 2.31 4 10.9 0 2.2 0.0 2.2 / 2•2 0.0 | 2.2 11. - 0 11 256. 00 25.6 9. 9 20.0 00 20.0 0 12 26.1 0.0 261 6. 1 7 14.0 2.316.3 2 0 2 43 0.0 4.3 2 • 3 2 0 8g g 2 22 00 22) 0 2 4.2 00 4.2 38 543/88.4111.6.100 /30 16 466523481100. 30 18 48/2.5 37.5 100: 133 13 46 11.8 28.2, 100 172

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Evaluation o Balloon J-Astronomical 2- Aircratt 3- Light Phenom. d- Birds 5-Clouds, Dust, etc. 6- Insuffic into. 7-Psychological 8-Unkn0wm s-Other Tora Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuftic. Info. 7-Psychological 8 Unknown 9-Other Total yamation 0-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G- Insuffic. info. 7-Psychological & Unknown 9-0ther Total TABLE ANO... EVALUATION OF UNIT SIGHTINGS FOR ALL YEARS BY DURATION DF SIGHTING FOR MONTHS OF YEAR, FIVE SECONOS OR LESS JANUARY FEBRUARY MARCH APRIL Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful| Tola! Certain Doubtful Total Certain Doubtful Total Certain Number Per Cent Number Per Cent Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total 0.0 0.00.0 0 00 0.0 0.0 0 00 00.00 / 83. 00 8.3 9 12 20.0 60.0 800 0.0 0.0 0.0 3 0 0 9 30.0 60.0 90.0 0 0.0 0.0 0.0 4 0 6 10 33.3 50.0. 83.3 0 6 50.0 00 50.0 00. 0.00.0 0.0 0.0 0.0 0 0.0 0.0 0.0 1 83 00. 83 0 0.0 0.00.0 00.0.000 0 00 0.0.00 0.0 0.0 0.0 0 0 0.0 0.0 00 0 8.3 83 0.0 0000 0 0 0.0 0.0 0.0 0 0.0 0.0. 00 0 0.0 / 0.0,0.0 61 0.0 6. 7. 0 0 0.0 0.0 0.0 0 / 83. 0.0. 8.3 00 0.000 0 0 0 00 0.00.0 6.1 0.0 6.7 10.0 0.0, 0.0 0 1 83. 0.0 8.3 / 10.0 8.0 10.0 0 0 2 0 0.0 0.0 0.0. 0.0 / 8.3 0.0 8.3 0 0.0 000.0 2161 00 167 0.0 6:7,6.7 0 0 00 0.00.0 0 00 00 0.0 5 10 15/33.3 66.7100. 4 6 10|40.0. 40.0.60.0,100 6 6 12/50.050.0/00.| 112 91.1 8.3/100 MAY Per tes Number JUNE Per Cent Number JULY AUGUST Per Cent Number Per Cent Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total 0.0 0.0 0.0 3.7 0.0 10.5 36.8 18 37 2 1.1 2.2. 3.3 0 3 3 0.0 3.9. 3.9 2 26.3 10 37.0 29.6 666 36 18 54 39.119.5 158.6 3 11.1 13 / 21. 53.26.4 3.7 14.8 17 8.1 35 48 16.9 45.4 423 9.8.18.5 3 9 13.9 / 1.8 11.2 0.0 0.0 0.0 0.0 0.0 0.0 1.10.0 1.1 / 0.0 1.3 1.1 3.3 0 1.3 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 2.2 0.0 0,0 0.0 1.1 1.1 0.0 0.0 0 15.8 0.0 0.0 15.8 3 0.0 0.0 0.0 00 3 /1./ 0.0 II. 2.2 0.0 2.2 1.8 0,0 1.3 1.8 0,0 0.0 0.0 0.0 0.0 0.0 0.0 2 10.5 0.0 10.5 0.0 0.0 0.0 2 10.5 0.0.10.5 3.1 0.0 3.7 16 3 1.19 84.215:8.100. 18 9/27/66.11.33.3100 9 2 60 1.8 1.3 0 9.8 0.0 2.2. 0.0 9.8 0.0 2.2 2 1.8. 3 2.61.3 -3.9 32 92 65.2/34.81100. 3L 46 77/40.2159.8.100. SEPTEMBER Number Per Cent Остовєк NOVEMBER DECEMBER Per Cent Certain Doubtful Total Certain | Doubttul Total Certain | Doubtful Total Certain| Doubtful Total Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total Certain | Doubtful| Total 0.0 0.0 0 0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 1R 55.0 5,0 60.0 12 5 17 4 42.9 17.9 60.8 7 14 33.3 33.3 64.6 9 20 4.8 14.3 47.8 39/ 86.9 50 10.0 15.0 3 3.6 10.7 2 9,5 0.0 0.0 0.0 0 0 2 14.3. 0 0.0 0.0 0.0 D. 0.0 36 3.6 4.8 0.0 4.8 0.0 0.0 0.0 0.0 0.0 00 36 0.0 36 0.0 0.0 0.0 0.0 0.0 00 7.2 0.0 0.0 0.0 0.0 0.0 0.0 a0 0.0 0.0 2 10.0 3.6 0.0 3.6 0 0.0 0.0 0 0.0 00,00 0.0 0.0 2 100 0.0 0.0 50 0.0 10.0 5.0 40 0 100 0 0.0 0.000 0 0 00 00 001 0 • 00 00 00 0 3 10.1 00 10.7 9.5 0.0 9.5 000. a0 00 • 7 95 00 95 0. 3 13.0 0.0 13.4 0 0 00 00 0.0 16 41 20/80.0|20.0100. 18\10 28/44.3 35.7 100. 1/3 8 21 61.9|38.1 100. | 14 _9|23/60.9/39. 1 100. 173

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Evaluation Io- Balloon ¡ 1-Astronomical (2-Aiscraft 3-Light Phenom 14-Birds 5-Ctouds, Dust, etc 6 Insuffic Info. 7-Psychological 8- Unkno m 3 Other Total TABLE EVALUATION OF UNIT SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING FOR MONTHS OF YEAR, SIX TO TEN SECONAS JANUARY FEBRUARY MARCH Number Per Cent Number Per Cent Per Cent APRIL Per Cent Certain Doubtful Total Certain Doubttul Total Certain Doubttul Total Certain Doubtful Total Number Certain Dosbtful Total Certain Doubtful Total Humber Certain Doubtful Total Certain Doubtful Total 0 0.0 0.0 0.0 2 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20.0 20.0 40.0 a0 0 100,0 1000 20.0 0.0 20.0 0 0.0 2 2 22.2 0.0 122.2 20.0 20.0 0 0.0 0.0 8.0 20.0 0.0 20.0 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 2 3 22.2 11.1 33.3 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 0 00 0.0 ao 0.0 0.0 0 00 0.0 0.0 00 0.0 20.0 0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0. 200 0.0 0.0 0.0| 0.0 0.0 0.0 0.0 0.0 0.0 200 0.0,20.0 0.0 0.0 10.0 0.0 ao 0.0 0 0.0 0.0 0.0 3 2 5 60.0 400/100. 0 0 / 100.0| 0.0 | 100. 0 0 3 5 0.0 0.0 11./ O. 11. / 0.0 0.0 0.0 0.0 0.0 0.0 3 60,0 0.0 600 3 333 0.0 33.3 0.0 0.0 0,0 0.0 0.0 0.0 51000 0.0 100. 8 9 88.911./100. Evalzation 0-Balloon (1-Astronomical 2-Aiecraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological 8-Unknown 9-Other saraton 0-Balloon 1-Astronomical 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Info. 7-Psychelogical 8 Unknown. Total MAY JUNE Number Per Cent Number Per Cent Number JuLy AUGUST Per Cent trumber Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubthul Total Certain Doubtfut Total Certain Doubttul Total 10.0 0.0 10.0 / 2 20,0 0 5.6 0.0 5.6 0.0 10 16.7 38.9 2.9 2.9 0.0 0.0200 2 10.0 10.0 200 2 55.6 14 3 3 16.7 0.0 16.2 6 3 20 40.0 11.1 57.1 14.3 10.0 10.0 0.0 0.0 8.6 22.9 3 29.6 0.0 5.6 5.6 0.0 0.0 0.0 0 0.0 0.0 3.7 0.0 0.0 0.0 0.0 0.0 0.0 a0 0.0 0.0 0 0.0 a0 0.0 2 2 20.0 0.0 20.0 2. . 9 0.0 2.9 0 0 0.0 00 0.0 20.0 0.0 0.01 8 0 0 2 110/800 20.0100. 0.0 20.0 0.0 10 00 0. 0 5.6 0.0 5.6 0 0.0 0.0 0.0 8.18 155.6.44.4 100. 26 00 0.0 0.0 0.0 LL 11.4 0.0 114 14.8 2.9 0.0 2.9 / 3.7 0.0 0.0 0.0 14.8 3.7 9 35 74.3 25.7.100. 118 9. 27/67/33.3100. SEPTEMBER OCTOBER _ NOVEMBER DECEMER Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain | Doubtfull Total Certain Doubtful Total Certain Doubiful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total L 0.0 10.0 10.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 200 10.030.0 4 0 0.0 3 7 444 33.3| 77.7 3 00 75.0 0.075.0 2 0.0 100.0 100.0 0 0000 3 5 2 0.0 20.0 20,0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0. 0 0.0 / 0.0 10.0 10.0 0.0 .0 0.0 0.0 0.0 0.0 0.0 0.0 0,0 0.0 00 0.0 0,0 O. 0.0 0.0 0.01 0.0,0.0 0 0 2 0.0 0 0 00 00 00 0 000 0.0 00 00 0 00 00 0.01 0. 00 0 5 3 340 0.0 300 0 2 222 0.0 22.2 / 25.0 0.0 25.0 0 0 00 0.0 00 0 0 00. 0.0 0.0 0 0.0. 0.0 0.0 10/50.050.0100. 6. 3/ 9/66.7333 100. 14 0 4 1000 0.0 100- 0.0 0.0 0.0 00 0.0 0.0 0.0 0.0 0.0 00 00 2 0.0 100.0 100. 174

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Evaluation 0 Balloon 1-Astronomical 2-Aiscraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuftic Into. 7-Psychologicat 8- Unknown 9-0ther Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. + Birds 5-Clouds, Dust, etc. G Insuftic, into. 7-Psychological 8-Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuffic. info. 7-Psychological 8 Unknown 9-0ther Total TABLE AULL EVALUATION OF UNIT SIGHTINGS EOR ALL YEARS BY DURATION DE SIGHTING FOR MONTHS OF YEAR, ELEVEN TO THIRTY SECONDS JANUARY FEBRUARY Number Per Cent Number Per Cent Number MARCH APRIL Per Cent Witnes Per Cent Certain Doubtful Total Certain Doubtful, Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfd Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0 00 0.00.0 0 0 00 0.00.0 00 . 9. 1/ 9.1 0 0 00 00 0.0 5 k7 da 7 8.3.4 1 50.0 0.0 50.0 00 00 00 5 26.1 67 33.4 0 0 0 0 0 0 00 0.0 0.0 0 91 00 0 00 0.000 0 00 00.00 116.7 00 10.7 0 00 0 00 00 0.0 0 0 00 0.0.00 0 00 00 00 00.0.00 00 5 / 6 833 16.7 100. 0 000000 2 150.0.0.0 50.0 L 9.1 0 0.0 00.0.0 0 0.00.0 0.0 0.00. 0000 0 00 00. 00 0 00 00 00 0 00 00 00 0 00 00.00 00.0 00 00 0 00 0.0 00 0 00 00 00 00.0 0.0.0.0 2 2 182 0.0.18.2 0 00 00 00 6 7. 9.154.5 63.6 ANAN 0 0 3 NO 00 4. 13.3 13.3 264 6.1. 0.0 67 61 0.0 6.7 0.0 00.00 0 00 00 0.0 000 00 00 00 3 200 00 200 6.200 67 2 Vood 0.0 100 4 71 1136.463.6100. 12 3/5/80.0 20.0/00. MAY Number Per Cent Number JUNE Per Cent Number Doubtful| Total Certain| Jusy Per Cent Humber AUGUST Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2 k1 4713.4 0 < 5.9 0.0 5.9 3 3 4./ 4.1 8.2 0,0 167 3. 5.9 10 2 12 13.5 2.1 12 17.1 2.9 1.8 16.2 2.9 0.0 47 17.1 2 0 4 3 3 20.0 5 17.2 133 7 29,4 11.841.2 15 16 31 0 00 20.3 21.6 41.9 6 34.2 0.0 0.0 0. 0.0 00 0.0 0.0 6 0 4 10 11.1 1.428.5 0.0 2.9 0.0 4.7 00. 6] 2.9 0 0.0 0.0 0.0 00 0.0 00 00 10.0 0 00 0 00 0.0 0.0 4 0 26.7 0.0 0.0 26.7 0.0 0.0 00 3 20.0 0.0 200 3 0 3 0 0 3 176. 0.0 11.6 0. 00 0.0 0.0 3 17.6 0.0 117.6 00.0 0 3 15 0.0 0.0 0.0 0.0 00 0.0 3 0.0 5.7 0,0 5.7 2 0 6 4.1 0.0 54. 2.2 4.1 8.1 0.0 0.0 15 0.0 25.1 0.0 0.0 20.3 20.3 6.7 0.0 00 14 0.0 1.4 0 0.0 25.7 0.0 6.1 0.0. 0.0 12, 3 15 30.0.20.0100. 13 4 17.16.5. 23.5 100. 51/232468931.1100. 231 12/35 65.134.3100. SEPTEMBER ОстовЕе NOVEMBER DECEMBER Humber Per Cent Number Per Cent Number Per Cent Certain Doubtiul Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Dowbtful Total Number Per Cent Certain Doubtful Total Certain Doubtful Total 2 2 00 33 123 000 0.00.0 0.0 0.0 0.0 2 2 0.0 16.7 16.7 2 6.7 83.50.0 2 50.0 0.0 50.01 3 3 25.0 0,0 25.0 4 0 0 0 2 13.4 7 26.7 20.0 46.7 00.0 0000 0 0 00 0000 LL 00 6.7 61 0 0 0 2.13.3 0.0 13.3 167.00. 61 8 1 67 00 62 0 00 00 00 0 2 0 0 0 0 0 641.7 3 8.3 16. 1.25.0 0 00 0.01 0,0 0 00 0.0 00 0 0 0 2 50.0 0.0 500 0.0 8.3 25.0 33.3 0.00.0 0.0 0.0 10.0 0.0 0.0 0 0,0 0.0 0.0 / 0.0 8.3 8.3 0 0.0 00 0.0 0.0 0.0 0.0 1 8.3 0.0 8.3 0 0.00.0 0.0 00. 00 000.00.00 0 0 0 00 0.000 0 0 00 00 0,0 183 00830 0 0 00 0.00.0. 21 0 2 16.7 00 16.7 0 8 0 00. 0000 0 0 0 00 0000 / 0 1 83 00 83 + 15/533 467-100 8 4|12 /6.7/33.3.100 4 0l 4 100.0 0.0100|7 | 5 12 58.3 58.3/41.7100. 175

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Evaluation 0-Balloon eterorale. 2-Aircraft -Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuftic. info. 7-Psychofogical 8 Unknown Bother Total Evaluation O-Bailoon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological 8-Unknow g-Other Total real tration 0-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds |5-Clouds, Dust, etc. 6- Insuffic, tnto. 7-Psychological &- Unknown 9-0thes Total TABLE AIL3 EVALUATION DE UNIT SIGHTINGS FOR ALL YEARS BU DURATION OF SIGHTING EOR MONTHS _SEAR, THIRTY ONE TO SIXTY SECONDS JANUARY Number FEBRUARY MARCH Арен Per tell Certain Doubtful Total Certain Doubtful Total Seti outa Total certain oratil Total Certain outal Total Certain out / Total Number Per Cent Certain Doubtful Total Certain Doubtful Total 0.0 100 0.0 0 0 0.0 0.00.0 143 0,0 114.3 00 6.3 63 0 0 0 0.0 00 0.0 0 0.0 0.0 0 0 0.0 0.000 0 00 0.0 0.0 4.3 0.0. 1.3 0.0 2 3 20.0 400.600 0.0143 6.3 6.3 12.6 00 00 14,3 2 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 00 0 0,0 00 0.0 0 0.0 0.0 0.0 3 0.0 0.0 00 0.0 0.0 0.0 0.0 00 0.0 0.0 000 0.0 0.0 0.0 0.0 00.0.0 00. 0.0 0 0 0 3 42.9.00 42.9 6.300 6.3 0.0 00.00 0 0.0. 000.0 100.0 0.0100.0 20.0 00 200 00 0.0 0.0 0. / 1100.0 0.0100. 1 3 0 0 0 21 5/0.040.0/00 0.0 0.0 0.0 0 0.0 0000 14.3 2 0 12.5 0.0 12.5 00. 0.0 0.0 0.014.3 9 56.2 0.056.2 120.00.0. 20.0 00 14.3 14.3 00. 0.0 0.0 7185.2/14/3100. 2 16/875 125100. MAY -JUNE JULY Number Per Cent AUGUST Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful, Total Certain | Doubtful Total Certain Doubtful Totat Certain Doubtful | Total 0 00. 00.00 0 0 00 00.00 5 2 7 10.6 4.3 14.9 4 5 3/1. 12.5 156 3 428: 0.0 428 0 00 0.0 12.100 21 2. 28.6. 0.0 28.6 0 00 2 5 37.5 25.062.5 L 12 12 24 25.5 25.5 510 0000000 000 00 0.0 11/00 2.1 3 3 3 9.4 9.4 18.8 2 5 94 43 15.7 3.1 3.L 00 0 0 2.1 2.1 2.1 0,0 0 20 0.00.0 00. 0.000 0 0.0 00 00.0 00 00 20.000 0,0 0 0.00.000 2 2 28.6. 0.0, 28.4 0 0 2 e 00 00 0.0. 00.0.0 0 00 00 00 0.0 0.0,00 0.0. 0.0 0.0 2 25.0 0.0 25.0 3 10 3 I 6.4 00 6.4 0 0. 00 00 0.0 4 2 0 10 21.3 0.0213 0 0 0 0 0.0 00 0.00.0 12.5 0.0 12.5 2 6.3 0.0 6.3 2 28./0.0 28.1 1 0 0 0 0.00.0.0.0 0.0.12.512.5 0 0 00 00 00 0 0.0 0.00.0 1 100.00.0 100 5 3 / 8/62.531.5100 321 1547/68131.9 100/22 10 32/68.731.3100. SEPTEMBER Number OCTOBER NOVEMBER Per Cent Per Cent DECEMBER Him he Per Cent Number Mon sel Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain. Doubtful Total Certain Doubtful Total Certain Doubtful Total 0.0 / 14.30,0 14/3 0.0 20.0.200 2 3 1.1 1.7 315.4 1.7 23./ 2 2 286 0.0 286 200 400 4. 23./ 1.1 301 14.3 0.0.14.3 0 0.0 40.0 / 20.0 20.0 L 3 2 6 2 17 13.4 2 4 13.3 13.3 26.4 2 5 20.013.3 33.3 10000 0.0 0 0.0 0000 0. 0.0 0.0 0.0 0 0.0 0.0 0.0 10,0 0 12. 1.1 0,0 0.0 0.0 0 0,0 000.0 0.0 0.0 0.0 0.0.0.0 00 0.0 0.0 0 0.0 0.0 0.0 1.1 0.0 1.1 0 20.0 0.0 0 0.0 20.0 0.0 0.0 0 00 00. 0.0 _ 3 23.1 0.0 23.1 0. 3 0.0000.000. 0. 0 0 0 00 00 00 0 0 0 00 0.0 0.0 0. 3 42.8 0.0 428 0 00 0.0 00 2 0, 0 00 0.00.01 0. 0 00 00 00 0 0 00 0.0. 00. 0 2 13.3 0.0 13.3 0 2 13.3. 0.0|13.3 9 4 13 692,308 100. 71 01 1. 100.00.0 100/2 13 5 400.60.0000 10 5/15 (ele 2|33.3:100. 176

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Evaluation Q- Ballcon 1-Astronomical 2-Aircraft 3 Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic, into. 7-Psycho lo gi cal &- Unknown 9-0 ther Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insultic, Info. 7-Psychological 8 Unknown 9-Other Total Teal nation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-InsuMic. Info. 7-Psychological 8-Unknown 9-0 ther Total TABLE AI4 EVALVATION OF UNIT. SIGHTINGS FOR ALL YEARS BY DURATION DE SIGHTING FOL MONTHS JANUARY FEBRUARE ЧЕАК, SIXTY ONE SECONDS. TO FIVE MINUTES MARCH APRIL Number Per Cent Per Cent Nuraber Per Cent Per Cent Certain Doubttal Tolat Certain Doubtful Total Number Certain Doubtful Total Certain: Doubtful Total Certain Doubtful Total Certain Doubttal Total Number Certain Doubtful Total Certain, Doubtful Total 2 10010.0 20.0 0 91. 0.0 9.1 0 9.1 0.0 9.1 2 77 0.0 2 2 20.0 0.0 20.0 0 0.0 0.0 2 3. 20.0 10.0 30,0 0.0 0 0.0 0,0 0 0 0 0 0.0 0.0 0.0 0 00 000.0 0 0 0,0 00. 00 2 0 0 9.1 9.1 0.0 18.2 0,0 18.2 0.0 0.0 0.0 0,0 0.0 0.0 2 0 2 4 18.2 18.2 36.4 0,0 0,0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10,0 0.0 10.0 a0. 0.0. 0.0 100 00100 10.0 00100 2 10 80.0 /20.0100. 2 3 2 10 18.2 18.2 0.0 9.1 0.0. 0.0 0.0 3 11.5 0.0 0.0 0.0 3 3 0.0 27.3 0,0 18.2 21.3 0.0 18.2 1L 90.9 9.1 100. 5 0 3 6 0.0 0.0 3•0 .0 3.8 2 3 11 0.0 18.11 0.0 18.2 34.6 0.0 34.4 0.0 27.3 27.3 3.8 0.0 3.8 454154.6100 24 2 26/22.3 7.z 100 MAY Number Per Cent Number JUNE Per Cent Number Lucy Per Cent Number AUGUST Per Cent Certain Doubtful Total Certain | Doubtfulf Totall Certain] Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain] Dorotful Total Cerlain Doubttul Total Certain Doubtful Total 2 8 2 19.3 6.5 25.9 0.0 6.5 9 6.5 9.7.19.3 29.0 0 0 0 0 0 0,0 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 4 12.9 0.0 12.9 0.01 0.0 0.0 6 2 6. 19.3 0.0 19.3 2 6.5 0.0 6.5 6. 5 0. 0 0 0 0 3 2 7.20.1 3.4 24.1 19 14 33 /4.4 10.6. 25.0 10 12 22 14.9 17.9 3 3.1 2 32,8 3.4 6.9 10.3 4 0.8 2.3 / 1.5 1,5 3.0 4 9 17.2 13.8 31.0 20 14 34 15.110.6 25.7 10 4 14 14.9 6.0: 20.9 0 . 0. 0,0 0.0 0.0 7. 4.5 0.8 0 .0 0.0 0 5.3 0 0.0 3 3 0.0 4,5 4.5 0.0 0.0 0.0 0 0.0 0.0 0 0 0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 0.01 0 00 0.00.0 0.0 0.0 0.0 013 0.0 3 0.0 4.5 0 0.0 0.0 0.0 13 3 5 9.8 9.8 45 1.5 2.3 7 33 0.0 38 3 18 18 3.0. 1,5 26.90.0 4.5 24.1 0.0. 24.1 0. 33 25.0 25.0 126.9 .3102 0.0 10.3 3 0 32.3 0.0 2.3 2 30 0.01 3.0 2/ 10 3/|67.732.3100. 22 7129/15.9 24.1 190. 97 35/32 73.5 215 100. 146/21|67/687 313 100. SEPTEMBER NOVEMBER DECEMBER Number Per Cent Number Per Cent Certain | Doubtul Total Certain Doubttul Totall Certain | Doubtfull Total Certain Doubtful Total Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 3 5 8 8.3 13.9 2 13 2.8 2.8 222 5.6 2 2.8 33.3 36.1 0. 0.01 0.0 0.0 0 0.0 0.00 0.0 0.0, 0.0 0.0 / 2.8 0.0 2.8 0 0 0.0 0.0. 0.0 12 0 12 33.3 0.0 33.3 2 3 0 0 8 46 1.7 15.4 23.1 2, 2 0.0 1.7 1.1 5 8 11,5 19.2 30.7 0 0.0 00 0.0 0 0.0 0.0 0.0 0.0 0.0 2 0 0 0 2 250 0.0 25.0 2 / 3 1... 5.6 16.7 0 125 0.0 12.5 / 2 5.411.2 0.0 0.00.0 5,6 / 5.6 22.2 278 / 125.00.125 0.0 0.0 00 00 00 00 0.0 0.0 0.0 0.0 2 0.01 25.0 250 0.0 00|0.0 0 0.0 3.8 0 0.0 2. 2 11./ 0.0 11.1 0 3.8 0.0 00 0.0. 0.0 0.0 0 0. 0 0 0.0 0.0 0.0 $ 308. 0.0 30.8 0 0.0 0.0 0.0 0 / 38. 0.0 3.8 ON 0. 0 00 00. 00. 2 25.0.00 25.0 3 6 333 a0 33.: 0. 0 00 00 00 0 2 0 00 00 0. 18 18/36 500/50.0 100. 10o.|15 (11 26 51.1.42.31001 6 2/ 8 150 25.0100. 12| 6 18 <4.733.3100. 177

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Evaluation 10- Balicon 1-Astronomical 2-Aircraft 3-Light Phenora. 4-Birds 5-Clouds, Dust, etc. 6 insuffic into 7-Psychologi cal 8- Uricrowa $-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 2-Light Phenom. + Birds 5-Clouds, Dust, etc. 6- Insuffic. Into. 7-Psychological B-Unknown 9-0ther Total Evaluation 0-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4 Birds 5-Clauds, Dust, etc. G insuffic. Info. 7-Psychological 8-Unknown 9-0 ther Total TABLE RILE EVALUATION DE UNIT SIGHTINGS EDR ALL YEARS BY DURATION OF SIGHTING EOR MONTHS DE SIX. TO THIRTY MINUTES JANUARY Number FEBRUARY MARCH APRIL Per Cent Humber Per Cent Number Per Cent Number Per Cent Certain Doubtful Tolal Certain Doubtful Total Certain Doubtful Total Certain Doubtiul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Deuhtial Tota 2 1.1 3 3 27.3 0.0 0.0|0.0 0/00004 4 214,2 00 27.3 2.8.3 8.3. 16.6 0000000 3 21.4 0.0 214 9.1 00 21 8.3 0.0 83 2 15.4 0.0 15.4 3 14.3 7.1.21.4 2 2 0 0.0 0.0 18.218.2 3 30.8 0.0 30.8 0.0 0.0 0 0.0 .8.3 16.7 250 0.0 0.0 00 0.0 0.0 0.0 0.0 0 00 00 0.0 0.0 0.000 0.0 0.000 0 0.0 00 0.0 0.0 00 0.0 0.0 00 00 0.0 0.0 00 00 0.0 00 00 0.0 0.0. 0.0 0.0. 7.1 0/0/ 4 286. 0.0 28.4 0 000 0.0 0.0 0.0 1.7 0.0 7.2 0 41 0.0 7.1 12214|85714.3100. NO 3 9 0.0. 00. 0.0 0.0 00 00 0 2 182.00 182 0.0 0.0 0.0 0.0 0.0 5 415 0.0 415 466.2 0.0 0.0 46.2 3 273 00 27.3 0.0. 8.3 8.3 0.0 0.0 0.0 21/1/818/18.2100 8 4/2/667 33.3 100/13 13. 100.0 0.0 100. Number Per Cent JUNE Number Per Cent Number JULY Pa com Number AUGUST Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Totad Certain Doubtful, Total Certain Doubtful Total Certain Doubttul Total Certain Doubtfal Total 44 Nv 2 9 24.1 6.9 3/0 3 10 18.9 8. 1 27.0 24 12 36 20.010.0 30,0 13 30 19.5 14. 934.4 3 6.9. 34 10.3 510.31 6.2.17.2 2 5 4 0 5.4 0.0 5.4 4. 11 21.6 5.8 3.3 4.1 10 9.2 2.3 11.5 135 8 24/3.3 6.7 20.0 6 17 1. 9 2.2 3 2,5 126 19.5 3 10.5 0.0 10.3 0 2.1 5 4.2 4 ao e 0 0.0 1.7 0.0 0.0 4.6 4.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0/41 2 0 0.0 34 0.0 3 10.3 34 0,0 0.0 0.0 0.0 0.0 0.0 / 0.0 0.0.10.3 0.0 0.0 0.0 3 4 8. 0.0 1.1 8.1 6.9 0.0 6.9 0 0 4 10.8 0.0 10.8 24.3 0.0 24.3 3 34 6.9.103 0.00.0 0.0 16 22 4 116 13.3 0.0 13.3 6 1.1 0.0 6.9 0.0 0.8 22 -18.3 0.0 0.8 5 18.3 2 12 2 2.3 0.0 12 2.3 13.8 0.013.8 3.310.8 4./ 5 4.4 1./ 5.1 22 7 29125.9. 24. 1.100. 3/ 6 37 838 16.2 100. 9327/20 775 22.5 100. 59 28 87/67.8.32.2 100. SEPTEMBER ОстовЕе NOVEMBER PELEMBER Per Cent Number Per Cent Number Per Cent Numbes Per Cent Certain Doubtful Total Certain | Doubtful Total Certain Doubttul Total Certain Doubtful Total Certain Doubthul Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total 3 / 2 5 0.0 6.7 16.7 0.0 30.0 30.0 2. 6 8.1 2 5.0 17.4 261 2 3 8.0 4.0 112.0 2 0.0 10.015.0 2 8 6.7 6.7 33. 26.7 3001 10 40 8.1 13.0 21.2 5 6 10.0 4.0 24.0 2 3.3 0 0.0 3.3 lab 0.0.0.0 / 0 2 2 3 3 5.0 10.015.0 3 0.0 13.0 130 2 3 4.0 8.012.0 5.0 10.015.0 4.3 4.3 0.0 8.L 0.0 4.0 0.0 0.0 4.0 00 5.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00.0 0 0.0 0.0 0.0 3 10.0 0.0. 10.0 5.0 0.0. 5.0 / 4.3 0.0 4.3 0.0 0.0 0.0 2 8.0 0.0 8.0 0. 0.0 00 0.0 0 0 00 00 00 0 0 0 00 00 00 4.0. 0.0 4. 0 / 233 0.0 233 3 0 3 15.0. 0.0 15.0 ... 0 6 26./0.0 241 8 32.0 0.0 32. 2. 33 3.3 66 0 0 00 0000 • 0 00 0.0 00 0 1 40 00 4.0 16. 14/3063.3146.7100. 63.3146.7100.| 7/13|20/35.0, 65.01100.l12,/1 23/522.4/8 100/21 425/84.0 16.0100 178

━ PAGE 188 ━

Evaluation 0-Balloce J-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insullic Into. 7-Psychological &- Unknown 9 Other Total TABLE AUlL EVALUATION UNIT SIGHTINGS EDR ALL YEARS BY DURATION DE SIGHTING EOR .... MONTHS VEAL, OVER THIRTY MINUTES JANUARY FEBRUARY APRIL Number Per Cent Nuraber Per Cent Number Per Cent Number Per Cent Certain Doubtil Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Cartain Doubtful Total Certain Doubtful Total Certain Doubtful Total / 250 00 25.0 / 50.0 00 0.0 2 2 40.00.0 40.0 3 33.3 0,0 2 25.0 25.0500 1 50.0 0.050.0 / 200 00 200 2 22.2 0.0 33.3 22.2 100 00.00 00.0 0.0 00 00 00 00 0.0 11. 1 0.0 0.00.0 0 00 00 0 0.0 00 0.0 0.0 0.0 0 0 0.0 00 0.0 0.0 0. 00 0.0 10,0 00. 00 0 00 0.0 00. 0.0 0 0.0 0.000 0.D 0 00 0.0 0,0 0 00 00100 0,0 0,0 0.0 2,0 0.0 0.0 0 00 0.0 0,0 0 00 00 00 11./ 0,0.11.1 0.0 0.0 0,0 0 00 0.0 0.0 0 00 00 0.0 0.0. 0.0 0.0 0.0 25.000 25.0 0 0.0 0.0 0.0 0 0 0.0 00 0,0 2 0 0 0.0 0.0 0 0 2 40.00.0 • 40.0 2 22.2 0.0 22.2 0 00 0.0. 00 0000.00 Evaluation 0-Balloon 1-Astronomical 2-Aircratt 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic, Info, 7-Psychological 8-Unknown 9-Other Total Evaluation 0-Balioon I-Astronomical 2-Aircratt 3-Light Phenom, 4- Birds 5-Clouds, Dust, elc 6- Insuffic. Info. 7-Psychological &-Unknown s-Other Total 4 15.0. 250100. 2 2 100.00.0400. 5 0 5 100.a 0.0100. 88.911.1100 Number MAY Per Cent Number JUNE JuLy AUGUST Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Number Per Cent Number Per Cent Certain | Doubtful Total Certain | Doubtful Total Certain Doultful Total Certain Doubtful Total 0 0 0 00. 000.0 2 9 35.0 10.0 45.0 0.0 33.3 333 0.0 0.0.00 5 2 5 25.0 0.0 25.0 210.0. 10.0.0.0 10.0 0 0 00. 0.00.0 0 00 00 0,0 12 8 3 / 4. 16 19.0 6.3. 25,3 _ 4 12 121-6.319.0 4, 7. 4.8. 6.3 11.1 6 7 2 3 9 158 1.9 231 6 13 18.4 15.8 34.2 1 16 0.0. 1.6 3 5,3 2.6. 29. 0.0 .2.6 2.6 0 00 0.0 0.0 33.3. 0.0333 0 0 О. 00 0.0 0.0 0 0.0 0.0 00 0 0 0 0 0 00 00.00 0. 0. 00 0.00.0 0 0.0 0.0. 0.0 0.00 0.000 0 0 00 0.0 0.0 0 0 0.0 0.0 10.0 0 00 00 0.0 0 5 79 00 79 26 00 2.6 0 00 00 00 1 2 16 16 32 00 0.0 0.0 3 150. 00 15.0 0 / 18 2 0 18 28.6 0.0 28.4 0 2 32 00 3.2 2 7 33.3. 0.0 33.3 1 5.00.0,5.0 0 2 2. 53 0.0 53. 2.18.4 0.0 18.4 2 00 5.3 53 2 3/44. 33.3100. 18 2 20/90.0.10.0100. 150. 13 63 144/206.100. 25 13 38 658 34.2.100. SEPTEMBER ОстовЕе NOVEMBER DECEMBER Mimne Per Cent Number Per Cent Number Per Cent Per Cent Certain boubtiull Total Certain Doubttul Total Certain | Doubiful Total Certain| Doubtful Tetal Certain | Doubtful| Total Certain] Doubttul Total Number Certain Doubttull Total Certain Doubtful Total 2 0.0. 8.0 8.0 3 4 300.10.0400 0 00 00 0.0 0. 3 2 412.0 / 00 00 00 4.0 16.0 110.00.0 10.0 3 2 5 20.0.13.3 333 / / 2 33.3 33.3 666 2 4 8.0 80 16.0 0 00 00 00 3 47 13.3 20.0 0 00 0.0 00 0.0 4.0 4.0 0 00 00.00 ...0. 0 00 00,00 4.0 0.0 0 0.0 0.0 4.0 0 0,0 1 10.0 00.10.0 0. 0 0.0. 0.0 0.0 0 0 0 10,0 0000 0.00 00 00 0.0 0,0 00 0,0 0.0 2 1, 19 0.0 0 0 00 00, 00 0 00 2 8.0 8.0 0.00 00 0.0 0. 2.13.3 00 133 4.0 0 0 0.0 0,0 0.0 4.0 0.0 0 9 360 0.0 36.0 4.0,00 4.0 25 1000 00 100 0 100 8 2 00 0000 0 1 67 00 62 3 0 0I 0 00 00 0.0 3 300 00 30.0 0 3 200. 0.0.200 0 0 0 00 00 00 1 00 10.0.10.01 0 1 67 0.0 6.7 1 0 1 33.3 0.0 33.3 2 10 800 200100| / 4 15 26.7 26.7100 2 / 3 (46.7 33.3 100. 179

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Evaluation 0-Balloon 1-Astrosomical 2-Airciaft 3-Light Phenom. 4-Birds S-Clouds, Dust, etc. 6 Insuftic into. 7-Psychological 8- Unknown 90ther Total TABLE AUL7 EVALUATION DE UNIT SIGHLINGS FOR ALL YEARS BY DURATION DE SIGHTING FOR MONTHS DE VEAR , PURATION.. _ NUT STATED LANVARY FEBRUARy MARCH ApRu Number Per Cast Number Per Cent Number Per Cent Number Per Cent Certain Doubtful] Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfui | Total 00. 00.00 0 2 9.1 0.0 91 3 3 6.8 0.0 3. 2.4 4.8 7.2 122 28.0 24.052.0 812 18.2/ 364 544 2 2 80:0.0 8.0 3 4 113.41 4.5 18.1 6 3 14 18.2 13.6 6.8 31.8 2 2 1/21.4 48. 262 9 136 48 1204 00 00 0.0 0.0 10.0 0.0 0 00 10.0 0.0 6 14.3 00.14.3 0 00 00 00 0 0 0 5 0 0 5 00 0.0. 0.0 0.0 0.000 0 0.0 0.0 0.0 2.4 0.0 12.4 0.0.00 00 0.0 0.0 00 0 0.0.0.0 00 0.000 20.0. 0.0 20,0 4.5 0.0 4.5 14 0 14 31.81 0,0 34.8 0 0.0 00.00 120 00.120 3 3 0.0 0.0 00 0.0 0.010.0 0 13.4 0.0 13.6 0 2.3 0.0 23 0.0 68 68 12 / 8 12 0.0 28.6 0.0 28.6 0 2.4 0.0 21 2 3 2 119.0 2.0 190 80, 0.0 80 0 0.0. 0.0 0.0 0 3 3. 000 0.000 19 6 25 160. 24.0 100. 113 9 22 581409.100 32/1244/12/27.3100 38 4 42 90.5 9.5. 100. Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Ctouds, Dust, etc. G-Insuffic. info. -Psycholo rical 8-Unknow g-O ther Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Lipht Phenon 4-Birds 5-Clouts, Dust, etc. 6-Insuffic. Into. 7-Psychological B. Unknown 9 Other Total MAY JUNE Per Cent Per Cent July manner Number Number AuGuST Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain! Doubttull Total Certain | Doubtful Total Certain Doubthil Total Certain Doubthe Total Certain Doubtful Total 3 3 83.00 8.3 6/33 0.013.3 10 2 12. 278-5.6 33.4 7 8.3 11.1 19.4 10.0 28 2 1 5 6.7 5 8.8 44. 11.1 2.2.11.0 0 - 2.8 00 0.0 1 00 2.8 2.8 0.0 0 20 00 0,0 0 00 00 00 0 0 100 0,0 0.0 6 16. 7: 0.0 16.7 12 0.12 26.7 0.0 26.7 27 27 27 3 1 / 38 11 38 12.1 52 17.9 5 8. 5.8 3.5 9.3 2 34 12.1 3.3 16.0 6 8 14 7.0 9.3 1k3 15 42 12.1 19.8 8.1 19.7 3 1.4 10 1711.6 0,0 210.5 0.5 1.4 2 2 2.3 10 0.0 00 2.3 00 0.0 0.5 0.0 0.5 17.9 0.0 17.9 00.00. 00 6 2 38 0. 2 45: 0,0 4.4 2 0.2 14 16.7. 0.016.7 13 013 0 00 00 0.0 0 2 28.9 0.5 0.0 28.9 35 2 4,4 0.0 4.4/ 16 0 35 16 145 0.0 165 75 0.075 0 19 22 2 0.0 0.0 0.0 119 22.1 00. 22.1 0 1.2 00 1.2 22 25.4 00 256 3 23 12 35 28 8136/77.8|22.2100. 42 3 45 93.316.1100 1/76 362/2/83017.0.100. 67 19/86 17.9. 22.1,100 SEPTEMBER ОстовЕе Number Number NOVEMBER DECEMBER Per Cent Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain | Doubtiul Total [ Certain Doubtful Total Certain Doubtful Total Certain | Doubttuld Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total 0 0.0 0.000 3 13 23.2 7.0 2 2.3 0 0.0l 2.3 30.2 4.4 00 0.0 00. 0.0 0.0 2 2 3 0 0 3 5.7 2.9 8.6 8 2.5 12.5.20.0 3.4 6.8 8 5.7. 17. 22,8 I 5 23.4 10.0 21.2 7 20.7 24.1 3 1 6 8.6 17.2 4 8.6 2.2 2.9 2 11175 13 44.8 112.5 5.011.5 10.0 0.0 0.0,0.0 0 0,0 0.0 0 00 0.0 0.0 2 0 3 16.9 3.4 10.3 0.0 0.0 0.0 0.0 00 0.0 0.0 00. 0.000 0.0 0.0 0 0,0 0.0 20.9 0.0 0.0 0.0.20.9 6 17./ 0.0 17./ 0 3 1.5 0.0 1.5 5. 0 0 0 00 00 00 5 17.2 00 11.2 1 23/0.0/2.3 1 29 0.0, 2.9 0 00 00 20 1 134. 0.0 3.4 0 25.6. 0.0 25.6 8 0 8 22.9. 00 229 14.0. 2.3 13 0 2 51 00 57 9. 2 4 22.5. 0.0 225 2 0 2 69 0.0 6.9 2 5.0, 0.0 5.0 3 0 3 10.3 00 103 38 5/43/88411.6100. 24 11 35 68 4 31.4100. 27 13 40 675 32.5100.120 9 29 69.031.0 100. 180

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Evaluation 0-Balloon 1-Astronomical -2-Aircraft 3 Light Phenom, 4-Birds 5-Clouds, Dust, etc. 6 Insullic into. 7-Psychological 8. Unknown 9-0ther Total TABLE A18 EKALUATION OF OBJECT SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHIING EDR MONTHS 05 FIVE SECONDS LESS JANUARY FEBRUARY MARCH APRIL Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubttul) Total Certain Doubtlul Total" Certain Doubtful| Total Certain Doubtal| Total" Certain Doubtful Total Certain Doubtful| Total Certsin Doubtful Total Certain Doubtful Total 0 0 00 00 00 000 0.0 0,0 00. 0000 2100 0000 9 14.3 64.378.6 0.0 0 2 4.1 0 0 0 00 00 00 00 00 00 00 00 5 0 0 0 8 333 55.6 88.9 2 5 2 22.255.6 778 0,0 0,0 10,0 5 / 5 45.50.0 45,5 9.10.0 00 9.1 0.0 0 0.0 00 0,0 0 0 000. 0.000 0 00 100 00. 0.000 00. 00.00 0.0 0.0 0 0.0 0 0. 100 0 0 00 0.0 0.0 00 0.0 9.1 0 00 0.0 0.0 0.0 / 1/10,0 1114 4.1 0.0 9.1 0.0 0.0 00.00 00 00 0.0 9.1 ZL 0.0 7.1 0.0 1.1 0 0 0 0.0 00 00 00 00.00 00 00.00 0 0.0 00 00 1./L 00/1.1 2 0.0 7.1 0.0.11.1 0 2 18.2 00 00 00 0 0.0 0.0 18.2 0.00.0 41 14 128.6 71. 4.100. 4 5 9. 444/55.6100 4 5 9 44.4|55.4000. 10 11. 190.99.1. 100. Evaluation 0- Balloon 1-Astronomical 2- Aircraft 3-Light Phenom. 4 Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological 8-Unknown f9-Other Total Evaluation d-Balloon 1-Astronomical 2-Aircraft 3-Light Phenoes, 4- Birds 5-Clouds, Dust, etc. G Insuffic. info. 7-Psychological 8 Unknown 9-0 ther Total МАУ Number Per Cent Certain Doubtful Total Certain Doubtful Number JUNE Per Cent Number Per Cent Number AUGUST Per Cent Total Certain Doubtful Total Certain] Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Desbtful Total 0 5 4 0. 0.0 0.00.0 40.00. 4.0 2 3 14 28.4.2 2 7 294 11.8 41.2 5 23.51. 5.9 29.4 10 3 7.17.40.0 28.0 68.0 0 3 12.0 00 120 22 2 15 37 310 211 52.1 2161 9.912.122.6 0 13 3 3 3 00 50 50 20 33 21.7 33.3 55.0 00 0 1400 1.4 9 50 10.015.0 20.0 0.00.0 0000 10.0 1.71.2 0 0 0 0,0 00.00 0.0 0.0 2 3 1.4 2.8l 0 0 00 00 0.0 0.0.0 00 0.0 / 5.9 0.0 59 00.0 0.00.0 0 3 0 0 00 4.2 00 00 00 L 1 0.0 14/ 14 0 00 00 00 3.12.0. 0.0 12.0 2 0 0.0 2 12.8 0.028 0.0 0.0 0 0.00 0000 0 2 4.8 0.0 11.8 0 00 0.0 00 2 168 0.0 111.8 0 4.0 00 40 6 2 6 8.5 0.0 8.5 2 28 00 2.8 4 / 6 2 4 6.1 00 6.7 11.7.0.0 1.2 6 10.0 00 10.0 3 33 12 50 14 3 1 824.17.4.100. 18 1 25 72.0.28.0100. 42/29 71 592408 100. 29 31 60 483 517100. SEPTEMBER ОстовЕк NOVEMBER Number Per Cent Number Per Cent Number Per Cent DECEMBER Per Cent Certain Doubtiul Total Certain Doubtful Total Number Certain Doubtful Total Certain) Doubtful| Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtfal Total 00. 000.0 0 00 0.0 0.0 0 0 00 00 0.0 0 0.0.0 0.000 5 3 / 13 333.20.8159.1 4 4.2 12.516.7 0 2 4 33.3 0.0 33.3 4 8 26.1 24.7,53.4 8 17 41.442.189.5 3 8.3.160.7 25.0 2 3 13.3_ 6.7 20.0 000 000.0 100 4.2 4.2 00 0.0 0.0 1 67 00 67 0 0.0 000.0 2 42l 4.2 8.4 D 00 0.0 0.0 0 00 0.0 00 0 00 0.0 0.0 0100 0.00.0 0.0 00 10.0 0 0 00 0.00.0 14.2 0 00 4.2 2 16.1 0.0 16.7 0 00- 00 00 0 0 00 00 0.0 0 00 0.0 0.0 0. 0 0 00. 0.0 00. 0 0 00 0.0 0.0 3 12.5 00 125 2 0 2 167 0.0 16.7 1 1 00 83 8.3 е 2 0. 0 00 00.00 0 0 0 00 00 00 01 6700 67 0 14. 10/24 58.3.41.7 100.19 3 12 75.025.0 100.110 5/15/647 3331001 11 8 119/57.9.42.1100. 181'

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Evaluation 0-Ballcon 1-Astronomical 2-Aircraft 3 Light Phenoma, 4-Birds S-Clouds, Dust, etc. 6 Insuftic. into. 7-Psychological 8-Unknow 9 Other Total TABLE EVALUATION DE OBJECT SIGHTINGS EOR ALL YEARS BY DURATION DE SIGHTING FOR JANUARY MOUTHS FEBRUARY _ SEAR, 5/X TO TEN SECONOS Number Per Cent Number MARCH APRIL Per Cent Number Per Cent Tinien Per Cent Certain | Doubttul! Total Certain | Doubtful Total Certain | Doubiful Total Ceriain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtil Total Certain Doubtful Total 00.0 00 00 0100 00 0.0 0.0 0.0 0.0 0 1 00 25.0250 / 1000 0.0.11000 0 35.0 0.0 25.0 0.0 0.0 0.0 25.0 00 25.0 1 0.0 25.0 250 0 00 00 00 0 0 0 00 0.0 0.0 0 0 00 00 00 2 12.5 12.5 25.0 00 0.0 0.0 0 0.0 00 0.0 0 0.0 0.0 0.0 0 / 0 000 00.00 0.0 0.0 0.0 0.0 0 000 0.00.0 0 00 0.0 0.0 0.0 0.0 0.0 00 0.0 0.0 0.0 25.0 0.0 0,0 0.0 0.0 0 0.0 12.5 0.0 0.0 a0 25.0 0.0 0.0 0.0 0.0 20.0.0 12.5 0 25.0 0.0 25.0 0.0 0.000 2 2 4 5001500 100. 0 0 0 0.0 0.0 0.0 0.0 0.0 0 3 0.0 0.0 00 0.0 0.0 10.0 0.0 00 0.0 1000. 00/00. 3 0 4 0 0 750 0.0 250 3 3 0.0 0.0 0.0 00 37.5 0.0 37.5 a 0.0 0.0 4 10000.0. 100 8 875/25 100. Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. info. 7-Psychological &- Unknown 9-0 ther Total Evaluation 0-Balloon J-Astronomical 2-Aiscraft 3-Light Phenom. 4 Birds 5-Ctouds, Dust, etc. 6-Insuffic. Into. 7-Psychological 8. Linknown 9-Other Total Number MAY Per Cent Number JUNE Per Cent Number Jucy Per Cent Number AUGUST Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doublful Total Certain Doubtful Total Certain Doubtful, Total Certain Doubtful Total Certain Doubtful Total 0 / 12.5 0.0/25 / 5.9 0.0 5.9 0 00 0.0.00 3 300 11.5 11.5 2 2 250. 0.025.0 2/2.5 12.5 250 0. / 0.0 12.512.5 3 3 0 6 917.6 35.3 52.9 317.6 00 9 5 2 15 33.3 22.235.5 2/3.5 24 25.2 / 0.0. 5.2 5.9 00 00 0 0.0 00 0.0 0 0 0.0 0.0 0,0 0 0.0 0.0 0.0 3 0 3 115 11. 5 23.0 10 30.8 3.8 2.7 38,5 0.0 3.8 00 00 0.0 0 0 00 00 0.0 0 0.0 0.0 0.0 00 00 0.0 0.0 2. 25.0 0.0 25.0 2 00 0 11.8 0. 11.8 00 00 37 3.7 00 3.8 0.0 3.8 0 a0 00. 0 0.0 0.0 40 0 0 00 00 0.0 5.2 0.0 5.9 3 0 3 00 00 0.0 0 00 0.0 0.0 11.1 00 11.! 0. 00 00 0 6 2 8.25.0 25.0100 0.0 0 00 0.0 0.0 3.7 0.0 3.7 10 17 58.8 41.2 100. 19 8 27 70.4 29.6 100. 4 18 4 15.4 0.0.15.4 / 38 0,0 3.8 8 2669.230.8100. SEPTEMBER OCTOBER NOVEMBER DECEMBER Number Per Cent Number Per Cent "Certain Doubtful Total Certain Doubtfal Total Certain Doubtful Total Certain Doubtful Total Number Per Cent Ninte Per Cent Certain Doubttul Total Certain Dosbtful Total Certain Doubtful Total Certain Doubtful Total / 0,0 11.1 0 000 0.0 00 00 0.00.0 0.0 0.0 2 0 2 22.2 0.0 22.2 3 20.0 40.0 60.0 2 61.2.0.0 2 2 06.7 100.0.100.0 0.0 22.2 22.2 2 0 10.0 0,0 00 00 0.0 0.0 0.0 00 0.0 0.0 0 0.00 00 0.0 0.0 1/./ 000 0.0 0.0 0 00 00:00 0 0 00 00 00 3 0 3 33.3 0.0 333 0 00 00 00 0 0 0 2 0 0 0 0.0 0.0 0,0 0.0 00 00 0.0 0.0.0.0 0.0 0.0 0. 0 00 0.0 00 00 0.0 0.0 0 0.0 0.0 0.0 0 00 0.0 0.0 00 0.0. a0 0 0.0 0.0 0.0 0.000 0.0 0.0 0.0 0.0 0 00 0.0 00 0 00 00 00 0 2400. 0.0400 / 0. 1 33.3. 0.0 33.3 0. 0 0 00 00.00. 0 0 0 00 00 00 0 0 0 0 00 00 00 00 00 00 0 00 00 00 141 9 55.644.41100.13 2 5 600 400 100. 3 0 3 1000: 0.0100. 0 10.01000 100. 182

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Evaluation 0-Balloon [1-Astronomical 2-Aircraft 3-Light Phenom 4-Birds 5-Clouds, Dust, etc. G Insuffic into 7-Psychologicat 8 Unknown 9-Other Total Evaluation 0-Balloon 1-Astrunomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuffic. Info. 7-Psychological 8 Unknown 9-0ther Total Evaluation 0-Ballcon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic, Into. 1-Psychological 8-Unknown 90ther Total TABLE A120 EVALUATION DE OBJECT SIGHTINS FOR ALL YEARS BY DURATION OF SIGHTING MONTHS DE YEAR ELEVEN TO THIRTY SECONOS JANUARY FEBRUARY Number Per Cent Number Per Cent Number MARCH APRIL Per Cent Number Per Cent Cerisin | Doubtful Total Certain Doubitull Total Certain | Doubtful | Total Certain Doubtful Total Certain Doubiful| Total Certain | Doubttul Total Certain Doubtful Total Certain Doubtful | Total 0 00, 0.000 0 00 00 100 100 10.010.0 50.0 0.0 .50.0 0 00 00 0.0 2 / / 0. 00 00, 00 318.2 91 27.3 0 0 0 0.0 00 00 0.0 0.0.00 00 0.000 00 0.0. 00 33.3 0.0.33.3 00. 0.000 0.0 0.00.0 0.00.000 50.0 0.0. 50.0 0. 1 10.0. 0.0.100 0 00 00 0.0 0 0 10.0 0 2 3 9.118.2 27,3 0.0 00. 00 00. 00 0.0 00 0.0 00 00 0.0 0 0 0.0 0.0 00 0.0 00 0,0 0 0 00 00 00 0 00 00 00 0 0. 00. 00.00 00 00 00 0 2 200. 0.0 20.0 0 0 2 000000 9.100. 91 9.1. 00 91 00 00 00 00 00 00 0. 00.00 00 2 18.2 0.0 18.2 0 00. 0.0.00 5 k 10.050.0.600 1 91 0.0 9.1 3 0 3 1000. 0.0100. 2 0 2. 1000 0.0 100. 4 6 10 40.060.0100.| 1/ 72.727.3\100. JUNE Number Per Cent Number Per Cent Number JuLy Per Cent Mumber Certain Doubtfull Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful | Total 0 8.3 0.0 0.0 8.3 0 3 6 4.8 4.8 2 8.3 8.3 1 59 00 15.9 3 19.6 2 3. 5.9 11.8 17.7 / 1. 9:7 1k 11.3 8. lo lok. 1 29.4 11.8 41.2 14 15 00.0 0.0 00 2 0.0 0.0 29 22.6 24.2 46.8 0 0.0 0 00 00.00 100 8.3 8.3 0 00 00 00 0 00 00 00 0.0 0 0 6 0 0 100 30 3.0 1 ho 11 18.215.133.3 9 18.2 9.1. 27.3 1 0.0 30. 3.0 0.00 0.000 000.0 0. 0.0 0.0. 0.0 00 00 00 00.0 0.00.0 0 33.3 0.0 33.3 3 3/76 00 17.6 2 32 00 3.2 00,0 5 4.8 2 6/ 00 6.1 0 00 00 0.0 00 00 3.2. 8.0 0 00 00 00 2. 16.7 0.0 14.2 0.01 8.3 0 3 17.6 00 11.4 8.31 12194 0.0.19.4 9.27.3 00 273 0 00 00 0.0 1 16.00.16 0 00. 00. 00 10 2 12 183.3 16.7 100. 13 4: 17/76.5.23.5100.141 21 62 66.133.9100 23 10 13369.7/30.3/100. SEPTEMBER NOVEMBER DECEMBER Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain | Doubttull Total Certain] Doubtful Total Certain] Doubtful| Total Certain Doubthul Total Certain | Doubtful Total Certain Doubtful Total Certain] Doubtful Total Certain Doubthul | Total 2 20 14.3 14.3 0. 0 00. 0.0 00 0 00% 0 2 1. 2 0 00000. 00 0 0 2 2 00 22.2 22.2 00 71 7.1 / З 22.2 11.1 33.3 2500 0.0 50.0 1 11.100 11.1 3 2. 28.6.21.4.500 3 11./ 22.2 33.3 0 00 00 00 0 00 00 00 0 0 2 0 0 00 00 0.0 000. 00 0.0 100 7.1 1.1 0 0 0 2500. 00 500 0 3 3 00 /333.333 0 00. 00 0.0 0 0 000 00.0,0 0 / 00 00 00 0 0 00.00,00 1 00 11.1111 00 0.0 00 0 00 00 0.0 2143 00.14.3 0 0 1 11.1 00. 11.1 00 00 00 0 00 0.0 0.0 1 71 00 1.1 0 0 00 00.00 0 00 00 00 0 2. 00.00.00 0 00 00 00 0 1 11.1 00 11.1 0 00. 00. 00 2 222. 0.0 22.2 0. 0 000. 00.00 0 0 00 00 00 2 0 00 20 00 1 11.100 11.1 1 14 50.0 50.0100. 5 4 | 9. 55644.4 100. 4 0 4 1000 00 100. 4| 5 / 9 44.4 55.4.100. 183

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Evaluation 0- Balloon 1-Astronomical 2-Aircraft 3- Light Phenom 4-Birds 5-Clouds, Dust, etc. G Insutlic into. 7-Psychplogical 8-Undnown S-Other Total Evaluation o-Balloon 1-Astronomica! 2-Aircraft 3-Light Phenom. 5-Clouds, Dust, etc. 6-Insuffic, info. 7-Psychological 8-Unknawn 3-0ther Total Evaluation 0-Balloon 1-Astronomica! 2-Aircraft 3-Light Phenom, + Birds 5-Clouds, Dust, etc. 6 Insuffic. info. 7-Psychological &- Unknown 90ther Total TABLE ALI EVALUATION DE ORJECT SIGHTINGS FOR ALL YEARS BY DURATION DE SIGHTING EOR MONTHS. YEAR THIRTY ONE TO. S/XT4 SECONOS JANUARY FEBRUARY MARCH Number Per Cent Number Per Cent Humber Per Cent APRIL Per Cent Certain | Doubthul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total Number Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0.01 00. 00 0.0 00 0.0 0 114.3 0.0 14.3 0.0 8.3 8.3 2000000 00000000 00 0.000 0.0 0.0 0.0 0.0 00 0.0 0.0 0.0 0.0 00 0.0 0.0 0.0 0.0 00 0 00 00 00 0 00 00 00 2. 0 00 00 00 0 00 00.00 2 0 0 3 0 20.0 40.0 600 0.0 00 0.0 00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0 0.00.0 1 1000. 0.01000 00 20.0 0.0 20.0 0000000 4.3 0.0 14.3 0.0 8.3: 8.3 0.0 42.9 0.0 0.0 0.0 0.0 00 0.0 42.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.0 0.0 00 0.0 0.0 00 00 14.3 0.0/4.3 0 00 00 0.0 20.01 0.0 20.0 0.0 14.3 14.3 OMON 167 0.016.7 000 0.0 0.0. 0.0 8 30.7 0.0 1666.7 0 0 1110001 0.0 100. / 3 0.0 0.00.0 2/ 5 600 40.0100. 6 7 /85.114.3 100. 10 2 12 833 16.7100. MAY - JUNE Number Per Cent Number JUEY Per Cent Number Per Cent Number AUGUST Per Cent Certain Doubtful Total Certain Doubtful Total Certain| Doubtful Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0.0 0.0 00 0 0 0 0.0 0.0 00 5 2 7 4.4155 5 3.1 112.51/5.4 2 2 0 0 0 2 33.3 0.0 333 0.0 0. 22 0.0 2.2 3 6 9.4 9.4 128 33.3 0.0 33.3 3 2 2.5 12 10 22 26:722.2 48.9 3 2 5 9.4 6.3 15.7 0.0 0.0 0.0 0.0 2.2 2.2 0.0 3. L 0 0 0.0 0.0. 0.0 3.1 0.0 0.0 0.0 2.2 0.0 2.2 0.0 0.0 0.0 0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 00 0.0 0.0 0.0 2 133.3 0.0 33.3 2 0.0 0.00.0 100.00.0 100. 5 00 / 3 2 0,0 0.0 0.0 0,0 0.0 125.0 0.0 25.0 0.0 12.5125 8 62.537.5 100. 66.7 0.0 0.0 6.2 0.0 0.0 4 10 10 222 0.0 22.2 0.0 0.0 0.0 0 4 2 9 0 12.5 0.0 12.5 6.3 0.0 28.1 63 0.0 28.1 0.0 0.00.0 32 13 45/711 28.9100. 22 10 / 32/8.731.3100. SEPTEMBER OCTOBER Number NOVEMBER DECEMBER Per Cent Certain Doubtiul Total Certain Doubttal Total Number Pa Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total 0.0 12 1.7 20.0 0.0 20.0 0 0.0 0.0 2 8.3 8.316.6 2 15.4 11 23.1 0.0 0.0 0.0 2 2 0.0 500 500 8.3 8.3 1146 23.1 77 30.8 20.0 0.0 20.0 25.0 0.0 25.0 0.0 0.0.0.0 0 0.0 0.0 0.0 0.0 00 0,0 3 425.0 8.3 33.3 0.0 0.0 0.0 0.0 27 0 0.0 1.7 0.0 0.2 0 0/0 00 0.0 0. 0.0 0.00.0 a0 0.0 00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 25.0 0.0 250 3 0. 0 7.7 7.1 0.0 0.0 10.0 0.0 0.0 0 0. 0 00 0.0 00 3 23./ 0.0 23.1 3 0 3 60.0 0.0 600 0.0 00 0.0 0.0 0.0 0.01 0 0 000 a0 0.0 91 4 13 /69.230.8.100|5 5 1000 0.0 100. 0 0 2 2 4. 50.0 50.0100.| 9 0 0.0 0.0 0.0 0 0 00 00 0.0 167 0.0.16.7 • 0.0 0.0 0.0 2 2167, 0.0 1k7 3 12 750 25.0100. 184

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Evaluation 8- Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. G insuffic. into. 7-Psychological B- Unknown 3 Other Total Evaluation O-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. info. 7-Psychological 8-Unknown 19-0ther Total Evaluation 0-Baltoon 1-Astronomical 2-Aircraft 3-Light Phenom. 4Birds 5-Clouds, Dust, etc. 6 Insuffic. into. 7-Psychological 8- Unknown 9 Other Total TABLE A122 EVALUATION DE DEJECT SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING. FOR MONTHS OF ЧЕЛЕ, SIXTY ONE SECONAS TO FIVE MINUTES LANUARY FEBRUARY MARCH APRIL Number Per Cent Number Per Cent Ceriain (Doubtul Total Certain Doubttull Total Certain Doubtful Total Certain Doubtul Total Number Per Cent Number Per Cent Certain Doubtful | Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtfzi Total 2.10.010.0.200 2 1100. 00100 1/1/0.0 0.011.1 2 200 0.0 200 / 1 0.010.010.0 3 20.0 100 30.0 1100 0.0.100 2 0 2 000. 0.000 4 22.2 22.2 44.4 00 0000 0 00 0.000 0 00 0000 0 0.0 00 0.0 / 10.0. 0.010.0 0 00 0000 1 10.0 0.010.0 0. 0 2 0 2 9 0 0.0 00. 0.0 0 00 00 00 0 00 00 00 0 0,0 0.0 00 0 00 0.000 / 1 00 11.111.1 2 20.0 0.0 200 0 00 0.000 3 300 00 30.0 0 2 0 0 00 0.00.0 0 0 00 0.000 0 2 22.2 0.0 22.2 2 7 0 401 / 9 2 27 00 77 110.00.0100 2 20.0 0.0 20.0 / 10011.1 11.1 0000000 NO 00.0 0.000 9 26.9 77. 34.6 0 0.0 00 0.0 1 38 0.03.8 0 00 0000 3 11.5. 0.011.5 13.8 0.03.8 9 34.6. 0.0 34.6 138 00 3.8 8. : 10 800200 100 1/10.90.010.0100. 5 4 9 55L44.4100. 24 • 26 923 1.1 100. MAY JUNE Mumber JULY Per Cent Certain Doubttull Total Certain Doubtfull Total Number Per Cent Number Per Cent Number AUGUST Per Cent Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total / 7 E 25.0 4.2 29.2 0.0 4.2 4.2 3 $ 12,5 20.8 33.3 0 0.0 0.002 00 0,00 02,00 0 10.0 00 0.0 4.2 0.04.2 6 0/0 0 00 000.0 25.0 0.025.0 4.2. 0.0 4.2 6 / 0 0 0 7 2 1 21.4 3.4 250 10. 2214.9 8.8 23.7 10 12 22 15418.7.34.3 2 4 0 3 3.6 10.7 2 0.0 1.8 / 14.3 14.3 28.6 2 3.2 0 0.0 0,0 00 18 5 2 1.8 1.6 1.6 12 30 15.8 10.5 26.3 44 15.3 10 4 14.15.6 1.2 2/.8 0 2 2 0.0 3.1 0.0 0.0 0.0 0.0 0 0 0.9 0.00.0 3.1 0 0.0 0 0 0.0 0.0. 0.0 00 0 0 0.0 0.000 0 0. 0.0 00.00 00 0.0 0.0 12 0 12 10.,5 0.010.5 3 4.7 0.0 4.7 0.0 0.0 00 2 3 5 1.8 2.6 44 3 2 3 3. 1 1.6 4.2 25.0 .0.0 25.0 24 0 29 25.4 0.0 125.4 16 16 25.0.0.0 25.0 0 3 10.7 0,0 10.2 3 0 3. 26.0.0 2.4 2 0 2 3.10.0. 3.1 4 1 24 1108. 29.2100. 2/ 1 28/75.025.0100. 86 28/14 75.4 24.6100.| 44/ 20/64148.8|31.2100. SEPTEMBER ОстовЕк. NOVEMBER DECEMBER Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful' Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 3 / 0 5 8.6 14.3 229 6 8.7 17.4 26 2 0 2 250 00 250 2 2.9 2.9 15.8 2 00 8.78.7 0 / 112.5 0.012.5 2 0 11.8 5.9.17.7 12 13 29.34.3. 37.1 3 2 3 00 5.9 5.9 6 13.0.13.0.260 0 0,0 0.00.0 5 5.9.23.529.4 0 0. 0.0 0.00.0 0 0.0 0 0 0.00.00.0 0 0.0 0.0 0.0 1 12,5 0.012.5 0.0. 0.00.0 0.0 0 0.0 0.000 0.0 0.0.0.0 / 0 0.0 0.000 2.9 00 2.9 0 00 0.000 11 314 0.031.4 0 0 00 00 0.0 0 NNO 0.0 2 2 0.0 25.0 250 0 0.0,0.0 4.3 0.00.0 0.0 0.0 4.3 0 0.0 00 00 11.8 0.011.8 0 0 00 00 0.0 0 1 3040.0 304 0 2 0 0 00 00 00 2 0 00 00 00 0 2 250 0.0 25.0 0 6 353 00|353 0 / 4.3 004.3 0 0 0.00.000 0. 0 00 00,00 17.18/35 48.6,51.4 100.114. 9 /23 60.939. 1100. 2 8 75.025.0100. 11 6: 17/64.735.31100. 185

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Evaluation 0-Balloon ¡l-Astronomical 2-Aircraft 3-Lipht Phenon. 4-Birds S-Clouds, Dust, etc. G- Insuffic into. 7-Psychological &. Unknown Other Total Evaluation Đ-Ballooa 1-Astronomical (2-Aircraft 3-Light Phenom 4-Birds 5-Clouds, Dust, etc. G Insuffic. Into. 7-Psychological 8. Unknown 9-0 ther Total Evaluation U-Balloon 1-Astionomical 2- Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuffic. Into. 7-Psychological 8-Union0wn -Other Total TABLE - B 129 EVRLURIION OF OBJECT _SIGHTINGS FOR ALL YEARS BY DURATION DE SIGHTING FOR MONTHS. YEAR, S/K TO THIRTY JANUARY FEBRUARY - MINUTES Number Per Cent Number Per Cent MARCH APRIL Certain | Doubtful Total Certain Doubfful Total Certain Doubtful Total Certain Doubtful Total Number Per Cent Number Per Cent Certain Doubtful | Total Certain | Doubtful Total Certain Doubfful Total Certain Doubtful Total 7.7 1.1154 2 2 250 0.0 25.0 3 23./ 0.0 23.1 12.5 0.012.5 3 15.4. 7.2 23.1. 2 2 0.0 25.0.250 L L / 2 10.0 10.0 20.0 0 10.00.010.0 2 100. 20.0 30.0 0 00 0.00.0 15.4 3 0.00.000 0 00 0.000 0 0.0 0.00.0 01 0.0 0.0.0.0 0 0 0.0 0.000 0 0.0 0,0 0.0 000 0000 0 0.0 0.0 0.0 0 0 0.0 00 0.0 00 000.0 7.7 0.0. 1.7 3 23.1 0.0 23.1 17 0.0 1.7 3 0 0 0 0 0,0.0 0000 0,0 0,0 0.0 00.0 00.00 000 00 0.0 1375 0.0 375 2 13 84615.4 100. 6 2 8 750 25.0100. 3 0 6 4 0 0 0 0 $ 10 60.040.0100 13 2 0015.4 30.8 00 308 0,0 000.0 0.0 0.0 00 0.0 00. 00 0.0 00 2.7 0.0. 2.2 0 0.0 00 000.0 30.0 0.0:30.0 6 422 00 4a2 00.10.0100 0 0.0 00 0.0 113 1000. 00 100 Number MAX Per Cent Number JUNE Per Cent JuLy Number Per Cent Number AUGUST Per Cent Certain Doubtful Total Certain Doubtful Totas Certain Doubtful Total Certain Doubtfull Total Certain | Doubtful Total Certain Doubtful Totai Certain Doubttul Total Certair ] Doubttul Total 2 / 2. 26.9 17 346 3 177 3811.5 4. 11.5. 3.8 15.3 1 2 4 2 9. 20.6 5.9 265 21 11. 32.196 10.3 29.9 1/ 10: 27 21.3.12.5 33.8 0 2 5.9 00 5.9 5 4 9 4.7 37 18.4 8 2: 10 10.0 2.5.12.5 7 11.7 8.8 20.5 15 8. 23 14.0 7.5. 21.5 1016 7.5 12.5 20.0 3 115.00 11.5 / 2.9 0.0 .2.9 5 28 1.9 4.7 3 3.8.0.0 3.8 e 2. 0 00 00 00 1 3.8 0.0 3.8 0 2 7.2 00 0 0 0 00 00 00 0 00.00.00 0 0.0 0.00.0 0 00 0.000 0 0 2.7 00 00 00 0.0 _ 1.3.1.3 2 5.9 00 5.9 115 14.0.0.0 /4.0 25 0.0 7.5 0 0.0 00 00 4 8.8 0.0 8.8 1 0.9 0.0 0.2 2 0.0 2.5 3.8 0.0 3.8 3 3.8 7.711.5 9 0 2.5 0. 9 26.5.0.0.26.5 0 17.15.9 0.0.159 10 10 12.5. 0.0 12.5 0 0 00 00 00 4 1 5 37. 0.9 4.6 5 5.0. 1.3 6.3 20 6 26/76.9 23.1100.| 29 5 34 85.314.7 100. 81. 26101 151 243 100. 56 24 80 700.30.0 100 SEPTEMBER Hummer Per Cent Number Per Cent NOVEMBER DECEMBER Certain Doubtful Total Certain| Doubtful Tolal Certain Doubtful Total Certain Doubtful Total Number Per Cent Number Per Cent Certain | Doubtful Total Certain -Doubtful Total Certain Doubtful Total Certain Doubttul| Total + 136.4.5 .4.518.1 0 6.00 33.3 33.3 0 2 2 0.0 9.1 14.1 2 3 56 11.116.7 2 2 5 9.5 14.3 23.8 3 5 9.5 14.323.8 3 2 4 3 8.3 4. 2.12.5 5 4.5 18.2 22.1 2 5.6 5.411.2 0.0.14.3.14.3 2 4.5 4.590 2 5.6 5.6.11.2 2 • 4.8 4.8 4.6 / 2 0 5. 16.7 4.2 20.9 3 4.2 4.2 8.3. .12.5 D.0 4.2 0 00 00 00 0.0 5.6. 5.6 000,00 00 0 0.0 00 0.0 0 2 0 00 0.0 100 0 0 00 00.00 00 00 0 00 0.0 00 0/00 00 9100 .9.1 0 1 5.6 0.0, 5.6 4.8 0.0 4.8 2 8.3 00 8.3 0 00 00 00 0 0 0 00 00 00. 0 000. 00.00 4.2. 00.4. 6.27.3 0.0 27.3 0 3 16.7 00 16.7 5 0 5 23.8 0.0 23.8 8 0 : 33.3 0.0.33. 1 45 00 4.5 0 0 00 00.00 0 0 00 00 00 1 1 4.2 0.0 4.2 14/ 8 22 /636364100.17 1/ 18 (38.9 61.1100 11 10 21 524476 100. 20 4 24 16.7 16.7100 186

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Evaluation 0- Balloon 1-Astrononi cal 2-Aircraft 3- Light Phenom. 1- Birds 5-Clouds, Dust, etc. 6 Insultic info. 7-Psychological 8-Unknown 19 Other Total 0-Balloon 1-Astronoaical 2-Aircraft 3-Light Phenom, 4-Birds 5-Clouds, Dust, etc. 6 insuffic. Info. 7-Psychological 8-Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc 6 Insuffic. tnto. -Psychological 8. Unknown SOther Total TABLE A124 EVALUATION OF OBJECT SIGHTINES FOR ALL YEARS BY DURATION. DE SIGHTING EOL MONTHS YEAR, OrEC THIRTY MINUTES LANUARY FEBRUARY MARCH Number Per Cent Number Per Cent Number APRIL Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubthl Total Certain Doubttul Tota: Certain | Doubtful Total Certain Doubtful Total Certain Doubtful | Total 33.3 0.0. 33.3 1 50.0. 0.0 500 2 2 50.0 00 50.0 3 0 0 0 1 250 00 25.0 00.0.0.00 0. 00 00.0.0 0 00..00 00 2 3. 333. 0.0 33.3 0.0.33.3333 1 50.00.050.0 2 22.2. 0.0 22.2 / 0.0 /1./ 11./ 00.00 00 0 0 00 00 0.0 0 0 00. 00.00 0 0.0. 0.0 0.00.0 0 0 00 0.00.0 0 00 0 00 00. 00 00.00 0 0 0 0.0 00 0.0 0.0. 0.0 0.0 0.0 0 0 0.0 0 00 00 0.0 0,0 0.0 00 0.0 00 e 0.0 0.000 0 0 00 0.000 0 0 00. 0.0.00 0 00. 0.0 0.0 0. 0.0 0.00.0 0.0 0.000 0 00 0.0 0.0 / 25.0 0.0 25.0 333 00 333 0 2 0 0.0 00 0.0 / 2 0 11./ 00 11.1 0.0. 0.0 00 2 22.2 0.0 22.2 0 0 00 0.0 0.0 2 1 3 66.733.3100. 0 2 1000. 0.0.100. 0 4 0 0.0 0.0 0.0 0 4/ 10000.0 100 8 / 9 88.9 11.1100 MAY JUNE Number Per Cent Number Per Cent Note uk Per cont Certain Doubtful Total Certain Doubtfull Total Certain Doubtfui Total Certain Doubttul Total Certain Doubtlul Total Certain Doubtful Total Number AUGUST Per Cont Certain Doubtfull Total Certain Doubtful Total 0. 0 0.00.0 0.0 2 8 37.5 12.5 50.0 4 11 14.0 8.0 22.0 3 0 0.0 0.0 9 16.2 8.124.3 0 0 0.0 0 4 25.0 0.025.0 4 00 0.012.5 10.12.0 8.0 20.0 0.0 0.0 112.5 - 4.0 00 0.0 0 0.0 4 8.0.120 2 0.0. 0.0. 0.0 0.0 / 2.0 0.0. 2.0 0.0.00 0.0 7 2 0 13. 18.9 16•2 35.1 3 5.4. 2.1 8.1 20 21 27 0.0 00 0.0 0 00 00 00 00.00 0 00 50.0.0.0500 0.0 0.0 00 0.0 0.0. 0.0 0.0 0 0.0 0 00 00 00 0.0 0.0 0 0.0 0.0 0.0 4 80 00 8.0 0.0 0.0. 0.0 1 20 20 4.0 0.0 0.0 / 2 0.0 50.0 1 6.3 16.3 2 0 14 28.0 0.0 28.0 0.0 500 1 6:3 0.0 6.3 0. 2 40.00 4.0 0 NOO 0.0 0.0.0.0 2.7 0.0 2.7 2 5.4 0.0 5.4 6. 16.2 0.0 16.2 2 0.0 5.4.5.4 2 0 11000 0.0100. 14 2 / 16 875 12.5100. 37|13 50 74.0 26.0100. 24 13/37 (64.9| 35.1.100. SEPTEMBER OCTOBER Number Per Cent Number Per Cent NOVEMBER DECEMBER Number Per Cent Number Per Cent Certain Doubtful| Total Certain Doubtful| Total Certain | Doubtful Total Certain Doubthul Total Certain Doubttull Total Certain Doubtfull Total Certain Doubttuf Total Certain Doubtful Total 2 00 87 8.1 3 4. 30.0 10.0 40.0 0 0 00.00 00 0 00 0.0. / 10.0 00 10.0 / 0.0 2 33.3 33.364.6 2 2. 0 4 13.0,4.3 11.3 2 5 23.115.4 38.5 $ 8.1 8.7 17.4 0 0. 0,0 0.0.0.0 1.27 00 7.7 00 0.0 00 10.0 4.3.43 0 00 0.000 0 00 0.000 0 14.3.00. 4.3.00.4.3 10.0 0.010.0 0. 0 00.000.0 0 0.0 0.0. 0.0 0.0 0.00.0 2 0 00 0.00.0 00.0 0.0 0.0 0. 0.00. 00.0.0 0.0 000.0 2. 8.7 00 8.7 2 15.4 00.15.41 0.0 0.0 0.0 1 43 0.043 0.0 0.0 0.0 0 0 00 00 00 17.1 0.0.7.1 0 7 30.4 00 304 3 0 3 30.00.0 30.0 0 3 23.1 0.0.23.1 0 0 0 2 00 00 0.0 20 0.0 0.0 14.3 0.0 4.3 1 00 10.010.0 1 77 00 7.1 333 0,0 33.3 17 6. 23/73.9 261100 8 2/10/80.020.0. 100 | 1 2 / 1384.6.15.4100. 21 1 3/607 33.3 V00. 187

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O-Balloon 1- Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuffic ito. T-Psychological B. Unknown 9Other Total TABLE A125 EVALUATION DE OBJECT SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING EDR MONTHS YEAR , DURATION NOT STATER JANUARY FEBRUARY MARCH APRIL Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain | Doubtful Total Certain | Doubtful Total Certain Doubsful Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtivl Total Certain | Doubtful Total Certain | Doubtfut | Total 0 0 0.0. 0.00.0 2 2 11.1 0.0.11.1 3 9.6 0.0 8.6 2 2.1 2.1 5.4 11 27.3.22.7.500 0 6. 10 22.2 33.3 55.5 3 0 5 6 2 0 5 12.20.014.3 34.3 0 4.1. 0.0 91 2 / 3 11.1 5.616.7 3 6 8.6. 0 0 0.0 8.617.2 0 0 0.0 0.0.0.0 0.00,0 00 0.0 0.0 0 0.0 0.0 0.0 0 2. 0 2 0 0 8 16.2 54 21.4 6 16.2. 0.0 16.2 0 0.0 0.00.0 0 00. 0.0 0.0 0 0 0.0 0.00.0 0 Q. 00 0.0 0.0 0.0.0.0 0.0 5 5 22.1. 0.022.7 5.6 0.0 5.4 10 10 28.6. 0.0 28.6 0 0 3 0 L 0 12 0.000 10.0 1. 2.7 0.01 2.2 0 0.00.0 0.0 0 12 32.4 00 32.4 0.00. 0.0,0.0 0 0 0.0 0.00.0 000 0.00.0 0.0 2.7 2 2 2. 91, 0.0 9.1 2 11.1 0.0 11.1 1. 2.9 00 2.9 0 2 91 0.0 91 0 00.0 0.0 0.0 3 00 84 81 7 0 0 2.7 1 18.2 0 0.0. 18.8 00 00 0.0 17 5 22 77.322.7100 11 1/ 18/61.138.9100. 24 11 3548.6 31.4100. 34 3 31/91.9 8. 1100. Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological 8-Unknown 9-0ther Total Evaluation Q-Balloon 1-Astronomical 2-Airccaft 3-Light Phenom. 4 Birds S-Clouds, Dust, etc F-Insuffic, tato. 7-Psychological B. Unknown gOther Total Number MAY JUNE _JULY AUGUST Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtul Total Certain | Doubtful Total 2 2 5.9 0.0. 5.9 158. 0.0158 20 29.12.3 5617.9 107 10 3 6.1 4.0 2 4 5 8 12 29.4 5. 9 35.3 0 26 0.0 2.6 15 5.4 3.7 2 5 2 2.7 16.7 1 9.4 8.8 118.206 5 10.5 2,6 13.1 1100 12.9. 2.9 0 0.0 0.00.0 2/ 3 д.3 12 33 13.0 74. 20.4 3 16 12.0 9.3 21.3 12 00 1.9 2 0.0 2.2 0.0 2.9. 2.9 0 00 0.0.00 0.6 0.6 12 0 2.1 0.0 0.0 10.0 0 0 a 5 2 0 0.0 0.0 0.0 0.0 0.000 0. 1176. 00 176 0.00.00.0 5 14.7.0.0 0.0.14.7 0 00. 0.0 00 12 2 10 2. 0 0 12 314|0.0 316 2 0. 10 530.0 5.3 26.3 00 263 0 2 53 0.0 5.3 / 75 / 30 11 06 0.0 06 0.0 0.0 0.0 0 35 216 00 216 2 3 0.6 1.2 11.8 0. 30 185 0.0. 185 0 11 68.0.0.68 19 L 19 2 0 19 25.3 0.0 25.3 1. 3 0.0 0 119 3 1.3 253 0.0 25.3 2.1. 1.3 1.0 26 8 34 16.5 23.5100 37 1 38 974 2.6.100. 132/30 16281.5 18.5 100. 59 16 75/78.121.3:100. SEPTEMBER NOVEMBER DECEMBER Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain | Doubtful Total Certain Doubtil Total Certain Doubtful| Total Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0 0 00.0.00.0 / 9 15.8. 1.9|23.7 2 2 3 45 3.2 1. 26 15.8 18.4 0 1. 50 00 50 226. 2.6 5.2 6 2 9.7 8 65 194/258 13.0 4. 11 18.410.5 28.9 6.5 2 13.2 5.3185 0000.00.0 0 0 0 2 2 5 10.0 15.0. 25.0 3 100 5.0 /5.0 00 0.0.0.0 00. 0.00.0 0 0.0 0.00.0 0 00 0000 0.0. 00,00 0 0.0 0.0 0.0 0 00 0.0 0.0 0 0.0 00 00 00 0.0 0 0 0 0.0 0.00.0 0 00 0.0 00 0. 0.0 9 23.7.0.0 23.7 6 / 19.4 0.0 19.4 0 3 0.. 7.9 0.0. 1.9 5 5 25.0. 0.0 25.0 1. 2.6 0.0 2.6 - 13.20.0 /3.2 0 00. 0000 1 50 0.0, 5.0 NO 10 26.3.0.0,263 1. 158 2.6. 18.4 .1. 0 8 26.8. 0.0258 11 3.2: 0.0 32 8 2 8 21.0 0.0 210 2. 10.0 00 100 2 53 0.0 53 0. 3 150 0.0 15.0 33 5 38186813.2 100. 221 9 31 11.0 29.0100 26 12 38 68.4 31.6100 | 16 4 20 80.0. 20.0 100 188

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Evaluation 0- Balloon J-Astranomical 2- Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic Info. 7-Psychological &- Unknow 9-Other Total TABLE A126 EVALUATION DE ALL SIGHTINGS FOR ALL YEARS 84 SHAPE OF OBJECT, ELLIPTICAL ALL YEARS - 1947 1948 Numbe Per Cent Per Cent Number Per Cent Certain Doubtful! Total Certain Doubtful Total Nuraber Per Cent Number 1949 Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubthil Total Certain /Doubtful Total 159110 249 105. 1.3 17.8. ..5 5 8.9 00 89. 10 15 25 10.8 16/249 8 35 1.2 4.7 47915/ 330 118 10.0 218 12 ≤ 1621.4 71 28.5 16 181 i$/ 322 11.9 9.3 212 / 2 1.8 1.8 3.6 6 18. 34 07.2 19.4366 19 65 84 11.037.6 48.6 2 6 65 00. 6513 9 22 75 52 12.7 17 33 1 11 2.2 10 2 0.0 3.6 5. _ 5 00 54 5.4 0 00 0.0 0.0 4 14 07 03 10 1 1 0.2 03. 05 0 0 00. 0.00.0 00 11 11 4 23 00 23 00.0 0.0.0.0 0 00 0.00.0 0 00 0.000 134 0134 88 00 88 0 6 10,2 0.010.1 17 8. 25 11 05 1.6 2 7 0. 12.5 0.0.75 12 0 19 11.0 0.0 11.0 1 34 3. 4 2.2 1 11 00 1.1 0 2 12 00 1.2 33/ 033/ 28 0.0 21.8 0 9 16.1 0.0 kk.1 2 42 10 52 28 01 35 12 0 12 214 00 214 10 2 0 10 108 00 08 31 0 31 17.9, 00 179 2 4 22 22 44 3 0 3 17 00 1.7 1012 4451517 70-7 29.3 100. 49 2 54815 12.5100. 52, 41193 55.944.1 100. 97 7 6. 173/54. 43.9100 Evaluation 0-Balioon 1-Astronomical 2-Aircraft 3-Light Phenom. 5-Clouds, Dust, etc. 6-Insuftic. info. 2-Psychological & Unknown Other Total Evaluation i0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. + Birds F-Clouds, Dust, etc. 6 Insultic. Info. 7-Psychological - Unknown 9-0ther Total - 1950 Number Per Cent Number 19,51 Per Cent Mumber 1952 Per Cent Number Per Cent Certain Doubtsull Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtfull Total Certain | Doubtful, Total Certain 18 2 20 133. 15.14.8 610.9 Doubthul| Total Certain Doubtful Total Certain Doubtful Total 2.213.1 1/5.90. 205 143. 8.9 20.2 13 20. 9.6 52 14.8 1119.6 4.3.23.9 1110 55/65.10.8 54 162 15 2 111.1 15 12:6 5 8.2 2.210.2 142 128.270 14.0 12.626.6 0 0 00 000.0 0. / 00 2.2 2.2 14. 0 0 11 25 1.4 1. 1 2.5 00. 00. 00 0.0 2.2 8 06 0.2 0.8 0 0 0 0 2.2 00 00 0.0 000 0.00.0 2 3. 03 0.2 02 33 33. 24/4. 0.0 24.4 4 8.1 0.0 87 65 0 65 64 00 64 4 4 3.0: 00 30 0 1 0.0 2.2 36 0 36 264 00 2641 12 2.2 5 13 0.8. 05 1.3 12 370. 0.0 37.0 228 3 0 228 225 0.0 22.5 2 5 22 15 37 0 0 000. 0.0 0.0 22 _ 6 28 22 0.6 2.8 122 13135/9049.6/100. 39 1 4684.8 15.2100. 713 3011014 70.3.297.100. TABLE A127 EVALUATION DE ALL SIGHTINES FOR ALL YEARS - ВУ SHAPE 0F ROCKET ANO AIRCRAFT ALL YEARS Minde Per Cent Number 1947 1948 1942 Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubtfull Total Certain Doubtful Number Per Cent Total Cerlain Doubtful Total Cerlain Doubtful Total Certain Doubtfuf Total Certain Doubtful | Total 6 20 20 40 0 00 0.00.0 . 71 142 00 6.2 4 3 / 16 20 22 10.9 136 0 0 0 00 0.000 21 28 0. 0 49.14.3 19.0 333 0. 0 00 0000 2 3 13 07.20 0 0 2 0 00 00 00 0 5 0 2 1 00 71 2. 0.0 14.3 /4.3 1 6 35.7 71 42.8 0 2 3 / 3. 00 18.718.7 3 12.5 в6.2 18.7 0 00 00 0.0 0 00 00. 0.0 0 0000000 0 0.000. 0.0 0 0.0 00 0.0 0 0 00 00 00 0 100. 0.7.07 0 0 00 00 0.0 0 0000 00 0 00 00 00 10 10 68 00 68 00.0 0.0 00 L 0 1 71 0.071 2 /2.5 0.0 12.5 43 ° 43 323 00293 в 0 7 4800480 0 0 00 00 00 0 0 0 00 00 00 1 0 / 62 00 62 0 6 10000.0 1000 3 0 3 214 0.0 214 6 0 6 375 0.0 3/5 1 1 8 48 01 55 0 0 0 00 0000 1 0 1 1100 21 0 0 0 00 0.000 97/50 1471660 340 100. 6 0 6 100a.0.0/00 10 4 14 171.4/28.6100. 12 4 16 750 25.0000. Evaluation 0- Balloon | 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5- Clouds, Dust, etc. 16 Insullic info. 7-PsychoSogical &- Unknown 9 Other Total Number 1950 Per Cent Number 195/ 1952 Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubtful | Total Certain Doubtful Total Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0. 12700.27 0 1 00 48 4.8 2 13 13 26 1 1.7.46.2 53.9 1 48 00. 4.8 2. 1. 26. 65 9.1 0 0 00.0 00 0.0 5 4 9 23.8 19.0428 9: 22 31 11.128.6403 0 000. 00.00 а 0 00 0000. 0 0 00 0.0 00 0 0 1 3 2613. 39 0 00000.01 0 0 00 0.0 0.0 0. 0. 000000 0. 11100.21 2 0 00 00 00.0 / 0.0 1.31.3 2 9.5.0.0 9.5 4 е 4 5.2 0.0 5.2 00.0 0.00.0 0 0 00 00 00 6 0 6 78 00 18 3 1. 1 3 23.10.0231 1 77 00 7.7 1 / 2333 00. 333 18 0 18 23.4 0.0 23.4 0 / 4.8 0.0 4.8 5 52 13 65 6/13/538 46.2100| 161 5 21 262/23:8 V00. 46 31 77 597 40.3100. 189

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Evaluation 0- Balloon I-Astronomical 2-Aircraft 7-Light Phenom 4-Bird 5-Clouds, Dust, etc. G Insuftic Into. 7. Psychological o Unionown sothe Total 0-Balloon 2-Aircraft 3-Light Phenom. + Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological 8-Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. + Birds S-Clouds, Dust, etc. & Insuffic. into. 7. Psychological 8-Unknown 9-0ther Total 0-Balloon | 1-Astronomical 2-Aircratt 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 insuitic into. 7-Psychological 8-Unkchom 9 Othes Total TABLE A128 EVALUATION OF ALL SIGHTINGS. FOR ALL YEARS BY SHAPE OF OBJECT, METEOR AuL YEARS COMET Number Per Cent 1947 194/8 19,49 Certain | Doubtful Total Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 4 143 0.04.3 0.00. 00 0.0 _ 0 0 00 0.0 0.0 48 25 73 51.126.677.2 0 2 2 4 2.1. 2.1 4.2 2 0 2 100.00.01000 5 8 13 312 50.081.2 0.0 000.0 0 00 00.0.0 00. 11.11 00.0 0.0.00 _ 0.0 00 00 00 1111 0.0. 0.0 0.0 0 0,0 1. 11.1 2 2.L 0.0. 2.1 0 8 0.0 0.0.0.0 8,5 00 8.5 0000 0 0.0 0.0 0.0. 0 0 00 00 00 00 00 0.0 0.0 0000 -00. 00 00 10.0 0.00.0 0 00 00 0.0 0 00 00 0.0 3 3. 188. 0.018.8 0.0 0.0 0.0 0 00 00 0.0 0 0 00 0.0 0.0 000000040 164|301 94168131.91001 2 0 2100.00.0100|8 8 16 500 50.0100 2 0 00 00 00 0000100% 25.0. 62.5.57.5 00. 00. 0.0 00 00 0.0 00 12.5.12.5 00 00 00 00 0.000 0.0. 00 0.0 0.0 00 00 0 00 00 00 6 8 250 75.0000 Humber 19.50 Per Cent 1951 Certain Doubtful Total Certain Doubtful Total Number Per Cent no 9 52 Per Cent Number Per Cent Certain | Doubtful Total Certain] Doubtfel Total Certain Doubtil Total Certain Doubtful Todal Certain Doubtful Total Certain Doubtul Tota 0 50.0 0.0 500 00 000.0 0 3 4.7 0.0 50,0 2 1/48 4.7 00 50,0 578. 17.2.75.0 0 0.0 0,0 0.0 0,0 0 00 00 0 0 0.0 0000 0 00 50.050.0100.037 0.0 0.000 2 2 4 0 0.0 0.0 / 3.1 3.1k2 00 100 00 0 0.0 0,0 0.0 0 0 00 0.0 0.0 1.61.6 0.0 0.0 00 0.0 0.0 1.6 0 0 0 0.0 0.0 00 00 00 0.0 0.0 0.0 0.0 00 2 0 2 3.1 0.0 3.1 0 0 0.0 0.0 00 0 0 0.0 0000 0 0 0 00 0.0. 00 0.0 0.0 0.0 00 0.0 00 5 0.0 1.8 0 00 0.0 0.0 1.8 0.0. 0.00.0 2 0 21000.00100 2 50.050.0100 149/15 64 76.623.4 100. TABLE A129 ENALVATION DE.. ALL SIGHTINES FOR ALL VE ARS B4 SHAPE OF OBJECT, LENTICULAR, CONICAL OR TEARDROR ALL YEARS 1941 1948 1949 Number Per Cent Number Per Cent Per Cent Number Per Cent Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtiul Total Certain Doubtful Total Certain Doubttull Total Certain Doubtful Tota 29. 5 3418.4 3.2 21.L 0 00 0.0 00 2 3 18.2 9.1 21.3 8 53.3 0.0 533 14 14 28 8.9 8.9 17.8 00 8.3 8.3 16 4 0 36.4 00. 36.4 8 2 0.0 13.3 13.3 17 33. 10.8 10./ 0.6 20.9 00 00 00 2 0.0 0.0. 0.0 0 5 0.0. 33.3 33.3 0 0.0 0.6 0. 0.0 0,0 00 0 0.0 0.0 0.0 2 0.6 0.6 1.2 00 0000 2.5 9.1 0.0 0.0.0.0 a.l 4 9.1 0.0 0.000 002.5 Q 0.0 0 0.0 15 32 4 4.5 0 00.00.00 0.0 0.0 0.00.0 15 0.0 9.5 4 333 0.0 33.3 0,0 0.0 0.0 0.00.0 0.0 4 25, 0.0 2.5 0 0 00 00 00 32 e 0 0 000000 20.3 0.0 20.3 52.5 0.6 3.1 5 2 e 0 00 00 00 5 41.1 00 4.1 2 2 18.2 0.0 18.2 0 0 00 00 0.0 2 16.7 0.0 16.7 1 21 0.0 9.1 0 0 00 0.0 0.0 16 42 158 134 26.6.100. 1 12 91.7 8.3 100. 10 / 11190.991 100. 8 2/15 533 46.7.100 1950 195/ 1952 Per Cent Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubttul To tal Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2 3 16.1 83 25.0 2 2 п.0 2 3 18 14.9 3.0:17.9 16.7.16.7 2 286. 0.0 28.6 15 2 2 0.028.428.1 10 7 17 99 69 16.8 0 3 25.00.0 25.0 0 0.0 0.00.0 0.0 0.0.00 0.0 14/ 11 25 13.9 10.9 24.8 00 0.0 / 10.01.0/0 0 0.0 0.0 0,0 0 0 0.0 0.0 0.0 0 10.01.0 11.0 0 0 0 000 8.3 00 00 0 0.0 0.0 0.0 4. 00. 4.0 4.0 00 8.3 0 0.0 0.0 00 2 0 28.6 0.0 28.4 8 0 $ 79,00. 1.9 0.0 0.00.0 25.0 1 0 4 40 00 4.0 3 0.0 25.0 0000, 00 3 12 25.0 25.0400. 5. 0 0 2 14.3 0.0 14.3 2/ 0 2/ 208 0.0 20.8 0.0 0.0 0.0 2. 10 1020 7 71.4 28.6100 73. 28 10112.3.27.1100. 190

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Eraluation 0- Balloon J-Astronomical 2-Aircraft, 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. 6- Insuffic. Into. 7-Psychological 8-Unknow $ Other Totad JARLE A130. EVALUATION DE ALL SIGHTINGS ERR ALL YEARS ALL VERRS SHAPE OF OBJECT FLAME 1947 Per Cent Number Per Cent Number 1948 Per Cent Number 1949 Number Per Cent Certain Doubtful Total Certain | Doubtfui Total" Certain Doubtful| Total Certain Doubtul Total Certain (Doubtful | Total Certain Doubtful| Tolal Certain Doubtful| Total Certain Doubttul Total 3 611 17 3.4 0 / 33.3 0.0. 33.3 57 19 0 44 10/ 32.8 25.3 58.1 2 0 2.60l T 0.0 6a7 10 29 10.9. 5.716.6 0 0 0.0 00 00 0 0.le 0.0 0.4 0, 0.0 0.00.0 0.6 0 0 00 00 0.0 0 0.0 0.0.00 a. 0.0 0.00.01 0 0 5 3 1.7 0.0 1.7 0 2 00. 0.0 00 0 0.0 00 0.0 18 0.0 1./ 10.3 0.010.3 00 0.0.00 00. 00 00 0 7 0 0. 0 0 / 0 00 0.00.0 0 0. 0 00 00 0.0 4 11 41.2 23.564.7 / 27 1 35 17.059.4 74.4 1 00 59 5.9 5 85 21 10.6 0 0.000 0.0 0 00 00 0.0 0 0.0 0.0 00 0 00 00 00 0 00 00 0.0 0 00 00. 00 0 0 0. 00.00.00 0 00 00,00 1 59 00 5.2 8 13 461 2.975 0 4 4 0.0 23.523.5 2 0 5 0 000 2,4.3 00 4.3 0 00 00 00 5 10.6 00 10.4 0 00 00 00 63 124 / 63.836.2100. 0 3 100200 100. 8 9 47 /47.152.9100 19/28 47 404/59.6100. Evaluation 0-Balloon 1-Astronomical 2-Aircrait 3-Light Phenom. 4- Birds 5-Clouds, Dust, etc. G Insuffic. into, -Psychological 8-Unksom other Total Evaluation 0-Ballcon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. info. 7-Psychological & Unknown 90 ther Total Number 1950 Per Cent Number 1952 Per Cent Number Per Cent Certain Doubtful Total Certain Doubttu! Total Certain Doubtful Total Certain Doubtful Total Certain Doubtici Total Certain Doubtful! Total Certain Doubtful Total Certain Doubtil Total 0 0 00. 00 0.0 0 00 00 00 2 3 3 5 2.4 36 60 14/ 64.717.4.82.3 3 4. 14.3 42.9 51.2 28 7 35 33.1 8.4 42.2 211.8 0.0 11.8 0 1 14.3 00 14.3 12 8 20 /4.5 9.6 241 0 00 00 00 00 00.00 142. 001.2 0 00 00 00 0 0 00 00 0.0 / 10012 12 0 00 0.00.0 0 00, 0.000 0 0 00 00 00 00 0 00.00.00 00 0 00 00 00 1. 5.9 00 5.9 0 00 00.00 0 0 0 0 0.00.00 00 0 1 12 0.01.2 0 00. 00, 00 2 2.2.4 0.0 2.4 2 286 0.0 28.4 2 10.8 0.010.8 0 00 0.0 0.0 9 46 1.2 10.8 14 3: 17 82.4. 17.6100. 4 3 7 571429/100. 63 20 83 75.924.1 100| TABLE A 131 EVALVATION OF ALL SIGHTINGS FOR ALL YEARS ALL YEARS BY SHAPE OF OBJECT, OTHER Number Per Cent Number 1942 Per Cent Number 1948 SHAPES 1949 Per Cent Number Per Cent Certain | Doubtful Total Certain Doubttull Total Certain! Doubtful Total Certain Doubtfull Total Certain | Doubtfu! Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total 34 162 43 19 531045.8 28 1/13./8.6 21.1 34. 33 12 11.9 10.1 22.0 4 8 12 1.2 2.4 0 3 0 0 100 0.0 00 2 5. 42.9 28.6 11.5 2 2 0 1 3 3 2 91.00 4.1 4 424 2.1 9.5 5 9.1. 13.6 22.7 13 117 310 45 40.5 0 0.0 00 00 3 0.0 4 45 13.6 18.2 5 2 1 11.9 4.8 16.7 0 0.0 0.0 1 00 45 45 0 0 0 00 0.0. 00 40 N 4 0.6 06 1.2 _0 00 0.0. 0.0 71.2 0.9 2.1 0.0 2 45 45. 90 0 0 0.0.00 00 0.0 00 00 0.0 0.0 0 0 • 0.0 00 00 25 25 1.110.0 1.6 0 6 18 00 0 18 66 202. 00 20.2 NO 15 24 21 4.5 0 0 0 0 0.0 00 00 18.2 0.0 18.2 5 5 11.9 0.0 11.9 0 00 00 00 2 28.4 0.0 28.6 0 00 00 00 0 2 0 0 00 00 00 000. 00 00 0 2 2 91 00. 9.L 8 0 0 8. 19.0 00 190 2 00 9.1. 91 0 1 24 00 2.4 123196327170.6129.4 100. 5 2 + 171.4128.6100|12:10 22 545455 100/33/9 42786 21.4 100. Evaluation 0-Balloon I-Astronomical 2-Aitcsaft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. G Insuffic. Into. 7-Psychological & Unknown 9-0001 Total 1950 Number 195L Per Cent Number Per Cent Per Cest Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain [Doubtful Total Certain] Doubtful Total Certain | Doubtful, Total Certain Doubtful Total 095N 2 3 9 161 48 21.5 3 3 134. 0.0 13.6 21 3 20 14. 35 109 2.3.182 1 95 71 16.6 4. 4.5 13.6 181 13 33 104 6.8.11.2 5 13 19.0 11.9 30.9 4 5 182 4.5 22.1 2/ 00 4 22 43 10.9.11.5 22.4 0 00 00 00 0 00 00 3 7 21 16 37 0 0 0 0.0 00.00 0 0.0 0.0 0.0 205 0.5 11.0 0 0000 100 5. 11.9 0 0 00 1 0.0 7 2.1 16 3.2 5. 0 00.11.2 0.0 3 2 0 9.1 00 %1 94.1 00 4.7 00 00 00. 5 5 119: 00/11.9 3 00 1.1. 1.1 NA 0 0 6 2 00 00 00 0 6 3100 213 00 213 4/3 3.1 0 4/3 224. 0.0 224 9.1.0.0 9.1 5 2 2 26 10 3.6 29. 13 42 69.0 31.0.100 18 4 22 81. 8 18.2 100. 134/ 58 192698302100. 191

━ PAGE 201 ━

0-Balloon 1-Astronomical 2-Aircraft 7-Light Phenom. 14-Birds 5-Clouds, Dust, ete. 6 Insuffic into. 7-Psychological # Unknow 90 ther Total TABLE A132 EVALVATION DE ALL SIGHTINGS FOR 6.4 SHAPE OF ОВлЕСТ , SHAPE ALL NOT YEARS STATED ALL YEARS 1947 Number Per Cent Number Per Cent 1948 Number 1949 Her wes Number Per Cent Certsin Doubtiul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total Certain Doubtful| Total Certain] Doubtful Total Certain Doutaful Total Certain Doubttul Total 38 13/ 15 4 184.8 5.1 9.9 0 / 32 0.0 3.2 3 3 1 94 94 188 63194 16.7 8.0 147 13 114. 41.9 3.2 451 4 6 63 12.5 18.8 4 12.5 00 12.5 0 32 0 00 00 0.0 26 58 34.0 21.7 4.7 58/33 26 1.4 17.0 2 3.2 32 6.4 15 7.4 8515.9 0 0.0 1/ • 00 00 0.0 000 2 2 4,3 0.06.3 2 00. 00 0.0 08 01 ея 00 00 an 31 3.1 00. 0.000 5 109 2 1911 43 506 00 06 0 0.0 0.0 0 0.0 0.0 0 109.13.9 00 13.9 ₴ 4. 0.3 0,3 06 0 0 4.12.9 00 00 /2.9 7 7 21900 121.9 / 3.2 0.0 3.2 0 00 0.0 0.0 0 8 е 0.0 0.0 0.0 8.5 0.0, 8.5 0 0.0 0.000 0 191 24.4 0.0 24.4 11 54 55 14 6.9 6 3 6 19.4 00 3 19.8 4.1 0.0 9.7 6 0 118.800 18.8 -6.4: 00 k4 0 00. 00 00 7 14 20 7.4 1609175/784 71.722.3000 29 1 2 3/ 93.56.5 100. 24 8 32 75.0.25.0100. 60 34 24 638 36.2100 Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phese. 4-Birds 5-Clouds, Dust, etc. G-Insuffic. Into. 7-Psychological 8-Unknown g-Other Total Humber 1950 1951 Number Per Cent 1952 Per Cent Certain Doubtful Total Certain Doubtill Total Certain Doubtful Total Certain Doubtfal Total Number Per Cent Num ber Per Cent Certain | Doubtful Total Certain | Doubtful Total Certain Doubttuf Total Certain | Doubttal| Tota 4 2 6 4.1. 2.4 7.1 2 2 00 3.6 13.4 30 33 63 6.2 68 13.0 19 4 23 22.3 4.1 27.0 12 6 18 21.8 10.9.32.7 53 22 15 10.9 45 15.4 8: 1912.9 94 223 2 2 4 36 36 72 50 39 89 103 80 18:3 0 00 00 0.0 0 0 0 00 00. 00 0000 200 00 00 9 10.6 0.0 10.6 MOON 0. 2 36 00 36 0 51.0 00 1.0 0 0 00 00 0.0 6 0 612 00 12 0 0 00 00 00 5 0 5 10 00 10 0. 4 13 00 23 77 0 77 15.8 0.0 15.8 0 00 0.00.0 / 0. 1 18 00 1.8 0 23 3 2 2 00 04 04 23 27.1 00 27.119 0 19 34.5 0.0 345 131 0 131 26.9 0.0 24.9 2 5 35 24 5.9 5 0 5 91 00 91 25 9. 34 51 18 6.9 169 16 85 91.218.8100. 45 10 5581.81/8.2100/382/105 487/78421.6100. 192

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Evaluation 0-Balloon | 1-Astronomical 2-Aircratt 3-Light Phenom. 4-Birds S-Clouds, Dust, etc. 6- Insuffic Into. 7-Psychological 8-Unknown 9 Other Total —tallation 1-Astronomical 2-Aircraft 3• Light Phenom. + Birds 5-Clouds, Dust, etc. 6 Insuffic. tafo. 7-Psychological & Unknow 9-Other Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom, 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological 8 Unknown 9-0ther Total Evaluation 0- Balloon I-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuftic. into. 7-Psychological & Unknown 90ther Total TABLE QL33 EVALVATION OF UNIT SIGHTINGS EOR ALL YEARS SHAPE ОЕ. OBJECT, ELLIPTICAL ALL YEARS Number Per Cent Number 1947 1948 1942 Per Cent Per Cent Per Cent Certain Doubtful Total Certain | Doubtfil Total Certain Doubtful Total Number Number Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 127. 89. 21 107 1.5 18.2 01 5 0.0 8 2 36 1.8 150122 272 12.6.10.3. 22.9 5 9.6 9.6 9 4, 13 11.3 7.7. 250 4 5.4. 142118. 26011.9. 9.9 21.8 2 1.9 1.9 3.8 16. 15/311.3 13 2.6 2 2 3.8 0.0 3.8 4. 12 0.7 0.3 1.0 00 00 00 0 3 300. 03 03 0 11 0.111 93 00.23 15 - 8 23 1 3 0.7 2.0 0 220 185. 0.0 18.5 0 2 00 00 0.0 11.5 0.0 11.5 1 3:8 3.8 1.6 220 8 154 00 15.4 34 8 42 29 07 36 12 0. 12 2310.0. 23.1 12 6 0 0 7 2 15 101 11.6 21.7 15 27 17.4 217 321 9 43 52 8.0 38.4 464 0 6 81 00 8.1 1 12 N • 4.5 10.7 3 00 4.3 43 / 1 00 14 14 00 00 00 6 18.7 00 8.2 OND 0 0.000 0.0 2.48. 00 18 0 0.0 00 0.0 19 19.17.0 00 17.0 1 14 0.0 1.4 2 2. 18 0.0 18 / 1 10.10.0 10.1 16 16.14.3. 00 14.3 3 29 14 4.3 3 0 3 21 00 27 823 367/190 692/308 100 451 7 52 86.5113.5 100. 41: 28 69 59.440.6100. 62 50 112|55.4944.6100. 1950 Per Cent Number 1951. - 195₴ Per Cent Number Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Cestain Doubtful Total Certain | Doubtfull Total Certain Doubtsul Number Total Certain Doubfil Total Certain Doubtful ( Total 0 12.1 1.3 14.0 4 5 10.8 2.7 13.5 97 17 174 11.5. 9.2 20.7 10 14 12.7 5.1 2 10 21.4 5.4 270 102 118.5 0 0 15 2 20 2 2 0 0 2 2 13.9 17.8 2.5 5 113 54 156 12.16.4 13 16.4 4 10.8 2. 13.5 109. 222 134. 13.0 26.4 0 0.0 0.0 00 0.0 2.1 2.7 25 17 1.3 3.0 0 0.0 0.0 00. 0 0.0 0.0 0.0 2 0 0.0 2.7 2.7 14 2 8 0.1 0.2 0.9 15 119.0 0.0 19.0 2.5 2,5 4 2 0.0. 20 253.00,25.3 10 0 0 0.0 00 0.0 3 0.0 0.4 0.4 4 10.8 0.010.8 0 6/7.3 0.0 7.3 00 2.1 2.7 8 5 13 1.0 0.4 1.6 10 4.25 2.5 5.0 27.0 0.0 27.0159 0 159 18.9. 0.0 18.9 0 0.0 0.0 0.0 15 5 20 18 0.6 2.4 10 TABLE 9 79 188.611.4 100. 30 7: 37/811189 1005751266841 684316100. A134 EVALUATION DE. UNIT SIGHTINGS FOR ALL SHAPE ROCKET ALL Number YEARS 1947 1948 AND Per Cent Nonber Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 3 3 21 2 0 0. 10. 1 37 6 2 5 2.4 1. 6 40 8 2.4 16•4 8.8 23. 44. 16.8 18 4 35.2 3 1.6 0 0.8 2.4 0.0 0.0 0.0 0 0 0 0 00 00 00 0 0.0 000.0 0 00 00 00 0 2 0.0 18.218.2 0 0.0. 00.0.0 5 45.4 9.154.5 0 0.0 0.0 0.0 0.0 00. 0.0 0.0 0.8 08 10 8000 8.0 0 0 0.0 0.0 00 0.0 0.0 0.0 0 0 0.0 0000 1 5.6. 0.0 5.6 0 00 00 00 00 0 0 0 0.0 10.0 0.0 0.00.0 0.0 / 910.0 9.1 0 00. 00 00 0 31 29.6 0.0 29. L 6 6 100.0 0.01000 1 91 00 91 1 48 0.8 5.6 0 0.0 0.0 00 1 91 0.0 9.1 89 36125 11.2 28.8 100. 6 - 0 61000 0.0100. 8 3/11 72.127.3 100. YEARS AIRCRAFT 1949 Number Per Cent Certain Doubtful Total Certain Doubtful Total / 0.0 7.1 0 0.0 7.1 1.1 2 - 1 3 14.3 1.1. 21.4 0 0 00 00 0.0 0 0.0 0.0 0.0 0. 0 0.0 0.0 00 214/3 0.0 14.3 1 71 0.0, 1.1 0 6 42.9 0.0.42.9 0 0.0 00 0.0 12 z 14 /85.714.3100 1950 Number Per Cent Number 1951 Per Cent 1952 Her lon Per Cent Certain Doubtful Tolal Certain Doubtful Total Certain Doubtful Total Certain Doubtlul Total Number Number Certain Doubtful Total Certain | Doubifül Total Certain Doubtful! Total Certain | Doubtful | Total нл 0.0 11.0 0.0 5.3 5.3 215, 1.5. 3.0 2 3 11. / 22.2 33.3 0 00 0.0 0.0 2 5.30 0 0.0 0.0 0.0 0.0 0.0 0.0 4 0 9 0 4.5 7.5 263 21147.4 17.26 13.6 25.8 39.4 0.0 000.0 30 15 4.5 0.0 0.0 0.0 2.0 0.0 0.0 1.L 0.0. (1.1 00 00.00 3 333 0.0 33.3 11.1100 11./ 1 2 9 71.8 22.2.100 0 0 6. 14 0 0.0 00.00 2.0 0.0 0.0 0 0000000 / 1 0.0 0 0.5 0.0 15 15 10.5 4 6/ 0.0 6.1 0 0.0 0.0 0.0 9.10.09.1. 31.L 0.0 31.6 15 0 15/22.7 0.0 22.7 0 5.3 0.0 5.3 3 $ 4.5 15 6.0 5 19 73.7/26.3100. 42 24/66 63.636.4100. 193

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Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. d-Birds S-Clouds, Dust, etc. G Insuffic. Info. 7-Psychological 8. Unknown 9 Other Total Evaluation 0-Balloon 1-Astronamical 2-Aircratt 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G-Insuffic. Info. 7-P.sychological & Unknown g-Other Total Evaluation o-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological 8-Unknown SOther Total Evaluation o-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. G- Insuffic into. 7-Psychological 8. Unknown 9 Other Total TABLE A 135 EVALVATION DE UNIT SIGHTINGS FOR AH YEARS B4 DE ORJECT, METEO 0R COMET ALL YEARS Number Per Cent Number 1947 1948 1949 Per Cent Number Number Per Cent Certain [Doubtil Tolai Certain | Doubtful Total Certain Doubtfull Total Certain Doubstul| Total Certain Doubtful [ Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful | Total 2 41 2 2 2.60.0 2.6 000 00 00 21 62 539 27.4 81.5 2 4 8 40.040.0 800 0.0 0.0 0.0 0 0 0 0.0 0.0. 0.0 143 11.4 85.7 4 7.6 2. 6 5.2 5 0.0. 13 13 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 13. 0.0 0.0 0 00 0.000 0.0 0.0 14.3.14.3 0.0 0.00.0 0 0.00.0 5 0 0 0 0 0.0 1 1.30.0.1.3 0 0.0 0.0 0.0 0.0 0.0 0.0 010.0 0.0.00 0.0 0.0.00 0.0 5 66 006.6 2 20.0 00. 0.0 0.0.20.0 0 00 0.0.0.0 0.0 100 0 00 0.0 00 0 0 00 00 00 51/25/76 67.1 32.9100. 7 10 60040.0100 6 1 14.3|85.7100. 1950... Per Cent --1951 19.52 Certain Doubttuf Total Certain Doubtful Total Number Per Cent Number Per Cent Per Cent Certain Doubtful Total Certain Doubtfud Total Certain Doubtful Total Certain Number Doubtful, Total Certain Doubtful Total Certain Doubtful Total 0 / 50.00.0 50.0 0 00 00 00 / 18 500. 0.0 50.0 2 500 50.0 100.034 0.01.8 2 00 00 00. 000. 00,00 - 2 436 36 0.0 00.00 0 2 11 45 61.8 200. 81.8 7.2 0 0 00 00 00 0.0 0 0 1.8 11.8. 00. 0.0. 0.0 0 00 00 00 0 0,0 00.0.0 0 0 0 00.00. 00 0. 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0,0 0.0 0 00. 00 00 0 / 18 0.0 1.8 00. 0.0 0.0 0 0 00.00.00 0 0 00 0.0 0.0 0 0 00 0.0 0.0 0 0 00. 0.0 0.0 0 3 54 0.0 5.4 0 0 00 00 0.0 0 00 00 0.0 0 00 0.0 0.0 2 TABLE 2 1000. 0.0 100. 1 2 500500100. 41.14 55/145 255100 A134 EVALVALION OF UNIT SIGHTINGS. FOR ALL YEARS BY SHAPE OBJECT, LENTICULAR, CONICAL OR TEARDROP ALL YEARS 1947 Number Per Cent Number Per Cent 1948 Number Per Cent 1949 Number Per Cent "Certain" Doubttu! Total Certain Doubtfull Total Certain Doubtful| Total Certain Doubtful| Total Certain Doubtful| Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total 26 4 30 19.0 2.9 21.9 0. 0 0 0.0 0.00.0 226.0 00 250 5 556 00 554 13. 13 24 9.5 9.5 19.0 10016716.7 2 3 5 3. 315. 00 315 2 2 0.0 22.2. 22.2 16. 13 29 11.7 9.5 2/.2 0 00 00 0.0 0 00 00 00. 2. 00.22.2. 22.2 0 1 00 07 07 0.0 0.0 00 0 00 0.0 00 000. 00. 0.0 2 0.4. 0.2 1.9 00.00,00 112.5. 00 0.00. 0.0.00 2. 0015 1.5 13 4. 26 3 0 0 2 0 0 13 25 00 95 4 2.9. 00 2.9 26 19.00.0 19.0 4 2.2 0.7 2.9 NO 0 2 .L. 125 0 010 0 00 00 0.0 2 33.3. 0.0 333 0 00 00.00 10 0 0 0 00 00 00 0 00 00 00 0 00.0- 0.0 0.0 0 0 00 00 00 2 333 0.0 333 / 12.5 00 12,5 / 16.7 00 14.7 12.5 00 125 0000 0 0.0 0000 000 00 0.0 000 00 0.0 0 00. 00. 00 102/35.13774.5.25.5100|| 1 6 833 167 100 8 0 8 100.0.0.0100. 5 41 9 55.4 44.4V00. 1950 Number 1951 19,52 Per Cent Per Cent Number Per Cent Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Number Per Cent Doubtrul! Total Certain Doubtful Total Certain Doubtful' Total Certain Doubtful | Tota 2 3. 18.2 91 27.3 2 2 0.0 18.2 18.2 0 3 27.3 0.0 21.3 0.0 00. 0.0 0 00 00. 00 _ 0 00. 00 0.0 0 9.1. 0.0.41 00. 00.00 2 162. 00.18.2 0 0.0 0.00.0 3 11172.727.3100. 2 0 0 0 2 0 1. 51 2 33.3 0,0 33.3 15 18/55, 3.1 18.6 0.0. 16.7.16.7. 10 1710.3 7.2 17.5 0 0 0 00 00. 0.0 13 11 24/3.4 11.3 24.7 0. 0.0 00|00 0 1 00 1.0 11.0 0.0 0.0 0.0 0 0.0 0.0 0.0 2 .33.3 0,0 33.3 0.0 00 00 8A00 1 00 10 1.0 20.0 2.1 2.1 8 8.2 _0.0 8.2 000 2 0 20 4 4.1. 0.0 4.1 1 14.1 0.0167 20 20.6. 0.0 20.6 0 00 00 00 11.0 11.0 2.0 6 83.3167.100. 2647 173.2 26.8 100. 194

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0- Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, eic. 6 Insuffic info. 7-Psychological 8-Unknown S-Othe Total Evaluation a-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4 Birds 5-Clouds, Dust, etc. G-Insuffic. Info. 1-Psychological & Unknow 9-0ther Totad 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Info. 7-Psychologicad 8-Uncnown Is-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. 6- Insuffic into. 7-Psycho lo gi cal 8- Unknown 9 Other Total TABLE A 131 EVALVATION SHARE DE UNIT SIGHTINES FOR ALL YEARS FLAME ALL YEARS Number 1947 Per Cent Allante Per Cent Number 194/8 Number 1949 Per Cent Certain Doubtful Total Certain Doubtlui Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certaia Doubtful Total Certain Doubtful Total 46 17 0 0 2 15 3 6 22 2.2 4.4 1500 0.0 500 0 0 00 0.0 0.0 0 0.0 00 0.0 24 70 33.8.17.6 51.4 / 1500.00 50.0 7 3 10 43.818.862.6 2 10 12 10.552.663.1 10 37 125 7.4 19.9 000. 00 00 1 00 6.3 6.3 3 10.5 5.3 15.8 101.0.0 07. 000.00 00 0 00 00 00 0.0 0.0 0.0 100. 0.107 0 00 00 00 0 00 0.0 0.0 0 0 00 0000 0 00 00. 00 a 0 0 00 00 0.0 0.0 0.0 00 3 2.2 00 22 0 00 00 00 0 0 00 0.0 0.0 21.5.0.01.5 0 15 11.0 0.0110 5 11 4.4 3.7:8.1 0 0 - 0 00 0.000 0 000 00 0.0 0 00 00 00 163 0.0 6.3 0, 00. 0.0 0.0 93/43/36 684/31.6.100 2 0 | 2 10a0 0.0100. 0 8 4 4 0.025.025.0 816/50.0 500100. 2 2 000 0 8 11 0.0 0.0 0.0 2 10.5 0.0 10.5 0.0 00 0.0 2 10.5 0.010.5 0.0 0.00.0 19 421 57.9100. Number 19,50 Number 195/ 1952 Per Cent Per Cent Totall Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Certain Doubtful Total Certain Doubtful Total Certain Doubtrul Total Certain| Doubtful' Total Certain Doubtiul Total Certain Doubtful | Totall 0 0.0 0.010.0 0.0.0 0.0 0.0 12 60.0 20.0 80,0 2 200.20.0.70.0 2 13.3 0.0 13.3 2 26 12 3 5 2.5 3.8 63 1, 33 132.9 8.9 4.8 0 0.0 00.00 0.0 0.0 0.0 0.0 0.0 0.0 00 10.0 0.0 0.0 0.0 0.0 16.2 00 6.7 0 00 00 00 2 0 0 0 0 0 20.00.0.20.0 20/15.210./25.3 0 0.0 0.0 0.0 / 1.3 0.0 1.3 0 0.00.0 10,0 0013 0 0 0 1.3 0.0 00 0,0 00. 0.0 0.0 0 0.0.00 10.0 43 0.0 1.3 0 00 00 00 2 25 0.025 2 40.0 00 40.0 11.4 00 11.4 0 00.00. 00 / 7 74 1.3 8.9 12 TABLE 3 15/800 20.0100 5 80020.0100. 59/20 29 74.725.3 100. A138 EVALUATION DE INIT SIGHTINGS EOR ALL YEARS B4 SHAPE OTHER SHAPES ALL YEARS OF OBJECT, 1947 1948 194/9 Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtfull Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total Certain Doubfful | Total 32 15 47 12.0) 5.4174 0 00 0.0 0.0 2 2133 00 13.3 / 2 3.8 29 2/ 50 12.9 80 18.9 3/ 4 29.60 117 10.9 22.6 3 1 1.5 1.1 2.6 0.8 1.6 / 0 161 3.8 1.6 2 200. 40.0.600 0 00 6.7 9 23./ 11.5 34.1 0 00 0.0 0.0 2 3 47 13.3 20.0 5 -11.5 0 0 00 0.000 0 00 00 00 2 2 4 0.8 0 0.0 0.00.0 / / 2 67 - 6.7.13.4 00 1.7 19.2 2 00 0 0.0 00 0.0 0.0 0.4 0.4 0.0 0.4 0.8 0 00 0000 0 00 00 00 00. 00 00 21 0 21 6 0 80 0 0.0 8.0 0 00 00 0.0 3 0 3 20.0.00 20.0 0 15.4 0,0 15.4 6 23 0.0 2.3 0. 00 0.0 0.0 0 00 0.0 00 00 00.00 55 8 0 55 20.1 0.0 207 6 14 3.0 23. 53 0 0 2 40.0 00 40.0 2 0 2 2 133 00 133 5 5 19.2 0.0 19.2 0 00 00 00 2 00 13.313.3 38 00 3.8 1189 7 7266 71.1 28.91100. 3 2 5 60.040.0100 10 5 15 46733.3100. 201 26 16. 9 23. 1100. Number 1950 195/ Per Cent Number Per Cent Number 1952 Per Cent Number Certain Doubtfull Total Certain Doubttul Total Certain | Doubtful Total Certain Doubtful Total Certain Per Cent Doubtful | Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 1 18.2 30 2/2 3 14.3 6 0.014.3 20 13 33 12.0 78 19.8 9. 1 9.118.2 4. 4.8 14.3.19.1 17 10 22 10.2 16.0 16.2 7 0 0 3 10. 21.2 21. 30.3 5 19.0 .4.8 23.8 16 2/ 0.0 0.00.0 0 00 00. 0.0 3 3,7 94: 12.722.3 0 0 0 2 0 0.0 00 0.0 0 00 00 0,0 2.4 1.8. 4.2 206 0.4 1.2 0.0 0.00.0 0 0.0. 00 0.0 2 06. 04 11.2 3 0 9.1 0.0. 9.1 2 95 0.0 95 0.0 0.00.0 00 00 00 5 15.2 0.0/5.2 2 0.0 0 ≤ 298. 0.0 238 95 0.0 9.5 9 6 36 5 9 •54 00 5.4 0 6. 3.6 0.0 00 3.6 0. 36. 211 21.2 2. 1 3.0 11242 24 9 33 12.121.3.100 2/ 81019.0100. 115 51 16 6 69.330.7 100 195

━ PAGE 205 ━

Evaluation 10- Balloon ¡ I-Astronomical 2-Aisciatt 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. & Insuffic info. 7-Psycho Psychological & Unknown 9 Other Total TABLE AL39 _ EVALURTION BX. SHAPE DE UNIT SIGHTINGS. FOR ALL OBJECT SHAPE NOT YEARS STATEP ALL YEARS 19,47 1948 Number Number Number 1949 Number Per Cent Per Cent Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total 35 38 73 5.6 61 4.7 138 0.0 3.8 5 12.5 8.3 20.8 0 0.0 0.0 0.0 101 41 148 16.2.2.5 23.7 8 / 9 30.8 3.834.6 63/40 103 10.1 6.4 165 2 38 38 7.6 4 14.0.0 1.4 0 00 0.0 00 1. 3 2 4 4.2 12.5.16.7 1k 32 32.765.4 0 e 92.7 3 12.5 0.0 12.5 5 8.2 2.0 10.2 2 8.3 0.0, 8.3 0,0 0.0 0.0 3 0.3 02 05 0 0 00 0.0 00 00 4.24.2 0.0 0.0 0.0 2 102 2 139 35 0 0.3 0.00.3 0 00 0.0 00 0 0.0 00 00 0.0 0,0 00 0102 163 00.163 4 15.40.0 15.4 1 29.2 0.0 29.2 6 12.2 0.0l 30.3 02 10.5 / 3.8. 0.0 3.8 0 0 0.0 12.2 000.0 0 0.0 0.0 0.0 0 139|22.3 00 223 4 23100 2 8.3 00. 8.3 1 42 56 11 6.7 23./ 11.50.0 11.5 00 00 00 4 2 8.2 2 0.0 4.1 8.2 0.0 4./ 1490134/ 624 785 21.5100. 24 2 26/92.31 1.2.100 18. 6 24/75.025.0 32 17 49 /65.3 34.1100. 0-Ballood 1•Astronomical 2-Aircraft 3- Light Phenom. 4- Birds 5-Clouds, Dust, etc. 6 Insuffic. Info. 7-Psychological &-Unknow S-Other Total Number 1950 Per Cent 19.51 Number Per Cent Number 4952 Per Cent Num ber Per Cent Certain Doubthul Total Certain Doubtfull Total Certain Doubtful Total Certain Douhtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubthul Total Certain Doubtful Total 2 18 7 0. 0 2 43.3 33.6.6 / 100 2.1 2.1 29. 33 62 49 79 14.8 4 22 30.0. 67.34.7 13 11.710.0.21.7 00 00. 00 00 00 00 10 2 2 0 6 16 21.2 12.8 34,0 48 17 15115 4.115.6 2 4 4.3 4.3 L86 46. 30 7k 11.0 1.2 18.2 2. 4.3 00 4.3 0 L 5 12 00.12 0 00 0.000 0 2 05 00 05 00 0.000 0 00 0.0 0.0 2 0 2 05 0.0 0.5 10.0 00 100 0. 4 85 0.0 85 15 0 0 75 11.9 0.0 172 0 00 00 00 2.1 00. 2.1 1 100. 020.2 0 11 18.3 0.0 18.3 14 0 14 29.8 0.0 298 102 0/02 244. 0.0 244. 3 4 5.0.17.67 5 0 5 10.6 00 10.6 22 6 28 5.3 14 67 41 13 60 18.3 21.1100.138 9 47 809) 191.100 /331 87/418/79.220.8 100. 196

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1o-Balloon ÷ 1-Astronomical 2-Aircratt 3 Light Phenom. 4-Birds 5-Clouds, Dust, etc. Insualie allo 7-Psychological 8-Unknown 9 Other Total Evaluation 0-Balloon I-Astronomical 2-Aircraft 3- Light Phenon. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. Info. 7-Psychological 8-Unknown 9-Other Total Evaluation O-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. & insuffic. Info. 7-Psychological & Unknown 9-0 ther Total Evaluation 0- Balloon ¡1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds S- Clouds, Dust, etc. A Insultic Into. 7-Psychological 8-Unknown 9 Other Total TABLE A 170 EVALUATION OF OBJECT SIGHTINGS FOR ALL YEARS BY SHAPE OF OBJECT ELLIPTICAL ALL YEARS 1947 Certain Doubttul Total Number Per Cent 1948 Number Per Cent 1949 Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Cerlain Doubtful Total Certain | Doubtful Total Certain Doubttul Total 113 83 19610.9 8.0 115 18.9 11.9 0.0 11.9 8 4.5 22.2 4 / 5 18.0 201. 11.1 8.8 5 9.5 L 14 12.7 7.1 22 12.5 17.5 34.9 8 10.5 19.9 4. 4.5 9,5 7 2634 4.8 1. 2 9.5 31.0 40.5 130 108 238 12.6. 23./ 2 5 12 18.3 1.0 14 1.5 1.4 4 30 1/ 0.7 2.9 2.4 2.4 4.8 0.0 14.3 0.4 1.1 3 0.0 0.3 2 0 2 4.8 0.0 4.8 0.0 4.8 4.8 2 0.0 0.0 00 0.0 000.0 0.0 116 16 2 2.4 0.0 2.4 0. 0.3 46 3 0 14 96 22 1.3 0,0 9.3 1.4 0.8 2.2 195 0 195 18.9 0.0 18.9 0 2 0 0 0.0 0000 0.0 0.000 0 0.0. 0.0, 0.0 6 14.3 00 14.3 4.8 9.5 0.01 25 14. 4. 4.8 9.4 1.6 0.0 1.6 2 0 0 1167, 0.0. 267 0.0 2.4 8 190 0.0 30 3.5 8 19.0 0.0 19.0 11.1 0.0 /1.1 12 34 29 06 190 3 3.2 1.6 4.8 3 12 3 114.3 3.6 0.0 14.3 0.0 3.6 7/6/317 1033 69.3 30.1 100. 35 7 42 833 16:7100 39 24 63 61.9 381 100|52|32 84. 61.2138.1100. 1950 19.51 Number Per Cent Number Per Cent Number 1952 Per Cent Number Per Cent Certain Ooubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubthl Total Certain Doubtful Tolal Certain Doubtful Total Certain Doubthul Total Certain Doubtful Total 10 14.3 • 1.4 15.1 3 12 12. 4.317.2 2 3 3 4 10.7 3.6 14.3 85 12/51 11.4 9.7 21.1 5 107. 2118 .81 45 126 109 60 16.9 10 11.4 2.9.14.3 3 10.7 0.0 10.7 205100 205 14.1 13.4 275 0 0.0 0.0 0.0 1 0.01 36 0 00 0000 36 14 10 24 1.9. 1.3 3.2 1. 0.0 3.l 5 7 01 03 10 0 0 0.0 0.0 0.0 13 00 00 0 13 18.6. 0.0 18.6 2 2 2. 9 00 19 49 2.9 271 00 271 3 4 0 9 0 0.0 3 00 0.4 0.4 4.14.3 0.0 14.3 53 0 53 71 0.0 1.1 110.0 3636 5 12 09. 011.6 9 32.1 0.0 32./140 0 140 18.8 0.0 18,8 2 / 2.9 14/ 4.3 0 0 00 00 00_15 $ 19. 20 05 2.5 63 1.12.900.10.0 100. 22 6 28 784214100 505 241 746 47.732.3 100 TABLE A14T EVALUATION 0F OBJECT SIGHTINGS ALL YEARS BY FOR SHAPE OF OBJECT, ROCKET AND AIRCRAFT ALL YEARS. 19,47 Per Cent Number 194,8 Number Per Cent 1949 Number Per Cont Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain| Doubtful Total Certain ! Doubtful Total 3 2 20 2 0 10 33 4 2.70.9 3.5 0 00. 0000 20 0 40 1.8 5.3 7.1 0 0 0 00 00 0.0 0 0 0 00. 0.0 0.0 177, 0.0 2 2 0.0 18.2 182 / 2.7 100 77.2.7 17.7 17.1, 35.8 0 1.8 09. 2.7 0 0 3 0 00 0.000 6 45.5 9.1 54.4 2 3 15.4 1.7 23.1 0. 00.00.00 0 0 0.0 0.0 0.0 0 0 0 00 00 0.0 0.0 00.00 0 0 0 0.0 000.0 0 00 00 0.0 0 0 00 00.00 0.0 8.8 0.0 8.8 0 0 0.0 0,0 10 0.9 0.9 0 0 0.0 0.0 00 00 0.0 0 000. 00. 00 00.00 0 0 1. 7 6. 2 00 62 0. 33 29.2 0.0. 292 5 0 00 00 00 0 5 1000 00 1000 7 53 09 62 0 0 0 00 00 00 / 0 / 0 9.1 0.0 9.1 2 215.4 0.0 15.4 0 0 00 00.00 / 177. 00 17 1 9100.215 0_ 5 385 0.0 38.5 0 1 91 00 91 0 0 0 00 00 00 83 30 113 73526.5100. 5 0 5 10000.0100 8| 3 11 72.727.3100|I1 2 13 /84.615.4 100 1950 Number Number 1951 Per Cent Number 1952 pervert Per Cent Per Cent Certain Doubfful Total Certain Doubtful Total Certain Doubtful Total Certain / Doubtful Total Number Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0 / 12.5 0.0.12.5 00 6.3.6.3 117 00 10 2 00.25.0 25.0 00. 0.0 0.0 1 3 33 17 5.0 0 0 00 00.00 0. 00 00 0.0 000.0.0.0 0.0 0.00.0 112.5 0.0.12.5 0 00 0.0.00 3 375 0.0 315 5 0 2 4. 8 31.3 18.8 50.0 00. 0.0 0.0 0 0 0.0 00 0.0 2 8 2 0 15 23 /3.3 25.0 38.3 / 3 33 11 5.0 0 0 00 00,00 0.0 1 0.0 0.0 1 100 17 - 17 2 125. 0.012.5 6 0 4 6.1 0.0 6.7 0 0 0000.00 0 6 10.0 0.0.10.0 4 25.0 0.0 250 15 0 2 12.5 0.0 12.5 1 6.3 0.0 6.3 3 0 15. 25.0 0.0 25.0 1 4 50 17 67 8 75.0 25.0100.12. 416/750.25.0100. 41 19 60 /68.3131.7100 197

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Evaluation I0-Balloon ¡ l-Astronomical 2- Aircraft 3-Lighe Phenoma. 4-Birds 5-Clouds, Dust, etc. 6 Insultic tufo. 7-Psychologicat B. Undenown $-Other Total wallation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4 Birds 5-Clouds, Dust, etc. 6- Insuftic. info. 7-Psychologica! B-Unknown g-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc 6-Insuffic. Into. 7-Psychological 8- Unknown 9-0 ther Total Evaluation D-Balloon 1-Astronomical 2-Aiscraft 3- Light Phenom. 4-Binds S-Clouds, Dust, etc 6 Insuffic into. 7-Psycho logicad 8. Unkoma 3-0ther Total TABLE A142 EVALUATION OF OBJECI SIGHTINGS FOR YEaRS SHAPE OF OBJECT, ALL YEARS Number Per Cent Number 1947 METEOR COMET Per Cent Number Certain Doubtful Total 194/8 1949 Per Cent Per Cent Certain ! Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Number Certain Doubifull Total Certaia Doubtful| Total Certain Doubtful Total 2 0 2 34 0.0 3.4 28 18. 46 41.5 30.5 78.0 0 00 0.0 00 00 0.0 0.0 4 8 400.40.0800 2 4 34 34 k.8 00 00 00 0012.17 0 014 20.0.60.0.800 00. 00 00 100 12. 1.2 0 0.0 0.0 0.0 / 00 111 0.0.1.7 00 0.0. 0.0 68 00 6.8 0 0 e 2 000000 0 0.00.00.0 0.0 0.00.0 00 00 0.0 0 0 0.0 0.0 00 / 00. 20.0 20.0 0 00 00 0.0 0.00.0 0.0 100 0.000 2 20.0 0.0 20.0 000 00 00 0.0 0.0 00 0.0 0 00 00. 00.0.0 0.00.000 0 0 00 0.0 00 0 00. 0.0 0.0 37/22 59 62. 37.31100. 4: 10 60.0.40.0100. 4. 1 5 20.0/80.0.100. 1950 Number 195L 1952 Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful! Total Certain Doubtful Total Certain Doubtful Total Certaia Humber Per Cent Doubtful. Total Certain Doubtful Total Certain Doubtful Tota 0 11000. 0.0 100.0 01 0 0.0 0.00.0 24. 0.0 2.4 0 0.0 0.0 0.0 / 2 50.050.0100.0 22 0 00 0,0 0.0 0 10 32537 24.4. 24.4.18.1 0 0 0.0 0.0 0.0 2 0.0 2 4. 7.9 4.9 0,0 00 0.0 0.0 0.0 0 0.0 0.0 0.0,00 2.4 9.8 2.4 0.0 00 0.0 0.0 00 0.0 00 0.0 00 0 0 0,0 00 00 0 000.0.0.0 0 0.0 00 00 0.0 0.0. 00 0 0 0.0 0.00.0 / 2.4 0.0 2.4 00 0.00.0 0.0 0.0 0.0 0.0 00. 00 00 0.00.0 2 2 0 00 0.0. 0.0 0 0 00 0.0 0.0 4.9 0.0 4.9 0.000.0.0 28.13 41. 68331.7 100. 0 1 1000. 0.0000 / 2 50.050.0100. TABLE A143 EXALUATION OBJECT SIGHTINGS FOR ALL YEARS B4 SHAPE OF OBJECT, LENTICULAR, CONICAL OR TEAROROP ALL YEARS 1947 124,8 Number Number Number Number 1949 Per Cent Per Cent Per Cent Per Cent Certain Doubtful Total Cerain Doubtful Total Certain Doubtful! Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total 24 12 14 121 19.2 2.4/21.6 12/24 0_ 0.0 0.0.0.0 1 1670.0 /6.2 5 5 55.6 0.0 55.6 4.6 46. 19.2 0.0 10.4/21.6 16.716.7 2 0 2 333 0.0 33.3 2 13 11.21 0.00.0 2 2 0.0 22. 2 22.2 27 0.0 0.0. 0.0 0.0 2 0.0 22.222.2 0 0.0 0.00.0 2108 0.8 1.6 0 13 4 22 3 00 16 1.6 13 10.4 0.0 10.4 4 3.2 0.0 3.2 0 22/24 0.0 176 1 4 24 0.8. 3,2 0 0 0 0 0. 0 2 / 0.0 0.0 0.0 0 00 0.00.0 0.0 0,0 0.0 0,0 0.0 0,0 16.7 0.0 0.016.7 0.00.0 0.0 0.0 0.0. 0.0 0.00.0 0 0.0 0.0:0.0 2 33.31 0.033.3 0.0 0.00.0 0.0 0.0.0.0 2 333. 0.0 33.3 0 / 0 00 0.00.0 0 / 1a7 0.0.16.2 1 167. 0.016.7 / 16.70.0 16.7 193/32/125744|25.6/100. / 6 833, 16.7100. 0 6100.00.0100. 0 0 e 5 0.0 00 020 0 0 0.0 0.000 0.00 00 0.0 0 0 20 00 00 9 55.644.4000. 1950 19,51 Tarter Weaten #lintel Per Cent Number 19,52 Per Cent Number Per Cent Certain Doubtful| Total Certain | Doubtful| Total Certain Doubtful Total Certain Doubtful | Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 214.3 14.3 286 2 2 0 2 33.3:00 133.3 15 2 17 165 2.2 18.7 2 00 28.628.6 0 0.0 16. 7.16.7 1 143.00 14.3 0. 0 10 6 16 11.0 66 176 0 0.0 0.01 0.0 13 11 24 14.3 12.1264 0 0 0.0 0.0 0.0 0 0 0 0.0. 0.0 00 0 0 00. 00 0.0 0 0.0 0.00.0 0 00 0.0 0.0 0 000 0.0 0,0 0 / / 00 11 1.1 000 0.0 0.0 2_ 2 0.0 . 2.2 2.2 114.3 0.0.14.3 0 0 00 0.0 0.0 2 0 2 333. 0.0 333 0 8 • 8.8 00 8.8 0 0 0.0 0.00.0 1 14.3. 0.0/4.3 114.7 0.0 16.7 0 17 18.7 00 18.2 0 00 0.0.00 0. 0.0 0.00.0 11. 4 4.4 00 4.4 1 1 11 112.2 41 3| 7/57.142.9/100. 5 11 6 833167100 68123 91 74.7/25.31100 198

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Evaluation 0- Balloon I-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic, Into. 7-Psychological 8- Unknown 9 Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G-Insultic. Into. 7-Psychological & Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuffic. Info. Psychological 8-Unknowa 9 Other Total Evaluation o-Balloon L- Astronomical 2-Aircratt 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuffic into. 7-Psychological 90ther Toted TABLE ALEY EVALUATION OBJECT SIGHTINGS FOR. ALL YEARS BY SHAPE OBJECT, ELAME ALL YEARS 194,7 1948 1949 Number Per Cent Mumber Per Cent Certain Doubtful' Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Number Per Cent Number Per Cent Doubtful Total Certain Doubtful Total Certain | Douttful Total Certain Doubtfal Total 2 32 16 3 5 1.9 2.8 4.7 11000 0.0 100.0 0.0 10.0 0.0 0 0 0.0 0000 17 49. 30.2.16.0. 46.2 0 0.0 0,0 00 24 115.175 22.6 0.0 0.0 0.0 0 0.9 10.0 0 0.0 0.0 0,0 3 0 10 43.818.8.62k 10 13.3 533/1.2 00 6.3 1.3 3 13.3. 0.00.0 6.7 20.0 0 0.00.0 0.0 0.0 0.9 0.9 0.0 0.0 0.0 0 000.0 0.0 0.0 100 0 00 0.0. 0.0 0 00 0,0 0 000.00.0 0.0 0.0.0.0 0.0, 2.8 0 0.0 2 10 3. 2.8 2 1.9 0.0 11.9 0.0 10 441 0.0 9.4 a 0.0 15.7 47 10.4 0 20 0.0 0.0 0.0 0.0 0.0 00. 0.0 0.0 0 0 0.0. 0.0.0.0 0,0 1 63 0.0 6.3 2 0 13.3 0.0 113.3 0.0 0.00.0 0.0 0.0 0.0 0.0 4 0.025.025.0 0.0 0.00.0 72. 34106/67.932/100 1 100.0 0.0 100 8 16/50.050.0100 15 40.060.0:100. Number 1950 Per Cent Number 1951 Per Cent Number 1952 Per Cent Number Per Cent Certain Doubtfui Total Certain Doubtful Total Certain Doubtful| Tolal Certain Doubtil Total Certain Doubtfull Total Certain Doubtful Total Certain Doutful Total Certain | Doubtul Total 0 0 00 0.0.0.0 0 00 0.0 0.0 4 2 5 500 12.5625 2 250 25.0 500.18 3 4 16 48 6.4 4 22 290 65 355 2 25.0. 0.0 25.0 1 250. 0.0 25.0 /1 6. 1717.19.7 274. 0 0 0 0 00 00 0.0 000 00. 0.0 0 0 0. 0 00 0.000 0 0.0. 0.0. 00 0 00. 0.000 0 1 12.5 0.0 12.5 0. / 0 0 00 0000 0 0 0 0 0 0.0. 0.0 0.0 0 / 1600.16 0 00 0.0.0.0 1 1 00 16 16 0 00 0.0 0.0 0 0 00 0.000 0 00. 0.0.0.0 0 1 16 0.016 0 0.0 0.0 0.0 0 2 32 00 3.2 1 25.0 0.0.25.0 0 7 11.3. 00113 0 0.0 0.0 0.0 6 1 7 91 1.611.3 7 1/ 51815 125100.13. TABLE A145 EVALUATION SHAPE # 75.025.0100. 47.15 62 75.824.2100. DE ОВЛЕСТ ALL YEARS OF SIGHTINGS FOR - ALL JEARS ОвлЕСт OTHER SHARES 1947 1948 1949 Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain| Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 32. 14 44 13.0 57. 187 0 00.00.0 0.0 2 0 2 13.3 0.0 13.3 / 2 41 4. 1. 8.2. 23.19 42 43 17.17.0 1. 3 20.0 40.0 60.0 0167.00 67 2 8. 25.0 8.3 33.3 28|27 55 113 10.9. 22,2 0 00 00 0.0 2 3 6.713.3 20.0 3 2 5 12.5 8.3 20.8 3 2 5 12 08 2.0 0 0 0.0 0.0 00 0 0: 0 00 0.000 0 00 00 0.0 2 4 08 08 16 0 0 0.0. 00 00 2 61 6.713.4 1 2 04 04 0.8 0 e 00. 00 0,0 0 0 e 00 00 0.0 0 0 0 00 0.00.0 0. 0,0 0.000 19 0 19 77 00 17 0 0 00 00 0.0 0 3 200. 0.0 200 3 3. 12.50.0 12.5 0 6 24 00 2.4 0 0 00 00. 00 0. 0 0.0000.00 0 0.0 0.0 0.0 54. 0. 54. 219:0.0 21.9 2 2.400 00 40.0 2 0 2 133 00/33 5 0 5 20.8 0.0 20.8 8: 6 14.32 2456. 00 0 ая 0000 0 2 2 00 133 133 1 0 1 4.1 0.0 41 176 71 24771.3 28.2100 | 3 2 5 60040.0100. 110 5 15 667/33.3100. 19 ≤ 24 79.220.8 100. 1950 195/ Number Per Cent Number Per Cent Rumber 195,2 Per Cent Number Per Cent Certain Doubttul| Total Certain Doubtful| Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total 3 4 0 3 0 7. 20.1. 34,24.1 3 2 e 0 6 10.3. 10.3: 20.6 6. 13.8 6.9.20.2 0 00 0.00.0 0 00. 0.00.0 0 10.00.00.0 3 110.3 0.0 |10.3 0 00 0.00.0 5 17.2 0.0/7.2 2 2 00 69 69 3 4. 0 21 5 0 3 3 143 0.0 14.3 20 12 32 131 7.8. 20.9 4 4.8.14.319.1 11 9 20 7.2 5.9 13.1 / 5 19.0 4.8 23.8 16 20 34 10.5 13.1 23.6 0 0 00 0.00.0 3 2. 52.0 1. 3 3.3 0 000.000 / 1 2 02 02 14 0 0.00.0 00/ 1 2. 01 01 1.4 2 95 00 95 8 0 8 52 005.2 0 0 00 00 00 le 0 6 39 00 3.9 ≤ 23.8 0.0 238 35 0 35 22.9 0,0 22.9 0 2950095 5 27331344 2/ 8/29.72.427.6 100.1 + 2/81.0 19.0 100. 106 47 153169330.7 100. 199

━ PAGE 209 ━

Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenon. 4-Birds S- Clouds, Dust, etc. 6 Insuftic. Info. 7-Psychological 8 Unknown 9 Other Tatal TABLE А 144 EVALUATION вУ SHAPE DE OBJECT _ OBJECT SIGHTINGS FOR SHAPE NOT ALL VEARS STATED ALL YEARS Number 1947 Number 1948 Number Humber 1949 Per Cent Per Cent Per Cent Per Cent Certain | Doubtful Total Certain | Doubtfui Total Certain Doubtful Total Certain Doubtful | Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtlul Total 31 28 5° 10 5411.4 15.0 0050 3 2 62. 4210412.0 8.1 20.1 4 5 200 50 25.0 5/36 9.1 22.7 0.01 0.0 00 3 0.0 13.613.6 55 31 86 10.7 6.0 16.2 2 5.010.0 13.4 00 136 8 8 5.0 3 9.1 12 4 13 1.6 10 11.6 0 00 0.0 0.0 0 0 2 9100 25 5 0 333 36/69.4 11. / 2.8 113.9 00 20 2 0.4 0.2 10.6 00 0. 00 00 00 100 4.5 45 0.0 0.0 00 2 0.4 00 0.9 0000 0 0.0 0.0 00 0.0 0.0 48 2, 116 32 0 0 / 98 0.0. 19.0. 0.0.19.0 0 $ 20.0 0.0 200 3/8 31.8 3 04 0.0 0.2. 0.6 5.0 114.22.5 0.0.22.5 25.0 0.0 5.0 0 00 00 00 5 0.0 25.0 4.5 0.04.5 5 376.21.07.2 2 2 10.0 0.010.0 0 0 00 00 00 4. 2 0 2 4 0 0.0 11./ 0.0 11.1 0 0 0.0 0.0 0.0 0.0 0.0 10.0 2 56. 0.0 5.6 408/108 516/79. 20.9100. 18 2 2090.0 10.0 100. lle 6 22 72. Г. 27.3 100. 22.14 36/k11 38.9 100. Evaluation 0-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. * Birds 5-Clouds, Dust, etc. G- Insuffic. Info. 7-Psychological 8-Unknown SOther Total 19.50 1951 1952 Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubthul Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doutful Total Certain | Doubtful | Total 2 aNO 3 43 2.2 65 0 1: 100 2.3 23 25 24 49 72 69 141 3 12 196 65 26.110 5 12 15.2 10.9 26.1 2 6 16 22213.6 363 27 16 43 78 46 12.4 2 4 45.45 90 38 22 60 10.9 63 17.2 0 0 00 00.0.0 / 1 23 00 23 5 0 5 14 0.01.4 0 0.0 00 0.0 0 0 00 00 00 2 0 2 06 00 00 0 00 00 00 - 0 0 . 0 00 00 00 2 0 2 06 00 06 6/3.0 00 13.0 4. _ 0. 4 91 00 91 73 0 73 210 00 21.0 0 0 0.00.0 0.0 1 0 123 00 23 0 1 1 00 03 0.3 10 3 10 21.7. 0.0 21.7 13 0 13 295.0.0 295 87 0 87 25.0, 0.0 25.0 3 65 00 65 4 0 4 91 00 91 21 5 26 60 14 74 37 9 46/20419.6 100. 351 9 44 79.5.20.5100. 280. 68 348 80.519.5 100. 200

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Evaluation 0- Balloon I-Astronomical 2-Aircratt 3-Light Phenom. 4-Birds S-Clouds, Dust, etc. G Insuffic. into. 7- Psychological 8- Unknown 9 Other TABLE.. AL4T EVALUATION DE ALL S/6HTINGS FOR ALL YEARS REPORTER SPEEDS OF OBJECTS, STATIONARY ALL YEARS 19.47 1948 1949 Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful) Total Certain | Doubtful, Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Totat Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 89 41 29 4 0 4 26 11 74 13 51 140.214 12.333.1 0.0 0.0 0.0 4 23.1 7.730.8 4.0: 0.0 4.0 33. 14 9.9 7.911.8 2 0.0/00.0/00.0 30.8 1.7 38.5 0.0 0,0 0.0 0.0 0.0 0.0 & 9 32.036.0 68.0 19 17 48 7.0 4.6/1.6 7 4.0 4.0 3 1.0 0.0 0.71.7 8.0 0,0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 0,0, 0.0 0.00.0 6 10 1.0 1.4 2.4 0,0 0.0 0 00 0.0 0 0.0 0.0 0.0 0.0 26 0.0. 6.2 0.0 0.0 2 15.9 0.0 15.4 112 12.6 0.2|2.8 0.010.0 00 00 0.0 0 79 19.0 0.0 19.0 0.01 0.0 0.0 720 0.0.0.0 3.11.1 1.14.8 0.0 0.0 2 7.1 7.7 15.4 0 2 1. 0 0.0 0.0. 0.0 0,0 0.0 0.0 8.0 0.0 8.0 4.0 0.0 8.0 4.0 2.0 8,0 0.0 0.0:0,0 Total 296/120416 71.2 288100. 2 0.0 0.0 2/0.0/00.0/00. 10 3 13|76.9 23.1 100. 15 10/ 211600 40.0100. Evaluation jo-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds S-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological B-Unknown 9-Other Total Evaluation 0-Balloon 2-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuttic. Info. 7-Psychological B Unknown 9-Other Total Number 1950 1951 1952 Per Cent Number Per Cent Number Per Cent Numbe Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubthus Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total B 34 00 36.4 221. 0.0/ 22.2 4 2 4 235 00 .23.1 3 13 50/23.21.714.8 36$ 5 118 11.629.4 22 18 40 45 5.3.11.8 0.0. 0.0. 0.0 i 59 5.9 11.8 22 0.01 0.00.0 0.0 17 44 8.0 5.013.0 0.0 0.0 3. 7 12 0.9 2.1 0,01 0.0 0,0 0. 00 00 00 0 00 0.0/ 0.0 0.0 0.0 0.0 • 0.0 159 0.0 0.0 4 6 10 12 18 3.0 3 9.1 00. 2.1 0.0 5.9 13.6 0.0.13.6 19 0 19 5.6 00 5.6 0 00 0.0 0.0 8 21 0.3. 24 2 2 2 2 9.1 0.09.1 5 29.4 0.0 29.4, 70. • 70 208 0.0.208 00 91 41 0 0.0 00 0.012 4 16 36 1.248 20 2 22 909. 9.1100 131 4 17 765235 100. 238 99 337 70.6 29.4:100. TABLE A148 ENALUATION OF ALL SIGHTINGS LESS FOR ALL YEARS BY REPORTER SPECOS DE OBJECTS, THAN. ONE HUNDRED MILES PER -HOUR ALL YEARS 1947 Number Per Cent Number Per Cant Number 19.88 Per Cent Number 19,99 Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubthul| Total Certain] Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful | Total 49,30 79 193. 11.8.311 L 150.0 0.0 FRe 8 2 10 276.6.9.34,17 4 5 40 16.0200 2321 44 9.1 8.317,4 0,0 0.0 0.0 2 12 11.2.241413 13 32,0 200 12.0 20 23 43 79 9.1.170 0.0 0.0 0.0 / 2 34 3.468 2 2 00 10, 8.0 3 3, 0.0 1.2 1.2 0.0 0.0 00 0.000 0.0 00 0.0 7 0.0 24 04 2.8 0 De 0.0 0.0 0 00 0.0:0.0 00 00 00 7 7.0. 0.8 2.8 8 3.1 0.0 3.1 00 0.0 0.0. 0e 0.0 00.00 0.0 00 00 00 0.00.0 L 3.4 0.0 3.4 4.0. 0.0 4.0 2 08 0.0 0.81 2 0.000. 00 49.19.3. 0.0. 19.3 0 00 0.0 0.0 1. 0 1 00 00 0.0 0 00 00 0.0 3.4 00 34 8 4 12 3.1 16.41 1 50000/500 0 3 3 0.0 10,310.3 3 / 0 3/2.0 0.0 12.0 0 1 40 0.040 170 84254/669 33.1 100. 2 0/2 1000 0.0 100 16 13 29 552448100/14 11 2556.0 44.0100. Evaluation 0- Balloon 1-Astronomical 2-Aitcraft 3- Light Phenom. 4-Birds S- Clouds, Dust, etc. 6- Insuffic. Into. -Psychologi cal 0. Unknown 9-0 ther Totat 19,50 19,07 Number Per Cent Number Per Cent Number 1952 Per Cent Number Per Cent Certain Doubtful Tolal Certain Doubtful Total Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total 6 11.23.420.6 1120.0.0.0. 200 33 23 56 201 14.034.1 3.4, 0.0 3.4 0.0 20.0 20.0 20.7 0.0 20.2 1 20.0 0.0 20.0 12 8 17 55 4.9 10.4 • 20 32 73 12.219.5 0.0. 0.0 0.0 0 0.0 00 00 3 00 18. 18 0.0 0.0 0.0 0 0.0 00 0.0 17 37 0.643 00 0.0 0.0 0.0 0.0 0.0 0.0 3.4 0.0, 3.9 2 7 3.0|1.2 4.2 0.0 0,0 0.0 _ 5/ 3.0 0.0 3.0 0 0.0 0.0 0.0 0.0 00 0.0 48.3 0.0 48.3 2 40.0 0.0 40.0 2:0 14 29 2 12 00 12 2911.1 0.017.1 3.4 0.0 | 3.4 0 00 0.0 0.0 6 30 0.6 3.6 28 29966 3.4.1100. 4 5180.0/20.0100 1/06 58/641646 35.9100. 201

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Evaluation 0-Balloon -Astronomical 2-Aircrat 3 Light Phenom. 4-Birds 5-Clouds, Dust, etc. E Insuffic Into. 7-Psycho logical 8 Underona Other TABLE AI89 EVALUATION OF ALL SIGHTINGS FOR ALL YEARS BX REPORTER SPEEDS HUNDRED ALL DE OBJECTS HUNDRED MILES PER HOUR YEARS Number Per Cent 1941 ONE TO FOUK 1948 Number 1949 Number Per Cent Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Totall Certain | Doubtful Total Certain Number Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 26 1036 8.21 3.2114 3 3 15.0. 0.0 15.0 / 6 4.321.7 26.0 2 16. 1935 5.0 6.04.0 00 0.0. 0.0 3 2 5.1 00 5.1 4 13.0 4. 3.17.3 22/35107 22.7 11.0 33.2 S.o 0.0 1.0 5 17.4 4.321.7 4 130.6 19 / 0.0. 0.3 0.3 0/ 0/ 5.0 0.05.0 0 00 00 0.0 / / 2 43 43 84 1 00 43 4,3 0 26 6 88 2 2 0 2 0.0 0.0 0.0 0.0 0.0 0.0 26 1.9 8.2 1.0 0.0, 8.0 0.6 127.8 2.5 5.0 5.0 10.0 88 0.0 27.81 11 1/ 580 0.055.0 2 3 0 2 8.7 0.0 8.7 10.0 0.0 0.0 313.0. 0.013.013 00001A 0 2 8 22 03 2.2 5.0 0.0 1:0 0 00 0.0 00 0 4 0.0 10.3 10.3 12 15.4 15.4 30.8 000000 on 0.0 0.0 00 0.0 0,0 0.0 0.0 0.0 20.Л. 00 20.5 00 00 0.0 13 33.3 0.0 33.3 0 0.0 00 0.0 Total 245|723/7/773.22.7100.19 120960 50 100 14 9 23609 391100. 29 10 39 744.25.6.100. Evaluation 0-Balloco 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological &- Unknawn 9-0ther Totad - 1950 Number Stember Per Cent Certain Doubtiul Total (Certain Doubtful Total Certain Doubtful| Total Certain Doubthe Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total 6 3 2 10 29 TABLE 5 10 29.4 0.0/219 0.0 2.9 2.9 34/85.3/14.7|100 A150 ALL Number 4 28,6 0.0 28672 147 25.1 0.0 25.1 / 210.0 7.1 2.70.0 22 12 2/4/82/43/00/142 45/87759/2411100 Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. Into. 7-Psychological 8-Unknown $-Other Total 24 98 101 7 4 2 3 EVALUATION SPEEOS YEARS Per Cent Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total 3.2 4.1 7.3 9.9.23.0 0.9 0.5 0.1 1.4 0.3 4.0 0.0 0 0.1 7.2 0.0 7.2 2 0 3 54 214 22 HOUR Per Cent Certain Doubtful Total Certain Doubtful Total 1.5 4.4 36.8 41.2 10.3 19.1 0.0 0.0 4.4 0.0 0.0 0.0 2,4 1-5 00 1.2 15 22.1 00 221 2. 2.9. 00 2.9 7 38 816 18.4100.31 19 50/62.038.0100.|341 34.68 50.0/50.0/100. Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Ligtt Phenoma, 4 Birds 5-Clouds, Dust, etc. 6- Insaffic. lato. 7-Psycholopical #-Unknown so ther Total 19 50 19-51 Number Per Cent Certain Doubtful Total Certain Doubtful Total Number Per Cent Number 1952 Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total 4 4 2L 0.0 71 2 252510 16 24 4o. 3.2 4.8 8.0 2 3.6 14/19,2 13 13 14 32.J1 2.0350 63 91/2.75.618.3 16.1 7./ 23.2 6 10.0 1.0 11.01 19 28 27 15615.9 15.5 31.4 0.0 0,0 0.0 2.1 0.0 2.5 6 1.0 0 0.0 0.0 0.0 0 00 0.0 0.0 2 .2 0.4 0.2 0.0 1.2 0.4 2 12 0.0 0.0 0.0 0.0 0.0 0.0 35- 0.2 0.0 0.2 e 35 70 7.0 0.0 25 25 712 14 0.0 36.4 0.0 32.5/45T 0 145-29.1 0.0.291 3 22 0.0 75 14 1 15 28 0.23.0 15/56 73.2.26.8100. 5 40 875125.100. 366/132 49873.526.51100. 202

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Evaluation 0-8alloon 1-Astronomical 2-Aircratt 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. Into. 7-Psychological 8-Unknowm 9-0 ther Total TABLE A 151 EVALUAIION DE ALL SIGHTINGS EOR ALL YEReS BY REPORTED SPEERS METEOR - LIKE ALL YEARS. SPEEDS 1942 1948 Per Cent Number 19,99 Number Per Cent Minten Per Cent Per Cent Certain Doubtful, Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfuf Total 3 3 0.02.0 20 000 0.0 19.0 0.0 0.0 0.0 0.0 0.0 52 10 34 9/ 393 22841 1000l 0.0 100.0 7 0.0 13 325 438.81.3 0.0. 100.0 100.0 2 12 1.2 1.3 8.0 0.e 0.0 0.0 0,0 0,0. 0.0 8.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.2 0.0 0.00.0 0.0 0.09.0 0.0 0.0 10.0 9 0.2 0.0 0.7 0.0 0.0 00 0,0 0,0 0.0 0.0 0.0 8.0. 6.0 0.0 6.0 0.0 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0,0 0.0 0.2 0.2 0.0 0.0 0.0 00 0.0 0.0 0,0 0,9 0 127 18.1 0.0 18.1 0.0 0.0 0.0 0 18.7 0.0.18.7 8.0 4 4 2,0 000.0 22 e0 2.2 0.0 0.0. 0.0 0 0.0 0.0 0.0 1.0 0.00,0 V08 41/49 /4972.5127.5100. 31 13/1000|0.0 100. 9 7//6/56.2.43.81/00. 6 6/00./00.0/100. Evaluation 0-Balloon 1-Astronomical 2-Aircratt 3-Light Phenom. 4 Birds 5-Clouds, Dust, etc. 6- Insuffic. Info. 7-Psychological 8-Unknown 9-0ther Total Evaluation 0-Balloon 1-Astronomical 2-Aircrait 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G-Insuttic. Into. 7-Psychological & Unknown 9-0ther 1950 Number Per Cent Number Doubtful Total Certain 1951 Per Cent 1952 Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain DoubHull Total Certain Doubtful Total Certain Doubtful Total 0.0. 0.0 0,0 9 2 16 56.243.8 0 00 0.0 3.131 100.0 6 0.0 310.0 30.0 30.0600 0.0 0.0 00 0.0 0 e.0 0.0 36 10 11 41 36.7 11.2 41.9 0.0 2 12 10.2 2.0.12.2 0.0 0,0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0, 0.0 0.0L 1.0 1.0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 110.0 0.0 0.010.0 8 : 1 1.0 0.0 110 0,0 0.0 0.0 0.0 0.0 0.0 0.0 2.20.0 22 1. 8.2 0.0 1.0 8.2 0,0 1.0 0.0 0.0 0.0 20.0 0 22 22,4 0.0 224 0.0 0.0 0.0 / 10.00.0100 3 0 3 31 00 31 9 TABLE 7 16 56.2438. 100. 3 10 10.030.0 /00. 80 / 8 98 81618.4100 A152 EXALUATION DE ALL SIGHTINGS FDR ALL SPEERS DE. DRUECTS, SPEED YEReS STATED REPORTED ALL YEARS Number Per Cent Number 19,42 Per Cent 19,48 19.49 Certain Doubtful Total Certain Doubtul Tolal Certain Coubttul Total Certain Doubtful] Number Terret Per Cent Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 82 55/37, 6.2 4.210.4 2 2 38. 00 3.8 3 2 10 419.513.6 12 12 5.2 0.0 2.2 241/60 401/83/2.2.3021 19 2 21 365 3.8 10.3 1/ 16 22 149 216 3611 511 83 138. 23.1. 35.8 595 122/15 237 9.3 8.118.01 119,00 19 1 9 108 1.4 12.2 15 28 7.8 4.3.12.1 1712 29 1.3. 0.9 2.2 / / 1.9 10. 8 0.0 1.9 2 2 00 2.12.2 0.0 0.0: 5 13 06 0.4,10 0 0.0. 0.0 0.0 / 1 2 14 14 2.8 0.0 0.9 / 3 4 2 2 0.9 0.1 0.2 0,3 00. 0.0 0 00. 0.0 0.0 0 0.0. 0.0 125 0/75/3.3:0.0 13.3 0.0 0 12. 1/ 21.1 21. 0 9/22.0.0 /2.2 20 0.0 0 20 8.6 3 15 09 02 11 2 0.0 9 8.6 0.0 2 38 0.0 3.8 / 1 14. 00 14 1 0 1 0.4 00 0.4 232 0 232/7.6 0,0 /7.6 4 0 4 7.1. 00 79 9 0 9 /2.2 00 12.223 0 23 49 00 99. 53. 19. 12 40 1 4 54 1000 10192 0.0 192 2 3 5 22 41 68 8 0 8 3.4 00 3.4. Total 194337211315171.1 28.3/00|50 2 52/96.238 100. 44 30 74 59540.5100.139 93 232159.9 40.1100. Evaluation 0-Balloon J- Astronomical 2-Aircraft 3-Light Phenom, 4 - Birds 5-Clouds, Dust, etc. 6 Insuffic Into. 7-Psycho logical 8- Unknown 9 Other Total 1950 1951 1952 Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 10 31| 18 156.2 68 53 40 93 72 5.4126 6 1/ 3.4 10./ 3 € 1.241 32.20.8 4.0.248 8 14 81 10.8 18.9 29 12.1 74 19.5 6 119 45 164 16.2 6•1223 10 8.1. 5.413-5 21. 89160 97 121.218 0.0 0.0 0.0 2 1.4 1.1 28 9 27 20 12 3.2 0.0 0.0 00 1 0.0. 1.4 14 3 8 0.2 0.4 1.1 0.0 34 28. 4 34 0.0 0.0 0 00 0.0 0.0 3 4 0.1 0.4 05 22.8 0.0.32.8 0.0 0.0 0.0 0 28.188 00180 12 26 12.143. 0.0 162 89 0 89 /2.10.0 12.1 1.4 0.0 1.4 3 10 10 07 14 627.13 4.0 26 351.0.0 351 142 0.142. 19.3 0.0.193 3 41 0.0 41 26 14 40 35 19 54 125/24 149 83.916.1100.5717 74 770 23.0/100.528 206734719 28.1 1100.1 203

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Evaluation 10 Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. G Insuffic. Info. 7-Psychotogical 8-Unixnorn 9-0 thos Total Evaluation 0-Balloon 1-Astronemical 2-Aircraft 3-Light Phenom. 4 Birds 5-Clouds, Dust, etc. G-Insuffic. Into. 7-Psychological & Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2- Aircraft 3-Light Phenom 4- Birds 5-Clouds, Dust, etc. 6- Insuffic. into. 7-Psycholofical 8- Uninown 9-Other Totat Evaluation O-Balloon 1-Astronomical 2-Aircraft 3 Light Phenom. 4-Birds S-Clouds, Dust, etr. G Insuffic Ito. 7-Psychological S-Other Total TABLE A153 EVALUATION. DE UNIT 5/64TING5 FOR ALL YEARS BY REPORTED SPEERS OBJECTS, ALL YEARS 1947 STATIONARY 19,48 Memoran Per Cent Number Per Cent Number Per Cent Number 1949 Per Cent Certain Doubtiul Total Certain Doubttul Total Certain Doubtful Total Certain Doubtial Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 11. 45. 116.20.6./3.133.2 0.0 0.00.0 2 2 3/6.7 8.3 250 N.6 0,0 56 36.24. 60 /0.5 7.0125 2 2.0 100.0/000 42 4 5 333 83 41.6 5 10 228 228 55.6 251 17 73 4.9/2.2 0.0 0.0 0.0 2 4 0 0.0 0 0,0 0.0 5.65.613 3 11.21 092.1 0,0 0.0 0.0 0.0 0.0 0.0 00 0.0.0.0 00.l 0.0 0,0 0.0 / 0.0 0.0 0.3 1.2 15 0.0 0.0 0.0 0.0 0.0 0.0 26 26. 7.6 0.0 9 / 10 2.6 76 0.3 2.9 0 0 0.0 0.0 0.0 0 16.2 0.0 16-7 00 0.0 0,0 0.0 0.0 62 62/8.0 0.0 18.0 0 0.0 0.0 0,0 0.0 0.0 0.0 0 0 2 2 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0 0,0 0.0 0.0 2 0.0 11.1 10 6 16 29 17 4.6 0 0 00 0.0 0.0 83 8.3146 244/00 344/70.9 29.1.100. 0 2 2 00/00.0100. 0 2 9 312/25.025.0.100.121 V.6 0.0 2/1 0.0 5.6 111. 0 0.0 0.0l 0-0 6 18/66.7 33.3/00. Number 19,50 Per Cent 1951 Per Cent 1952 Per Cent Hunhe Per Cent Certain Doubtful Total Certain Doubtful Total Number Number Certain Doubtful Total Certain Doubtlul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 6 5 6313 00 353 ≤ 294 0.0.294 3 3200 00 256 59 44 103 20.9 18.5361 0 0.000 0.0 2 3 167 83 250 20 15 35 71 5312•1 00 00 00 e 0 2 0 00 0.0 0.0 0.0, 0,0 0.0 0 2/1.80.0 1.8 / 5.9, 0.0 5.9 1 0 0 2 83 83 16.6 23 15 38 8.163 13.4 0 0.0 0.0 0.0 3 2 14 11 2.5 0 00 0.0 00 0 0.0 0.0 0.0 4 0 0.0 0.0 00 8.3 19 50.414 11.8 1 83 0.0 0 00 0.0 0.01 7 19. 6.7. 0.0 6.7 2/128. 00 11.8 3 25 0.4 2.9 3 200, 0.0 25.052 0 55 194 0.0 19.8 1 00 19 59 0 00 0.0 00 9 4 13 32 14 46 16 TABLE 12941/5.9100.10 2/2/83.316.2 100.197 86 283 696 30.41100. A154 EVALUATION UNIT SIGHTINGS FOR ALL YEARS _BY REPORTED SPEEDS OBJECTS, LESS THAN ONE HUNDRED MILES DEE HOUR ALL YEARS 19,47 1948 1949 Humber Per Cent Number Per then Number Per Cent Humhat Per Cent Certain | Doubtful Total Certain Doubtful Total (Certain Doubtfel Tolai Certain] Doubtful Total Certain Doubtful Total Certain Doubtiul Total Certain Doubtfull Total Certain Doubtful Total 42.22 7 22.913.2361. 150.0 0.0 150.0 243.1 53 47.4 2 35.6 11.116.7 20 11 3/ 9.8.4.415-2 0 0.0 0.0 1821 39 88 10.219.0 0.00.0 0.0 52/1 1.386.4 6 2 8 33.3 11.1 44.4 2 5.3. 53/0.6 3 2 1,0 11. 1.1 0015 1.5 0.0 0.0 0.0 0 80 0.0 $ 1.5 05 2.0 0 0.0 0,0 0.0 0 0.0 0.0 0.0 0.0 0000 0.0 0 0.0 0.0 0.0 2 05 05 1.0 0 00 0,0 0.0 0100 00 0 0,01 0 0.0 2.0 0.0 0.0 0.0 0 00 0.0 00 5. 6 0.0 00 0,0 / 516 2 33 8 62.9 2.9 210 00 101 00.0 0,0 0,0 0 00 0.0 0.0 0 00 0.0 0.0 33 161. 0.0 1/ / 0.0 0.0| 11 39 45 5.4 0 00 0.000.0 1 5.3,0.0 53 3 3/6.7 0.0 16.7 2 2 00 10.5 1081 1 5.6 0.0. 5,6 138<7.205 <7.205/673/32.2100. 2 /ons 0.0 100 14 5 19 73.224.3100.12 6 / 18/66733.3100 Akesher 1950 Per Cent Number 1951 Per Cent Number 1952 Per Cent Number Per Cent Certain | Doubttul Total Certain Doubtful Total Certain Doubtful | Total Certain Doubtful Total Certain | Doubthul| Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtful | Total 4 / 521.15.3 26.4 1 25:0 0.025.0 32 23 55 224/6.138.5 / 4. 3 0.0 5 5.3 1 00 25.020.0 5 263 00 263 / 25.0 0.0 25.0 11 2 16 63 7.91.2 18.29 7.712.6203 0.0 0.0 0 0.0 2.00.0 3 00 21 21 6.0 80 0.0 0 0.0 00 0.0 3 4 21 07 28 00 00 0.0 0.0 0.0 0.0 5. 3: 0.0 5.3 0 L 0.7 0.71 0.0 0.00.0 429 00 3. 0.0 00. 0.0 6 31.6/0.01316 0.0 0.0 0.0 2 2 19 00 1.4 250 0.0 2501 22 • 23/5.4 0.0 /5.9 0.053 0 0.0 0.0 0.0 / 6 35 0.2 4.2 181 1 19 202131001 3 4175.0/25.0100. 189 54 143 62.2 318/08. 204

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Evaluation 0- Balloon 1• Astronomical 2- Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 16- Insuftic, Info. 7-Psychological 8-Unknown 9-Other Total Evaluation 0-Balloon -Astronomical 2-Aircraft 3-Light Phenom. 4- Birds 5-Clouds, Dust etc. G- Insuffic. Into. 7-Psychological 8-Unknown 9-0ther Total Evaluation 10-Ballcon 1-Astrosomical 2-Aircraft 3-Light Phenom. 4- Birds 5-Clouds, Dust, etc. 6- Insuffic. Info. 7-Psychological 8- Unknowm 9-0ther Total Evaluation 0- Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. € Insuffic, into. 7-Psychological 8-Unknown 9 Other Total TABLE A 155 EVALUATION OF UNIT SIGHTINGS _ FOR ALL YEARS BY REPORTER SPECOS ALL EARS OBJECTS, ONE HUNDRER TO FOUR HUNDRED MILES. PER HOUR Per Cent Number 1942 1942 1949 Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Tolal Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 21 16 64 29 8.0 3.0 1/20 3 3 18.8 0.0 1808 4 55.0.20.0200 2 33 6.1 6.412.5 118.05.0 2 38.7 0.0 87 0,0 0.0 00 4 20.0 2 00 8.7. 8.7 27 91 24.2.10.224.5 16.2 0.0 6.8 4 20.05.0 25.0 4 6179 8.2261 5. 1.5 0.4 0.4 1.9 0.4 162 0,0 0.0 0.0 0.0 6.7 50 0.0 5. 0 2.0 0 0 00 00 0.0 0.0 0,0 5, 0 0/0.0 0,0 2 0,0 0.8 0.9 0 0.0 0.0 1.0 0.0 0.0 0,0 0 0.0 0.0 0.0 25 62 231 9.5 0.0 / 6.3 0.0 10.0 0.0 10.0 8 348 0.0 134-8 8. 2.3 9.5 0.8 3.1 6.2 2 62 62 124 0.0 0.0 0,0 0 0 0.00.0 0.0 62,23.1 0.0 235 2.2 0.4 3.1 7,43.81 0.0 43.8 2 10.0 0.0 10,0 $ 21.70.0 21.2 62 0.0 0.0 0,0 0. 0 0 0.01 0.0 0.0 205 59 264177.722.3 108. 16 93.8 6.22 100. 13 1 20 65.035.0100. 19 4 23/826/17.4/00. 19,50 Number Per Cent 19,57 1252 Number Per Cent Number Per Cent Number Per Cent Certain | Doubtful Totai Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtful| Total 24.0 4.08.0 6 0 3 3 40 12.016.0 2 2/04.0.0 /5.412 3 15 1.2 1.8. 9.0 222 77 15.411 10/2/66 6.0.126 624.0. 0.0 24.0 530877385411x3 68 269 13.8 40.2 0 00. 0.010.0 0 00 00 00 2 312 0.6 1. 8 0 0.0 0.0 0.0 0 000 00 0.0 0 0•0,0. 0.0 0.0 00 0.0 0.0 0 0.0 0.e 0 1.2 1.2 20.0 0.0. 20.0 0 00 00 20,0 0.0 0.0 95.4 0.0 4.0 00 40 0.0 0.0 4 24.0 0,0 24.0 3 3 23.1 0.0 4 / 52.4 0.6 3.0 0.0 23/32 0 39 234 0.0 234 100 40 40 1 77 0.0 27 5 0 313.000 30 120 5 25 800 20.0100. 2 1 3 846.15.4 100. 127 40 162 760 28.0100 IABLE A156 EVALUATION DE UNIT SIGHTINGS EOR ALL YEARS REPORTER SPEEDS OF OBJECTS, OVER FOUR HUNDRED MILES PER HOUR ALL YEARS 19,42 1948 1949 Mir ten Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain | Doubtfull Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfut Total 20 3.3 3.3 12.9 8.0 2.9 3 29 2.9 5.8 0.0 9 1.9 84 61 5138 10.0 23.80 4 1017.6 1.8 29.4 4 6 10//18/7.6294 21 23 3.8 40.444.2 8281 168 14313.322.6 2 2 3 101 1.6 20.0 5.9 0 5.% 4 88 29 11.2 11.5 9.6211 1./ o.5 00 0.0 0.d 2 5.988 00 0,0 1.0 3 2 0J 0.3 32.9 5 1. 8 0 0.0 0.0 0.0 22.9: 29 5.8 0.0 1.9 0.0 0.0 0.0 0.0 0.0 1.9 0.0 48 0 0.0 48 7.9 0.0 29 2 2 1.9 0.0 5,9 4 9 18.0.0 0.0 0.0 0,0 0.0 0.0 111.8 9.6 0.0 3 10 0 2.6 2 1.1o5 1 0.0 2.9 2.9 0 00 0.0 0.0 11.9. 0.0 19 1$3 26 4159 43 0.9 5.8 153.25.1 0.0 25/13 0 1 3 38.2:0.0 38.2 • 7206 0.0 20.0 9 917.3 0.0 123 5 14.70.014.2 1 2 29 29 5,8 1 19. 0.0 12 1435174.609/714.28.6100.22 7 34 794,20.6 100.2212 34 64.235.3108 24 28 52 46.253.8 100. Number Per Cent Number 1951 Per Cent Number 1953 Per Cent Number Per Gent Certain Doubtful Total Certain| Doubtful Total Certain Doubtfui Total Certain Doubtful Total Certain Doubthud | Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total 3 2 37.9 10.0. 29 1, 3.4, 0.0 14 18 32 3.3, 4.316 6 1.3 10.515.8 1/ 18.4 10.5 18.9 10 4 3.4 10 34.50,0 34,9 60 26 8614.2 6.120.3 6 /3.8 6. 9 30.7 0.0 / 3.У 6763/3415.915.9318 0.0. 0.0 3.4 0.0 6 12 0.2 1.4 0 00. 0.0 0.0 0.0 0,0 0.0 2 0 2 25 00.05 0. 0.0 0.0 8.0 0.0 0.0 0.0 3 7.9 0.0. 7.9 0.0 0.0 0.0 0.0 34 000 0.0. 0.0 0 34 8.1 0.0 8.1 00 0.0 0.0 3.4 3.4 6 1 7 1.4,0.2 1.6 11 289 0.0 28.9 7 24100 24.1/06 0 10625.1 00 25.1 2 53 53 10.6 310.3 0.0 10.314 15 3.3, 0.2. 3.5 2 2810 38 13.226.3/08. 26 3 29/89.210.3 100.308 114 422/73.022.0 /00. 205

━ PAGE 215 ━

Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds S-Clouds, Dust, etc. G Insuffic, Into. 7-Psychologi cal 8-Unknown 9-0 ther Total TABLE_ A157 EVALUATION UNIT SIGHTLAGS FOR ALL YEARS BY REPORTER SPEEDS OF OBJECTS METEOR - LIKE SPEEDS ALL YEARS 1942 1948 1949 Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubitull Total Certain Doubtful Total Number Per Cent Certain Doubtful Total Certain Doubtful! Total Certain | Doubtful| Total Certain | Douttful Total Certain Doubtful | Total 2 00 1 6 1.6 0. 00 00 00 0.00.0.0.0 D. 00.0 00 0.0 48 31 19393 25444.2 1100.0 00 100.0 2 8 49 16 6.5 0 0. 00 0,0 0.0 6 0 0 6 12 42.9 42.985. 0 00 00 6.0 0 00 00 0.0 e 0.0 0.00.0 0 00 0.0: 0.0 0 0 6 6 00 100.0 100.0 0 0.0 0.0 0.0 0 00 0.0 0,0 10.0. 0.8 0.0 0.0 0.0 0 20 00| 00 0.0l 0.0 0.0 L 9 18 3 L 0.8 1.8 0 02. 08 9 7.4 0.0 0.00,0 0 00 0.0 0.0 00,0 00 0.0 0.0: 7.4 0,0 0.0 0.0 0.8 1.8 000 0.0 0.0 0 0.0 0.0 00 00 1 0.0 0.0 0.0 18.14.8 0 0 00 pe 0.0 00.0 0.0. 1 0,0 0.014.8 0 0 0.0 0.0:0.0 3 2.5 0.01 2.5 2 2143. 0.0 143 0 00 00 0.0 00 0.0 0.0 0 0.0. 0.0 0.0 0 0.0 0.0 0,0 85/37/22,697/30.3100. 0 / 100.0 0.0100. 8 6/4/570 42.9100.1 6 6 0.0 1000 100. Evaluation 0- Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. I4-Birds 5-Clouds, Dust, etc. G- Insuffic. Info. 7-Psychological 8 Unknown 9-0 ther Total Evaluation 2O-Balloon 1-Astronomical 2-Aitraft 3-Light Phenom. 4-Birds S-Clouds, Dust, etc. € Insuffic. Info. 7-Psychological B. Unknown 9Other Number 19.50 195% 1952 Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful, Total Certain Doubtful Total Certain Doubtlul Total Number Per Cent Number Per Cent Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtiul Total 9 0 00 0.0 0.0 0.0 0.0 0,0 2 2 00 26 26 5 11 <43 35.1100.0 3 6 22.2. 33.355.5.. 0 30 "' 0.0 0.0 0.0 0 00 00 0.0 6 4138.5/4.1.526 8 77 26103 00. 0.0 0.0 0 0.0 0.0 0.0 e 0 0 0 0.0. 0.0 0.0 0.0 0.0. 00 0 0.0 0.0 0.0 0. 1 00. 1.3 13 0 00 0.0 0.0 0 00 00 0.0 / / 1.3 0.0 1.3 10,0 0.0 0.0 / 11.1 00 1.1 8 10.30.0 1.3 0 00 0.0 0.0 0. 00 0,0 0.0 0 / 1 00 13 13 00.0 0000 222.2 0.0 722.14 114179 0.0 12.9 6 00 00 00 110 1 11.10.0 11.1 0 2 26 0.0 26 + 14/64.3/35.7/00. 6 3 9 66.733.3400 161.17|78/782|21.811001 TABLE A158 EMALUATION OF UNIT SIGHTINGS FOR ALL YEARS BY REPORTED SPEGOS OF ALL YEARS OBJECTS, SPEED NOT STATER 1942 1948 1949 Number Per Cent Certain Doubtful Total Certain Doubttul Total Number Per Cent Number Per Cent Number Per Cent Ceriain Douhtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total 69 49 11868 4.9. 11.7 2 248 0.0 X.8 2 3 5 3.2 5.6. 9,3 0 7 59 0.0 5.9 179 /12 29/177 111.28.8 92 12 2 14 284 48 334 7 12 19/30 22.235.2 21 44 6511.6 31.0,54.6 87/79. 9.1 8.617.1 0 1 24 0.0 24 / 8 13.0 19 14.9 9 5.912, 260 17 11 28 1.7 1.12.8 1 24 0.0 2.4 0 1 0.0 1.9 1.9 0 - 0.0 0.0 00 7 5 120.7 0,5. 12. 0 0 0. 000.0 0.0 0 0 2 1.9. 1.9 3.8 2. 2 170.017 0 00 0.0 0.0 0 _0 0.0 0.0 0.0 0 0 00 00 00 00 0.0 147 0. 0.0 0.0 0 14714.6 0.0. 19.6 9 0 9 214 0.0 214 9. 16.20.0 167 12. 17/43 0.014.3 12 2 14 12 0.2 14 2 0 0.248 00 8 1 0 1 1.9 0.01.9 1 1 08 0.0. 08 169 0 162 16.70.0.1674 _0 4 95 00 96 4 0 47.400 7418 0 14 118 00 118 38.14 52 38 14 52 2. 2/4 00 214 2 3 5 32 26 9.3 4 0 4 3.4 0.0 34 Total 17302801010/723 21.7100.40 2 42/95.2. 4.8 100. 33.21 54/611 38.9100. 73 46119/613 38.7.100. Evaluation 0-Balloon I-Astronomical 2-Aircraft 3-Light Phenom, 4-Birds S-Clouds, Dust, etc. € Insuffic Into. 7. Psychological 8- Unknown 9 Other 1950 Number Per Cent Number 1951 Per Cent Number 1952 Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful| Total Cerlain Doubtful Total Certain Doubtful Total Certain Doubttul Total 8 24 12 3 11 8,3 3.1 11.4 6 30 25 0 6.3 31.21 2 3 + 29 43 72 48 40 88 76 6.414.0 6 8 14 8.6 11.4 200/09 70 14917.3 6.4 23.21 2 19/25 73 19.81 6 4 10 86 5 7 143 v9 23 132 94 11 6 210 0 0.0|0.0 0.0 / 2 14 44 2815 0 0 0.0 0.01 0.0 9 24 2.4 1.4 3.8 1 06 05 11 0.0 0.0 0.0 1 1 00 14 19 2 5 00 00 20 0 00 0.0 00 0 0 15/5.6. 0.0/156 12 0 12 /7/0.0 12/ 85 0 95 13.5 00/35 0 0 0.0 0.0 0.0 0 1 1.4 0.0 1.4 9110.314 171 1121 00 17722 0 22 314 00 314 108 0 10917.2 0.0 17.2 3 4 3110 4 3 0 3 43 0.0 75 17 10 27 27 16 4.3 Total 19/11/96 82317.1 100. 53|17.70 75.1 24.3/00.1452 177/629/729 28.11100. 206

━ PAGE 216 ━

Evaluation 0- Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuftic. Into. 7- Psychological 8-Unknown 9 Other Total Evaluation o-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. Info. 7-Psychologica) 8-Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft *3-Light Phenom. i4-Bitds 5-Clouds, Dust, etc. 6- Insuffic. Into. 7-Psychologicat [B-Unknown 9-Other Total Evaluation 0- Balloon 1-Astronomical 2-Aircratt 3- Light Phenom. 4-Birds §-Clouds, Dust, etc. 6 Insuttic, Into, 7.Psychological 8-Unlurown 9-0ther Total TABLE A 159 EVALUATION OF ORUECT SIGHTINGS FOR ALL YEARS REPORTEA SPEERS 0F OBJECTS, STATIONARY ALL YEARS Number Per Cent Number 1947 Per Cent Number 1948 Per Cent Number 19,49 Per Cent Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubttul Total Certain Doubtful Total 631 39 102.20.91 33 53 109 12.9338 0 20 0.0 00 2 3 2 2 3 3 200 100 30.0 ! 6.2 0.0 62 6612.3 00 1100.0 100.0 300 00 30.0 8. 31.2 18.850.00 35 4 1.6 4,0 1/1.6 0.00.0 0.0 0.0. 00. 00 2 6.2 6.2 R.F 1.3 0,7 2.0 0.0 0.0 0,0 Q. 8.0 000.0 0.0 0,0 0.0 0.0 0.0 00 0.0 4 0.0 13 0.0 00 0-0 0.0 0.0 0.0 0,3 0.0 0.0 0.0 00 1.0 00 0.0 0.0. 0.0 24 24 7.9 16 0.0 2.6 0.3 7.9 0.0 0.0 0.0 2 2 200.2.0. 200 2 12.5 1-012.5 8 9 2.9 0.0 0.0 0.0 00 00 0.0 172. 0.0 175 6.0 0.0 0.0 0 0.0 0.8 0.0 22 0.0 602 115 3.3 1.7 5.0 0 0 0.0 0.0. 00 / 2 100100 200 2/2.5 0.0/2.5 0 0.0 0.0 0.0 219/83 302|72.5127.5100. 2 2/0.01000/100 8 2/10/80.0 200100. 12 4 16/750 20.0/ 00 1950 Number Per Cent Number 1951 1952 Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful) Total Certain Doubtful Total Certain Doubtful Total 5 312, 0.03.2 3 3 22.3 0.0 27.3 312. 0.0 312 2 3 18.2 9.1 27.3 0 0.0 00. 0.0 0.0 0.0 9.1 0.0 9.1 0.0: 0,0 0.0 0.0 18 21 4 38 90 21115.4365 14.32 73 5.213.0 11 32 85 45 /3.0 2: 6 16 0.8 2.4 0.l. 0.0. 0.0 0.0 0,0 0.0 0. 0: 0.0 0.0, 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.012.5 9.1 4. 5. 0.4 1.6. 2.0 2125 9.1 0.0 .0 17 6.9 0.0 - 6.9 / 6.2 0.0 6.2 0.0 0.0 0.0 / 2 2125 0.0125 3 22.3 7 24 0.4 2.8 0.0 27.3 46 0 46 18.6 0.0 18.6 1 00. 62. 6.7 00 0.0 0.0 93 12 36 12 4.8 15 / 16 931 6.2.100.110 1111. 90.9 9.1 Vas. 114|73 2471.704/29.6100. TABLE. AL60 EVALUATION OF OBJECT SIGHTINGS FOR ALL YEARS REPORTED SPEEOS OF_ OBJECTS, LESS THAN. ONE HUNDRED HOUR ALL YEARS Number Per Cent 1947 MILES PER 1948 1949 Number Per Cent Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Number Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 43 . 257 68.23.9 13.937.8 / / 540 0.0 7 375 6.243.7 2 3 16 26 8.9 4 18.8 7.1 14.3 21,4 10 56 11.0 00 0.0 0,0 6.2.25.0 6 35:2 7.1 19 32 1.0 2 42.8 13 72 10.611.8 0 0,0 0.0 6.2 6.2 124 2 2 0.0 14.3.14.3 3 3 0,0 1.7 0.0 0.0 8.0 0.0 0.0 4 0.0 0.0 1.7 17 0.0 0.6 2:3 0.0 0.0 0.0 0. 0.0 0.0 0.0 0.0 0.0 / 2 12 0.0 0.0 00. 00 6 0.6 0.6 0.0 0 0.0 0.0 0.0 3.3 0.0 33 1.0 0.0 00 0.1 7.1 2 2 0.0 1! 0.0 0.0. 0.0 e 0 80 00 200 0.0 2/ 26 26/4.4 0.0 14.4 0.0 00. 0.0 1 6•3. 00 62 8 3 11 4.4 1.7 6./ 50.0 00:50.0 2 2 00 12.512.5 118 62/80 65634.4101 21 21000 00/100. 11 5 16/68.731.1100. 0 / 95 00 0.0 0.d 1.1 10.0 7.1 1 1.1 0.0 14/64.3/35.2 108. 1950 195% 1952 Number Per Cent Certain Doubtful Total Number Per Cent Number Per Cent Per Cent Certain Doubtful! Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Cerlain Doubiful Total Certain Doubiful Total / 5 23.Г 5.9 29.4 1.9. 0 25.0 00. 250 0.0, 5.9 00. 25.0 28.0 3 3 12.6 0017.6 25:0 0.025.0 0 0.0 0.0 l 0.0 0.01 0.0 0.0 2.0 0.0 0.0 0.1: 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 S.9 0.0 6.9 00 0.0 0.0 0.0 0 0.0 00 0.0 0.0 0.0 3N.3 0.0 35,3 25:0 0.025.0 30 2 3 4 17 21 51 23.616.5_201 14 16 3 24 5.5 110 63.12.618.9 3 0.0/ 24 24 / 4 2 2.4 0.8 3.2 0.8 4 3.1 0.8 1.6 0.0 3/ 21.6 0,0 1.6 00 1713.4. 00134 5.9 0.0 5.9 0.00 0.0 6 3.9. 0.8 42 16 117 94/ 59/00, 3 + 760/25.0100. 77/50 122 606 394 100. 207

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Evaluation ir Astrononical 2-Aircraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. 6- Insuffic. Info. 7-Psychological 8-Unknown s Other Totat Evaluation 0-Balloon J-Astronomical 2-Aircraft 3-Light Phenam. 4 Birds 5-Clouds, Oust, etc. 6- Insuffic, Info. 7-Psychological 8- Unknown g-Other Total Evaluation 0- Balloon 1-Astronomical 2-Aircraft 3-Ligh! Phenom. 4-Birds 5-Clouds, Dust, ec. G Insuffic. into. 7-Psycbological 8-Unkrown 9Other Total Evaluation O- Balloon i 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. f-Insuffic. into. 7-Psycha logical 8. Unknown sother Total TABLE . A 161 EVALUATION SPEEOS DE ORJECT SIGHTINGS FOR ALL YEARS BY REPORTED OBJECTS, ONE HUNDRED TO FOUR HINDRED MILES PEB HOUR ALL YEARS 1947 Number Number Number 1948 1949 Per Cent Per Cent Per Cent Namber Per Cent Certain Doubtfull Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Dodottal Total 20 8 12 28 3 20.0 0.0 1200 4 5.0.200 250. 2 10.5 0.0 1105 13 25 8.4 3.311.9 5.01 5.4 10.4 5 2 0 0.0 0.0 0.0 15.0 5.0, 20.0 105|10,5 58 * 6 84 1243 10.935.2 0.0 0.4 6.2 6.2 6.7 4 5.0 200 50. 25.0 211 10.5 316 3 4 1.3 0.0 0.0' 0.0 50 0.0 0.0 0.4 0.4 6.7 5.0 0,0 0.0 0.0 0,0 5.0 00 0.0 0.0 22 6 58 2 2 0,0 0,8 50 22 8.0 0.8 0.0 0.0 0.0 0.0 0.0 0.0 D.0 9.2 8 9.2 0.0 6.2 0.0 26.3 0.0 26.3 58. 2.5 0.8 3.3 0.0 10.0 0.0 10.0 2 6.2 13.4 0.0 0.0 124.3 0.0. 24.3 6 6.7 00. 0.0 0.0 0.0 1 2.9 0.0 40.0 y00 2/1 29 0,0 10.0 00 110.0 0.0 6.10.0 6.? 0.0 0.0 0.0 0.0 0.0 0.0 186/53 234 778 272100.14 115/93.316.21100 13 7 20/65.135,01100. 15 4/19 78.91 21.1 100. 1950 1951 Number Per Cent Number Per Cent 1952. Per Cent Prember Per Cent Certain Doubtful Total Certain | Doubtful Total Certain | Doubtful| Total Certain Number Doubtful Total Certain Doubtful|" Total Certain| Doubtful Total Certain Doubtful Total Certain | Doubtiul! Total 2 3 45 4.5 900 2 2182 0.018.2 /1 3 14 72. 2.0 9.2 4.5 9.113.6 2 919.1182 7 46 1.6 92 5 22.2. 0.0 23.7 4 21.3 91364.4122 0.0 0.0 0.0 0,0 0.0 0.0 63/27.0 14541.5 0.0. 0.0 0.0 2 0.1 0.7.1.4 0.0 0.0 00 0.0 0.0 0.0. 00 0.01 0.0 2 0.0 п.0 0,00.0 15.9 1.3 1.3 5 22.2. 0.0.22.71 0.00.0 0.0 9 0.0 5,9 / 4.50.0. 4.5 0.0 0.0 0.0 5 2.6 0.1 3.3 6 213. 0.022.3 2 18.2 0.0.18.2 38/25.0. 0.0/25.0 0 0.0. 0.0|0.0 1 91 0.0 9.1 5 3.3 00 33 19|3. 22/86.4 13.6100 1 211 8/818.2.1001116 36/521763 23:1 100 TABLE A162 EVALVATION OF OBJECT SIGHTINGS FOR ALL VEARS SPEEDS OF. OBJECTS, OVER BY REPORTER LEOUR HUNDRER ALL VEARS 1947 Number Per Cent Number Per Cent 1945 MILES DER HOUR 1949 Certain Doubtful Total Certain, Doubtful Total Certain Dosbttul Total Certain) Doubtful Total Certain Number Per Cent Number Per Cent Doubtful| Total Certain Doubtful, Total Certain Doubtful Total Certain Doubthul| Total 18 63 18. 36 3.31 3.3 6.6 3.2 0.0 3.2 2 3.030 60 0 0 0.0 0.0. 1.0 49/12 11.5, 8.9 20.4 4 9 16.1 12.929.0 3 9 9.118.2 27.3 16 4.2 372 419 87 75152/5.0 /3.728.2 2 2 00 6.5 6.5 3 2 18 4 9. 13.0 k.1 6 3 0.0 3 11 14.0 11.625.6 7 1013 05 18 (1 91 00 0.0 3 0.4 0.9 0.0.. 8.0 3.0 00 0 10.0. 0.0 0 00. 2 3.0l 3.0 0 0.0 3.3 2.3 0.0 0.0 0.0 76 18.4 0.0. 8.4 2 0/ 0/ 0.0 0.0 0.0 0.0 0.0 6.0 0 0.0 0.0 6-5 3 0.0 2. 6N /2.1 0.0. 12.1 3 10 13 05 18 01 0.0 10. 2.0 7.0 0.0. 3.2 3.2 145 23. 0 1 45 265 0.0 26.513 0 13.41.9 0.0 41.9 ON 0 0 0.0 0.0 0.0 / 12,3 00: 23 1 21.2 0.0 2/3 8. 0 4, 22 42 0.2 49 3.0 9.2 0.0 9.2 / 8 18.6. 0.0 18.6 2/3.0 3.0 60 23 00. 2.3 394154 54817/9/281100 241 1 3/ 714 226/100 21 12 33 636 36.9/00.21 2122|43 48851.2100. 19 50 Per Cent 1951 Number Per Cent 195₴ numbe Number Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Number Certain Doubtful| Total Certain Doubtful| Total Certain Doubtfull Total Certain Doubtfuf Total 3 3 1 8.6 00, 8.6 0 4.2 0.0 4.2 12.1729 3.1 4.5 7.6 / 2,9 11714.3 7 29.2 00 19.2 45- 4 9 19 64 11.8 5.0 K6.8 14.3 11.4.25.1 = 16.2. 16.233.0 0.0 00 0.0 / 4.2 42 20.964 62 126 16.8 0.0 0,0 4.2 6 1.3 0.31 16 0.0 0.0 0.0 0.0 0.0 0 0.0 0,0 0.0 2 2 05 0.0 0.0 0.0 0.5 0.0. 0.0 3 0.0 10 3 86 00 8.6 0.0 0.01 34 8.9 0.0 8.9 0.0 0.0 0.0 1.0 4.2 0.0 1/ 4.2 34 / 2 1.6 1.9 3/4.00 314 2. 29.2 0.0 292.99 0.3 99 219 0.0 2 2 5.25.7 11.41 28.3 0.0 25,9 8.3/4 1 15 3.2 0.3 4.0 25 10 35 714 286/00 221 2 24 91783 108. 281 101 382 736 264/01. 208

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Evaluation 0- Balloon | 1- Astronomical 2-Aircraft 3-Light Phenom. 4-Birds s-Clouds, Dust, etc. G Insuffic, Info. 7-Psychological 8-Unknown 9 Other Total TABLE AL6З EVALUATION OF OBJECI _ SIGHTINGS FOR ALL YEARS BY REPORTED SPEEOS OBJECTS, METEOR - LIKE SPEEDS ALL YEARS 1947 - 1948 1949 Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Tolai Certain Doubtfull Total Certain Doubtful Total Certain] Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total 2 35.24 2 00 20 2.0 0,0 0.0 0,0 0 0.010.0 0.0 59 35.124.2596 46.238.5 84.1 2 2.0.0. 100.0 100.0 6 8 61 20 8.1 0.0 0.0 0.0 0.0 0.0 0 0.0 00 10.0 0.0 0.0 0.0 0.0 0.0 0.0 20 10 1.0 0 0e 0.00.0 0.0 0.0 1.0. 0.0. 10 N 0.0 8 0.0 0.0 10.0 0.0 0.0 0.0 8100 8.1 00. 10. 10 3 • 0 16 162 00 16.2 3 3.0 0.0 3.0 010/00 0.0 0.0|0.0 0.0 0.0. 0.0 0.0 0.010.0 0.0 0.0 15,4. 00/54 0.0 0.0 2 0.0 0.0 0 00. 0000 00 0.0 0.0 169.30.99 697|30.3100. 8/5 13/6/538.5100. 2 2 0.0 100.0/00. Eval varion 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 25-Clouds, Dust, etc. 6 insuftic. Into. 7-Psychological &- Unknown 29-0 ther Total Fyaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. Into. 7-Psychological B-Unknown 20 ther Total 1950 render Per Cent 1951 Number Per Cent Number 1952 Per Cent Minner Per Cent Certain Doubtful Total Certain | Doubtfull Total Certain Doubtful Total Certain Doubttul, Total Certain Doubtful. Total Certain Doubtful Total Certain Doubtful Total Certain Doubthul| Total 0 10 0.0 0.0 0.0 0.0 0.0. 0.0 2 0.0 3.0 3.0 55. 3 4 12.5131.5 500 23 10|33 34.3 14,9 49.2 0.0 0.0 0.0 2 9.0 3.0. 12.0 0.0 , 0 0,0 0.0 0.0 0.0 0.0 00 1.5 15 0.0 0.0 0.0 12.5 0.0 12,5 ? 0 7 0.0 1.5 10,4 0,0 10.9 0 00 0.0 0.0 0.0 1.5 15 0.0 0.0 0.0 2 25.0 0.0 25,0 12.179.0.0 179 0.0 0.0 0.0 1 12.5 0.0 /25 2 30. 0.0 3,0 5 4 9 554 444100. 5 3 8 162.5137.5 100. 51 16 62 761.23.9.100. TABLE A 164 EVALVATION OF OBJECT SIGHTINGS FOR ALL YEARS BY REPARTEA SPEEDS OF OBJECTS, SPEED NOT STATED ALL YEARS 1942 Number Per Cent Number Per Cent Number 1941 Per Cent Number 1999 Per Cent Certain Doubtful! Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain] Doubtful Total Certain Doubiful | Total 63 40 103 115 7.6 48 124 2 14.9 004.9 2 3 5 3.9 5.9 9.8 7 7 16 0.0 7,6 89 204 138 10.7 24.5 3 5/036.9 11.2 7 10 17 /3.7. 19.6 33.3 17 3/ 48 18.5 33.2 52.2 83 25158 10.0 16 9 125 9.0.19.8 3.4 0,0 3.4 1 8 13.2. 2. 0.252 2 2 9 76 22 9.8 1.9 11 3.0 3.4 0.0 5 3.4 10.0 2.02.0 0 0 0.0 00 0.01 11 0.7 8.6 13 8.0 0.0 10.0 1 2 12.0. 2.0 4.0 ..2 2 2.2, 0.0 2.2. 0.0 0.0 0.0 0.0 00 0.0 0.0 00 0.0 134 0.0 0,0 0 0.0 0 134 11./ 0,0 /61 12| 2 14 14 02 1.4 136 0 136 114.0.0 / 4 34 12 46 41 14 55 •cul 6 0000 9 3/0 0.0 3/.0 9 1760.0 176 14 14 115.2 0.0 152 2 6.9 00 69 0 1 20 00 20 1 3 10.3 0.0 10.3 6 20.2. 0.0 20.2 3 2 3 5900 5.9 8 3 3.90.9 98 2 4 0. 0 1100 11 7 16 00 26 4 43 0.0 43 599 232 831 721 279100|27 2/29 931 6.9100.|321 19 51 62.737.3 100. 59 33 92 641 35.9100. Evaluation O-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. 6-Insuflic into. 7-Psychological 8- Unknow 9 Other Total Number 1950 1951 1952 Per Cent Number Per Cent Number Por Cent Number Per Cent "Certain | Doubtful "Total Certain Doubtful | Total Certain | Doubtful| Total Certain Doubtful| Total Certain Doubtful! Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtful | Total 10 11.4 6 2.9 3 5.2. 14.3 122.8 8 13 1.6 2.9 4.8 6.4 43 32 75 8.2, 61143 11.1 12.2 20.6 11 34/05 135 65 20.0 4 12.9 11 20.0 10 0.0 9.5 6.3. 15.% 1.6 1.6 53 15 63 116 101 12.0 221 0,0.00 00 7.22 29 13 4,2 0.0 0.000 0.0 1.6 3 4 06 06/2 0 13 13 4 14 59 // 10 0.0 0.0 0.0 18.4 0.0 118.4 0.0 0.0 0.0 20.0 0.0 20.0 4.3 0 12 18 0.0 0.0 0.0 0 O 0,0 0.0 0.0 0 0.0 4.3 12 18 3. 19.0 00 19.0 1.6 11.6 27 2 0 21 146 0.0 146 0.0 2 9 13 0.4 1.7 286 0.028.6 91 91 11.30.0 /7.3 48 00 4.8 16 9 25 3.0 1.1 4.1 843/57 100 46 17.63 730 27.0. 100. 376150526 71.528.5 100. 209

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Evaluation 0- Baltoon 1-Astaonomical [2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic Into. 7-Psychological 8-Unkno Unknown s-Other Total TABLE A 165 EVALVATION DE ALL SIGHTINGS KOR ALL VERRS BY 4I6HT SUNLIGHT ON MIRROR... BKIGHINESS _SUNLIGHT ON ALUMINUM Number Per Cent Number SUNLIGHT ON PLASTER SUNLIGHT ON STONE Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful, Total Certain Doubtful | Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total 2 5. 5,9 8.3 3/ 23 54 12.7 9,422.1 // 8 19/2,2 19 14 33 2.4 22.4. 12 9.0 18 8.921. 2 4 16,5 38.9 4,9 4./ 9 10,5 10,521.0 10. 22 10.0 10.0 200 2 9 13.9|31.1 3 105 5,315.8 3 12 10.6 3.514.11 47 34 7617,2 6 13 19 6.7.14.4 21. 0.0.15,8 15.8 1.2 0,0 1,2 0.0 0.0 4 / 4 1,6 2 0.0 0.4 1.6 / 0,0 . 1.1 0.0 0.0. 00 0.8 1/2,2 0.0 2 0 0.0 0.0 0.4 10,61 0.0. 0.0 0,8 0.8 1.1 2.2: 3.3 0 0.010.6 17 2 0 17 2,0 0.0 0.0 7,0 10.0 0.010.0 0.0 5.3 5,3 0.0 a0 5.3 0.0 5,3 4.8 2 15 4 2,4 15/7.6 24 2 4 0.017.6 52 0.52 0,8 21.3 0.8 1.6 16 0.0 0,0 0.0 0.0 0.0 0.0 21.3 16 17.8 0.0 0.0178 5 26.3 00 26.3 3 4 12 3,5 4.7 2. /1 3,7 0.8l 4,5 0 3 13,3 0.0 3,3 2 2 110,5 0.010.5 58|27 85 682318 100. 168 76 244/68.9131.1100. 156 34 90 62.237.81100.12 7.19 /63.2 36.81100. Evaluation D-Balloon I-Astronomical 2-Aircratt 3-Light Phenom. 4 Birds iS-Clouds, Dust, etc. 6- Insuffic. Info. 7-Psychological 8-Unknown 9 0ther Total SUNLIGHT ON SOIL Number BRIGHTER THAN MOON Number LIKE MooN Number DULLER THAN MOON Per Cent Per Cent Per Cent Humber Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfil Total Certain Doubtful Total Certan Doubtful, Total Certain Doubtful Total Certain Doubtful Total 4 4 52. 0.0 57L 19 28 47. 4.0 5.9 9.9 / 2 3 1.9 3.8 5.7 5 7 12 71 10.0 17.1 0.0 14.3 14.3 130 69199 275 14.6 721 4 15 8.0 243 37.9 0,0 0.0 0.0 0.0 0.0 27 6 52 79 5,7 11. 0 / 6.7 3 0.6 14 0,0 13 1.9 2 2 7.5 205. 28.3 23 16.264 3.8 30.2 6 4.3 3 0.0 0.0. 0.0 0.2 1.9 3.8 5,7 0.0 0.2 0.0 0 0.0 00 00 0.0 0.0 0.0. 00 0.0 3 / 4,3 2 14 в.6 4,3| 1.4 5.7 14. 28 14.314,3 0.0 0.0 0.0 0.0 00 22 0 22 0.0 4.7 0 0,0 4.3 0.0 4.3 0 0 0 00 0,0 0.0 0.0 0.0 47 0 00 0.0 0.0. 0.0 3. 14.3 0.014.392 0. 12 0.6 0.0 0.0 19 1,9 29 29 195 0.019,5 D.D 0.0 0.0. 6 120 3,0 1,3 43- 15 0 0.0 15 28,3 0,0 283 15 2 15 21.4 0.0.21,4 0. 0,0 0.0. 0.0 3 0.0 43 4.3 5 2 7 71.428.6100. 314158472.665 3351100.1351 118 53 660 340 100 34 36 70 48.6 51.4100. Evaluation Q-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4- Birds J5-Clouds, Dust, etc 6-Insuffic, Into, 7-Psychological &-Unknow 9-0ther Total BARELY VISIBLE NOT. STATED Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain| Coubtful! Total Certain" Doubtful, Total Certain Doubtful Total Certain | Doubtsull Total Certain Doubttul! Total Certain Doubtful Total 2 8.3 83 16.6 194 104.298 9.0. 4:8 13.8 2/6.7 8.3 0.016.7 292. 209. 50/13.6 9,7.23.3 8.3/6.6 252 177.429 11.7 8.2 19.9 0 0.0 0,0 0.01 0.0 23 34 1./ 0.5 16 6 2/ 0.7 0.3 0 2 0 2 0.0 0.00 0.0 0.0 10.0 15 9 10 19 0.4 0.5 0.9 (6.1 0.0 /6.7 235 0 23510.9 0.010.9 0.0 0.0 0.0 31 3 34 1.9 0.1 1.5 H 333 0.0333 474 - 0 474.22.1 0.0 22.1 0. 0.00.0 00 83 21104 39 1.0 4.9 10 2 12 83,3 16.71100. 1608154/ 2149.74.8|25.2.100. 210

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Evaluation lo Balloon l-Astronomical 2-Aircraft {3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. & Insuflic into. 7- Psychological 8 Unknown s Othe Total TABLE AIGE EVALUATION OF UNIT SIGHTINGS -FOR ALL YEARS 64 LIGHT BRIGHINESS SUNLIGHT ON MIRROR SUNLIGHT ON ALUMINUM SUNGHT ON PLASTER SUNLIGHT ON STONE Number Per Cent Certain Doubtful Total Certain Doubtful Number Per Cent Number Per Cent Rumber Per Cent Total Certain Doubtful Total Certain Doubtful Total Certain Coubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2 4 6 2.7 5.3 8.0 28 19 47141 9.5 23.6 // 8 19.149 10.835,7 2 2 4 105 165 210 3032.2.17.340.0 11 10 21 55 5.0 10.5 3 12/2.2 4.1 163 1110.7 4.0 147. 33 29 67/6.614.6 312 12 18 8.116.2 34.3 1 13 00. 1.3 0 0.01 0.0 00. 0 0.0 0.0. 0.0 6 0.0 0.08.0 3. 2.2 14/8.7 13.40 0.018.7. 4 13 40 5.3 NONDONG 3 0.0 1.5 1.5 2 05 05 1.0 105 00 0.5 17:8.5 0.0. 8.5 41.0 10 2.0 000000 00. 1. 4. 1.4 0.0 1.4 1.9 0.0 2.7 2.7 7 122 2.0.22 3316.6 0.016.6 0/0 00 00 0.0 1/14.9 0.0 149 9 35 10|4.5 11-1 0.01.4 N40 00000100 3 10.5| 5.3 15.8 3 0.015.8 15.8 0.0 00 00 0.0 5.3 5.3 0.0. 0.0 0.0 5.3 0.0 5.3 0.0 0.0 0.0 5 26.3 0.0 26.3 Z 18.5.00 10.5 5/. 24. 75168.032.0100. 133 66 199665/33.21100. 47 27 7463536.5100. 12 7 1 9 63.236.81100. Ryaltier 0-Balioon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuffic. Info. 7-Psychological B-Unkrown 19-O ther Total SUNLIGHT ON SOIL Number Per Cent BRIGHTER THAN MeeN Number Per Cent LIKE MeoN DULLER THAN MOON Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 4. 0 457,1 0.05%1 15 24 39 3.9 6.210.1 1 16 00 2.6 0.0 5 4 9.3 7.916.7 0 143/43/02 0.0 22 58. 160 26.5: 15.1416 3. 9 12 7.9 23.7316 6 1/ 17. /1. 20.5 31.5 0 0.0 0,0 44 66 52 113 171 2 1021.1 53 26.4 0.0 6 3 3 5.6. 5.6. 11.2 0.0 0.0 0 9. 1.6. 3 в. 09 2.4 2 3 26 53 7. / 1.9. 3.8 0.0 0.0 / 0.3, 0.0. 0.3 0 a0. 0.0 00 / 0,0 145 2 1.9 1.9 14.3 0 00 00 0.0 0 3.8 0.0 0.0 0,0 0.0 14,3 0.0 0.0 0.0143 0.0 0.0. 21 3 7/ 0 0.0 0.0 0.0 0 0 11 5.3 0.0: 5.5 0 0 0 0.0 0.0. 0.0 3 0.8. 0.0 0.8 00 2.6 306 0 71 18.4 0,0 18.41 IL 0 11 28.9 0.0. 28.9 0 0 0.0 15 2.3 1.6 3.9 0 0. 00. 00 0.0 3 0 10 0 3 00. 0.0 0.0 5.6 2 2 00 3.7 3.7 0 10,18.5 0.0 /3.5 3 3 00 5.6 5.6 5 2 7 71.4 28.6100. 250/35 385.64.9.35.11100. 24 14 38|63.2 368100 29/25 54|53.7 46-3/108. Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phesom. 4- Birds 5-Clouds, Dust, etc. G- Insutfic. Info. 7-Psychological & Unknown 9-0ther Total BARELY VISIaLE NOT STATED Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain| Doubiful Total Certain] Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2/25 12,5 25.0 159 89248 9.4 5.3:14.7 0.0 125 232/50 38213.71 8. $225 25123. 0.. 0 0 2 0 250211/38 34912.4 8.205 0,0 0.0 23, // 10 6 34/31 0.6 3.0 0 0.0 0,0. 0.0 16 0.6.1.4 0.0 0.0 0.0 1.0 2 6 0.1 0.2. 03 0 2 25.0 0,01 0.0 250. 202 0. 20211.9 0.0. 11.9 0.0 00 29 3. 32 1.7 ú.2 1.9 12.5 00 12.5.340 0 340 28.1. 0.020.1 0 00 0.0. 00 72 14. 86 4.2. 0.8 5.0 2. 8. 75.0/25.0100.V280 415/695 75-5 24.51108. 211

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Evaluation 0 81l000 1-Astronomical 2-Aircraft 3. Light Ptienon. +-Birds 5-Clouds, Dust, etc. G Insuffic into. 7-Psychological & Unkrom sothes Total TABLE AlLI EVALUATION DE ORIECT SIGHTINGS FOR ALL YERES L/GHT. BRIGHTNES. SUNLIGHT ON MIRROR SUNLIGHT ON ALUMINUM SUNLIGHT ON PLASTER SUNLIGHT ON STONE Certain Duratul Total Cantan Boon Tobal Certain Doubt Total Certain orcent Total Certain Mustral Total Certain eil, Total Certain Donati Total Certain ocond Tal 2 3 532 498.2 22 17 44 15.1 9.5/246 7 18 15.1 18.025 2 23 97180377 7 8 15 39 4.5 84 1/ 12.9. 2.915,8 -0000N 9 115 33 148 32 27 5917.9 15.133.0 16. 8.614.322.9 (w/0/0/ 0021.6 0 3 3 00 1 1.7 0.0 1. 4 1.4 0.0 0.0 0.01 2 06 0.6 1.2 7 0.0 1 4 1.4 0.0 0.0 0.0 0.6. 0.0 0.6 4.9 00: 4.9.15 • 15 8t. 20 8b 0D. 2. 9 2.9 3 33 1 6 4.9 2 NO 9 129 0.0 12.9 4 1.1 11 2.21 0 a9 00 00 14 14 230 0.033.028 2 0 28 15.6 00 15.6 1115.7 0.0 15.7 3 16 33 49 6 2_ 8 3.4 1.145 / 111 00 14 N46100000 00000-001 3.125 - 6.2 18.7 4on0-00 09 62 6.2 0.0 /8.8/8.8 0.0 0.0 0,0 0.0 6.2 6.2 0.0 0.0 0.0 6.2 0.0 0.0 0.0 3/.2 0,0 31.2 2/25. 00125 42 19 61 68.9 3/1100 119 60 179/66533.5180. 47/23 70 67./32.9.100 101 6. 16 625 375/00. Evaluation 0-Balloon l-Astionomical 2-Airctaft 3-Light Phenom. 4-Birds 5-Clouds, Dust, Mc G- Insuffic, Into. 7-Psychological 8-Urknown SOther Total SUNLIGHT ON SOIL BRIGHTER THAN MOON LIKE MOON DULLER THAN MOON Number Per Cent Certain Doubtful Total Number Per Cent Nuraber Per Cent Number Per Cart Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain/ Doubttul Total Certain Doubtful Total Certain Doubtkul | Total 4 4 66,2 0,0 66.2 14 21 35 2-20 63 10.5 2.4 0.0 2.9 10.2 6./16.3 1.0 16.7 16.7 5 3 82 48130 24.61 14139-0 3 8 // 89 23.5323 0.0 0.0 20 6 0 0 00 0.0 0.0 0.0 41 61 6.0 12.315.3 7. 14.2 3 3 0.9 2.9 3.920.7 59 8.8 0.0 0.0 0 0,0 0.0 2.7 0.3 16.716.7 / 0.3 0,0 0.01 14 6 2 / 12216•3 28.5 6 1 6.112.2 0.0 0 0.0 0,0 0.0 0.0 20 2 0.20 6.0 0.0 0.01 0.0 0.0 .6.0 2 0.6 0.6 0.0 61. 0 6/18.3 0.0 00 00 .3 0 0.0 0.0, 0.0 0 0.0 0.0 0.0 0.0 00г 2.0 2.0. 4.0 0.0 2.0. 20 0.0 0.0 0.0 3 0.0.2.9 0.01 2.9 0.0 0.0/8.3 32.4 0,0 32.4 10 0.0 0.0 0.0 // 9 6 15 2.7 18. 4,5 0 0.0 0.0 0.0 0 NO 3 3 0.0. 00 6.1 0.0 6l 0.0 4.1. 4.1 10 20.4 0.020.4 3 -1.0 6.16.1 4 2 6 1667 33.3100. 12151/19 334644 356100.2111334/618 38.2100/28 2/49/57.142.91150. Evaluation 0-Balloon [1-Astronamical 2-Aircratt 3-Light Phenom. 4 Birds 5-Clouds, Dust, etc. 6- Insuffic. Into. 7-Psychological 8 Unknown 9-Other Total BARELY VISIBLE NoT STATED Per Cent Certain Doubtful Total Certain Doubtful. Total Number Per Cent Number Per Cent Has ber Per Cent Certain] Doubtful Total Certain Doubtful Total Certain Doubthul| Total Certain Doubthd Total Certain Douttful Total Certain Doubtful Total 2 14,3 14.3 28.6 140г 79219 9.1 55152 14.3 0.0143 154/18.272.107 2 0 .143/4.3.28.6 19112031113.2 8.2 18.9 8•3 315 0.0 0,0 21 8 29 1.5 0.6 2,1 00 0.0 0.0 0.0 0.0 10 в 16 0.7 0 0.0 D.0 0.0 2 0.1 1.1 14.31 0.0143 188 4158 13.0 0.3 0.4 0.0/3.0 0 0,01 0.0 00 29 3 32 20 0.2 22 0 0 1 14.3 1.0143 293 3 0.020. 0. 0.0 0.0 0.0 88. 0, 22320-3 0.8 8. 7 7.4.28.6100. 1094| 349V443 75.8.24.2100. 212

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LIN CAR LOUTDOORS LIN PLANE *IN BLDG. TABLE A148 LOCATION - OBSERVERS DURING. SIGHTING ALL SIGHTINGS YEARS Number JANUARY ALL FEBRUARY MARCH Per Cent Per Cent Per Cent Const Variable Tolal Const Variable Total Const Variable Total Const Variable Total Const Variate Total Const Variese To lal BY MONTHS APRIL Number Per Cent Const Variable Total Const Variable Total 1 11 60 2 64 373 0 20 12.0 0 22 3.3 0.6 6.6 1.2 38.5 0.0 12.0 0.013.3 24 90 16 20 3 2712,0 94 75.0 0 116 8.0 0 20 10.0 1.5 135 2.0 470 0,0 8.0 0.0/0.0 "OTHER 1,33.24.3 0.0.24.3 2136 919 5.1000. 90 0.0. 5.4 18 0.0.18 0. 24 25₴ 0.0 258 46 0 46 27.7 0.027.7 43 3 93 96.8. 3.2108. 163 1 3 166 982 18100.1193 43 21.0 40 00 0.0 0.0 21.5 7.200 |96.5 3.5100. MAY numbe JUNE JuLy AUGUST Number Per Cent Const Variable Total Const Variable! Total Const /ariable Tolal Const Variable Total Const Variable Total Const Variable Total Const Variable Total Const Variable Total 12 84 4.8 1.3 3 64 1191 5 94 15.9. 2:6 48.5 123 0 34 17.5 0.017.5 0 8 41 00 41 8 3124 539 13 552436 4440%69 04 47.3266 8 274 5%.1 0 25 11.0 00 11.0 89 1 89 95 01 91 1.1: 0.4 7,5 0 8 35 00 35 87 3 90 94: 03 98 38 4 42 7.3 08 8. S OTHER 2 INOT STATED 4/ Total 1/89 0 2 10 00 10 2 0 4/ 211 80 21144 5194 /97.4: 2.6100. 1223 0. 2 0.9 .0.0. 09 15 0 15 1.6 00 1.6| 0 44 19.3.0.0| 0.0|19.3211 8 • 8|15 0.8 15 0 211 227 00 227 94 • 99 15 00 25 5228928. 2.2100. 190920 929 978 22100•504 17 521 96.7 3.31100. LIN CAR 2•OUTDOORS. 3-IN PLANE BIN BLOG. SEPTEMBER OCTOBER NOVEMBER Number Per Cent Number Per Cent DECEMBER Const Variable Total Const Variable Total" Const (Variable Total Const [Variable Total Const Vanabe Total Const Varal Total Const Variabi, Total Const Variana Toil 21. 96. 26 2 _ 23 100 5 101 45.2 26 12.4 2/3 5.2 1011.01 13 24. 481 89 0,0 12.4 27 10 62 25 1 24 12.0 05 12.5 90 4.4 0.5 46.9 27 14.10.0 11.1 2613.0 0,5 13.5 34 33 14 61 204 85 25 7 32 149 42 19 3 48 274 18. 29.2 15 5 50 28 30 29 0 34 20.7 0.0 207 45 1 46 26.8 0.l 27.4 0 33 20.1. 0.0.201 14. 0,14 83 10 83 I OTHER NOT STATED Total 46. 1201 0 1 05 0.0 0,5 2 0 • 46 219. 0.00/.9 9 2/0|95.7 4.3100. 18 1189 0 7 36 00 30 2 118 94. 0.0 94 33 3192/98.4. 1.6/100.1157 0 2 12 00 kid - 033. 20. 00 201 25 7 164/95.7.43100.1155 0 1 06 00 0.6 | 25 14.9 0.014.9 13 168|823 7.2.100. 213

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TABLE 1169 LOCATION FOR DE ORSERVERS DURING SIGHTINGS BU MONTHS ALL SIGHTINGS 1947 JANUARY FEBRUARY He Len Number Per Cent MARCH Number Number Per Cent Number APRIL Per Cent Const Variable| Total Const Variable Total Const Variable Total Const Variable Total Const Variable Total Const Variable] Total Const Variable Total Const Variable Tola LIN CAR "OUTDOORS! *IN PLANE LINBIOG. to ZOTHER HOT STATED Total I IN CAR 2 OUT DOORS SIN PLANE * IN BLDG. MAY JUNE JULY AUGUST Const Variable Total Const Variable Total Const ariable Total Corst Variable Total Const Variable Total Const Variable Total Const Variable Total Const Variable Total 1 2 77 2T 15-4 o wa 642 00 46.2 27 0 323. 1 00 23.111 0 0 00 00 0.0. 6 109 0 27.491 0.0 49.1 l 200 0.0 20.0 0 1 18 0.0 1.8 0 00 2 12.5 1.0 12.5 7 438 0-0.43.8 3 18.8 0.019.8 - 6.3 0.0 6.3 & OTHER NOT STATED Total LINCAR POUT DOORS 3 IN PLANE *IN BLDG. OTHER NOT STATED Total 0 2 12 0 0 0.0 0 2 15.7 /1/3|22.3 27/100.551 0 0 00 0.0 0.0 0 0 00 0. 0 0.0 0 10182 0.0 182 0.018.8 0. 55100.0 0.0100. 116 0| /6100.0 0.0000. SEPTEMBER OCTOBER Number NOVEMBER DECEMBER Per Cent Number Per Cent Number Per Cent Number Per Cent Const Variable Total Const Variable Total Const [Variable Total Const Variable Total Const Variable Total Const Variable Total Const Variable Total Const Variable Totai 0. - w 0 0 0D 0.0 del 350.0 116.7 0.0500 0.016.7 0 do 0.0 00 0 0 8 42.1 8. 421 0 0.0 0 0 0.0 0.0 42.1 0.0 12.1 0.0 0.0 0.0 0.0 0 0 00 333 0-0 333 0.0| 33.3 0.0 0.0 0.0 0.0 00 33.3 3 3 0 20.0 200 0.0 200 0.0 200 6ad 0.0 B.0 60D 00 0.0 2 0 0 0 00 00 00 233.3 0.033.3 0 2/33.3 00 235 2 0.D 20 0.0 3158 0.0 15.9 0l 19400.0 0.0100. 0 3 0 33.3 0.0 333 00 0.0 3/1000 0.0100. 0 0 0 0.00 00. 0.0 0, 0.0 a0 0.0 5/100.l 0.0/100. 214

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TABLE. ALTe LOCATION FOR DE OBSERKERS ALL SIGHTINGS, JANUARY FEBRUARY Numbe Per Uent Number Per Cent Const Variable Tolal Consi Variable Total Const Variable Total Const Variable | Total DURILE SIGHTINGS BY MONTHS 1948 MARCH APRIL Const Variabie Total Const Per Cent Number Per Cent Vatiable Total Const Variable Total Const Variable Total LIN CAR. BOUTDOORS BIN PLANE *IN BLDG. 63 0 00 66.7 0 2 3 5 00 0.0 2 222 1I.1 II.1 0.0 00 00 22.2 0.0 1.! 0.0 M.L 0 3 00 0.0 13/229 0.D 77.8 16.7 0.0 16.1 _1 56 0.0 56 "OTHER NAT STATED Total 0 0 0.0 25₴ 2/ 16| 81.2 18.8000. 0 0.0 1 11.1 0011.1 9/100.0 0.0|00. 0 00 00 00 00 55.6 9/100.0 0.0100.118 0 0.0 0.0 00 0.0 0.0 0.0 18/100.0 00/100. -JULY AUGUST Number Per Cent Number Per Cent Const Variabie Total Const Variable| Total Const Variable Total Const Variabie] Total Const Variable Total Const Variable Total Const Variable, Total Const [Variable Total 0 0 5 4 9.1 45.5 36.4 00 0 0.0 45.5 00 36.4 0.0 00 0 3 77 00 171 1 18 43.6 2.6 46.2 512.8 0.0 12.8 0 9 231 0.0 23.1 0 0 3 273 0.0 27.3 8 12.7 0.0 721 0 0.0 0.0 0.0 0 00. 00 00 LIn CAR POUTODaRS 3IN PLANE *IN BLOG. & OTHER NOT STATED Total LIN CAR "OUTDOORS 3-IN PLANE HIN BLDG. 0 0 0.0 0.0 0.0 11/00.01 .0.0100. 0 6 0 1 26 00 26 0 3 77 00 71 0 SEPTEMBER OCTOBER Number Per Cent Number Per Cent Const Variable Total Const Variable Total Const Variable7 Totas Const Variable Total Const Variable Total Const Variable Total Const Variable! Total Const Variable Total 0. 0 0.D 5 6n.5 12-5 0. 0.0 00 as 0.062,5 0.0 12.5 0.0 00 2 13 0 2 6.2 14 43.3 3 10.0 8 263 D.0 6.7 3.346.6 0.0 10.0 0.$ 26.7 0 00 50 50 9 40.0 5.045.0 5 25.0 0.0 25.00 01 4 200 0.0 20.0 10 7 2 0 0 7 214 3.6 25.0 35.7 .3.6 39.3 7 25.0 0.0 25.0 2 7.11 0.0 7.1 * OTHER PLOT STATED 2 Total 1•8 0 OL 0D 00 00 2 25.0 0.0250 2 8100.0 0.0/00.|29 1 33 6.7 0.0 67 -o 130 96.7 33100.18 0 0.0 0.0 0.0 1 50 0,0 5.0 2 20/90.0 10.0100. 26. 0 0 0.0 0.0 0.0 3.6 0.0 3.6 2 281924 7.1100. 215

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AITI LOCATION OBSERVERS DURING SIGHTINGS BY MONTHS FOLL ALL SIGHTINGS 1949 Number JANUAR PerCent FEBRUARY MARCH Number Per Cent Number APRIL Per Cent Number Per Cent Consi Variabie Total Const Variable Total Const Variable Total Const Variable| Total Const Variable Total Const Variable Total Const Variable Total Const Variable Total LIN CAR 'OUTDOORS BIN PLANEL 7 0 0 9 18 7 13.6 30.5 11.9 1.4 15,3 0,0 30.5 0,0 11.9 0.0: 16.9 3 9 3 0 .0 3 161 9 500 3 1/61 0,0l 0.0 161 0.0 30.0 36 162 . 0.0 0.0 1.9 5.7 0 36 692 0.0692 0 0 4 7.7 0.01. 7.7 7 13.5 0.0 13.5 9 19 10 20 2 19.1 2.1 21.2 1a4 2.1| 42.5 4.3 0.03 4.3 8.5 0.0, 8.5 NOT STATED 15 LIN CAR LOUTDOORS 3-IN PLANE SOTHER NOT STATED LIN CAR LOUTDOORS ZIN PLANE AIN BLDG. BOTHER NOT STATED Total 0 0.0 0.0 0,0 15 25.4 2 1 59 98.3 1.7100. 18 2 11.1 0 0 0.0 0D 00 00 56 2 0 2 3.8 0.0 3.8 11 0 18100.01 00/100. 51 1/52 88.11 1.9000. 451 0 00. 0.0 0.0 0 11 234 0.023.4 2 47100. 1 4.31100. Number MAY JUNE JuLy AUGUST Per Cent Number Per Cent Number Per Cent Number Per Cent Const Variable Total Const Variable Total Const Variable Total Const Variable Total Const Variable Total Const Variable Total Const Variable Total Const Variable Total 1 30 3 0 0 3 0 0 1 2.21 33 66.7 3 6.1 0 0.0 0D 2.21 6.1 73.4 0.0. 6.1 0.0 0.0 3 18. 0 312.0 0 18 72.01 .0 1.. 4.0 0 0 00 0,0 120 0.0 720 0.0.4.0 0.0 0.0 4 9 / 0 0 4 200 0.0 200 9 45.0 0D. 45.0 5.0. 0.0 5.0 0.0 0.0 0.01 32 0 0 0 32 21.2 615 0.0 0.0 0.0. 212 0.0 61.5 0.0 0.0 0.0 0.0 8, 17.8 3: 45192.31 0.0. 00 0,0/7.8 6.700. |25 3120 00 12.0 0 25100.0 00100. 20 0.0 0.0 8 в 308 0.0300 0| 20100.0 0.0100.1521 0 0.0 0.0 0.0 9 17.3 OD 17.3 0. 52/100.0| 0.01100. SEPTEMBER ОСТОВЕК NoVEMBER DECEMBER Const Variabie/ Total Consi Variable Total Const /Variable Total const Variable) Total Number Per Cent Number Per Cent Const Variable Total Const Variable Total Const Variable Total Const Variable Total 2 0 33.3 00. 333 66.7 0.0 66.7 0,0 0.0 0.0 0.0 0.00.0 5 3 0 0 7.1 5 38.5 3 23.1 . 0 0.0 0.0 7.7 0.0 38.51 0.0 23.1 0.0 0.0 2 9 6 00 5.9 26.5 17.6 12.9. 00 5.9 0.0.26.5 0.017.6 0.0 2.9 1 0 0 7 25.9 0.0/ 25.9 22.2 11.33.3 14.8 0.0.14.8 0.0 0.0 0.0 0 31 0. 00 00 0.0 0.0 0.0 0.0 4 3100.0. 0.0100. 1 13/ 0 0 0.0 00 0.0 0 4 308 0.0 30.8 0l 13/100.0 0.0100. | 34 12.9 0.0 29 15 44.1 0 35 0. 11 0.0 44.1 0.0100. | 24 0 0.0 0.0 0.0 1 25.9 0.025.9 3 21 88.91 11. 1100. 216

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LIN CAR "OUTDOORS ZIN PLANE UN BLDG. TABLE A122 LOCATION FOR OF OBSELVERS ALL SIGHTINGS, JANUARY FEBRUARY DURING SIGHTINGS 1950 MARCH BY MANTHS APRIL Number Per Cent Number Per Cent Number Per Cent Number Per Cent Const Variable Total Const Variable] Total Const [Variable Total Const Variable Total Const Variabre Total Const Variable Total Const Variable Total Const Variable Total 100 2 10,5 3 10,5 125 5.3, 15.8 8 42.1 0.0 0,042.1 0.0 0.0 4 0 0 1 124 0.0 22. 52 3.01924 7. 12. 0.0 121 8 1 3.0 0.0 3.05 0 3 69 8.0 6.9 0. 1825.0 0.025.0 0 811.1 0011.1 G 5 6.9 0.0 6.9 0 5 0.0 0.0 0.0 8 27.6 0.0.27.6 _< 17.2 00 17.2 _4 13.8 0.0 13.8 SOTHER 0 0 0.0 0.0 0.0 6 31.6 0.03/.6 12 11 19/942 53100.132 1 30 0D 3.0 2 28 0.0 28 0 0.0 0.0 0.0 17 5/.5 0.05/5 34_ _ 0. 34472 0.047.2 12 0 12 41.4. 0.0 41.4 133 97.0 3.0100. 122 0 22/00 0 0.0100. 291 0 29100.0.0.0000. LIN CAR 2 ZOUTDOORS. 3 IN PLANE 2 4 IN BLDG. 01 • MAY JUNE JuLy Number Per Cent AUGUST Per Cent Const Variabie/ Total Const Variable Tolal Const arabie / Tolal Const Variale Total Const Variable Total Const Varable Total Const Variabie Total const Variate Total 0 2 10.0 8.0 10.01 0 0.0 0.0 0.l 210.0 0.010.0. 0 0 00 00 0.0 2 d 0 0 0 1 14.3 0.0 143 1143 0.0 M.3 2 286 000 25.6 _2 0 00 00 00 2 5 9 16.7 20.8,39.5 1 0 1 400 0.0 40 0 4.16.7 0.016.7 18 0 10 40.0 0 2 83 0.0 8.3 3. 0.0 40.0 3 12.0. 0.0| 12.0 0, 2 83 0.0 8.3 8 3 2:0 00 3.0 9 OTHER 0 0 0 00 00 00 0. NOT STATED 16_ 0 1680.0 00500 3 20 0 20400.01 0 3 95 0009 6 9 6 22 08 72 3 8 320 00 12.0 3 42.9 0. 200000D00.19 524179.2209100.25 0 25400.01 0.000. LIN CAR BOUTODORS. 3-INL PLANEL AIN BLDG. SEPTEMBER OCTOBER NOYEMBER DECEMBER Number Per Cent Number Per Cent Per Cent Const Variable Total Cons? Variable Total Const Variable Tola Corst Variable Total Const Variable Total Const Variable Total Const Number Per Cent Variable Total | Const Variable Total 4 0000 4 30.8 2 15.4 3/ 23.1 - 00.308 00 15.4 0.0 23.1 00 11 5 1 10.0 6.0 10.0 0 5 500 00 500 10.0 0.0 10.0 1 100 0.0 10.0. 5. 0 0 01 00 0.0 00 3 19.31 9.9 29,0 521.1 - 0.0 2.1 8348 0.0 34.81 6 0.0 19.3 3 0 5 217 00 217 2 g 3 0.0 9.2 65 0.0 65 P OTHER NOT STATED 2 13 0 7.7 00, 1.2 - 2/15.4 0.015.41 0/ 131100.0 0.0100.110 0 110.0 00 100 0 0 0 00.00 00 0 0 0 00 0.0 0.0 0 10.0. 0.0 10.01 01 10k0- d 23) 527 0.0201 0 11 355 0.035.5 0 23/100.0 0.0100. 281 3/ 31 903| 9.71100. 217

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LINGAR 'OUTDOORS ZIN PLANE & OTHER TARLE A13 LOCATION FOR ALL DE OBSERVERS DURING SIGHTINGS MONTHS SIGHTINGS, 19.51 JANUARY FEBRUARY MARCH APRIL Const Vanaid Total Const Vanate roll Const Valiale Toal Const Variable Tota Const Varasie Toa const Varae Total Canst Varial, Tolal Const variate Tal NO 0 3 61 13.3 20.0 2 0.0 3.7 9 600 0.060.0 • 0 0.0 0.0 0.0 0 0 00 00 00 4 50.0 16.7 66.7 • 16. 0.0 16.7 • 0 a0 0.0 00 0 0.0 00 00 16.1 0.0169 6 83.3116.2100. 2 0 1 33.3 0.0. 33.3 2 66.2 0,0 0.0 66.7 0.0 0.0 0 0.0 _ 00 00 _ 0.0 0.0 0 00 001 0.0 3/100.01 0.01100. WIN CAR POUTDOORS 3-IN PLANE *IN BLDG. IS OTHER NOT STATED Total IN CAR ZOUTOOORS 3-IN PLANE HINBLDG 137. 0.0 3.7 6/22.2 0.0 22.2 2. 27/926 741100. 1 6.7.00 2 15 861.13.3000. Number MAy Per Cent Number JUNE Per Cone Const /Variable Total Const Variable] Total Const Variable Total Const Variable Total Const Variable Total Const Variable Total Const Variable Total Const Variable Total 0 0 0 5 0 0.0 0.0 0.0 2. 40.0 0.0140.0 5100.01. 0.0000. 0 60 00 00 0 0.0 0.0 0.0 1000 0 0.000.0 0 00 0.0 0.0 111.1 00 11.1 9/00.0_0.0000.|18 0 1 0.0 _ 00 0.0 0000 2/ 20|90.010.01100. SEPTEMBER OCTOBER NOVEMBER DECEMBER Number Per Cent Number Per Cent Number Per Cent Number Per Cent Const Variable! Total Const | Variable Total Const Variable Total Const Variable Total Const Variable Total Const Variable Total Const Variable] Total Const Variable Total 2 0 2. 5.6 5.6 11.2 4 22.2 0.0. 22.2 9 50.0 0.0 500 2 11.1 0.0/ 11.1 2 15 15 53.6 17.9 1.1 0.0 0.0 0.0 53.6 17.9 36 10.7 31.81 5.917.7 1L 23.51 11412 0.0 23.5 0.0 41.2 5.9 0.0 5.9 3 1000 3 3 0 27.3 36.4 27.3 0.0 00 273 0.0 36-4 0.0 17.3 0.0 0.0 & OTHER NOT STATED Total 17 0. 0.0 00 00 12 54 6015.129 3 10.7 0.0 10.7 0. 0.0. 00 1281969) 9/10001 16. 0 0 .0 0.01 0.0 0.0 0. 2 11.3 0.011.8 17/94.11 5.91100. 0.0 0.0 0. 9. 0.0 9.1 11/00.01 0.0100. 218

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TABLE A 174 LOCATION OF OBSERVERS DURING SIGHTINGS BY MONTHS FOR ALL SIGHTINGS, 1952 FEBRUARy MARCH APRIL Per Tent Const Variable Total Const | Variable Total Number Per Cent Number Per tent Const Variable Total Const Variable) Tolal Const Variable Total Const Variable Total Const | Variable Total Const Variable Total LIN CAR 3 0 BOUTDOORS BIN PLANE LIN BLOGE 73 10391 31 61 1 1163 3932 0 LOTHER NOT STATED. Total 15/93.3 67/100. 0 0 1 37 0.0 3.7 5 278 80 27.81 4 1.9 00 148 20 18/1000 0.0000. 2/ °| 2743 3:110. 781 0 20 19.4 5109/ 952 4.81100. Number MAX Per Cent JUNE _JULY - AUGUST Per Cent Number Per Cent Number Per Cent Const Variable Total Const Variable] Total Const |/ariable Total Const | Variabie| Total Const Variable Total Const Variable Total Const Variable, Total Const Variable] Total LIN SAR BOUTDOORS BIN PLANE HIN BLOG. 0 5/ 25 0 0 9.0 53 45.1 25 22.1 8 7.1. 0.0 9.1 1.8 46.9 0D 22.1 0.0: 7.1 15 92 19 / 0 16 8.5 95 52.3 19 10.9 45 0.61 9.1 54 1.1 54.0 377 0.0. 10.8 68 0.0 4.5 71 2 61 6.9 3.380 48,2 69 8.6 3 24 9.0 7.8 4L 0.4 48.6 192 O./ 8.7 29 04 9.4. 34 2 43 7.204 2 3/ 4 38 10,3: 0,5 10.8 49.4 1.3 1.8 51.2 8.5 0.5 7.8 1.0 9,5 S OTHER KLOT STATED Total 8 7 129 00.12.9 2/13/98.2 1.8100.172 0 36 20.4 0.0 20.4185 0/85 23.5 4 196|97-1 2.3100. 176814782 98.2 1.8000. 382: 15 .397|96.2 3.5000. CAR Z0UTDODRS 3IN PLENE *IN BLDG. SOTHER NOT STATEOL _39 Total 1541 SEPTEMBER OCTOBER NOVEMBER DELEMBER Number ver lent Const /Variable Total Const Variable Total Consi Variatie | Total Const Variane Total Const Valite Total Const Varal Total const Variable Total const Variabio Total 15 90 12 9.3 0.6 9.9 5 0 85 49.41 12 3.1 52.5 7.4 0.0 7.4 2 10 49 1.2 671 43 15 0 0.0.0 0.0 00 0 39 24.1 0.0 24.1 8 162/95.14.9100. 2 _91 10 9.5 43 34.7 15 16.3 14 15.2 1.1 10,9 10 4.7 19 0.0 16.3 0.5 15.21 2/1 2 7 7.5 2 0 2/ 28.3 11.9 0 21.31.3 3.010.5 3.0 3/3 0.0 11.9 00 31.3 2 23 10 2 2.21 0.0 22 0 8 8.7 00 87 10 1 9298.9 1.4/00.63 0 0.0 0 0. 14.9) 67/94.01 0.0 14. - 02 149 3. 3 3.0 19 27.3 26 32.9 0 10 15.2 7.3 1.5 28.8 1.5. 39.4 0.0.15.2 1.51 00 1.6 в 16 24 2.0 2.6 219

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0- Balloon 1. Astronomical 2-Aircraft 3- Light Phenoma. 4-Birds 5-Clouds, Dust, etc. G Insultic, Into. 1. Paychological 8-Unkenown other Total TARLE А 1,75 EVALUATION DE ALL SIGHTINGS FOR ALL YEARS BY COLORS REPORTED EQRI. DURATION... OF SIGHTING 5 SECONDS OR LESS , WHITE OR GLOWING WHITE OBJECTS 6-10 SECONDS 11-30 SECONDS 31-60 SECONDS Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful| Total Certain Doubtful| Total Certain Doubtful Total Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubthul Total Certain Doubtful Total 5. € 08. 4.1. 49 2 4.7 4.7 3.0| / 00 20 20 36 1 40 76 293 32.5618 2. 0,0 2 6.0 9.0 10 19 23.2 20,9 441 13 3 116 19.4 4.5 23.9 4 // 18 52 8.9146 9 9.3 1/.6 20.9 4.1 4.1.8.2 8 19 16.4 11.928.3 10 2 10.0 1.6 1.6 2.3 0.0 1.5 14. 20.4 8.2 28.6 2.3. 00 15 0 0.0 00 0.0 2 0.8 0.8 1.6 00 0.0. 0.0 3 3 2.4 00. 24 00 00. 00 12 28 00 9.8 1 08000 0 0.0 00 00 00, 00 00 0.0 4 / 5 8.2 2.0 102 0 0.0. 00 0.0 0.0 0.0 0 0.0 00, 0.0 04 20 00. 70 5 0.0 0.0 0.0 9 20.9 00 209. 17 > 10 5 7.5 00.15 6.12.2 0.0.12.2 0.0 1.5 15 0.0 0.0 0.0 25.г 0,0 25.4 3 2.4 - 0.8 3.2 19 19 38.8 0 00 00 0.01 2 3.0 003.0 63/60/23.51 2 488100. 27|16 43 678 37.2.100. 2 15017/67/746.25.4100. 141 0.0. 38.8 0.0 0.0. 0.0 8 49 83.716.31100. Evaluation D-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological 8- Unknown 9-0ther Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. Into. -Psychological 8-Unknown 9-0 ther Total 61 SECeNDS - 5MMUTES Number Per Cent Number 6-30 MeMUTE OVER 30 MINUTES DURATION MOT STATED Per Cent Number Per Cent Number Per Cent Certain Doubttul Total Certain Doubthil Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Todal Certain Doubtful Total Certain | Doubtful Total 20 19 39 161 15.3 31.4 21 20 41 174 16. S 33.9 16 4.0 32. 1.2 13 18 10,2 41/4.8 12 3 19 20.0 3.8 23.8 17 9 5.515.9 5 17 15.0 6. 2 21.2 26 12 9 15 21 9.7.7.3 7.311.0 4 1418 3.3 11. 6/49 12 47 121.2 12 6 2 6.2 15.0 41 18 10.4 46.0 9.2.25.2 7.4 3.2 |11.1 0 00 00 0.0 0 00 0 0 1.7 5.8 0 0.0 0.0 00 0 0.0 0.0 0.0 00. 00 0 0 0.0 0.0 0 0.6 0.L 4 0.0 0.0 0.0 0 0.0 0.0 5 08. 3.2.40 0.0 0 1.2 5 40 00 4.0 08 08 1.4 39 4 2 39 35 0.0 315 0 4 3.2 00 32 9 5 2/ 2 0.0 00 0 0.0 0.0 0.0 2 1.2 0.0 7.4 00 74 1.2 0.0 1.2 25- 25 1S.3 0.0 15.3 5 0 21 1174 0 2 17 0.0 $.L 0 0.0 0.0 0.0 2 3 12 0.6. 1.8 00.17.4 22 122 27.5 0.0 215 22.1 0.0 22.1 0.01.1 4 36 34 5.0 0.0 5.0 6. 2 0.0 6.7 87 31/21 702/298100 27 44 121 636 364100. 60/20 80 75.0.25.0 100 /32 31 163 81.0 19.0100. TABLE A1Z6 EVALUATION OF ALL SIGHTINGS EOR ALL YEARS BY COLORS REPORTED FOR DURATION OF SIGHTING, METALLIC OBJECTS 5 SECONDE OR LESE Number 6-10 SECONDS 11-30 SECONDS 31-60 SECONDE Per Cent Numbes Per Cent Number Per Cent Number Per Cent Certain | Doubtful Total Certain Doubttul Total Certain | Doubtful Total Certain Doubtful Total Certain | Doubtiul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2 77 38 11.5 2 2 00 10.5 10.5 2 2 6 3 3 3.8 77 11.5 8 7.2 23.1308 7 2 00.10.5 10.5 9 42.1 5,3 41.4. / 2 19 4 5 118 71 8.9 2 2 2 4.4 4.4. 8.8 2 3.6 0.0 4.4 4.4 1635 3.6 0.0 33.9 28.6625 17 7 24.37.8 15. 6 53.4 / / 3.8 0.0. 3.8 / 1 0.0 5.3. 5.3 0.0 0 3.8 1.8 1.8 1 00 2.2 2.2 0.0 3.8 0.0. 00 0.0. 0 0,0 0.0 0,0 0.0 0.0. 0.0 / 2.2 0.0 2.2 0 000.00.0 38 00 3.8 L 5.3 0.0 5,3 0 / 0 0.0 0.0 10.0 0 0.0 00 00 0 1.8 0.01.8 2 2 3.8. 0.0 3.8 0 0 00. 4.0 00 3 136. 1.8 5.41 0 0 4.4 0.0. 4.4 0 00 00 00 6 23.1. 0.0 23.1 4. 0 4. 211. 0.0 211 20 2 77 00 17 0 0 0 00. 00.00 0 0 2 161 0.0 16.1. 10 0 10 22.2 0.0 222 0 0 00 00 00 1 0 1 22 00 2.2 12. 9 2660:434.6.100. 13. 619 681316100 34 22 56 607393 100. 33 12 45 73.3 242100. Evaluation 0-Baitoon 1-Astronomical 2-Aiscraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. G Insuffic Into. 7-Psycho lo gical 8. Unknown 9 Other Total 61 SECONDS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES DURATION NeT STATED Number Per Cent Number Per Cent Per Cent Per Cent Certain (Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful| Total Number Certain Doubtful Total Certain Number Doubtful Total" Certain Doubtful, Total Certain Doubtful Total 21 10 3/ 176 8.4260 26 12 38 25:2 119 316 11 4 15 19.3 7.0 26,3 16 4 20 / 1.0 12.6.,3.1 15:7 0.8 0.0 % 0.8 / 18, 71 3.1 2.4 55 20 15 35 16:8. 12.6 29.4 0.8. 0.8 11.6 10. 0 / 0.8 0.0 0.8 0.0 20.30 / / 0 0.0 1.0 4 5.3 9.9 19.8 29.7 2 3.5 • 3.5 1.0.23 8 31 118.1 6.3 244 0.0 1.0 10 0.0 00.00 0.0 0.0 0.0 0.0 00 D. 0 3 00 00 0.0 0.8 00 08 0 3 00 0.0 00 00. 0.8 .0.8 17 0 0 17 14.3 0.0.143 0.00.8 0 9 153 9 8.9 0.0 8.9 530.0 00 00 00 28 00 0 0.0 0.0 0.0 22,0 00 220 3.5 003.5 0.8 0.008 121.5 0.0 21.8 0.0 14,9 22 5 12.2.54.2 4.0. 2.0 6.0 0 2 27.41.4 0.0 474 3.5 29 9 0 29 22.8 0.0 22.8 2 00 3.5 7.1 0.0 7.1 90. 29119 756.29.4100. 65 36/101 644 35.6100. 48 9 57/84.2/15.8100. 111. 16/22/874 12.6100. 220

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Evaluation 0- Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic Info. 7-Psychological 8Unknown 9 Other Total TABLE ALTI EVALUATION OF ALL SIGHTINGS FOR ALL YEARS BY COLORS REPORTEO EDR DURATION OF SIGHTING, DANECT COLOR NOT STATEO 5 SECONAS OR LESS 6-10 SECONDS 11-30 SECONDE 31-60 SECONDS Number Per Cent Numbet Per Cent Certain Doubtlull Total Certain Doubtful Total Number Per Cent Number Per Cent Certain Doubtful| Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Totas Certain Doubtful Total Certain Doubtful Total 00 25 2.5 250 5010.0 00 2.22.2 3 2 5 926.516.2 15 26 375 27.5 65.0 9. 400 5.0 45.0 N 13.3 2.2155 2 3 45 3.2 4.2 4 10.0 So 150 4 100 10.0.20.0 4 11.1 8.9. 20.0 12.9 1.519.4 0.0 0.0 0.0 2 2 0.0 0.0 0.0 0 0.0 10.0 10.0 0.0 00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.5 0.0 2.5 0.0 0.0 00 0.0 2.2 2.2 0.0 0.0 0.0 5 12.17 0,0 112.5 5.0 00 5.0 15.6. 0.0 15.k 65 0.0 65 00 00 00 0.0 0.0 0.0 00 00 0.0 0.0 0.0 00 2.5 0.0 0.0 2.5 2 10.0 00 10.0 0 0.0 00 0.0 0.0.0.0 10 2 10 22.2 0.0 122.2 14 10 4.4 17.8 22.2 26 1. 14 40 65.0 35.0100. 201700.30.0100.130 15. 4566733,3100. 25 14 6 31 45.2 0.0 45.2 00 3,2 3.2 80. 6 19.4 100. Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4- Birds 5-Clouds, Dust, etc. 6-Insuffic, Info: 7-Psychological 8 Unknown 9-Other 61 SECONDS - 5 MINUTES Number 6-30 MINUTES Number OVER 30 MINUTES Number DURATION NOT STATED Per Cent Per Cent Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 14 19 15.6 56212 9 12 2/ 11.2/5.0,26.2 0.0 2.2 2.2 5 723 8.7 2 17.8 1.2 2.5 1.8 25.4 13 19.16.2 7.5 23.2 3 0 2.2 /./..3.3 0.0 0.0100 0.0 0.0 .0.0 0 0.0 1211.2 0 0.0 0.0 1.2 0.0 1.2 1 3/ 0.0 2.8 0.0 7.8 12 12 15.0 0.0 15.0 3/ 00 00 0.0 2 2 2.5 0.0 2.5 344 0.0.34.4 10 10 12.51 0.0 12.5 5 560.0 5.6 8.8 0.0 8.8 7 0 3 3 14 3 26 4 7 14 85 8.5 17.0 13 10 23 4.9 3,8l 110 11.0 1.212.2 3 4.4 8. 7 4 15 59 5.622.1 12 3.7. 4.9 2323 46 0 0.0 8.6 0.8 8.6 17.2 0.0 0.0 2 1.6 3 32 0.0 3 3.7 1.5 0.8 0.4 0.4 19 3.1 0.0 3.7 00 14.17/00 17.1 55 0.4 55 20.2 0.0 20.7 3 3.7.00 3.1 3 1.1 26. 317 00 3.7 1.2 149. 4 0.4 1.5 49 18.4 00 18.4 5 4.9 6.1 19 1. 20 7.1 0.4 7.5 Total cyalua or O-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic, into. 7-Psychological 8 Unknown 9-0 ther Total 75 15 90 833. 16.7100.| 59.21 80 738.26.2100. 170 12 82/85.414.6100. 213 53 266/80.1.19.9.100 TABLE AITS EVALUATION...OF ALL SIGHTINGS EOR ALL YEARS BY COLORS FOR DURATION OF SIGHTING, ORANGE OR GLOWING PRANGE OBJECTS 5 SECONDS eR lESS 6-L0 SECONDS 11-30. JECONDS 31-60 SECONDS Per Cent Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total Number Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Number Certain Doubtfut Total Certain Doubtful Total 0.0 0.0 00 0 00 00 0.0 0 0.0 0.0 0.0 4 5.3 15.8 21) 17 3 26 33.312.6509 10|37.51 4.2 41,2 4 .18.2 17.1 33.3 2 18.2364 105 10,5 6 9 21.0 5.9 11.8 8 25.0 8.3 9.1 2 4 2118.2 2 4 10,5 10,5 - 210 0.0 0.0 0.0 0 0,0 0.0 0.0 0.000 000.0 10.0 110,0 0 0.0 2.0 0.0 2.0 0.0 0.0 0.0 45 0.0 4.5 5.3 0.0 15.3 0.0 0.0 0.0 0.0 00 0 0.0 0.0 0.0 0.0 4 0. 7.8 0.0 1.8 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.3 00.53 5 20 00, 2.0 98. 0.0 9.8 5 2.8 0.0. 0.0 0 1. 45 0.0 45 00 20.8 0 1 318 0.0 318 00 20.8 5.3 00 5.3 5 1.8 2.0 9.8 4.2 00 42 1 00 45 45 0 4 21 1 00 211 0. 0.0.00.0.0 34/7 51 667 33.3100. 21 3 124/875/25100. 15 1 22/68.2318 318100.112 2 19 63.2136.8100. Evaluation Q-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. f-Insuffic Into. 7-Prychological & Unknown 90mher Total 6I SECONAL - 5 MINUTES 6-30 MINUTES Number Per Cent Number Per Cent OVER 30 MINUTES DURATION NOT STATED. Certain Doubtful Toia: Certain | Doubtful Total Certain Doubtful Total Certain] Doubtful Total Number Per Cent Per Cent Certain Doubtful Total Certain | Doubtful Total Certain | Doubtful Total Certain Doubtiz Total 4 2 70 88115.8 6 2 8 16.2 4 5421.6 4 0.0 2.0 1.0 4 8.1 2.8 109 3 3 3. 14.3 0.01485 4 5 5.8 1.47.2 2 8 12.314.01 26.3 4 4 2/4.3.19.0 19.033.3 6 6 17 159. 8.2.24.4 15 5.4 5.4 10.8 3.0.0 14.3. 14.3 17/5.9 3.5 6 16.2 8.7.24.6 3.5 16.2 00 48 00 48 0.0 0.0 0.0 00 0.0 0 4.4 0.014 0.0 0.00.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0,0, 0.00.0 8.0 0.0 6. 10,5 0.0.10.5 2.8 2,8 2 0.0 0.0 0 00 0.0 0.0 110.1 0.0 10.1 3 3J 5.3 0 00 0.00.0 1 00 48 48 0,0 14 15 3 1.8 1.4 15 263 00 26.3 12 3 8.300 5.3 12. 32.4 0.0. 32.4 5 23.8 00 23.8 2 1 48. 0.0 48 16 16 5 23.2 00 54. 5.4 4 0.0. 23.2 1.4 5.8 7.2 38//9+166733.3100 130 7 3181.1 18.9100. 13 8 21 16/9 38.1100/52 17 69175.4 28.6.100. 221

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Evaluation a Balloon 1-Astronomical 2-Aireraft 3 Light Phenom. 4-Birds 5-Clouds, Dusi, etc. 6 insuftic into. 7 Psychological 8-Uaknown 3-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenam. 4-Birds S-Clouds, Dust, etc. G-Insuftic, Info. 7-Psychological 8-Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Info. 7-Psychological &-Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. f. Insultic, into. 7-Psycho logical 30000 Total TABLE A18I EVALUATION OF.. ALL SIGHTINGS FOR ALL FOR YERES BY COLORS REPORTED OURATION. DE 5 SECONAS OR LESS 6 - 10 SESONOS SIGHTING, YELLOW OR GLOWING YELLOW OBJECTS Number Number 11-30 SECeNDI Number 31-60 SECONDS Per Cent Per Cent Per Cent Number Per Cent Certain Doubtful Total Cerain Doubtful Total Certain Doublul Total Certain Doubtful Total Certain Doubtrul| Total Certain | Doubtful! Total Certain Doubttal| Total Certain Doubtful Total 5 0.0 0.0 16. 40.1 18.5.19.2 00 0.0 0.0 2 1100 5. 015.0 0 0.0 0.0 0.0 6 462 0.0462 3 3 15.0 15:0.30,0 2 35,0 10.0450 3 2 9 11.1 7.418.5 3 154 7.7 23.1 3 3 2o 15.0 3 5 13.0 100 25.0 / 3.2 0.0 3.2 100.0 0.0 0.0 00 10.0 г.0 5.0 00 0 3.7: 3.7 2_1.2. 1.1154 0.0 0 0 0.0. 0.0. 0.0 00 0.0 0.0 0 0.0. 00. 0.0 0.0 0.0. 00 0,0 3.2 0.0|3.7 0 0.0 0.0/20 3 3 5.050 0.0 0.0, 0,0 150 0.0/5.0 1410 0. 0.e 0.00.0 0 0.0 0.0 0.0 5. 0 0.0 5.0 8.0 0.0. 5.0 8.0 5.0 0 0 11. 0,011 0 0.0 0,00.0 2 0 2 ..0 15.4 0.0 15.4 3 15.0. 0.0 15.0 3 15.00.0 15.0 0,0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 19/8 27 704 29.6100. 11. 2 73 84.615.4 100. 15 5 20/75.0 250 100/15 5 20 15.0 25.0 100 61 SECONDS - 5 MIMITES Number Per Cent 6-30 MINuTES OVER 30 MINUTES Number Per Cent Number Per Cent DURATION NOT STATES Number Per Cent Certain Doubtfull Total Certain | Doubtful Total Certain Doubtful Total Certain] Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubth Total 2.8 0.0 ґ.6 2.8 8.! 24.3 8.4 9 16.2 4 3 7 22.2 16.7.38.9 5 2 13.9 S.6 19.5 B.S 0.0 8 16 2.8. 216 18.9 56 11.1 6 1 10 16.7 278 222 22.244.4 5. 6 2.8 11.2 8.4 0,0 0.0 0. .0 0.0 0.0 3 D. 10.8 0.0 8.1 0.0 0.0 0,0 0.0 0,0 3 8.3. 0.0 8.3 0.0 2.7 1.0 2.7 0.0 0.0 0.0 0,0 0.0 0.0 10 10 27.8 0.0 27.8. 0.0 0.0 0,0 0.0 16.2 3 11.2 5.4 2.2 8,1 2 4 0 0.0 0.0 11.! 0 0.0 0.0 0.0 0.0 22.2 0.0 5:6 22.2 5.6 10 10 127.8 27.8 0,0 2.8 0.0 28 251 // 36 1694 30.6|100.1 27 10/32/73.0.27.0100. 718 61.1/38.9100.| 30 6 36 /833|16.7 100. TABLE AI82. EVALVATION OF ALL SIGHTINGS FOR ALL YEARS BY COLORS REPORTED EDE DURATION DE SIGHTING, OBJECTS ..OF OTHER COLORS 5 SECONDS OR LESS 6-10 SECONDS 11-30 SECONDS 31 - 60 SFCONDS. Simoen Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0.0 00 0.0 2 2 135 0.012.5 2 3 - 0 10.015.0 2 19 14 33 6 3/3 5.0 6.7 6.7/3.4 38.0 28.0 66.0 6.3 376 4 20,0 2150 0.0 6.7 6.2 18.0 2,0 120 2 0.0 12.5 12.5 5 0 0,0 0.0 0. 0.0 63 6.3 / 25.0 5.0 30.0 3 13.3 20.0 33.3 S.0 0.0 2.0 2.0 00 0.0 0.0 г. 0 1.0 0 3. 0.0 2.0 2.0 0 0.0 0,0 0 2,0 6.0 0.0 6.0 12.5 0.0 12.5 0.0 20.00 0.0 5. 0 5. 0. 0 L 0 0.0 C.0 0,0 0.0 120 0.0 12.0 0.0 0.0. 0.0 2 1 0 212.5 0.0 12J 3 0.0 - 6.3 0.0 4.3 15.0 15.0 0.0 0.0 0.0 0 0 0 33/17/50 66034.0100|12 4/6/260 25.0 100.114 6 / 20/70.0 30.0100. 0 00 00. 0.0 6 400 0.0.40.0 1 6.7 00 6.2 10 5 75 166.733.3:100. 6/ SECONDS - 5 MINUTES 6-30 MINUTES OVER 30 MINuTES Number Per Cent Number Per Cent Number Pes Cent DURATION NOT STATER Certain | Doubtful| Total Certain Doubtful Total Certain Doubtful Totas Certain Doubtful Total Number Per Cent Certain (Doubtful Total Certain | Doubtful| Total Certain Doubtful Total Certain Doubtful | Total 2 3 29, 5.2 8.6 3 6 9.4 9.4 0.04.3 2 5.1 8.6 18.8 3.118.7 2 J.3 26.3 3 1J.2 1.2 6.9 2.9 15.6 11210.57 12 4. 2420.2 20.241.4 143/7/314 0 0.0 2.9 10.5 10.3 2.9 2.11 12.525.0 0.0 5.215.3 0 0.0 2.0 0.0 0.0 0.0 0.0 0.0 0 0 0.0 3.1 0.0 0,0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 3 10 0.0 2.2 8.6 8.6 0.0 0.0 0.0 0.0 6, 3 5.3 1•7 1.2 0.0.2.9 3.1 0.0 3.1 5.3 0.0 5.3 10.3 0.0.10.3 б.2 2.918.6 0.0 0,0 0.0 53 0.0 15.3 / 2 0.0 1.2 10 0 284 00 281 9 28.1 0.0 78.1 7 368 00 368 12 0.0 0.0 1 0.0 3.11 3./ 0.0 5.3 8.3 12 20.7 00.20.7 0.0 12/9 121 14 35 160040.010023 9 32 77.9 28.1100 15 4 /9 789 21.1 100. 40 18 58 690,31.0 V00. 222

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Evaluation 0- Balloon I-Astronomical 2. Aircraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. 6 Insuffic Into. 7-Psychological &-Unknow 9 Other TABLE A119 EVALUATION OF ALL. SIGHTINES EDR ALL YEARS 8Y COLORS REPORTED FOR.DURATION OF SIGHTING, KEN OR GLOWING REO OBJECTS 5 SECONDS, A LESS 6-10 SECONDS 11-30 SECONAS 31-60 SECONDS Number Per Cent Number Per Cent Number Per Cent Per Cent Cerain Doubtul Total Certain Doubtful Total Certain Doubiful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Number Certain Doubtful Total Certain Doubtful Total 0 0.0. 00 00 0 1 48 00 48 18.2 18.2 36.4 13 10 23 481 37.0851 5 0.0 0 5 500 00 0.0 00 50.0 3 10 33.3/4.347.6 / 2 4 9100 91 2 74 00 74 1 2/0.010.0200 4 5 4.8. 19.0 23.8 2 9.1 18.2 27.3 00 00 00 00.0 O 0 0.0. 0.0 0,0 0 00 00,00 0.0 00 0.0 08/0 0.0 0.0|0.01 0 0.0 00 0.0 ee 00 0.0 0 0.0 0.0 00 800 0.0 0.0 0.0 0 00 0D 0.0 0.0 0 00 00,00 0.0 0.0 0.0 00; 0.0 110.0 0.0 10.4 0 0.0 0.0 0.0 0.0 10.0 0.0 0.0 0.0 0,0 0 0,0 0.0 00 / 7.4 0 1 4.8 00 48 0.0 00 00 10.74. 2. 200 00 200 3 3. 14.3 0.0 143 / 91 00 191 00 00 00 0 0 0,0 0,0 0.0 / • I 1 48 00 4.8 12 9.1 91 18.2 1210 27/63037.0100 9 11090.01 10.01100. 14. 7 21 66.733.3100. 6 5 11154545.5100. Evaluation 0-Balloon 1-Astronomical 2-Airciaft 3-Light Phenom. +-Birds S-Clouds, Dust, etc. 6-Insutfic. Into. 7-Psychological 8-Unknown 9-0 ther Total Evaluation 0- Balloon 1-Astronomical 2-Aircraft -3-Light Phenom. 4-Birds 5-Clouds, Dust, etc, 6- Insuffic. into. 7-Psychologica! 8-Unkno Unknown 9-Other Total 6/SECONDS - 5 MINUTES Number 6-30 MINUTES Number OVER 3O MINUTES DURATION NOT STATED Per Cent Per Cent Number Per Cent Number Certain Doubtful Total Certain Doubtful Total Certai: Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfull Total Per Cent Certain Doubtful Total 3 2 5 9.1 6.115.2 6 0 10 614.3 0.0 14.3 3 / 23.8 4 9.4 3.112,5 5 1.3 6.6 1.9 2 4. 6.L 6./.12.2 10 23.8 00 10 219 9.4 31.3 18 /1 9 11 27.3 2.9 23.1 /4.5 38.2 2 6.1.33.4 3 7.1 14.3 21.4 12.4 2 2 2 6.2 6.2 12.4 9.2 13 10.5 0,0 0.0 0.0 0.0 2.4 0 0.0 6. 2 4.2 00 0.0 0.0 0.0 0.0.0.0 0 0.0. 0.0 0.0 0,0 0.0 0.0 0.0. 00 0,0 0.0 00. 00 1 0.0. 2.4 2.4 0.000 00.0.0 4 112.1 00 12./ 0 0.0 0.0 0.0 3 / 00 0.0 3 11 0,0 / 2.4 7.1 00 2.4 5/5.2 00 15.2 11 262 0.0 26.2 4-0 0.0 00 0,0 10 10 13.2 00 13.2 3.1 0.0. 3.1 0.0. 0.0 5 115.6 00 156 21 0.0 2/ 276 00 276 4 12.10.0 1/2./ 0 00 00 0.0 15.6 3.118.7 2 2 26. 00. 214 122 6 33 818 18.2100. 135 2 42 833/16.8100|23 9 32 71.9 28.1100 5911 76/77.6.22.4100 TABLE _ A180 EXALNATION DE ALL SIGHTINES FOR ALL YEARS COLORS. REPORTED FOR DURATION DE SIGHTING, GREEN OR GLOWING GREEN OBJECTS 5 SECONDS DE LeSS 6-10 SECONDS 11-30 SECONDS 31-60 SECONES Number Per Cent Per Cent Number Per Cent "Certain' Doubtfull Total" Certain Doubtful Toial CertainT Doubtfull Total Certain! Doubtful Total Certain Doubtful Total Certain Doubtful Total Number Per Cent Certain| Doubtful Total Certain Doubtful | Total 0 0 0,0 0000 0 00 00 0.0 00 00 10.0 0 00 00 0.0 31-52 2 83333 55.989.2 / 15 453636 68.1 2 9 50.0:14.3 64.3 / 16.7 00 167 2 :2.2 0.0 2.2 1 45. 00. 4.5 00 71 7./ 00 0.0 0.0 0 00. 0.000 0 00. 0.000 00. 0.000 0 00 00 0.0 00 0.000 00 00 0 0.0 0.0 0.0 0 00 00 0.0 00. 00 00 0 0.0 0.00.0 0 0 00 0.0 0.0 0.0 0.0 0.0 2 22 0022 1 45, 0.0 45 0 100 00 00 162. 0.0 14.2 0.0 00 0.0 0 0.0 0.00.0 0.0. 00 00 0.0 0.0 0.0 4. 4.3.00 4 3 1 2 13. 202.3 5 227 0.0 22.7 0 00 0.000 0 4 0 4 234. 0.0 286 4 4 662 00 462 0 00 00 00 0 00 a0. 00 40 53 93 43057.0:100. 8: 14 22 36.463.6100. 11 3 14|78.6 214100 6 € 100.00.0 100 Evaluation 0- Balloon I-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Cleuds, Dust, etc. E Insulfic. Into. 1-Psychological 8 Unknown SOther Total 6/ SECONDS - 5 MINUTES 6-30 MINuTes OVER 30 MINUTES DURATION MOT STATED Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain (Doubtful Total Certain Doubtful Total Certain Doubtful | Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful| Total Certain | Doubtful Total Certain Doubttul | Tota 0.0 71 0 9.1 0.0 9./ 116.7 00 167 0 00 00 00 0.0 21 11 6 2 4 91 223 364 1 167 00 list 16 0 27 43 28.1 41.4 755 0.0 42.9 42.9 2 18.2 0.0 182 1 167 00 16.7 2 2 3 18135 53 00 00. 00 0 00 00 2 182 00 18.2 0. 0000 00 00. 00.00 0 00 00. 0.0 0 00 0.0 00 0 00 00 00 0 aol 00 0.0 0 a0 0.0.00 00 00 00 000 00 00 0.0. 4/ 0 00 00. 00 4 28.6 00 28.4 0 2 0 00 0.0 00 0.0. 0.000 0 00 0.0 00 00 00 0.0 7.1 2 182 00 18.2 6 4 4105 00 10,5 4 10 00 1e 00 1.1 0 00 0.000 7 114 1500. 50.0/000. 8 3 1// 722|21.3100. 3 61 50a 00 500 0 00 00, 0.0 7.0 18 00 18 6100.0 0.0 100. 28 29 57.49.150.9.100. 223

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Evaluation o- Balloon ¡ 1-Astronomical 2•Aircraft 3- Light Phenora, 4-Birds S-Clouds, Dust, etc. G insuffic, into. 7-Psychological 8- Шпклоит 30ther Total Evaluation 0- Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. Info. 7-Psychological 8-Unknown other Total Evaluation o-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4 Birds 5-Clouds, Dust, etc G-Insuffic. Into. 7-Psychological 8. Unknown -Other Total Evaluation 0- 8alloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 tasuffic. into. 7-Psychological 8- Uknown 9-0 ther Total 0 / L. 3 000 5 51 47/98|520/48.0100|23|15|3860--39510036 12/48|25.025.0100. 281 8 36/71.8 22.2100 61 SEcONDS - 5 MouTes Number Per Cent 6-30 MINUTES Certain nadia mill Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 16 OVER 30 MINUTES 3 0 3 1.0 0.0 0.0 0.0 0.0 0.0 0.0 2.9 48. 0.0 14.8 2 2 0 2 29 9 0 0.0 0.0 8.2 45 63 0.0 0.0 0.0 0.0 0.0 8.2 0 .0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 DURATIeN NOT STATED Certain Dousthull Total Certain Doubtful | Total 2111.8 14.2 _4.2 16.5 1.1 2/3 9.4 3.9 13.3 10.0 0.0 0.0 00 23 0.0 0.0 23 0.0 0.8 18.1 0.0 0.0 0.0 0.8 0.018.1 29 4 9 2 69. 35104/66.333.7100. 1238110655 34.11100. 38 11. 49774224100V06 21127/835 165.100 TABLE A184 2 L 2 2 0 ! 00 2 0 0 0.01 0.0 00 4.100 3 4.5 4.5 0.0 45 13.6. 0.0 13.6 2 9100 9.1 0 0.0 0.00.0 5.3 0.0 5.3 0 00 00 0.0 4 21/0.0 21.1 0 0 00 00 00 0.0 0.0 00 19 0.0 3 3.2 19 56 8 148 00 148 0 0.0 00 00 2 1/4 8 22/63.6364 l0e. 1/3 6 19 6843161093321|54 611 389 100. 30 0.0 2 49 0.0 0,0 4.9 0/00 0 00 00 0.0 9 22.0 0.0 22.0 1 24 00 2.4 11 41 73.2 26.8100. 6I SECONOS - 5 MulUToN Number 6 - 30 MINUTES OVER ZO MINUTES DURATION NOT STATES Per Cent Certain Doubtful Total Certain | Doubtrul Total ¡Certain Doubtful Total Certain Doubtfull Certain | Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful | Total 18 25 217. 8.4 30./ 21:3/12.0 1267/0.0 34.2 3 14.4 3. 3 17.2 / 13 10 2,3 12 0.0 1.2 1.0 1.2 1.2 4 10.0' 3.3 133 /5712.0 27.7 10 19 10.8 12.0 22.8 4.4 0 1.2 6.2 4 1.1 3.3 0.0 2 1.2 0,0 0.0 6.7 20 4 22.2 4.9 26.6 2.4 0.0 1.2 0.0 0,0 0 1.2 0.0 1.2 0.0 1.2 0.0 00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0,0 11 0.0 0.0 0.0 0.0 0,0 0.0 6 7.2 0.0 1.2 0.0 11.2 10.8 0.0 10.8 3.3 0.0 33 9 0.0 0.0 1.2 1.2 0.0 2 1.2 0.0 20 1.2 20 222 0.0 22.2 0.0 20 20 24.10.0 24.1 3 4 12 3.6 4,8 2. 15 118.1 300 1.1 9 30.0 0.0 7.2 0.0 16 18 1.4 17.8 3.3: 3.3 7.8 0.017.8 0.0 / 1.8 62/21|83|142|25.3100 159 24 83 71 28.9 100. 125 5 30 16.2 16.2100. 79 11.90/81.912.2100 224

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Evaluation O- Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuffic tnfo. 7-Psychological 8-Unknown 9 Other Total Evaluation 0-Balloon antonomie? 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic, Into. 7-Psychological 8-Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insutfic. Info. 7-Psychological 8-Unknown 9-Other. Total Evaluation 0- 8alloon ¡l-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Oust, etc. 6 Insuffic. Info. 7-Psychologi cal 8-Unknown 3 Other Total TABLE A185 EVALUATION DE UNIT SIGHTINGS FOR ALL YEARS BY COLORS REPORTER EOR DURATION SIGHTING OBJECT. COLOR 5 SECONDS eR LESS 6-10 SECONDS 11-30 SECONDS NOT STATED 31-60 SECONDS Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubiful Total Certain Doubtful| Total Certain | Doubtiul! Total Certain Doubtful Totsl Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 6 0.0 3.4 34 / L 2 71: 7114.2 0.0. 2.9 5 12.0 8.0 200. 17.319.20.758.6 5 5 6 357 71.428 13.8 3.917,2 2 / 3143 21 21.4 00 0.0 0.0 0/00 0.0 0.0 4 0 5 11.8 29 2.9.147 3 2 / 3 80 40 120 4 9143 118 265 P 010.0. 0.0 0.0 0.0 0.0 0.0 0 0 0.00.0 0.0 5. 5 17.2 0.0 17.2 0 0 10 00. 0.0 3.4 0.0 3.4 2 000/00 0. 0.0 0.0. 0,0 0. 0 00 0.0 DD. 0 00 0.0 0.0 1.0.0 2.9 2,9 / 71|0.0 0 7 20.6.0.0.206 0 00 0.0 0,0 0 0.0 0.0 0.01 2/4.3 0.0 1445 4 • 4 118 0.0 113 9 0000001 512.0. 8.0 20,0 0.0 0.0 0,0 0.0 0.0.00 0.0 0.0 00 8.0. 0.0 8.0 0.0 00 0,0 2 360 0. 0 360 0.0 0.0 0.0 0. 0.0 0.0 00 / 1 00 4.0 HO 2/1 8 29 724.27.6100| 3 14 786. 21. 4 100. 22 12 341647 35.3100/ 19 6 25 76.024.0100 61 SECONDS - 5 MINUTES 6-30 MeNuTES QUER 30 MINUTES DURATION NOT STATED Per Cent Certain Doubtul Total Certain canal Total Number Per Cent Number Per Cent Number Certain | Doubtfull Total Certain, Doubtfull Total Certain Doubtful Total Certain Doubtfull I Total Certail Duti Total Contain ON TOTa 12 17 17,9 7.5 254 12 20 10,5158.26.3 2 5.32.6 79 710.1 110.4 4.2/4.6 2.112,5 13 2 20 6.2 3.3 9,5 0.0 15 6 12 4/ 13,8 5,7 16 13.$ 10.4238 12 5 17 /н:8 6.6 27,4 4 2.1 6.2 8,3 29 18 35 8.1 19.5 8.616,7 / 3 3.0 1.5 4S 0.0 0.0 0.0 0 0.0 2 10 0.0 0.0 ,3 0.0 0,0 2 4 2 8.0 2 3 20 1.0 0.0 0.0 0.0 4.2 4.2 0,0 D.5 1.5 0 0.0 0.0 0.0 0,0 5 21 25 0,0 75 0.0 0.0 3/3 0,0 0,0. 31,3 4 1.0 0.0 60 12 2 10 2 12 2 1.3 15.8 18.20.0 18.7 5.3 0,0 53 125.2 0.0 26 2.1 0.0 3 4 25.2 0,5 13.2 0.0 13.2 / 15 15 31.2 3/2 0.0 33 1,4 1,9 9.2 4 0.0 15.7 0,0 4 83 0.0 8,3 12 33 17. .15.2 8.1 0.0 21 53 14 62/79.120.9.100 56 20.76/73.7 26.3100.142 6 48 /87.512.5100 1694/210|105119.5100 TABLE A18k - EVALUATION OF UNIT SIGHTINGS FOR ALL YEARS BY COLORS REPORTED FOR DURATION. DE SIGHTING ORANGE OR GLOWING ORANGE ORJECTS 5 SECONAS OR LESS 6-10 SECONDS 11-30 SECeNCAS 31-60 SECONAS Number Per Cent Per Cent Per Cent Per Cent Certain Doubttul) Total Certain Doubtful Total Number Certain Doubtful Total Certain Doubttul Total Number Certain Doubtful Total Certain Doubtful Total Number Certain Doubtful Total Certain Doubtful Total 0 0.0 8.0 0.0 0 0.0 0.0 31 178 489 0.0 0.0 00 2 3 5.6 11.1162 8 22 7. 46.7 0.0 46.7 4 8 211 211 2 2 13.3/77 472 4 /1.1 11.1.22.2 4.20.0 6.2 26. 25.3 10.6 H /LI 0.0 0,0 D.e 22.2 0.0 0.0 0 0.0 0.0 0.0 00 0,0 20 2.2 22 0.0 4 8.9 0.0. 0.0 8.9 0 0 5.3 0,0 5.3 0 5.6 0.0 5.6 0.0 0.0 00 0,0 0,0 00 0.0 0.0 0.0 0.0 5.6 222 0.0 5.3 0,0 0,0 1. 4 22 11. 1 0.0 /1.1 53 5.6 6.2 2.2 8.9 o o 6 29 16 451648 35:6100. 14 3 20.0 0.0 200 / 6.70.0. 69 1 15 933. 69100. 13 6 31.60.0 3116 4 1 9 0.0 5.3 53 4 222. 0.0 222 0 0.0 0.0 0.0 6 19 684 31.6/100.1/21 6 18 66.7 33.3100. 61 SECONDS - 5 MINuTEr 6-30 MIUTES OVER 30 MIxUTES DURATIAN MAT STATEI Number Per Cent Per Cent Per Cent Per Cent Certain Doubtful Total Certain | Doubtfull Total Number Certain Doubtful | Total Certain] Doubtful Total Number Number Certain Doubtful| Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total 3 8 16.1 10.216.3 2 $ 16.2 5.6223 3 0 3 20.0.0.0 20.0 2 8.4 4 14 18 7,2 3 3 0.0 6.11 3 5.62.8 4 -7 200 26.7.467 614/4.3 10.125.0 4 12 8. 2. 16.3 245 2 2 4 2:65.6 11,2 1 00 67. 67 2 4.1 4.1 5 13 143 8.9 23.2 0,0 6 16.2 0.0 16.7 0 0.0 0 . 162. 0.01 6.7 0 0,0 111.8 0,0 1.8 0.0 0.0 0.0 0.0 0. 0 00 0.0 0.0 О ся 0.0 0.0 0 0 2 0.0 0.0 510.2 0.0 0.0 0.0 3 2.0 4.1 10.2 0.0 0.0 / 1 28 28 6./ 10.0 0 0 0.0 0.0 0.0 0 0. 0 00 0.0 0.0 0.0 0.0. 0.0 0 0.00.0 0.0 1 00 62 47 7, 12.5 0.0 125 18 00 18 13 13 26.11 0.0 26512 12333. 0.0.333 / 1670.0 6,7 11 19.6 е.0 19.6 3 3 161 00 2 2 0.0 5.6 56 6.2 00. 67 5. 18. 218.9 31 1 18 49 63.3 36.7100 29 1 36 806. 19.4100. 6 15 16004001004016 56 74 28.6100. 225

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Evaluation 0-Balloon 1-Astronomical 2-Aircratt 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. G Insuffic tuto. 7-Psychological B-Unknown 9 Other Total Evaluation (0-Balloon 1-Astroncmical 2-Aiscraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, eic. 6- Insuffic. info. 7-Psychological 8-Unknown s-Other Total Evaluation 0-Balloon I-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological 8-Unknown other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-girds 5-Clouds, Dust, etc. 6 Insuffic into. 7-Psychological & Unknow 9 Other Total TABLE AL8T EVALVATION DE UNIT SIGHTINGS EOR ALL YEARS.. _ 84. COLDES REPORTED FOR QURATION _ OF SIGHTING, REO OR GLOWING RED 5 SECONDS eR LESS 6-10 SECeNDS 11-30 SECONDE 31-60 SECONDS Number Number Per Cent Per Cent Per Cent Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Number Certain Doubtful Total Certain Doubttal Total Number Certain | Doubtful Total Certain Doubtful Total 8,0 0.0. 0.0 00. 0.0 0.0 56 0.0 5.6 2 2 418.2182 34.4 9 451 409 8.4 5 50.0l 00 50.0 1 9.11.0 9.1 0000000 12. 33.3 16.2.500 000 2 9.1 0.0| 91 2 10.0 10.0 20.0 56. 16.2.223 2 3 91 18.2 27.3 0 0.л 9,01 0.0 0 0.9 0,0. 0,0 0 00 0.0 00 0.0 0.0 0.0 0 o 0.0 0,0 00 0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0. 00 00/00 0.0 0.0 0.0 0.0 0.0. 0.0 0.0 0,0 0.0 / 10.0 10.0 0.0 0.0! 0.0 20 0.0 0.0 0 4.6 0,0 4.6 0.0. 0.0 00 oN 2 220.0 0.020.0 0.0 0.0 0.0 00 L 0.0 0.0 0.0 00 0.00.0 5:6 0.0 5.6 00.0 0.0 0.0 0.0 0.01 0.0 00 0 0.0 0.0 00 0.0 11.1 91000. 5,6 0.0 5.6 91 91 18.2 1/3 9/22 59140.9100. 9 / 10/900 10.0 100.12 6 / 8 66233.3100. 6 154.5 455100. 61 SECONDS - 5 MINUTES 6-30 MINUTES Number OVER 30 MINUTES Per Cent DURATION NOT STATER Numbes Per Cent Certain Doubtful Total Certain Doubtiul: Total Certain Doubtfui Total Certain Doubiful Total Number Per Cent Number Per Cent Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total 3 2 2 5 /1.1 7.418.5 4 0.01.1 3 4 143 4.819.1 0 5 5 0.0 8.6 6 2 8 28.6 195 38.1 15 5 20 -25.9 8.6 3 3.7 74 11.1 16.2 0.0 16.7 8.6 34.5 2 9 2:9 2.4.33.3 3 8.3 16,2 125.0 2 3 9.014.3 2 $ 112.1 1.7.13.8 0 00 00 0.0 2.8 2.8 2 2 48 0.0 0.0 9.5 9,5 0.0 0.0 0.0 200 0.0. 00 0.0 0.0 D.0 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 00 0.0 4 3 3 2.8 2.8 0 0,0 0 0.0 114.4. 0.0 14.8 8.3 0.0 2.8 8.3 0 0.0 0.0 0 0,01 0.0 0,0 0.0 0.0 2.8 4 0.0 0.0 4.8 0.0 4.8 11480.0 148 306 0.0 30.6 4.8 0.0 4.8 2 74 0.0 1.4 0.0 0.0 0.0 2. 48 4.8 9.6 10 13 2 10 17.2 0.0 0.0.17.2 0.0 13 1.0 22.4 00 0.0 22.4 34 0.0 | 3.4 121 6 22 778222100 29 7 36 806194100 13 8 21619 38.1100.49 11 58 8/.019.0100. TABLE A188 EVALUATION DE UNIT SIGHTINGS FOR ALL YEARS COLORS REPOCTER FOR OURATION OF SIGHTING GREEN GLOWING GREEN OBJECTS 5 SECONDS DA LESS 6-10 SECONDS Number Number 11-30 SECONDS Number 31-60 SECONDS Per Cent Per Cent Per Cent Number Per Cent Certain | Doubtful Total Certain Doubtful Total Certain | Doubtfull Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total о 0.0. 00 0 0 00 0.0 0.0 0 .0 22 35-62 31.5486 861 1011 6.266.213.4 1 9 0.0 0.00.0 000 00,0.0 163.61 18.281.8 1 50.0 0.0 50.0 2 2128 0.0 2.8 0.0 6.2 00 9.1 0.0 00. 00 0. 0.0 0.0 0.0 6.7 0 91 0 0.0 2.0 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0. 0.0 0.0 0.0 0 0.0 0.0 0.0 2 28 0,0 2.8 0 0.00.0 10.0 46 0.0 5.6 / 2 14 /$ 2.8 0 0 3 0 00 0.0 0 0.0 0,0 0 0.0 0.0 0.0 00 0 00. 0.0. 00 0.0 0.0 00 0 0 00 0.0 0,0 00 0.0 0.0 0 0.0 0.0 0.0 0 0.0 00 10.0 0 0.0 0.0. 00_ 0 0.0 0.0 0.0. 0 00 00 00 0 3 20.00.0 20.0 1 0 1 91 00 91 1 0 / 500 00 50.0 0 0 00 00 00 0 0 0. 00 00 00 0 0 0 00 00 00 36 36 72 50.0500.100. 5. 1015/333/66.7/100|8131/127/2231001010 21000.0100 61 SECONDS. 5 MINUTES 6-30 MINUTES Number Per Cent Number QUER 30 MINUTES DURATION NOT STATED Per Cest Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubthul Total Number Per Cent Number Per Cent Cerlain (Doubtful Total Certain Doubtful Total Certain Doubtful! Total Certain Doubtful | Total 8.3 0.0 8.3 9./ 0.0 9./ 0 16.2. 0.0. 1607 0,0 8.3 18.3 9.1 273 364 0 116.7 00 1k7 14 0 0 0.0 0.0 0.0 19 33 30.4 41.311.7 0 0 0.0 50.050.0 0 0 0 0.0 0. 010.0 2 2 2 18.2. 0.0 18.2 1/6.7.0.0/1607 0 2 3 12.2 4.3 0.0. 0.0 00 2 182.00 18.2 6.5 0. 8.0 0.0 0.0 0 00 0.0 0.0 0s 0 0.0 0.0 0.0 0 0.0 0.0 0,0 0 0.0. 00 00 00 20 0 0.0 0.0 0.0 0 8.3 0,0 8.3 0.000 0.0 00 0,0 0.0 0.0 0.0 0 0 0.0 0.0 00 00 13.0 0013.0 0.0 00 0.0 0.0 0 0 0.0 0.0 00 00 2 5 0.0 0.0 2 116.70,0 116.7 8.3 0 0 0 83/00 2 0 18.2| 0.0 18.2 3 50.0 0.0 50.0 3 6.5 0.0 65 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 2.2 7 12 41.7593100. 8 3 11/172.7/223100 6. 6/100.00.0 100 25 21 46 543 45.2100 226

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Evaluation 0-salloon 1-Astronomical 2-Aircraft 3-Lipht Phenom. 4-Birds 5-Clouds, Dust, etc. E Insuftic into. 7-Psychological B-Unkcnown 9-Other Total TABLE A189 EVALUATION DE UNIT SIGHTINGS FOR ALL YEARS BY COLORS REPORTEL PURATION SIGHTING, YELLOW OR GLOWING YELLOW ABLECTS 5 SECONDS OR LESS 6-10 SECONDS 11-30 SECONAS 51-60 SECONAS Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubfful Total Certain Doubtful, Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 00 0.e 0.0 0 10 0.0: 0.0 2 63 6.312.6 0. 00 0.0 0.0 10 5 15 40.0 20.0 60.0 255410156 / 4 18.8 6.3 25.1 6 7 1363 3.9 41.2 2 8.0 10 16.0 4.0 4.0 1 111 0.0 /1.1 3 3 188 0.0 18.8 3 2 5 12611.8 294 0.0 o de R.0 0.0 0 00 0.0 0.0 0.0 5.2. 5.9 4.0 4.0 1 00 11 11.1 1.0 00 00 0,0 00 0.0 0.0 0.0.0.0 0 40 0.0 4.0 0 00 0.0 0.0 0.0 6 3 6.3 00 00 0.0 0 00 00 0.0 3 0.0 0.0. 0.0 O 00 0.2 0.0 L 3. 18.8 00 18.8 0 00 00 0.0 3 12.0 2 1 63 00 6.3 0.0 120 2. 222. 0.0.222 2 2 125 00 12.5 0 0.0 0.01.0 0 00 0.0 00 0 0 o se 0.0 0.0 / 3 0 14.2 0.0 5.9 311.6 00/7.6 0 00 00 0.0 171 8 25/68.032.0100. 8 9 88.911 leal13 3 16/812 188100.13 4 11 176523.5.100 Evaluation 0-Balloon 1-Astronomical 2-Aireraft 3-Light Phenom: 4-Birds S-Clouds, Dust, etc. 6-insuffic. Info. 7-Psychological &- Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft -3-Light Phenom. +-Birds S-Clouds, Dust, etc 6- Insuffic. Info. 7-Psychological 8-Unkлown 9-0 ther Total 61 SECONDS - 5 MINUTES 6-30 MINUTES Number Per Cent Number Per Cent Duce 20 MINUTES • DURATION NOT STATES Per Cent Number Per Cent Certain Doubtful Total Certain Doubtfull Tolal Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 3.0 0.0 3.0 6 3 2 3.0 9.1 9/6.2 8.1243 4 3 2 1 23517.6411 1.522.6 3 6.1 8 13.47 8.1 21.6 0 0.0 /1.8 118 2 716.1 4 3 .7 12.99.2'226 15 2/2.242. 444 3 2 3 6/13.0 9.1 3 7 10.8 8.1 18.9 / 2 5.9 5.9 11.8 / / 3.2 00 3.2 3 8.1 0.018.1 0 20 00 0.0 3.2 0.0 3.2 0.0 0.0 0 0.0 0.0 0.0 0 0 0.0 00 8.0 0.0 0,0 3 0 3 91 0,0 0.0 0.0 0.0 00 00 00 0.0 9.1 2.7 0.0 2.2 G 00 0.0 0,0. 0.0 0.0 00 0.0 0.0 0.00.0 0.0 0.0 242 00.243 6/6.20.0 16.2 2 3 2 11.8 0.0 128 0/0 5 161 00 16.1 0.0 0.0 00 00 00 0.0 0 3 176 0.019.6 2 29.0 00 29.0 Re 2.0, 0.0 54. 2.2 8.1 0.0. 5:9 5.9 3.2 0.0|3.2 2211/33 667333100. 27 10 37 73.0.27.0 100.110 7 12 588 41.2100. 26 5 31 83.9 16.1100. TABLE A 190 EVALUATION DE UNIT SIGHTINGS EOR ALL YEARS BY COLDES REPORTED EOL AURATION OF SIGHTING, OBJECTS QF COLORS 5 SECeNAr eL LESS 6-10 SECONDS 11-30 SECONAS 31-60 SEcerDr Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful! Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Number Per Cent Certain Doubtful Total Certain Doubtfuf Total 20 0.0.0.0 2 2, 13.3 0.0 13.3 2 3 5.6 1/.1 16.7 2 1.7, 7.1 15.4 26 395-209 604 / 6 33.3 6.2 400 1 5 22256.278 0.0 72. 7.7 5 11.6 2.3/3.9 2 2 0.0 13.3 133 4 1 5 22.2 56 278 2 3 5 15.4.23.1 38.5 0.0 0.0 / 0.0 6.2 5.6, 00 5.6 0 00 0.0 0.0 2.3 2.3 2.0. 0.0 0.0 00 5.6 56 0.0. 00. 0.0 0.0 2.3 3 0 3 10 0.0 2.3 0.0 0.0 0.0 0.0. 0.0 0.0 0 00 00 0.0 2.0 2 213.3 0,0 13.3 00 00 0.0 0.0 0.0 00 0 00 00.0.0 0. 0.0 0.0 0.0 / 00 16 5.6 0 00 00 00 01 6 140 0.0140 / 1 670061. 2 0 2110.0 111 0 4 30.8 0.0 308 0 0 00 0.00.0 1 0 1 62 00 61 0 0 0 00 00 0.0 0 1 77.0.0 7.7 31 /2/43 22.1 27.9 100.1/11 4517332621100/21 6 8 66.7333100 8 5 13 16/5 38.51100. Evaluation Q-Balloon 1-Astronomicai 2-Aircraft 3 Light Phenom. 4-Birds 5-Ctouds, Dust, etc. 6-Insutfic into. 7-Psychologital &-Unknow $-0thes Total 61 SECONDS - 5 MINUTES 6-30 MINUTES QUER 30 MINUTES DURATION NeT STATED Certain Doubtul rolal (Certain Out Total Certain outri Total Ceti octil Total Fortin Dortil Total Cartin eret Total Certain Doubtil Total Certain eat Tora 2 3 33. 6.7100 62 3.3 10.0 16.7/3.3,300 3 4 3 a 4.8 9.418. 0 1 91 00 91 2 3 49 24 73 6 15 6 3.118. 4 273 9/364 110 414. 244. 98 34.2 4 8 12.512.5 25.0 0 2 18.2: 0.0 18.2 6 3 19146 73 21.9 0.0 3.3/33 1 31 0.0 3.1 0 0 00. 0.0 00 0 0 10 0.0 20 0 0 0 2 10, 0 0 2,0 0,0 0.0 0 0 0.0 0.0 00 2.0.0.0 0.0 3.3 0.0 3.3 6.2 3.310.0 0 0 0.0. 0.0 00 3.10.0 3.1 3 10 0 0.0 0.0. 0.0 33.3 0.0 333 0.0 0,0 0.0 9 28.1 3.0 281 1.0 3.1 3.1 0 0 0 3 0 0. 0 0 00 0.0 00 0 00 00 0.0 0 0 00 00 00 0. 0.0 00 00 0 0 0.0 0.0 00 6186 0.0 16.6 1 91 0.0 91 1 2.4, 0.0 2.8 3 27.3.0.0 21.3 2 2/21 00 17.1 0 00 00 00 0 1 00 2424 21 9 30 700/30.0| 100.|/231 9 |32/71.9 28.1100. |10 11190.9.9.1 100. 32 9 41 78.0 22.0100/ 227

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Evaluation 0- Balloon 1-Astronomical 2-Aircratt 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. Einsuftic Into. 7-Psychological 8-Uzinown S Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircratt 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic, Into. 7-Psychologica) 8-Unksown Other Total Evaluation 0-Balloon 1-Astronomica! 2-Aircraft i3-Light Phenom. 4Birds 5-Clouds, Dust, etc. 6- Insuftic. into. 7-Psychological 8- Unknown 9-0ther Totad Evaluation 0- Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. E Insuffic into. 7. Psycho lopical 8- Unknow 9-0ther Totat TABLE AISL EVALUATION DE OBJECT SIGHTINGS FOR ALL YEALS BY COLORS REPORTEO EDE DURATION OF SIGHTING, WHITE OR GLOWING WHITE OBJECTS 5 SECRERS OR LESS 6-10 SECONDS 11-30 SECONDS 31-60 SECONDS Number Per Cent Number Per Cent Certain] Doubtful Total Certain | Doubtful Total Certain Doubtful | Total Certain] Doubtfull Total Number Per Cent Mandel Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 3 20 4 1.3 3.9 512 0.03.1 3.1 / 2 3 26.6.3 7.9 / 0,0. 2.8 2.8 21 46.27.332.5578 1411.6 28.143.2 13.2 5.3185 4 2 7 7 11 5.2 9.114.3 3 4 2 9.4 12.5 219 6 13.2 15.8. 29.0 LAu 5.6 J.6 12 2 2 0.0 3./ 0.0 / 0 2 26 2.6 1.3 0 1.3 2.6 3.1 00 0.0 0.0 0.0 0.0 0,0 0,0 0,0 0.0 0 1.3 0.0. 1.3 0.0 0.0 0.0 3 0 3 9.4 0.0 9,4 0.0 0.0 0.0 7 e 9.1 0.0, 9.1 18.8 0.0 11.8 0 0 10 2 00 2.6. 2.6 0.0 0,0 0.0 0,0 0,0 0.0 4 0,0 105 0,0 0.0 0.0 10 26.3 0.0 26.3 5 3 • 6 12 13.9 0.0 11.1 25.0 0.0 0.0 8.3 2.8 0,0 0,0 0.0 6 16.7 0.0 16.7 0.0 0.0 0.0 133.3 0.0 L 4 3.9 12 33.3 1.31.2 0.0 0.0 00 0 2 5.3 0,0 5.3 0 0.0 0.0 0.0 38|39 77 49450. 6100.118.14/32.56.343.9100.22 1/381 17/.1. 28.9100. 1 28 8 36 77.8 22.2 100. 6/ SECONDS - 5 MINuTes Number Per Cent 6-30 MINUTES Number Per Cent OVER 30 MINUTEL Number Per Cent DURATION dOr. STATED Num ber Per Cent Certain Doubtful Total Certain, Doubtul; Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtul Total Certain Doubtful Total 15 18 33/158 18.9. 347 18.12. 30 19.4 /2.9 32.3 3 1118.6 1.0.25.6 13 18 12.6 4.917.5 2 3 2.1. 3.2,53 8 18 10 4 114 10.8 4.3 15.1 11. 5 16 256/1.631.2 10 18. 9.2 10 10.5 8.4.18.9 3 0 2 10 00. 0,0. 00 4 13- / 7,8 17.5 3.2 10.8 14.0 2 3 4.7 2.3 20 9 4 2.2 4.3 6.5 13 8.2 3.912.6 0,0 0.0. 0,0 0 00 0.0, 0.0 0.0 0.0 0.0 0.0 0.0,00 0. 0 0.0 0.0 0.0 3 0.0 3.2 3.2 0,0 0.0 0.0 0.0 00 00 53 0.0 5.3 75 0.0 7.5 0 0 0.0 0.0 0,0 22 1.0 _22 21.4 0.0 / 21.4 1.11.1. 2.2 26 5.4 0,0 0.0 0.0 2 3 1.9 2.9 0 26 224, 0.0 224 16 5.4 0.0 16 112,0.0 /7.2 11 11 25600 206 2 2.2 2 .24 10 0 24 23.3 0.0 23.3. 3 / 32 0.0 3,2 2 27 0.0 2 4.7 0.0 42 4 4 3.9 0.0 3.9 62/33 95653341100.63 30 93 67132.3100 34 9 73 1791/20.9 100. 8518/03 82.51175.100 TABLE A192 EVALUATION OF OBJECT SIGHTINGS EOR ALL YEARS BY COLORS REPORTED FOR 5 SECONDE OR LEES DURATION OF SIGHTING. METALILL DBJECTS - 6-10 SECONDS 11-30 SECONAI 31-10 SECONOS Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Cerain Doubtful Total Certain Doubtful Total Certain| Doubtful Total Certain Doubtul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 2 .3. %.1 2 2 0.0 /0.5 10.5 3 4 20 6.1 2 2 4 53 53 10.6 1 2 4.513.6 41145 90 2. 0.010.5 105 0 0.0 0,0 0.0 6 8 91.22.3364 / 9 42.1 5.3. 47.4 2.00.0 20 18 15 33 36.7 30.667.3 15 21 325 15:8 55.3 00000 4310.0 4.5 0.0 3.3 53 0.0 0.0 / 0.0 26 2.6 4.5 0.0 00 0.0 4.5 0.0 0 00. 0.000 0,0 0.0 8,0 00 0.0 0.0 00 00 2:6. 0.0 26 00 0.0 0.0 4.5 0,0 0.0 0.0 0.0 4.5 1 0.0 5.3. ! 2.0 0.0 2.0 2 0 2 560.0 5.6 45 0.0 4.5 0. 00 0.0 00 2 3 41 2.0 6.1 00 0.0 0.0 3 3 13.6 0.013.6 0.. 4. 211 0.0. 211 / 7 0 1214.3 0.0 14.3 2 21.1 0.0 211 2 910.0 91 0 0.0 0.0 00 0 00 00 0.0 / 2.6 0.0 2.6 14! 8 22 636364 100. 13 6 1 19 1684 31.6 100. 3019 49 612|38810029 9 38 763 23.1100 61 SECONDS - 5 MINUTES 6-30 MiNUTES QUER 30 MINUTES Per Cent Number Per Cent Number Per Cent DURATIeN NOT STATED Number Per Cent Certain | Doubtful Total Certain Doubtful! Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total 12 ≤ 22.221,6.528.6 18 2 22 29.0 /2.0 34.0 6 3 13 1.3 9. 24.012.0.%0 10 3 13/11.9 3. 6. 15.5 13 00 1.3 00 3 4 12.0. 4.016.0 4 1.2 3.6 4.8 13 10 23 16.913.0.299 10. 19 12.0 /3.3 253 / 4.0 0.0 4.0 226 48 224 / 2 1.3 1.3 1.3 12.6 0.0.1.3 0 0.0 1.3 1.3 ! 0 0 0.0 1.0 0.0 1110.0 1.3 8 000 0 0.0 0,0 0.0 0.0 0.0 0,0 10.2 0.0 10,7 1.3. 0.0 0.0 1.3 220 12 1.3 20 26.00.0 260 12 16.0 16.0 1.3 2.6 4 6 0.0 NA 0 0 0 00 19 123 8.0 0.0 0.0 / 12 00 1.2 0.0 0.0 0.0 4.0 0.0 0.0 1.2 0.0l 1.2 0.0 4.0 0.0. 0.0 10.00.0 20 120 2 8.0 8.0 238, 0.0 23.8 0.0 1.2 0.0 12 0 60111 28.0 0.0 28.0 0.01 15/29 0.0179 2 1.3 2 5.3 2.2 8.0 40 4.0 7.1|0.0. 71 77/71.9 22.1100. 52/23 75 693 30.7100. 201 5 25 80.0 20.0 100. 13 11 84 869 13.1 100. 228

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Evaluation 0 Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc, 6- Insuffic. Info. 7-Psychological 8-Unknown 9 Other Total Evaluation D-Balloon "Huo tone. 2-Aircraft 3-Light Phenom. +-Birds 5-Clouds, Oust, etc. 6 Insuffic. Info. 7-Psychological 8-Unkrown 9-Other Total Evaluation O-Balloon 1-Astronomical 2-Aircratt 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G-Insuffic. info. 7-Psychological B- Unknown: 9-O ther Total Evaluation 0- Balloon I- Astronomical 2-Aircraft 3- Light Phenom, 4-Birds 5-Clouds, Dust, etc. Ginsultic into. 7-Psychological 8. Unknown 9 Other Total LABLE A193 EVALUATION DE OBJECT SIGHINGS FOR ALL YEARS BY COLORS REPORTED DURATION OF SIGHTING, OBJECT COLOR NOT STATED 5 SECONAS OR lESS 6-10 SECONDS 11-30 SECONDS Number Per Cent Number Per Cent Number 31-60 SECONAS Per Cent Number Per Cent Certain Doubtful Tolal Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certsin Doubtru) Totall Certain Doubtful Total 0,01 1.05.0 8 2 1. 11.122.2 0,0 3.1-3,1 3 40.0 /5.0,55.0 3 222 1.1 33.3 4 9,4 3.1125 2 / 413.0 4.3 173 3 82 4313.0 5 20.0 1.01250 2 22.2 5 4 9 15.6 125. 281 : 13.0 4.3 173 0.0 1.0 0.0 8.0 0.0100 0 0.0 0.0 0.0 0 3 15.0 0.0 5.0 0,0 00 0.0 0,0 0.0 0 0,0 0,0 0.0 0 8.0 0.0 0.0 1.1 0.0 / 11 0100 0.0 0.0 0 0 10 0.0. 0.0 0 0 00 0.000 0.0 0.0 12 0.0. 00 00 00 0.0. 0,0 0.0 0.0 / 0.0 3.1 3.1 0.0 0.0 00 0.0 11. / 7 219 00 21.9 8.2 0.0 8.7 0.0 0.0 0.0/11 0.0 0.0 4 2 00 0.0 0.0 4 2.51 0.012.5 4 6 6.3 /251188 - 00 0 0.0 0.0. 0.0 9 39/ 0.0,39.1 0.04.3 43 15 15 20|75.0/25.0 100. 6 3 9/66.733.3100.21 11 32 65.6.34.7000 19 4 23/826.11.4 100. 6/ SECONDS -5 MINuTES 6-30 MINUTES QUER 30 MINATES Number Per Cent Number Per Cent Number DURATION NOT STATED Per Cent Certain | Doubtful| Total Certain Doubtfu Number Per Cent Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Totad 12 3 15 - 19.7 4.9. 24.6 8 11. 19. 11.1 18.3 26,4 3 2 5 1.2 5.1 12.8 4.15 6.6 / 0,0 1.6 1.0 2.4 9.0 3 / 23 90 48 13,8 - N 1.6 11.5 24.6 5 42 2.8 3 47.7 15/301 12 ≤ 17 16.2 67 23,4 4 26 2.6103 7.710.3 12 16.28 1.2 303 1.6 4.9 0 0.0 3 9.6 16.8 3 0.0 0.0 0 00 0.0. 0.0 1.2 0.6 1.8 0. 0.0 0.0 0.0 0.0 0 1.4 0.0 0,0 1.4 0.0. 0.0 3 3 4.9 14. 0.0 4.9 11 15.3 0.0/53 2 8 2 5. 1. 0.0 5.1 2 2 3 1.2 0.6 18 0.0 0.0 00 0 0.0 0,0 0.0 8 20.110.0 205 48 0 48 28.7. 0.0 28.2 0.0 0.0 00 2 28 0.0 2.8 20 ...20 132.8 3 - 41.8 0.6 2.44 32.8 1 26. 0.0 24 9 125 0.0 12.5 0 11 282. 0.0 28.2 29 D 29 1740.0 -17.4 4 € 66 00 6.6 7 9.7. 0.0. 9.7 4 0 4 10.3. 0.0 10.314 0 14. 8.4. 0.0 8.4 49/12 61 80319.2100 53 19 72 73 6 264 100.33 6 39 846/4:4 100136 31 162/81418.6100 TABLE A194 EVALUATION DE OBJECT SIGHTINGS EDR ALL. YEARS...BY COLORS REPORTED FOR PURATION DE SIGHTING, GRANGE OR GLOWING ORANGE OBJECTS 5 SECONDSOR LESS 6-10 SECONDS 11-30 SECONDS 31-60 SEcONDS Number Per Cent Number Per Cont Certain Doubtful Total Certain Doubtful Total Certain Doublful Total Certain Doubtful Total Number Per Cent Number Per Cent | Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Tota! Certain Doubtful Total 6 0.0l 0.0 0.0 0 0 00 0.0 00 0 00 00 0.0 2 3 47 /3.3 20.0 275/5.042.5 0 5 461 2.0.417 2 2 4 6 25 26.0325 2 3 6.1 /3.3 20.0 5,0/S.0 20.0 3 3 25.0 0.2 25.0 2 6.2 6.2 12.4 / 2 3 6.7 13,3 20.0 0. 0 4 0.0 0,0 0.0 8.0 0.0 0,0 DA 0.0 0.0 0 0.0 0.0 0.0 0.0 2.5 2.5 0.0 0.0 0.0 0.0 6.2 2.0 0.0 0.0 80 0,0 00 0,0 0.0 0.0 0.0 00 0.0 0.0 0.0 10.0 0.0 10.0 0.0 0.0 0.0 0 0.0 0.0 0.0 6.7 0.0 6.7 -00 25 0.0| 2.5 0 0.0 0.0 0.0 0 00 0.0. 0.0 1, 6.7 0,0 6.7 5 /25 0.0 1253 - 3/25.0 0.0 25.0 0 6 32.50.0 37,5 0 4 26.2 0.0 267 4. 25.25100 / 0183 0.0 83 1 00 62 62 0 0 0 00 0.0 00 26/4 40 650350 100112/ 0 12/000/0.0100 10 6/6/62.537.5100. 9 6 15 600 40.0100 6/ SECONDS - 5 MMUTES 6-30 MINUTES OVER 30 MINUTES DURATION NOT STATED Number Per Cent Per Cent Number Per Cent Per Cent Cerlain Doubttul Total Certain Doubtful | Total Certain Number Number Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain | Doubtful Total Certain (Doubiful Total 8 6.7 11.117.80 5 2 1 179 71 25.0 3 3 200 0.0 20.0 3 1 4 16.0 2.0 80 0 4 2 3 3 00 6.7 67 2 3.61 3,61 1,2 3 10 2 4 7 200 262 467 5 12 14.0 10.0 24.0 8.9 13.3.222 3.6 3.6 7.2 1 0.0 167 67 5 11.120. 10.0 22.0 2 4.4 0,0 44 6 214 00.21.4 1 67 0.0. 6.7 1 20 0.020 0.0 0,0 00 00 0,0 00 0 00 00 00 0 0 00 00. 0.0 0,0 0.0. 00: 0.0 4 0.0 0.0 0. 0.00.0 00 0 10 00 00 0.0 3 8.9 0.0 8.9 1 3.60.0 0 0.00.0 00 2-2 3.6 1/4.0 0.0 140 14.4 66 00 0.0 00 / 0.0 6.261 1 2.0 0.0 2.0 12 3 12 242 00 267 9.32.1 0,0 3 32.1 3.6 / 6.7 00, 6.7 2. 18.0 0.0180 62 00 67 0.0 321 67 00 k.7 4 5 2.0 8.0 10.0 29 16 45 64435.6100. 23|5 28 182117.9100.1 615625325/100. 3515/5070.0300 100 229

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Evaluation 0- Balloon |J-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. (7-Psychologica) & Unknown $ Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic, tafo. 1-Psychological 8-Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenoms. 4-Birds 5-Clouds, Dust, etc 6- Insuffic. Into. 7-Psychotogical 8- Unknown 3-0 ther Total sus matton 0-Balloon 1-Astronomical 2-Aircratt 3-Ligtt Phenom. 5-Clouds, Dust, etc. finsultic into. 7-Psychological 8-Unknowm 3 Other Total FABLE A195 EVALVATION OF OBJECT SIGHTINGS EOR ALL YEARS BY COLORS REPORTED FOR DURATION DE SIGHTING KED OR GLOWING REO OBJECTS 5 SECONDS OR LESS 6-10 SECONDS 11-30 SECONDS 31-60 SECONDS Number Per Cent Nium her Per Cent Certain Doubttul| Total Certain Doubtful; Total Certain Doubtful Total Certain Doubtful Total Corian Duat Total Certain erati Total Certain Doutal robal Cortin Contal Total 00 00 00 0 00 0.0. 0.0 /16.7 0.016.7 2 2 4 20.0 20.0700 2 15 44.4 38.9 83.3 4 4 444 0.0. 44.4 / 4 2 6.26.713.3. 400 110.0 00. 10.0 2 1л 0.0. 11.1 2 11.1 111 22.2 3 4 6•7.20.0 26.7 0 00 00 00 0.0 2 10.010.0 20.0 00 0.0 0 00 00 0.0 100. 0.0 00 0 0.0 00 0.0 0 0.0. 00 0.0 0.00.0.0.0 00. 00.0.0 5.6. 0.0 5.1 9 0.0. 0.00.0 11. 7 /8 61.1:38.9100. 0 2 8 00 00 0.0 0 00 0.000 0 00 00 00 0.0 0.000 0 00 00 0.0 0 00 00. 00 11.10.0 11.1 0 00. 00.00 0 00 0.0 0.0 0 0 0.0 0.00.0 1 6J 00 67 0 00 0.0 0.0 2 22.2 0.022.2 2 213.3 0.0.133 1 10.0 0.0 10.0 0 00. 0.000 / 6.20.0 6.7 / 2 10.0 10.0 20.0 1 1 9 88911.1100. 10 5 15 66.7333100.16 € 10/0.040.0100. 61 SECONDS - 5 MINuTES 6-30 MINUTEL QUER 30 MINUTES DURATION NeT STATED Per Cent Per Cent Per Cent Per Cent Certain Doubtful Total Certain Doubthul. Total Number Certain Doubtful Total Certain Doubtful! Total Number Number Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 3 2 5 13.0 8.1 2/2 6 2 4.3 4.3 8.6 26/ 4.3 30.4 0 0.0 100 0.0 0 000.0 0.0 00 0.000 4 17.4 0.0 117.4 00 00 00 3 13.00.0 13.0 2 4 6 3 0 3 11 4 11.4 0.0 11.4 3 15.01 5,0 120.0 4 00 3.2 8.2 8 17.1 0.0 17.1 8.6 14.3 22.9 2.9 0.0 29 0 0.0 0.0 0.0 2 2 0 1 4 25.0 10.0.35.0 4 184 8.2 244 3 5.0 10.015.0 2 0.0. 10.0100 10.0 0.0.00 0.0 3 8.6 2.9 2.9 0 0.0 0.0 0.0 2.0 8.6 0.0 0.0 0.0 2.9 0.0 2.9 / 5.0 0,0 5.0 31.4 0.0 21.4 5.0 0.0 15.0 8.10.0 8.1 0.0 0.0 00 2 150 50 10.0 2 0 10 0 12 2 / 13 8 14.3.2.0 16.3 0,0 0.0 0,0 0.0 0.0 00 0 10 12 0 2 00 0.0 20 20.4 0.0 20.4 0.0 0.0 0.0 24.5. 0.0 24.5 4.1 00 41 19 4 23 82.617.4 100. 29 6 35 82.9.17.1100. 12 $ 2060.040.0100.40 9 49 /81.6 18.4 100. TABLE 2196 ELALUATION DE OBJECT SIGHTINGS EOR ALL YEARS BY COLORS REPORTED EDe PURATION DE SIGHTING, GREEN 5 SeCeNDS eR SERr GLOWING GREEN OBJECTS 1 - 10 VECONDS 11-30 SECONAN 31-60 SECONeS Mianne Per Cent Number Per ent Number Per Cent Number Per Cent Certain Doubtfull Total Certain Doubthul Total Certain | Doubtful Total Certain Doubthil Total Certain Doubtful Total Certain| Doubtful Total Certain Doubtfui Total Certain Doubtful Total 23 0 0 0.0 0.0 29 0.0 00 0.0 0.0 000 0.0 0.0 0 0.01 0.0 0.0 52 37.1475 85.2 3.3 1 8 91 63.672.2 (da/ 11. / 17.8 / 50.0 0.0 50.0 2 3.3 0.0 0. 0.0 0.0 0.0 0 0.0. 0.0 00 0.0 0.0 00 2 2 3.3 0.0 3.3 0 0.0 00 0.0 3 49 00 49 L 0 0 2 0 2.1 0.0 9.1 0.0 0. 0.0 0.0 0.0 0 0.0 0,0 0.0 0 0,0 0.0 0.0 0.0 0.00.0 0 0.0 0.0 0.0 0 2.0 0.00.0 0.0 0.0.00 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.000 0 10.0 0.0 0.0 0 0.0 0.0 0.0 00.0 0.0. 0.0 0 000.000 0 0 00 0000 0 00 0.00.0 / _ 2 18.2 0.0.18.2 / 11.10.0 1./ 1 500 0.0 50.0 2 16 16 3.2 0 0.0 000.0 00.0 0.000 0 0.0 0.0 0.0 3/30/6//508.49.2100. +17 1 364634100. 2 9 77.822.21100. 2 0/2/100.00.0100. 61 SECONDS - 5 MINUTES 6-30 MINUTES Number Per Cent Number Far thent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total / / 11.1001.1 0 0.0 11.1 11.1 5 00 556556 00. 00 0.0 2 100 00 100 0 90. 00 0.0 / 11.100 11.1 0 00 0.0100 00 0.000 / 2 2 0 2 1910.0 9.1 3 4 9.1 27.3 36.4 0 2 18.2 0.018.2 2 18.2 0.0182 0.00 0.000 00.00.000 00.0 0.000 00 0.00.0 2 18.2 0.0 18.2 11. 0.0 11.1 0 0.000.00 3 6 9 133.366-7100. 2 0 3 11 127|273100. 5. 0 OVER 30, MINUTES DURATION NOT STATED Number Per Cent Number Per Cent Certaia Doubtful Total Certain | Doubtful| Total Certain Doubtful| Total Certain Doubtful Total 1 20.00.0 20.0 0.0 0.0 / 20.000 200 0 e 1 20.0 0.0/200 0 00 00 00 0 0.00.0, 0.0,0.0 10 14 24 0 0,0 278 38.9 66.7 28 2.8 5,6 0.0 0.010.0 00 0.0 10.0 000.0.0 0.01 0.0 0.0 0 0.0 0.00.0 6 6.20.062 0 00 00 00 0 0.0 0.0 0.0 2 40.00.0 40.0 3 0 00 0000 3 8.3 00 8.3 1 2.8 0.0 2.8 5. 100.0.0.0/00./21|15 36/583|412 100 230

━ PAGE 240 ━

Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Info. 7-Psychological &-Unknown 9-0ther Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom, 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Info. 7-Psychological &-Unknown 9-0 ther Total Evaluation 0-Balloon 1-Astronomical 2- Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. & Insuftic. Into. 7-Psychological & Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenora. 4- Birds 5-Clouds, Dust, etc. E Insuffic, Into. 7-Psycholopical 8- Unknown SOther Total TABLE A192 EVALUATION DE OBJECT SIGHTINGS FOR ALL YEARS BY COLORS REPORTER EDR DURATION. YELLOW 5 SECONDS OR LESS 6-10 SECONDS SIGHTING, 11-30 SECONES OR GLOWING YELLOW OBJECTS 31-60 SECONDS Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doub/ful Total Certain Doubiful Total Certain Doubiful Total Certain Doubtful Total Certain Doubfful Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtil Total no 0.00.00.0 0 0,0 0.0 0,0 / 2 77 777 15.4 0 0.0 00 0.0 3 9 353/7.6 52,9 5. 55.6 0.055.6 77 77 15.4 15,4 77 231 2 3 11.8 59 17.7 590.0 5,9 0.0 59. 5.9 00000 0 00 0.000 5.9 0.0 5,9 6 00 00.00 2/1.8 0.0 11.8 0 a0 00.00 00000-00 / 11.1 0.0 0.0 /1.1 3 23/0.0 23.1 0 0.0 0.00.0 00 0.0 0.0 11.1/1.1 0 00 00 0.0 2 1 5 23/15.4 38.5 10.0 77. 77 0D 0 00 00 00 0.0 0.D 0.0 / 00 0.0 0.0 7,7 3 3 2310.0 23./ 0 0.0 0.0 0,0 7.7 в 00. 00 0.0 00 0.00.0 1 77 0,0 7.7 0.0 • 72 2 22,2 0.0 222 / 770.0 ..7.7 3 23./0.0 23/ 0 0.0 00. 0.0 0.000 0,0 0.0 00 0.0 12 5 12 70.629.4 100. 8 1 9188.9 11.1100. 10 3 13 769 23.1 100.1 9 4 13 69.230.8100, 6/ SECONDS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES DURATION NOT STATER Number Per Cent Certain Doubtful Total Certain Doubtful Number Per Cent Number Per Cent Number Per Cent Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 3,3 0,0 33 8 18,2 6./24.3 4 723,5 / /7.6 H.1 3.3 6.6 2 4 2 в 14,8 74 22.2 8 15.2 0.0 11.8 11.8 11. 1. 25,9 7 0 2 33 15 233267 500 33 0.0 3,3 5 4 2 3 91.243 12.1 6.1 18.2 2 / 2 0.0 5.9 59.11.8 4 7/4.8 0 00 00.00 3,7 0.0 3.7 3,7 6.1 6./ 0.0. 0.0 0.0 0 0.0 0.0 0.0 0 0 00 0.00,0 0.0 3.7 0.0 0.0. 0,0 00 0.0 0.0 00 0.00.0 0 00 0.0 0.0 0 3 8 100 0.0 10,0 0.000 0.0 3,0 0.0 3,0 2 11.8 00 11.8 0.0 4 14,8 00 14.8 0.00.0 00 00 0.0 26700 262 5/5.2 2 0.0 15.2 00 0.0 0.0 3. 6.1 30 9.1. 020 0 0.00000 0 00 a0 0.0 317.6. 0.0 176 2 7 . 25.9.00 25.9 100 5,9. 5.9 3.7. 0.0 3.7 2/1 9.30 700.30.0 100.25 8 33 258242100.10 7 17 58.841.2100\22 5 27/815 18.5100. TARLE A198 EVALUATION DE OBJECT SIGHTINGS EDE ALL YEARS BY COLORS REPORTED FOe DURATION OF SIGHTING, OBJECTS DE OTHER 5 SECONES OR LESS COLDES 6-10 SECONDS 11-30 SECONOS 31-60 SECONDS we mie Per Cent Per Cent Number Per Cent NOTOR Per Cent Certain Doubtul Total Certain Doubtfull Total Certain Doubfull Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain] Doubtful Total Certain Doubtful Total 0 0 0.0 0.0 0.0 15. 29.019.4 48.4 5 12,9 3.2/в.1 4 1 8,3 0.0 8.3 2 3 7114.3 21,4 / 2 77 71 15.4 4 33.3 0.033.3 2143. 0.0 14,3 / 0.0. 77. 7,7 2 0.0 /6.7 16.7 4 21.4 71 28,5 0 0 00. 0.00.0 2 515.4. 23.1 38,5 1 0.0 83 8.3 7/ 0.0 71 0 00 0.0. 0,0 0.0 3,2 3,2 0 00 00 0.0 3.2 0.0 10.0 - 3,2 3 0.0 1 7171 00 0.0 0.0 00 0.0 0.0. 0.00.0 9.7 0.0 97 0010.00.0 216.7 0.0 16.7 0 0 0.0 00 00 0 0.0 0.0 0.0 00 00 00 0 00 00 00 0.0 7.1 7.1 0 0.0 0.0 0,0 6 19.4 00 19.14 83 00. 8.3 2 2143.0.0 143 4 0 4 308. a0 30,8 00 00.00 /| 83 0.0 18.3 0 0 0 00 00 00 1 1 27.00. 27 22 9 31 702901100, 9 3 12 75.0 250 100. 9 5 14 64335.7100. 8 5 13 61.538.5 100. 61 SECONDS - 5 MINUTES 6-30 MINUTES Number Per Cent Number OVER 30MINUTES DURATION NOT STATEL Per Cent Number Per Cent "Certain Doubtfull Tolat Certain Doubtfut Total Certain Doubtful Total Certain Doubtfuf Totai Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certaia Doubttul Total 2 3 3.6 71 10,7 3 2 5/0.3) 6.9172 1 125 0.0 /25 6.3 5 3 3.1 9,4 ₴ 3.6 3.6 7.2 617.2 34. 20,6 0 3 375 0.0,375 3 8 188 6.3 25.1 4 8 143 143 28.6 8 /3.8 13.8 27,6 2250 0.0 250 156 9.4.25.0 0.0 00 3.6 00 3,4 0 0.0 3,6 0 34 0.0 0.0 00 0.0 0 0.0 0,0 0.0 0,0 3.6 0.0. 3.6. 0.0 0.0 0.0 34 000 7/ 00,00 0.0 00 00 0.0 O.D. 0.0 00 0.0 0.0 0,0 0.0 0.0. 0,0 0.0 0.0 0 0.00.0 0.0 0.0 00 0.0 6 18.8 0.0 /8.8 2 10 3 3.6 10.7 10 35.2 0.0 35.7 2 0 6, 00 0.0. 0.0 0 125 /2,5 0.0 12,5 0.0 24.1 0.0.12.5 5 3.10.0| 3./ 15.6 0,0 15.6 0 0,0 0.0 0.0 00 34: 3.4 0 0.0 00 00 / 0.0 3.1, 3.1 19 9 28 6793211100. 21 8 29 724276:100. 0.8 1000 0.0100.251 1 32 78.1219100. 231

━ PAGE 241 ━

Evaluation O-Balloon ¡ 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuffic. into. 7-Psychological 8- Unknown 9 Other Total TABLE A199 EVALUATION OF ALL SIGHTINGS FOR ALL YEARS BY NUMBER DE ORJECTS LER. SENTING FOR DURATION SIGHTINI 6-10 SECONDS 11- 30 SECOND. ONE 5 SECONDS, OR LESS OBJECI 31-60 SECOND Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doualtul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain [Doubtful Total Certain Doubikill Total Certain Doubtful| Total Certain Doubiful Total 0.8 14 2.2 136 138/274 36 8. 373 71 43 26 69 816, 121507 6 10 2.0 2.9 4.9 9 11 20 56 68 12.4 46 15 6/ 22.4 г. 3 29.7 15 8 23 93 5.0 14.3 16 36 54 43 9.7 13 27 10.3 9.6 19.9 28 28.5613.7 131.274 30 18 48 18.6 11.2 29.8 2 0 2 05.00 0.5 / - 0.7 _01 1.4 2 05 0.5 1.0 0 0 00 00 00 0 0.0 0.0 00 0 0.0 00. 00 0 0 00. 00 00 0. 0.00 00 00 / 12 2 23 8 / 2 03 03 06 0 12 32 00 3.2 0. 2. 05 00.05 0N00 0 0.0 0.0. 2 2 00 10 10 0 0 0 00 00.00 0 7, 51. 00 00 51 14 0 14 68 00 6.8 12 0 12 75 00 15 00 0.000 3 1 4 1.5 0,5 2.0 2 0 2 1.2 00 1.2 0 23 62 00 42 22 0 22 162 00 16.2 44 0 44 21.5 0.0 215 5/ 0 5/31.7 00.31.7 3. 1/ 2.2 08 30 2 0 215. 001.5 4 8 12. 2.0 3.9 5.9 3 2 5 19 1.2 31 207/63 370|559.44.1. 100. 9244/36 67632.4.100. 144 6/205/70.229.8.100. 122, 39 16/ 75.8 242100 Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. j4-Birds S-Clouds, Dust, etc. 6- Insuffic. Info. 7-Psychological 8-Unknown 19-0 ther Total Evaluation 0-Balloon 2-Aircratt N3-Light Phenom. 4- Birds 5-Clouds, Dust, etc. G-insuffic. Into. 7-Psychological 8-Unkown s-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3 Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic Into. 7-Psychological 8- Unknown 9-0 ther Total 6/ SECONOS - 5 MINUTES Number Per Cent 6-30 MINUTES Number OVER 30 MINUTES DURATION NOT STATED Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtfull Total Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total 55 33 88 14.9 90 23.9 42/10 198 12.2320 32 17,54 18.0 8.3. 243 49 29. L78 2.7 3.5 6.2 не 12. 52 11.7 3.5 1152 2.9 4.7. 112.6 10 13.23 22.8 28 8.2 9.3 28 13. 41 13.6 6.3.19,9 118 15 4.4 52 86. 204 13.8. 32.8 46 38 84 125:10.3 32 60 175 9 19.0 14 1.3 11.7 0.0 1.0 37 89 8.4 6.0 144) 2 1.4, 0.5 1.9 2.0 1.2 3.2 2 2 02 0 7 0.0 2 4 3 0.5 0.7 0.0 0.0 0.0 0.0 01 / 2 0,2 7 7 0.0 34 34 9.2 1.9 1.9 / 0.0 0.0 0.0 0,0 0.2 / D.3 0. 3 2.9 0.0 2.9 / 2 0.2 0.4 0.0. 9.2 11. 0,5 1.6 23 0 2 06 23 47 0.0 6.7 2.4 0.0 2.6 12 12 5.8 101 4 2 6 9 0 9 6 0.0 58 0101 14.3 0.0 0 2.9 0.0 5 0.8 16.3 2.9 00| 0.8 104 0104 28.3 0.0. 28.3 0 11.8. 48 0 48 233 0.0 23.3 0/10 17.1.00 17.7 12 3 15 33 0.8. 4.1 61 6/ 12.8 00 110 /1 1/5 32 1.2 1.4 8 13 3.9 2.4 6.3 22 263.5 0.6 4.1 270|98 368/134 26.1 100. 24895 34312.3. 271 100.154 52 206 74. 8 252100 462-159.62174.41256100. TABLE A 200 EVALUATION DE ALL SIGHTINGS FOR ALL YEARS BY NUMBER OF OBJECTS. PER SIGHTING FDR • DURATION SIGHTING TwO OBJECTS 5 SECONOS OR LESS 6-10 SECONOS 11-30 SECONDS 31-60 SECONDS Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Tofal 0 0.0 0.0 0 0 0 0.0 0.000 2 4 6. 13.8 20.7 9.5 0.0 6.9 00 0.0 0.0 19.0 285 5 2 2. 00 15.4 15.4 0 0 0.0 0.0 0.0 / 0,0 11./. /1. 4.8 23.8 28.6 30.8 38.5 4.8 4.8 7.7 12 17.2. 41.3 3 0 0.0 0.0 0,0 00 0.0 00 0.0 00 0.0 0.0 0.0 0 0 0 5 24.l 11. 1, 33,3. 44.4 0.0 0.0 0.0 0.0 11.1. 11. 000.0 0.0 0000 0.0 00 0.0 0.0 0.0 00 0.0 0,0 0.0 0.0 2. 4.5 0.0, 95 7.7 00. 7.2 6.9 0 VO 0.D. 0.0 0,0 0.0. 0.0 /I.1 0. 0. 11.1 0 00 00 00 0.0 00. 0.0 6 28.6 00.286 2. г.9 0.0 69 0 0. 00 0.0.0.0 5 0 0.0 0.0 5, 385 0.0 38.5 0 17.2 0.0 17.2 00. 00 1 23.4 3.4 48 11/10 21 524 47.4 100. 10 3 13 16.923.1. 100 5 / 19 1/0 29 65.534.5100 0 2 0 2 0.0 222 0.0.222 0 0 00 0.0 0.0 4 5 9 444 55.5100 6/ SECONDS- 5 MINUTES Number Per Cent 6-30 MINUTES Number Per Cent OVER 3P MINUTES Number Per Cent DURATION NOT STATED Number Per Cent Certain | Doubtful| Total Certain Doubitul| Total Certain | Doubtful| Total Certain Doubtful| Total Certain | Doubtful| Total Certain | Doubtful Total Certain Doubtfill Total Certain Doubtful | Total 7 141 11.5 11.5. 23.0 6 6 12 13.313.3 26.6 1 4 15.0 50200 7 5.2 3.9. 9. 14 00 1.6 2 3 5 4.4. 6.611.0 0/ 5,0 00: 5,0 1 18 3.9 11.7 17 0 0 0 28 27.9 180 45.9 814.13.317.8311 0.00.00.00 3 3 66 00 66 000 00 00 1.6 0. 00 00 00 0.0 0. 0.0 0.0 0.0 2 2.3.3. 0.0. 3.3 1.6 1.6 2 / 3.2 00 2. 1.4 0.0 4.4 0.0 00 0.0 11 0 20 11 180 0.0.18.0 6 0 b113.3 2 3.3 00 3.3 30 00.13.3 3 66 00 66 А MADROO 3 6. 10. 200 30.050.0 13 - 17 16.9 5.2:221 0000100 0 00 NONNO 0.0 0.0 0,0 0.0 0.0 0.0 3.0 50 10.0 0.010.0 0.0 0.0 0.0 5.0 28° 00000/01 113_00 1.3 0.00. 00. 00 7 113 00 1.3 9.10.0 9.1 0.0. 0.0 0.0 28 364. 0.0 364 0.0 5.00 52 7 65 2.6. 9.1 42/9 6/ 68.931.1 100/281/7/45162.437.8100. 8 20 600.40.0100. 65/2 7284.415.6100. 232

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Evaluation 0-Balloon 1-Astmnomimi 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. & Insuflic info. 7-Psychological 8-Unknown s-Other Total Evaluation 0-Ballcon 1-Astronomical 2-Aircraft 3-Light Phenom, 4 Birds 5-Clouds, Dust, etc. 6- Insuftic. Info. 7-Psychological 8-Unknown S-Other Total Evaluation 0- Baltoon 1- Astronomical 2-Aircraft 3-Light Phenom, 4-Birds 15-Clouds, Dust, etc. G Insuffic. into. 7-Psychological & Unknown s0ther Total Evaluation 0- Balloon I-Astronomical 2-Aircratt 3- Light Phenom. 1- Birds 5-Clouds, Dust, etc. 6 Insuffic thio. 7-Psychslogical & Unknown 9-0ther Total TABLE A201 EVALUATION OF ALL SIGHTINGS EOR ALL YEARS BY NUMBER OF. OBJECTS PER SIGHTING EDE DURATION OF SIGHTING, THREE TEN OBJECTS 5 SECONOS OR LESS 6-10 SECONDS 11-30 SECANES 31-60 SECONOS Humber Per Cent Number Per Cent Number Per Cent Number Per Cent Certain | Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total Certain Doubtful! Total Certain Doubtfull Total Certain Doubtful | Total 2 2 00. 6/6.1 0 2 0 0.0 0.0 3 000.00 0.0 0.0 2.17.1 0.0 3 9.1 00 91 6.7 0.0 6 1018.2 12.1303 6.1 0 0.0 33.3 0.0 3.8 13.8 0.0 5,9 5.9 NO 4 00 5 0 5 33.3 10 3030 3 6./ 3 0.0. 20.0.20.0 6 12.118.2 100 67 0 0.0 1.7 3 0 13 38.5 11.5 50.0 8 41.2 0.0 3.8 38 3.8 0.0 5.947.1 5. 9 5.9 00 3.8 5.9 5.9 11.8 0.0 0.00.0 0.00.0 0.000 2 00.0 2 6. 1 0.0 0.0 6.7 00 6./ 00 16.1 0.0 0 00 00 00 0 21.2 0.0 0 0.0 7 0.0.21.2 4 0.0 1.1 + 2670.0.26.7 2 0 2 0.0 6/ 0 0.0 0.0 0.0 0 / 0 0 0.0. 3.8 3.8 26.9 0.0 26.9 0.0 00 0.0 0 5 0 0 0 0 0.0 10.000 0.0 00. 00 0 0.0 00 00 5 29,5 0.0 29.4 0,0 0.0. 0.0 122 33 66.733.3100. 4 /5 13.326.1100 118 8 26.69.2 308 100. 113| 4 17 765 23.5100. 6/ SECONES - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES DURATION NOT STATED Per Cent Per Cent Certan Doubtil, Total Ceran eat Tolar Certain Doubtul Total certain out Total Certain Doubt Total Certain Drunt) Toal Certain Oute Toal Certain eroti Total 4 1.6 01 2 4.8 6.4 3 3 5 3.2 4.8 0 00 4.8 2 9.6 6. 0 6.12.8 0.0 12.8 5 5.3 10.0 5.3 0.01.3.2 0.0 0.0 7 4.3 10.4 14.9 12 10/22 3 4.3 19416. / 35.5 15 / 4 1./ 3.2 / 2 3.2 4.8 23.12.9.24.2 31.1 2 2./ 2.14.2 18 4 - 22 4. 2 23.1 3 2 118.9 3.2 3.2. 44 0 0.0 0.0 0.0 0.0 01 00. 0.0.00 0.0 0.0 1.6 1.6 0.00.0 0.0 7 10 0.0 0.0 0 00 1.1 0.00 0.0 0,0 0.0 00 2 2.1 11 3.2 0.0 0,0. 00 0,0 7 11.3 0.011.3 10 0.0. 1./ 0.0 2 0 2 4.2 0.0 4.2 0 / 20 20 16. 1.6 0.0.00 2.1 21 33.9 15 2.1 0.0. 21.1 2 21.1 1./ 1/ 2.2 0 21 0.0 33.9 015. 242 0.0 24.2 25 0 25 53.2 : 0.0 53.224 2 23.2 2 24 25.3 0.0. 253 0.0 3.2 3 116 3.2 4.8 41 0 4 8.5 00 8.5/4 0 14.14.7 0.014.7 44 / 8 62 0.0:29.0V00. 39 23 62 62.9 311100. 140 7 4785.114.9 100. 86 9 95 1905 9.5 100. TABLE A202 EVALUATION DE ALL SIGHTINGS EDE ALL YEARS BY NUMBER DE OBJECTS PER SIGHTING FOR DURATION SIGHTING, ELEVEN OR MORE DRUELTS 5 SECONDS OR LESS 6-10 SECONOS Number Number 11-30 SECÓNeS Number 31-60 SECONDS Per Cent Per Cent Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain] Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0 0,0 0.0 0.0 0.0 333 333 0 0,0 10.0 10.0 0 0 0.0 00 0.0 0.0 00 0.0 0.0 0 0.0. 33.333,3 0 0.0 0.0 0.0 10.0 20.0 30.0 33,3 0.0 33.5 0 D.0 0.0 0.0 12.5 0.0/2,5 0.0 0.0 0.0 0.0 0.0 0 0.01 0.0.0.0 0.0 33.3 0.0 500 0.0, 0.0 0.033.3 0.0 33.3 33.3 4 0.0 50.0 0 0.0| 0.0 0.0 0.0 3 0.0 0.0 30.0 0.0 0.0 D.0 0.0 0,0 WN 0.0 0.0 0.0 3 0.0 0.0 3300 00 30.0 0 0 0.0 0,0 00 0.0 0 0.0 0.0 0.0 0.0 0,0 0 0.0 33,3 33.3 0 0.0 00 0.0 0 0.01 00 0.0 0 0 00 00 00 3 0 3375 0.0,375 0 0 0 00 00 00 0 0.0 0.00,0 0 00 0.000 0 0 0 00 00 0.0 73/0 70.030.0100.1 2 3 166.7/33.3000. 03. 3. 00:000/00 80/800.0 0.01100. 6/ SECONDS - 5 MINUTES 6-30 Number Per Cent Number MINUTES OVER 30 MINUTES DURATION ' NOT STATED Per Cent Certain Doubtful Toial Certain | Doubtful Tolal Certain Doubtful Total Certain Doubtful | Total Paran Doubts Total certain ot Total Certain Duster Total Per Cent Certain Doubtful Total 9- 0, 0.0 0.0 00. 125 00 123 10.0.125/35 6 O B 1 0.0 0.0 0.0 00.00 00 6, 20.0 | 0.020.0 45 00 4,5 DOODOON 0.0 9.1 9.1 2 - 0.018.218.2 0 0.0 0.0 0.0 0.0. 3,3 33 00. 45 4.5 0.0 0.0 9.1 0.0 225.0 0.0250 0:0 9,1 0.0 DO ON 0. 00. 0.0 0 00 0.0. 00. 0. 0.0. 0.0 1/25 0.0/251 100. 00. 0.0 0,0 00.01 00 00 1, 0 DO0N | 3.3 0 0.0, 00 00 0.0, 0.00.0 00 00. 00 0.0 00. 00. 00 0.0 0.0 0.01 318 00 318 3.3 364 0.0 36.4 3 375 0.0375 20 0 20 66.7 0.066.7 3 273 00273 0 00 00. 00 01 00 33.33 2920 2 2 9.1 00 9.1 9 40.9 0.0 40.9 81311 727273100.1 0. 7 2 9. 1. 0.0 9.1 181875/25/00.28 2301933 6.710021 / 22455 4.5100 233

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Evaluation 0-Ballcon 1-Astronomical 2-Aircraft 3- Light Phenom, 4-Birds 5-Clouds, Dust, etc. G Insuffic Info. [7-Psychologicat 8 Unknom 90 ther Total Evaluation 0-Balloon l-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dusl, etc. 6 Insuffic, Info. 7-Psychological 8- Unknown 9-0ther Total TABLE A 203 EVALUATION OF ALL SIGHTINGS FOR ALL YEARS BY NUMBER OF OBJECES PER SIGHTING FOR DURATION DE SIGHTING 5 SECONDS OR LESS 6-10 SECONOS 11-30 SECONDS SEE DE OBJECTS NOT STATED 31-60 SECONOS. Humber Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain (Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubkful Total Certain Doubtful Total 0 0 e 000.0. 0.0 / 500 0.0 50.0 0 2050.0 0.0 2 2 667 0.0.60.2 000 1 0.0 33.3 33.3 000. 000.0 0 00 00 00 0 0. 0 00.0 0.000 / 500. 0.050.0 00 0 00 00 00 0 00 0.00.0 0.0 00.00 0. 00.00 0.0 00 0 0 0.0 00 0.0 / 10000.0100.0 0 0.00.0 00 0.0 0.0 0.0 0 00 00 00 00 00.00 10 0 00. 0.00.0 0 0 00 00 00 0 00 00.00 00.00 00 0 00 00.00 0 0 00 00 00 0 0.0 100 2.00.0000 00 0.0 0 0.0 00.00 00 00 00 00. 00.00 2 3 106.133.3100. 2 0 2 100.00.0100. / / 100d 0.0 100. 61 SECONDS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES Number Per Cent Humber Per Cent Number DURATION NOT STATED Per Cent Certain | Doubtfui Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful, Total Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtiul Total Certain Doubtiul Total 2 2 33.3. 0.0 33.3 0.0. 33.3. 333 0 0.0 00 00 1 2.1 0.0 2.2 NO 0 0.0 00 0.0 33.3 0.0 33.3 0 0 0 00. 0.0 0.0 0.0 0.00.0 / 0 8.3 0.0 0.08.3 1/ 12 29.7 2.7. 32.4 0.0. 0.0 $ 2.7 8 1 10.8 1607 0.0 16.2 0.0 33.3 333 00 0.0 0,0 / 0.0 2.7 2.7 00.00. 0.0 0.0 0.00.0 0 3 250. 0.015.0 2 2 54 0.0. 5% 0.0.00 0.0 0 0.0 0.00.0 0 00 000.0 16.7 0.016.1 0.0 0 0.0167 0 0 0 0.00.0 0.000. 00 0 00.0.000 20. 00.0.0 33.3.0.013.3 2 0 5 16.7 10.0 0.0 0.0 5 41.7. 0.0 41.7 0 0. 0 1 2.7 0.0 2.7 8 216 00 21.6 00 2.7.22 6 0 _16. 2 0.0 16.2 0.0 00.0.0 0 0.0 0.0 0.0 83.00 6.3 2.7 00 2.7 100.0 0.0100 2 3 6./ 33.3100. 12 0/12 1000.0.0100 31 6/37/83.8116.2.100 234

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Evaluation • 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom, 4-Birds 5-Clouds, Dust, elc. & Insuffic init. 7-Psyctological 8- Unknown 9.0ther Total TRALE A 204 EVALUATION DF UNIT SIGHTINGS FOR ALL. YEARS BY NUMBER DE OBJECTS, LER SIGHTING FOR DURATION -S/GHTING, 5. SECONOS OR LESS ONE OBJECT 4-10 SECONDS 11-30 SECONDS 31-60 SECONDS Celain Douteul Total Certain ouait Total Certain Doubrul Total Certain Doroit Total Certain Bool Total Certain Doit Total Certain Doutil Total Certain Dorant Total 3 3 6 1.0 2.0 3 6 2.1. 2.1 5.4 3 513 6. 91.8. 3654 9 10. 19 6.9 7,6 14.5 115/0/216 335 33.8 223 36 2/57 32418.9 38 12 50 224 1.1 29.7 10.7 4. 6. 15.3 16 15 3/1 5.41 5.010.4 13 10.23 11.7 20 9.0 00.7 25 25 50 14.9 14.9 29.8 23 18 41 17.6.13.7 313 0 2 0.1 0.001 / 0.9. 0.0 0.9 1 2 06 0.6 1.2 0 000.0 00 0.0 0 0.0 0 0 á0 0.000 0 0 0 0.0 0.0 0.0 0.3 0.3 0 0.0 0.0 0.0 0 0 00 00 00 2 2 0.0 12 12 0 0.0 0.000 0 12 0.0 4.0 0.0.4.0 0.0 0.1 6 0.2 в 6 5.0 0.0 5.4 014. 8.3 0.0 8.3 10 0.0 7.6 0 0.0 14 0.0. 0.0 3 / 4 18 0.6 2.4 2 110 7.6 16 2 1.50.0 45 0 19 4.4 0.0.604 0 1614.4 2,3 10|3.3 0.0 14.4 0.0|18 28 0 28 16•7 00 167 2 34 34 260 00 260 3 10 0 1 2 0 4 51 9 2.4 3.0.54 3 2 52315|3.8 1176123299589. 41. 100 77.34 11/ 694 VI6/ VI6 52/68/69.031.0100.1 95 3613/725 275100. Evaluation @-Balloon 1- Astrononical 2-Aircraft 3-Light Phenom. +- Birds I5-Clouds, Dust, etc. 6-Insuffic. Into. 7-Psychological 8-Unknown 9-0 ther Total Evaluation 0-Balloon 1-Astronomicat 2- Aircraft 3-Ligtit Phenom. 4- Birds 5-Clouds, Dust, etc. 6 Insuffic. Info. J-Psychological &-Unknown Sother Total 6I SECONDS - 5 MINUTES Number 6-30 MINUTES OVER 30 MINUTES DURATION NOT STATED Per Cent Number Per Cent Certain Doubiful Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total Number Per Cent Number Per Cent Certain Doubthul Total Certain Doubtful Total Certain Doubttul Total [Certain Doubtful Total 46.30 76/5.6.10.2 25.8 57 37.94 183 11.9 30.2 27 1/ 38 21.4 6.7 30.1 47 23 65 8,8 6.1 32 4.8.13.6 1018. 2.7 3.4 11 43 10,3 3.5/3.8 26 11. 32.20.6 8.7 29,3 84 55139.17.6 :11.5 291 35 33 19 2.2 1.2 234 26 2703 8.4 8,9 17.3 13 5.0 48.10.4 44 76 70 9,2 5,5/4.7 7 11 0.1.2.4 4 1/23 1.3 3.6 2 0.0 1.6 1.6 0.6 0.20.8 01 00 0.000 0. 0 00 0.000 0.0 0.0 00 2 0,2 0.2: 0,4 3 3 0.0 1.0 1.0 2 0,3 0,3, 0.6 21 21 1.1 0.01.1 23 0 23 7.4 0.0 7.4 4 82 2 1.41 0.1 2.1 0.0.279 9 0 61 0 9 2.9 0.0 29 82 27.9 - 61196 0.019.6 To tat 0.0 0.8 00 0.8 4.8 0.04.8 90 40 137 0.0 02 0.0/8.7 00 3,2 5 0.015.1 79 312 4 15 3.5 2 6 00 1.0 0,0 10 7916.6 0.016.6 9 3.1 1.0 4. 1 1,3 4.8 4 13,2 1.6 48 19 3 22 40 0.6 46 211. 83 294 11.8 28.2100. 227 843/730 270 100 94. 32/2674625.4100. 368109 47777122,9 100 TABLE A205 EVALUATION DE UNIT SIGHTINGS FOR ALL YERES BY NUMBER OF OBJECIS PER SIGHTING. EDR DURATION DE SIGHTING TWO OBJECTE 5 SECONDS OR LESS 6-10 SECONDS Number Per Cent Number 11-30 SECONDS 31-60 SECONOS Per Cent Number Per Cent Number Per Cent Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0.0 0.0. 0.0 0 0.0 00 0D 3 4 42125/67 0 00 5 6225.0 31.2 2 2 0.0 0.0 0.0- 16.7 16.7 0 0 0.01 0.0 0.0 0.0 11.1 11.1 3 00000 62/8.8.25.0 0.0 bi2 0.2 0.0 0.0 0,0 0 0.0 0.0, 0.0 12.5 000м 4 250 8.3.93.3 00 0D 0.0 0.0 0.0 0.0 0.012,5 0,0 0.0 0.0 DO 8.3 0,0 8.3 0 00 0.00. 0.0 4 25.0 0.0 250 5 4.7 0.0 4.7 UNNOODa 5/125.0 20.845.8 0.0 0.0 0 0 00 0.0 0.0 8 2 0.0 0.0 0.0 0.0 8.3 8.3 0 2 8.3 00 5 0 8,3 3125 00/25 N01000 4 0.0 0.0 0 0 00 0.0 0.0 1 242 4.2 8.4 8 16(5000 (500050.0000. 3 12 75.025.0100. 15 9 24 625 37.5 100 4 3 11.133.3 44.4 00000/0 0.0. 11./ 11.1 0.0 00 0.0 0.0 0.0 0.0 0.0 11.1 0 0.01 0.0. 0.0 2222 0.022.2 0 0.0, 0.0 0.0 5 9 H4-4.55.6100. Evaluation C- Balloon 1-Astronomical 2-Aircratt 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic into. i7-Prychological 8- Unicnom SOther Total 6I SECONOS - 5 MINUTES Number 4-30 MINUTES OVER 30 MINUTES Per Cent Number DURATION NOT STATED Per Cent Number Per Cent Number Per Cent Certain Doubtil Total Certain Doubtful Tolal Certain Doubiful Total Certain Douatful! Total Certain Doubtful | Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 7.13 11.8 13.725,5 6 4 1014.0 9.323.3 0 0 3 1 4 231 77 308 3 25 6.0 4.0 10.0 0.0 0.0 0.0 6 3 5 4.7 70 /1.7 77.0.0 77 2 5 16.0 4.0 10.0 13 11 24.255 216471 8 14 14.0/8.6 32,6 5 1574 23/38.5 10 4/4. 20.0 8.0.28.0 0.0 00 0.0 3 0 3 70 20 0.0 2.0 0.0 00. 2 0.0 0.0. 339. 0.0 0.0: 3.9 2 -20, 2040 0 0 OND 2 815.7 0.015,7 2 3,9 0.0. 3.9 3 D00000 10 0.01 0.0 00 0.0 0.0 0 0.9 0.0 00 0,0 0.0 0,0 0.0 0.0 00 0.0 00. 00 11 0.0 4 15,4 0.0 15.4 • 0.0 0.0 00.00 0N0 D.0: 0.0 0.0/4.0. 77 0.0. 77 12 в 0.0 7 14.0 0.0 14.0 0 0,0 0.0 0.0 1224.0 0.0 240 3 71 00 70 0.0 0.0 0.0 2. 6 8.0 4.0/20 32/95/527 373100 28/5 43/65134.9 100. 9 41 13.6%2 30.8100 40/0 50 80.0.20.0000. 235

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Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Ptienom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychologi cal 8- Unknown 9 Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-8irds 5-Clouds, Dust, etc. 6-Insuffic. Into. 7-Psychological 8 Unknown 9-Other Total Evaluation 0-Baltoon 1-Astronomical 2-Aiscratt 3-Light Phenom. + Birds 5-Clouds, Dust, etc. 6 Insuftic. Into. 7-Psychological 8-Unknow 9 Other Total Evaluation 0- Balloon 1-Astronomical 2-Aircratt 3- Light Phenom. 4- Birds S-Clouds, Dust, etc. 6 Insullic lato. 7-Psychological 8. choos 30me Total TABLE A 20k EVALKATION OF UNIT SIGHTINGS FOR ALL LENES BY NUMBER DF OBJECTS PER SIGHTING FOR DURATION DE SIGHTING, THREE TO TEN OBJECTS 5 SECONDS OR LESS 6-10 SECONAS 11-30 SECONDS 31-60 SECONDS Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain | Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0 2 2 0.0 7.1 7.1 0.010,7 0.0 0.0 0.0 Certain Doubtful Total Certain Doubtful Total 0,0 48 4.8 0 0.0 0.0. 3 10.7 7 179. 21.250 0.0: 36 36 71 14.3 214 0,0. 0,0 0.0 71 0.0. 71 0.0 0.0. 0.0 12.9 0.017.9 2 0.0 71 040 000w 00 0.D 0.0 0 $ 30.0 0.0.300 2 0.0.20.0.20.0 00. 10.010.0 0.0 0.0. 0.0 10.D. 0.0 0010.0 0.0 0.0 30.0 0,0.30.0 0.0 0.0. бл. 191 9 28679 32.1100. 7 31/0. 700 30.0000. 0 8 0N00010 3 16 . / 0,0 48 4.8 0.0 6.7 6.7 38.1.14.3524 0.0 00 0.0 4.8 0.0 4.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 33.3 0.0 33,3 0.0 0.0. 0.0 00000-- 400 6.7.46.7 6.7 010000. 0,0 6.7 6.7 6.713.4 0.0 0:0 0.0 O.D 0.0 0.0 0.0 0.0. 0.0 26,7 0.0 26.7 0.0 0.0. 0.0 5 21 76.223.8100. // 4 15 /73.3 26.7100. 6I SECONDS - 5 MINUTES Number Per Cent 6-30 MINUTES Number OVER 30 MINUTES Per Cent Number Per Cent DURATION NOT STATED Number Per Cent Certain Doubthul| Total Certain Doubtful| Total Certain | Doubtful Total Certain] Doubttul| Total Certain Doubtful Total Certain Doubtful Total Certain Douhtfel Total Certain | Doubtful | Total 3 4. 22 6.7 8.9 3 615,4 5410.8 5 516.7 0.016.7 5 0.2 0.0. 62 . 90 2 . 2 00 44 4.4 0 0 0.0 0.0 0.0 2 814/33 17,8 31.1 9 17 14.316.131,4 2 3 22 44 6.6 0.0 0,0 0.0 2, 4 3.6 3,67,2 0 1.8 118. 0.0 0.0 0. 0 D.0 0.0. 0.0 -000 00004 7, 67 16.7 233 0.0 28 38 3.3 3 0,0 3.3 4 21212 50262 0 0,0 0.0 0.0 0.0 0.0. 0.0 0.0 0.0. 00 14 613.3 0.0 13.3.10 22 22 0 0 10 129 0.0.19.9 0 33 0.0 3.3 0.0 0.0 D.0 3.3 3.3 01431.1; 0,031 15 015.2681 / 0.0 268 12 01240.0 0.0 40D 18 1. 2.2 00, 2.2 / 2 3 1.8 3,6 5,4 3 0, 3 10.0 0.0.10.0 9 D0N000 12 0,0, 1.2 ₴ 1,2 172.4 0.0 0,0. 0,0 .1923.8 0.0.23,8 2 12 1,224 18 22,5 0.0 23,5 9 11.2 0.0 11.2 129/6 45 644.35.6 100. 39 17 56 69.630.4.100. 124 6.30 80.0 20.0100. 71 9 80 88811.21100. TABLE A2Q7 EVALUATION DF UNIT SIGHTINGS FOR ALL YEARS BY NUMBER DE OBJECTS PER SIGHTING DUBATION DF SIGHTING ELEVEN OR MORE OBJECTS 5 SECONOS _DR. LESS la-10 SEÇONDS Number 11-30 SECONOS 31-60 SECONOS Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtiul) Total Certain Doubttul| Tolas Certain Doubtful Total Certain Doubtful Total Certain Doubtful Totai Certain Doubtful Total Certain | Doubtful Total 0 0 00 0.0 0,0 0 0 0 0.0 0.0 0.0 0D 00 0.0 0.0 0.0 0.0 / 0.0. 10.0 10.0 0.0 50.0 50.0 0.0 33.333.3 10.0 20.0.30.0 00 0.0. 0.0 0.0 0.0 0.0 50.0 0.0 50.0 00 0.0. 0.0 0.0 0.0 0.0 0.D 30,0 0.0:00 O.D 0D 0.0. 30.0 0.0 0.0 00 0.0 100100 0.0 0.0 0.0 0.0 00. 0.0 0.0333 333 0.0 0.0 0.0 0.0 0.0 33.3 33.3 330.0 00 30.0 20 00 0.0 00 0.0 00 0 20 00 00 3.10 700. 30.0100.1 1 2.500 50.0100. D 3 3 0.0\/00.0100. Dunbacono 7 0 0 0.0 0.0 /14.3 0.0 0.0 14.3 0 0.0 0.0. 0.0 3 42.9 0.0 H27 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 0l 1429 0042.9 0.0 0.D 00 0 1 7.100.0г 0.0 100. 61 SECONOS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES Number Per Cent Mumber Per Cent Numbe DURATION NOT STATED Per Cent Numbe Per Cen Certain Doubtful| Total Certain Doubtful Total Certain | Doubtful| Total Certain | Doubthul! Total Certain Doubtful | Total Certain | Doubtful Total Certain | Doubtful Total Certain Doubtful Total 0 0.0 0.0, 0.0 12,5 0.0125 100 1 0,0 10.010.0 0.0 20.0 20.0 0 0,0 10.0 0.0 0.0 0.0. 10.0 0.0 0.0 0.0 0.0 0.0 00 0.0 300 0.0 30.0 DONOO 040г 0.0 /7,5 125 0.0 0.0 ' 0.0 25.0 0.0. 250 0,0 00 0.0 0.0 0.0 0.0 1 025 0.0/25 10001 0.0. 0.0 3 20 0.0 03 3 000000000 0.0 00 15.0 00 0.0 1522 00 5.0 5,0 15.0 0.0 5.0 8868 0.0 00 0,0 0.0 0.0: 0.8 00 50 30.0 00.30.0 0 00 0.0.0.0 13, 65.0 0.065.0 0.0 58 50 N49000010 0,0 0.0 0.0 0.0 5.3 5.3 0.0 5.3 0.0 0.0 0.0 0.0 0.031.6 10.5 0.0 10.5 136.8 0.0 36.8 110,5 0.0/0,5 2310 70.030.0100. 18187512.5100.18 2 20 90.010.0100.781 7/9 947 5.3000. 236

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Evaluation 0-Balloon 1- Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. & lasuffic Into. 7.Psychulopical 8. Undown 90the Total TABLE A 209 EVALUATION -DE OBJECT SIGHTINGS FOR ALL YEARS BY NUMBER DE OBJECTS PER SIGHTING EDe DURATION OF SIGHTING, ONE OBJECT 5 SECONAS OR LESS Number 6-10 SECONDS 11-30 SECONOS Per Cent Number Per Cent Number 31-60 SECONDS Per Cent Number Per Cent Certain Doubtfull Tolai Certain Doubtful Total Certain Doubttul Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtfül Total Certain Doubtful Total Certain Doubtful Total 3 3 6 13. 1.3 2.6 2- 52.2 3.35.5 3 5 24 8 2.2 3.6 5,8 82. 2715935.0329 679 26 17 43 286.18.7473 9 18 75 75/5.0 9, 33 173 65 238 5 14 14 29 1,5 42/1.7 644 6.0124 12 00 0.9 10 0 15 7 0 2 0 15 110 0,0 0.0 4.3 0.9 6.4 3.0 00 0.0 0.4 0,0 0.4 0.0 0.9 00001 0.0 6,4 1.3 43 00000009 20 13.2 8.8 230 22 -23 45/5.8 165 32,3 15 3819.2 - 125317 0/a 00> 1.1 0,0 2 0.7 23 0.744 0 0 0.0 0.0 1.0 0.0 00. 00 0.0 0 0,0 0.0 0.0 00: 00 0.0 0.0 0,0 2 0.0 1.4 00.00 6.6 0.0 b.6 3 013 0.0 9,4 0.0 9,4 10 1D 83 0.0 83 0.0 0.0 0.0 2 3 1.4 0.2. 2.1 2 2 17 00. 1.7 1415.4 00/5.4. 25 0 25 18.0 0.D 18.0 33 33 0.0275 2,22 0.0 2.2 4 4. 8. 29 2,9,5.8 3 2 5 27,5 25 17.4.2 1136.98.234 58.1.41.9 100. 63.28 91 69.230.8 100 94 45 139676324100. 8931120742.25.8100. Evaluation 0-Batioon 1-Astronomicat 2-Aircraft 3-Light Phenon. 4 Birds 5-Clouds, Dust, etc. G Insuffic, Info. 7-Psychological & Unknown 9-Other Total Evaluation 0-Balloon I-Astronomical 2-Aircraft 3-Light Phenoa. 4- Birds 5-Clouds, Dust, etc. 6 insuffic. into. .Psychological & Unknown sOther Total Evaluation 0-Ballpon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuffic Mio. 7-Psycholopical & Unknot 90ther Total 6I SECONOS - 5 MINUTES Number Per Cent 6-30 MINUTES OVER 30 MINUTES Number DURATION NOT STATED Number Per Cent Per Cent Number Per Cent Certain Doubttul Total Certain Doubtful Total Certain| Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Dosbtful Totat Certain) Doubttul Total Certain Doubtful Total H4 29 73 164 10.8274 6 55 31 86 199 11.231.1 23 204 97 30.1 32 18 9.4 46 14,0 8 14 22 3.0 5.2 32 29 34 53 1140/0,5 AO 14.5 23 10 33 20,4 8.829,2 49 90124 10.4. 228 31.63.11.911.6235 26 / 6 23 49 9.4 8.317.7 2,2 7 4 // 6.2 2 3.5, 9,7 37 25 62 9.4 6.315.2 4 1.5 04 1.9 3 9 11 3.3 2 0.0 18 1.8 0 10.0 3 D ao 0.0 0 3 1 0.0 0 0 0.0 0,0 2. 0.0 0.0 0.4 0.9 0.0 0.0 0.0 / / 0.9 0 0.20 0.4 7,2 0.0 0.8 72 5 5 2 0.8 0.0 0.8 0.3 0.3 0.3 0.6 0.0 0.3 18 6.7 0.0 6.7. 20 0 404 0.0 4.4 8.7.22.1 0.022! 2 6 1.5 0.7 2.2 9 0 9.3.2 0.D 3.2 4 3,5 0.0 3.5 5 5 1.3 0.0. 1.3 0 76.28.4 .0.028.448 0. 48 173 0.0.17.3. 17 0 17/5.0 0.015.0 69 69175 0.017.5 10 3.4 04 38. 11 3 14 40 1./ 5.1 2 6 3,5 1.8 5.3 17 3 20.43 0.8 5.1 V93 75 268 720280100.20572 277740260 1001 29/13 743 25.21100.1 306 88 394-777 22.3100. TABLE A2I0 EVALUATION DE OBJECT SIGHTINES FOR ALL YEARS BY NUMBER DE, CANECES PEL SIGHTING FOR DURATION SIGHTING TWO ORJECTS 5 SECONOS OR LESS 6-10 SECONOS 11-30 SECCINOS 31-60 SECONDS Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Tolai Certaia Doubtful Total Certain Doubtful Total Doubtful Total Certain Doubtil Total 0 0 0.0 0.0 0.0 00 0.0 Certain Doubtful Total Certain Doubtful Total Certain | 0.0 3 4 4.3/3.017.3 0 0.0 0.0 0.0 w/W 4. 6.7 20.0 267 2 2 0.0 18.218.2 0 0.0 0.0 0.0 0.0 /1.1 11./ 41 6. 7. 200 267 4 91 36.4 11 26.1 21.7 478 11./ 33,3 44.4 0 0 0 2 0 4 8 0.0 27,3 6.7 0.0 5 0.0 0.0 0 4 0.0 67 0 0.0 0.0 0.0 0.0 0.0 /1.1 /1./ 0.0 0,0 0.0 0.0 0.0 0.0 0 0 0.0 100 0 0.0 0.0 0 0.01 2/3.3 0.0 0.0 0.013.3 0.0 0.0 0.0 0,0 0.0 0.0 0.0 1 0.0 0.0 00 6 91 0.0 0.0 9. 8.7 8.7 0.0 8.7 11.1 0.0 /1.1 0.0 0.0 0.0. 8 4. 267. 0026.7 0 0 00 00 00 7 15 53.3.46.7100.11 4 0 8 4 364 0.036,4 8.7 0.0 %7 0 2 22 0 0 00 00 0.0 /. 0,0 222 43 43.8,6 202.222 60 222 31/ 727273100.14 9 23|60.939.1 100 4 5 9 44455.6100. AL SECONOS - 5 MINUTES 6-30 MINUTES Humber Number OVER 30 MINUTES Number DURATION NOT STATER Per Cent Per Cent Per Cent Number Per Cent Certain Doubtful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain] Doubtful| Total Certain Doubtful Total 5/1.13.6 11.4.250. 0. 00. 0.0 0.0 5 2 3 3 8 139 8.3222 3 4 250 8.3333 2 4 43 43. 8,6 5 5.6 8.3/3.9 0 2 4,310,8 2/29,5/8.2477 5 5 10/3.913.9 278 0 3 813 0.0 8.3 00 2 0,0 .0.0 0,0 0.0 0.0 0.0 0 0.0 0.D 0.0 0.0 00 0.0 00. 45 9 201 0.0 0.0 _ 28. 0.0 28 2,3 23.4.6 0 00 00 00 0 15. 0.0 /5.9 616.7 00/67 DONODON 6,5 5, 167 2504.7 0.0 0.0 00 D.D 00. 0,0 00 .0.0 0.0 16.7 0.0 16,7 00 0.0 00 $3 0.0 8.3 SANDONe 12 19.6 2,2 6.5 261 0.0 22 0.0 0.0. 0.0 0.0 0.0 0.0 7 0.0 15.7 0.0 0.0 0.0 23.9 23 00 2. 3 83 00 83 0 0 100 00 00. 4 4.3/3,0 30/4.44 68.231.8100. 25 11 36 69.4 306100, 8 1412667 333 100 37 9 46 81.419.6100. 238

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Evaluation 0- Bailoon I-Astronomical 2-Airciaft 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. 6 Insuffic Info. 7-Psychological 8-Unknown s. Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircratt 3-Light Phenom. 4-Birds S-Clouds, Dust, etc. 6 Insultic. into. 7-Psychological &-Unknown 9-Other Total Evaluation p-Balloon 1-Astronomical 2-Aircratt 3-Light Phenom. A-Birds... 5-Clouds, Dust, etc. 6 Insuffic, info. 7-Psychological 8-Unknown 9-Other Total Evaluation o-Balloon 1-Astronomical 2-Aitcratt 3- Light Phenom. 4-Birda S Clouds, Dust, oic. 6 Insuttic into. 7- Psycho lo gi cal & Unknown 90ther Total TABLE A 2/I EVALUATION DE ORJECT SIGHTINGS EOR ALL YEARS BY NUMBER DE OBJECES PER SIGHTING FOR DURATION DE SIGHTING THREE TO TEN OBJECTS 5 SECONDS OR LESS 6=10 SECONDS 11-30 SECONOS 31-60 SECONOS Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total 2 0.0 71 1.1 0 0.0 5.3 0 0.0 0.0 3 5 0.0 0.0 0.0 53 0.0 107. 0.0 10.7 0.0 0.0 0.0 2 5.3 53 1.0 7 11.9 7./ 25.0 0 2 2 27.2 2 0.022.2 71 3 10. 34815.8526 6. 0.022.2222 0.00.0 00 7, 40.0 6.7 6.7 6.746.7 3.6. 3.4 0.0 6.7 6.7 2 0 0.0 4 6 1.1 14.3.21.4 5.3 0.053 0 00 0000 D 0.0 0.0 2 1.100.11 11.1 0.0 0.0 0.0/1.1 0 0 0 6.7 0,0 6.7 V34 0.0 0.00.0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 2. 19 0 5 0.0 0.0.00 0.0 0.0 0.0 0 0.0.0 179. 0.0179 3 00, 0.0 3 33.3 0.0.33.3 0. 5 3/6 0.0 31 2 11 00 71 0.0 0.0 0.0 0 0 00 00 0.1 0 0 0.0 0.0 0.0. 0.0 4 26.7 0.0 26.7 0.0 1.0 0,0 9 28 67.932./100 6 3 9 66733.3100.1 14 51/9173/26.3100. 4 15 /73.326.7100. 6l SECONOS - 5 MINUTES 6-30 MINUTES Number Per Cent Number Per Cent OVER 30 MINUTES DURATION NOT STATED Number Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubtfull Total Certain Doubtful Total Certain Doubtful Total / / 2 2.4 2.4 4.8 2. 5 38 58 96 3 0 312.0 0.0 12,0 4 61 0.0 61 9490-00 2 2 00. 4.9.4.9 0 0.00. 00, 00 8 14.14.619.5 341 9 0 20 00 06 5 7 8.0 20.0 28.0 3 3 0.0.4.514.5 0 0.0 00 00 13 417, 19.7 61 258 3. 2.4 4.8 1.2 2 3 24 48 12. 4 38 3.8 76 0.0 0,0 00 1.5 0.0. 15 / 0.0 1.9 1.9 MOO 0. 00 00.00 0.0.0 00 0.0 5 12.2. 0.0 12.2 10 19.2 0.0.19.2 0.0 24 2.4 0 00 0.00.0 DNO0 0.0 0 0.D D.D 2 1.53.0 0.0 0.0 1.5 0,0 0 0.0 4.0 0.0 0.0 0.0 40 15 0 15 22.7 0.0.22.7 / 0.0 4.0 40 2 15 1.5 3.0 13 0 13 317 00 317 13 0 /3 25.0.0.0 250.10 010.400 0.0 400.16 016 24.2 00 24.2 / 0. 1 2 4 00 24 1 2 3 19 38 57 3 0 3 /20 0.0 120 6 9100 91 2714 41 659 341 100 35 17 52673 32.7100. 19 6. 251760240100. 57 9 66 86.413.6.100. TABLE A2IR EVALUATION DE OBJECT SIGHTINGS FOR ALL JEARS BY NUMBER OF OBJECIS PER SIGHTING. 5 SECONOS OR LESS FOL OURATION, DE. SIGHTING,... ELEVEN OR MORE OBJECTS 6-10 SECONOS 11-30 SECONOS 31-60 SECONOS Cetain Doubtul Troll Certain onl Total Cerain] Dutiful Toil Certain erinal Tola (Certain Doubtel Toal Certain coleral Total Certain Doubte Total Certan outal Total 0 0.0 0.0 0.0 0 / 1, 0.0 50.0 5000 0 0.0 00. 0.0 0 0.0 0.0. 0.0 0 0 0.0 0.0. 0.0 0933.3 33.3 0bl0001 2 3/4.3 28.6 42.9 1500 00 50.0 0.01 0.0.00 0 00 00 0,0 0.0 00.00 0.0 00 00.00 0.0 0.0. 00 0.0. 0,0 0.0 33,3 333 0 00 CD 00 0.0 0.0 00 7/4.3 0.0 14.3 0.0 0.0 00 ao 0.0.0.0 0.0 00 0.0 2 0.0. 00 00 0.0 0.0. 342.9 0,042,91 0.0 0.0 8 82039, 29 0) 0 20 00 00 0 0. 00 0,0 0.0 0 0 00 .0.0 0.01 0000000000 0000 0,0 0.0 _0.0 0,0 0.0 0.0 0.0. 00 0.0 0.0 0.0 2 40.0. 0.0 0.040.0 0.0 0.0 0.0 0.0 0.0 00 8 00 00. 00 360.0 0060.0 00 0.0 0.0 52 77.428.61001 1 1 2500500 100.1 3 3 00100.0100. 5 0. 5 100.0.0.0/00. 61 SECONOS - 5 MINUTES 6-30 MINUTES Himaei Per Cent Number OVER 30 MINUTES DURATION NOT STATER Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Boubtul Total Certain Doubtful | Total Certain Doubtful Total Certain | Doubiful Total Certain Doubtful | Total 440000000 0. 0.0 0.0 0.0 0 / 125 0.0 12,5 0 0 0. 00 00 0.0 00 10.010,0 0000000N 2 00. 200 200 00 00 0.0 10.0 00 10.01 0 0.0 0.00.0 0 0.0 09 0.0 0 0.01 0я 00 330.0 0,0:30.0 00000000 1 00.12,5125 gust c0 200 00 10 0.0 00 1125 0.0175 0 0.0 0.0. 000 3375 00|375 000000 10020 3 200 0.0 0.0.200 67 67 16.7 0.0 6.7 0.0 0.0 0.0 0.0 00 00 0,0.00 1 67 00 67 6153.3 0.053.3 -4Na0000- 000000-00 0 00 0,0 90000 00 0.0 0.0 0.0 6.2 6.2 6,2 0,0 0.0 0.0 37.5 00.00 212.5 0.0 375 1.012,5 312 0.0 31.2 3 30.01 00 30.01 0 0.01 0.0 0.0 1 0.0 67 67 0 6.2 0.0 6.2 7 3/0 70.030.0100 8 575125100. 23 2.15186.713.3 100. 75 16 932.6.71100. 239

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Evaluation 2 Balloon I-Astronomical 2-Aircraft 3- Light Phenon 4-Birds S-Clouds, Dust, etc. G Insultic, Into. 7-Psychological 8 Unknorm sOther Total TABLE A2K EVALUATION OF OBJECT SIGHTINGS. EDR ALL YEARS BY NUMBER OF ORJECIS PER SIGHTING FOR DUERTION OF SIGHTING, NUMBER DE OBJECTS... NOT STATER 5 SECONOS De LESS. 6-10 SECONAS Number 11-30 SECONAS 31-60 SECONAS Certain Doubtful Total (Coran out Total Certain Doubtful Total Cana outi Total Certain Doubtal Total Catain outal Toal Number Per Cent Certain Doubtful Total Certain Doubtial Total 0 00 00 00 0 500 0.0 500 00 0.0 0.0 500 0050.0 00 0.0 0050.050,0 0.0 00 0.0 0.0. 0.0 00 00 40 0,0 00 0,0 00 100 00 00 0,0 0,0 0,0 - 0 00. 00 0,0 0,0 00 0 00 0000 000 500 0.0 50.0 0.0 0.0 00 0.0 1.0 0.0 00 0.0 0.0 00 0.0 0.0 0.0 100.0 0.0:1000 0,0 00 00 0,0 0000 00 0.0 00 D.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12/500-50.01100. 0 2/00.0 0.0100. 1 100.0 0.0 100 Evaluation 0-Balloon I-Astronamical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. Ginsuffic Info. 7-Psychological 8-Unknown 9-Other Total 61 SECONOS - 5 MINUTES 6-30 MINUTES OVER 30 MINUTES DURATION NOT STATES Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubttul Total Certain Doubtful Total Certain | Doubtfui Total Certain Doubtu Total Certain Doubtful Total Certain | Doubthul Total Certain Debitul Total Certain Doubtful | Total 000-00 ON 0000000000 240.0 0.040,0. 0.0 33.333.3 0.0 0.0 0 0,0 0.0 0.0 0 0.0 0,0 00 / 20.0 0.0 20.0 120.0 0.0 200 0.0 0.0 0,0 0 0,0 0.0. 0.0 20.0 0.0.200 0 0.0 0.0. 0.0 0. 0.0 00 0.0 0 0.0 0.0 0.0 5 0. 51000 0.0100. 01000000 2 0 0 0,0 0 0.0 0.0 0.0 0.0 0.000 33,3. 00.33.3 D. 0.0 00.00 0.0 a0 0.0 0.0 0.0 в 0.0 0000. 133.3 0.0 33,3 0.0 0,0 000000000 001 114.3 0.0/43 00. 00. 0.0 00. 0.0. 0.0 2. 28.6 0.028.6 0.0.00.00 2296 0.0286 00. 0.0 0.0 0.014.3 w09000-00 10 34L 3.8 98.4. 3.8 3.8 7.6 0.0 3.8. 3.8 0.0 0,0 0.0 00 0.0 30.8 0.030.8 AD 3. 8 3.8 111.5 0.0 11.5 / 143 0.0 /H3 3.8 00 3.8 1 3 66.7.33.3100. 7.0 7 000 0.0/00./22 # 26/84.615.41100. 240

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Evaluation 0- Baltoon I-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuffic, into. 7-Psychological 8- Unknown Total TABLE ARI4 EVALUATION DE ALL SIGHTINGS EOR ALL YEARS BY GEOGRACHI LOCATION Number TOTAL MORTH Number AMERICA SOUTH Number AMERICA EUROPE Per Cent Per Cent Per Cent Number Per Cent Certain Doubtful Total Certain Doubtl Total Certain Doubtful | Total Certain Derbtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 310 179449 84 5.6190 251 169420 8.4 5.704.1 0 0 00 00. 0.0 12 13 15.0 1.3 16.3 475341 816.198 101 255 445. 329,772 329,772 11.1. 260 0 $ 40.0 0.0 40.0 3 354.288.642 11.1 90 201 349 260 60311.6 88 204 0 2 2000.0 20.0 24 56 10 08 18 31 1 23 54 10 0.8 1.8 0 0 0 00 00 0.0 5 38,50 8.8 16 43, 13.8 20.1 32 00. 1.3 13 19 10. 29 06 0.3. 09 14 9 23 0,5 0.3 0.8 0 0 00 00 00 1. 20 1:3 13 2 1S 25 0.4 04/08 13 22 03 0.4 298 0.1 0 0 00 00 00 0.0 00 0.0 0 298 9.31 0.0. 9.3 241 0271 21 0.0 38 10 48 12 03.1.5 38 9.1 9 47 13 03 1.6 2 0 0 2 2000.0 20.016 0 16. 200 0.0 20.0 1 1 0.0 10.010.0 0 0 00 00 0.0 689 0689 21.5 00 21.5 k38 0 38 215 00 21.5 0 / 10.00.010.014 0 14 11.5 0.0 175 112 35 147 35 114.6 97 22 1 19 33 0.7 40 0 0 00 0.0 0.0 9 12 38 113 15.1 2299. 900 3199 11.9 28.1 100. 2135 834296911.9. 28.1100. 110/90010.0100. 53 27 80 66.3 33.8 100. Evaluation a-Balloon 1-Astronomical 2- Aircraft 3-Light Phenom. 4 Birds 5-Clouds, Dust, etc. 6 Insuftic, into. 7-Psychological &-Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 12-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Into. 7-Psychological 8-Unknown 9-0ther Total 4542 HERIGA Number AUSTRALIA Per Cent Certain Doubtful Total Certain Doubtful Total Number Per Cent Certain Doubtful Total Certain Doubtful Total Per Cent Certain, Dotul Tol Conan ot Total Certain out Total Certain and To 1 15 6./ 1 25 15.2 1.013. 40 18 10.0 40 6./ 218 7 14 8 28.0 4.0 32.0 10 3,5 8. 712.2 7 0.0 28.0 28,0 / 0.9 0.0.0.9 0.0 0.0 0,0 5 5 4.3 3 26 0.043 0.00 00 0.0 0.02.6 0 0 00 0.00.0 4 е 4 35 0.03.5 5 20.0 0020.0 00 0.0 0.0 00.0 0000 32 32 278 0.0 278 4 12 1610.4 4 16.0 00 16.0 35 13.9 0 00 0.000 8 6 29 115 74 8 25.2.100. 16 9 25 64.2360100. TABLE A215 EVALUATION GEOGRAPHIC - DE UNIT SIGHTINGS FOR YEARS BY LOCATION TOTAL Tearin NORTH AMERICA SOUTH AMERICA EUROPE Humber Per Cent Number Per Cent Number Per Cent Certain Doubtiul Total Certain Doubtful Total Certain Doubtlul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 228 150 378 6.9 5.9148 214 143. 357 9.0 6.015.0 382. 25663815.0 10.0 250 359.246 605 15.1 10.4 255 292 235 527.11.4 9.2 20.628/ 213 494.11.9 9.0 20.1 0.8 0 2 2 0 00 00 0.0 8 225.0 0.0. 25.0 2 25.0 0.0 25.0 3 5 1 10,9 4.7 1.6/2.5 6.3 11.0 13 1. 8 12.5 20.3 32 21 53 1.3 2.1 3/ 20 5/13 0.8 2./ 0 0.0 0.0 0,0 / 0.0 16 16 13 0.5 0.4 _ 20 05 0.4 0 00 3 10 23 0.9 0.9 0.4 0 0,0 0.0 0.0 0 0.0 1.6 10 0.1 0.3 13 9 01 0.31 0 0.0 10.0 261. 0.0 00.00 0 261 10.2 00 10.2 236 0 236 10.0 0.0 10.0 2 25.0 0.025.0 14 21.9 00.21.9 36 45 14 0.4 18 36 8 4415.03 417 1.8 1 00 12.5 12.5 14 0 0 0.0 0. 497 19.5 -0.0.19.5455 0.000 0 455 19.2 0.0 19.2 / 1 12.5 0.0125 11 92. 28 120 36 1.1 11 79 20 99 33 08 4.1 0 0 00 00 00 3 • 4 122 20172 9 4.1. 9.4 14.1 1836. 1162552 71.9 28.1100 1704 666 297071.9 28.1.100. 18/875/2.5100 43 21 64 67.2 32.8 100. Evaluation 0- Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. +-Birds S-Clouds, Dust, etc. 6 Insuffic. Inlo. 7-Psychological &- Unlanown 9-0ther ASIA Number AFRICA AUSTRALIA Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain | Doubtful | Total Certain Doubtful Total Certain Doubtful Total Cerain | Doubtful Total Certain Doubiful Total Certain Doubtful | Total 5 12 1.9 5.k 13,5 0 100 52 • 41 12 4 5 17 13.5 5. 6119.1 1, 28.6 і 41 33.3 10 14 45 11. 2. 15.1 4. 0.0 19.0 19.0 / 1/ 00 000 00 0.0 V 2 2.2 00 2.2 0 0 00 00 00 0,0 0 00 00 00 4 26 10 1.L 4,.5г 0.0 0 0 0.0 0.0 45 0.0 0 0 26 292 00 129.2 2. 12 112 2.2. 13.4 5 4 0 5 23.8 0.0238 00 00 00 4 19.0 0.0.19.0 0 0 00 00 00 Total 67 22 89 75.3| 247 100 15 * SEE FOOTNOTE ON NEXT PAGE. b 21 71.4 28.6.100. 241

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Evaluation 0- Balloon j1-Astronomical 2-Aircratt 3- Light Phenom. 4-Birds S-Clouds, Dust, etc. G- Insultic Info. 7-Psychological &- Unknown 3-Other Total TABLE 221k EVALUAZION OF OBJECT. SIGHTINGS FOR ALL YEReS BY GERGRAPHIC LOCATION TOTAL NORTH AMERICA SOUTH AMERICA EUROPE Number Per Cent Number Per Cent Per Cent Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtfui Total Certain Doubtful Total Nuraber Certain Doubttul Total Certain Doubtful Tolal Number Certain Doustful Total Certain Doubtful Total 207 13/ 338 94 6.0 154. 193 126 319 9.5 6.2 0 00 00 0.0 8. 1. 6 13.1 274 205 419 /2.5 9.3 21.8 255.197 45212.5 15.7 9.7 22.2 N 0 2 25.0 0.0 25.0 265. 209 474 12.1 95.214 254191 44512.5 9.4 21.9 2 125.0 0.0 25.0 5 4 7 1,5 12 49 6. 6 11.5 8.21 19.7 30 18 48 12 22 1.4 11.5 0.8 2.2 29 12, 46 1.4 0.8 2.2 0.0 0.00.0 0.0 1.4 • 10 05 0.4 0.9. 10 3 9:19 05 0.4 0.9 0.0 0.0 0,0 0.0 1.6 16 .10 0.1 0.3 2 7 9 0./ 0.3 0.4 240 0.4 0. 240 10.9 0.0. 109 215 0 215106 0.0 10.6 0 2 0.0 00 0,0 0.0 25.0 0.0 0.0.25.0 35 44 16 0.4. 20 35 8 43 0.4 2.1 0.0 12.5 11.5 434 0 434 19.T. 0.0 19.7.395 0 395. 19.4 0.0 19.4 0.0 12.5 85, 24 109 39 1 1 50 74 17. 91 0.8 4.4 0 12.5 3.k 00 0.000 14 0 10 3 0.0 23.0 00 23.0 0 0.0 0.0 0.0 10 116.4 0.016.4 5 1.9 8.213.1 15851613 2198/12.1 2791100 14621 512.2039 71. 9 28.1.100 7 8 87.5 12.5100. 42 19 6/ 68.9 31.1100 valuation O-Balloon 1-Astronomical 2-Aircraft 3- Light Phenon. 4-Birds 5-Clouds, Dust, etc. G-Insuffic. Info. 7-Psychological 8-Unknown 9-Other ASIA AFRICA Number Per Cent Number Per Cent Number AUSTRALIA Per Cent Number Per Cent Certain Doubtt| Total Cenain] Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful| Total Certain Doubthul Total Certain Doubtful Total Certain Doubtful Total 3 10 93 40 13.3 3 12 12.0. 10.16.0 7 11. 153 93 146. 0.0. 1.3 0 5 0 100 505.0 / 6 25.0 5.0 300 $ 0.0 20.0 20.0 2 13 0 000 00 00 2 0 2.7 0.02.7 0 000 0.000 / 13.001.3 . 0. 0 0 00 00 00 0 4 53 0.05.3 5 5. 25.0 0.0 25.0 0 0 00 00 00 24 0 0 0 00 00 0.0 0 24 320 0.0.32.0. 4 0 4 200 00 20.0 210/107 21.13.4.1 0 0 0 00 00 00 Total 60.15 75 800. 20.0000 | 14 6 20 700.300 100. * TOTALS DO NOT AGREE WITH PREVIOUS TOTALS BECAUSE TWO SIGHTINGS OCCURRED AT UNKNOWN LOCATIONS. 242

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Evaluation o- Baltoon 1-Astronomica: 2-Aiscraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic info. 7-Psychological 8-Unknown 3-Other Total TABLE A21T EVALUATION DE ALL NORTH AMERICAN SIGHTINGS EDR ALL YEARS BY LOCATION NORTH AMERICA Number Per Cent UNITED STATES CANADA ALASKA Number Per Cent Number Per Cent Number Per Cont Certain Doubtful Total Certain Doubtful| Total Certain Doubfful Total Certain Doubthul Total Certain Doubtful | Total " Certain Coublful| Total Certain | Doubtful Total Certain Doubtrul Total 251 169420 8.4 5.7 241143 4041 8,6 5.814.4 3 4 231, 49 86 2 3 4.3 2.1. 104 443 329 712 14.9 2k0 403 310 113 144 11./ 25.5 23 81 3/ 28.4 9.91 383 0 1225.5 0.0 25.5 343 260 60311.6 8.8 204.329 256 585 11.8 9.2 12 21.0 10 4412.3 12 13,5 3 3 3L 23 54 1.0 0.8 18 29 0.8 18 00 0.0 0.0 6.4 21 0.0 0.0 6.4 23 52 10 14 0.5 D.1 14 0,3 / D.0 112 20 00 211 23 0.3 8 22 0.8 1.2 D 0.0 9 9 0.5 13 22 0.3 0.4 0.1 9 12 21 0,3 0.4 0.1 0.0 0.0 0.0 0.0 271 0 2111 00 9/26/ 0. 26/ 9.3 D,0 9,3 4 4.9 00. 49 2 4.3 0.0 0.0 2 0.0 43 38. $71.3 D.3 1.k 37 9 46 43 0.3 1.6 0.0 1.2 0 0.0 0.0 638 0 438 21.5 0.0 21.5582 2 582. 20.8 0.0 20,8 91.22.119.33 0.7. 10 88 21 109 3.1 0.8 3.9 22 3 0.0 0. 22.272 0.0 21.2 22 0 22 46•8.0.0 46.8 4 37 1.2 49 4 85 00 85 (2135 8342969. (1.9. 28.1100. 1993. 8022795, 73 28.1100. 8/81.518.5100. 46 147/97.9 2.1.100 Evaluation Q-Balloon J-Astronomical 2-Aircratt 3-Light Phenom, 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. Info. 7-Psychological & Unknown 9-Other Total Evaluation O-Balioon 1-Astronomical I2-Aircraft 3-Light Phenom. 4- Birds 5-Clouds, Dust, etc. 6- insuffic. Into. 7-Psychological 8-Unknown 9-Other Total Number MEXICO HAWAu Number Number Certain | Doubtful Total Certain Doubtul Total Certain | Doubtul Total Certain Doubtill Tolal Certain | Doubitul| Total Certain Doubtil Total Certal Doubtful Total Certain Doubtful Tatal 2 0 2 13.3 0.0 13.3 2 3 6.7 13.3 20.0 / / 0.0 67 47 3 4 / 0 / € 9.1 3.2 12.9 13 12.9. 29.0 41.9 2 3 32 15 9.7 / 0 0 2 / 67 00. 6.1 0. 00 00 00 0 0 0.0 00 00 0. 00 0.0 0,0 0 0 0.0 0.0 0,0 2.13.3 0,0, 19.3 2 / 0 1 0.0 3.2 3.2 2 6.5 0.0 6.5 000. 00. 0.0 0 00 0.0 0.0 € 40.0 0.0 40.0 000 0.000 0 € 19.4 0.0 19.4 2 45.00 6,5 12 3 15 80.0.200 100.118 13/31 581 41.9100 TABLE A218 EVALUATION UNIT SIGHTINGS FOR ALL YEARS BY NORTH NORTH AMELICAN LOCATION AMERICA UNITER STATES CANADA ALASKA Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Cerlain Doubtful Total Certain Doubtful Total 214143 351 2.0 6.0 15.0. 205 137342 92 6./ 15.3 359. 246. 60515. 10.4 25.5 228 228 550182 10.2 24.9 281 • 213 494 11.9 90 20 5/ 1.3 20.8.272.210. 482 12.2 21.7 3/ 0.8 2.2 4,4 20 49 20 0,5 0.4 0.8 2 0.1 2 8 19 13 0.9. 2.2 0,5 0.4 0.9 2. 0.31 0.4 0. 0.3 234 0 236 0.226 0.4 3 17 5 0 0 4 2 50 k,7 11.7 7 24 28.3 11.7.400 0 58.31 00 8.3 2 3 35.9 2.9 8.8 9. 26.5 00. 24.5 8.8 0 2.9 0.0 8.8 0 0.0 10.000 0.0 / 2.9 10.0 1.7 12 0 0,0 00 00 0 0.0 0.0 0,0 0 00 00 110,0 00/100 226 10 0.0 10. 4 67 00/7 0 0.0 2 2 5.9 00 36 15 35 0.4 11.7 1.2 0 5.9 & 44 0.31 1.8 8 43 00 00 0.0 455 0 455 19.2 0.0. 19.2 418 D.0 0418 18.7 00 18.7 15 19 2 0 15 25.0 0.0 25.0 13 3 0 13 38.2 0.0 382 20. 99 33 08. 41 12 19 91 32 0.9. 41 3 33 1750 0 3 8.8 00 8.8 1704 6l6. 2370/11.9 28.1100. 598 636 2234715 28.5100. 47 13/60 78.3. 212.100.| 33 1/34|97.1 2.9 100. Evaluation O- Balloon I-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. G insuffic info. 7-Psychological & Unknown 9 Other Total MEXICO HAWAII Number Per Cent Number Per Cent Number Per Cent Number Her tent Certain Doubtful Total Certain Doubtful Total "Certain Doubiful Total Certain " Doubtful| Total Certain Doubtful Total Ceriain Doubtful Total Certain Doubtful Total Certain Doubtful Total 0 1 83 0.0 8.3 2, 3 8. 3 14.7 250 0 0 0 2 0 0 / 0.0 8.3, 8.3 8.3 0 0 0 0 0 0 0.08.3 0 00 00. 00 00 0.0 00 2 16.70.0 16.7 0 0.0 0.00,0 433.3 0.033.3 0 0.0 0.0 0.0 3 4 / 0 0 2 5 2 / 4 10.0 9 3.313.3 13.13.3 30.0433 2 3 33 61 110.0 0 0 00 00 0.0 0 0. 0.000 / 00 100 33 33 0 2 6.7 0.0 6.7 0.00 0000 5 16. 7 0.0.16.7 0 26.7 00 67 9 3 / 12 75.0 25.0100. 171 13/30 56.743.3100. 243

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Evaluation s0-Balloon 1- Astronoical 2-Aircraft 3-Light Phenom, 4-Birds 5-Clouds, Dust, etc. G insuffic, Into, 7-Psychological 8-Unknown Other Total TABLE A219 EVALUATION OF OBJECI SIGHTINGS FOR ALL YEARS BY NORTH AMERICAN LOCATION NORTH AMERICA Number Per Cent UNITED STATES CANADA Number Per Cent ALASKA Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubttul Total | Certain Doubtfull Total Huraber Per Cent Certain | Dochtful Total Certain Doubtful Total Certain Doubtil Total Certain Dostchel Tota 193/26 319. 95 62 15.7 184. 121 305 9.6 6-3.15.9 255 197 452 12.5 92 22.2 237 182 419.124. 9.5 21.9 254. 191 445 125 9.4.21.9 145 /88 433. 12.8 9.8. 22.6 44 14 08 2.2 27 11. 44.1.4 0.9 2.3 10 9 19 05 04 0.9.10 8 18 05 0.1 2 215 9. 01 0.3 04 2 0.9 8 01 03 0.4 0 215. 106. 0.0. 10.6 205 0 205 107. 0.0 10.7 3 5 MO00 3 6 6.2. 6.2 12.4 16.7 3.3 10.0 14 187 10.4 29.2 3 0 5 10.4 0.010.4 00. 0000 3, 1 0.0 2.12.1 0.0 0.00.0 83. 0.083 35 395 43 17 04 2.1 34 8 42 1.8 04 2.2 / 21 0.0 21 0 395 19.4 0.0 19.4.359 0,359.18.7 0.0 18.1 14 E 21.2 0.0.272 13 74 17, 91 36 08 75 67 16 83 3.5 0.8 43 2 1 3 4.2. 2.1 6.3 000000000 5 16.7 0.0 V6.7 3 10.0 0.0 10.0 0 33/0.0. 3.3 0.0 000.0 0.0. 0.0 0.0 2 67. 0.0 0. 6.7 0.0 00 0.0 13 43,3. 0.0 433 3 10.0 00 10.0 1462 512203411.9 28.1100. 1310 546/916.115 28.5 100. 38 10 48 20.8 20.8100. 29) 1 30 %6.7 3.3 100. Evaluation O-Balloon 1-Astronomical 22-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. info. 7-Psychological 8-Unknow 9-0ther Total HAWALL Cartin Doubtl Total Certain outal Total Certain Doubtful Toal Certain Doct Total Certain Doubtil Total Certail Bout Total Contil Doin| Tobal Corin Do Toda 0 0 2 / 0 0 0 0 0 18.3.00 8.3 3 8.3 16.7 25.0 3 3 4 10.7 3.614.3 11 10.7 28.6 39.3 1. 0.0 83 83 2 3 L 3.6 11 10.2 1 83. 00,8.3 0 00 00 00 0. 00 00 00 00.0 0.000 0 00 00 0.0 2/6.7 0.0 16.7 0 00.000.0 2 100. 36.36 2 11 00 71 4. 333. 0.0 333. 0. 00 00.00 5 2 0 0. 0.0 0.0 0.0 5 17.9. 0.0 11.9 2 7.10.0 1.1 9 3 12.75.0. 250 100. 16 12 28/57.1 42.9.100. 244

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Evaluation 0- Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, atc. 6 Insultic. Into. 7-Psychological B- Unknow 3-0 thes Total TABLE A 220 EVALUATION OF. ALL SIGHTINGS EOR UNITED STATES REGIONAL LOCATION NORTH EAST Number Per Cent Number Per Cent CENTRAL EAST Per Cent Carzin Doubtul Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain 241 163 404 84 58 144 1 10 17.6 20 19.452 39 91 89 41 15.6 403 310 113. 14.4 11.1 255 9. 15 11.8 17.6. 29.4 86 32 118/48 5.5203 329 256 55 118 92.210 1/ 9.811.8 21.6 100 65 165 17.2 11.2 28.4 29. 23 52. 1.0. 0.8. 2 20 2.0 40 14 & 20 05 0.3. 0.8 0 00 00 0.0 5 0.9 00 0.9 12 21 03 04 0.1 000. 00. 0.0 5 8 12 0.7 1.4 21 9. 9. 00. 1515 26/ 2 261193. 00 93 37. 3 5.9. 0.0. 5.9 44 0 44 76 0.0.16 9 46 13. 0.3 1.6 12.0. 0.0 20 3 11 14 05119 582 0 582 20.8. 0.0 708 4116 00 176112 0 112 19.2 00 19.2 88 21109 31 08 3.9 0 000.0.0.0 13 2 15 2.2, 0.325 1993.802 2795 71.3 28.7.100. 134 11 51 66.1/33.3.100. 424 158 58272.91 21.1100. ALL YEARS BY SOUTH EAST Number Per Cent Certain Doubtful Total Certain Doubtful Total 5 1 31 00 31 € 15.6 31 18.7 4. 11 219.12.5 34.41 2 31 3.1 62 0 00 00 0.0 0 00 00.00 2 63 00 63 0 00 00 00 4 125 0.0 12.5 6 _6 18.8: 0,0 18:8 26 6 32 81.3 18.8100. Evaluation 0-Balloon I-Astronomical 2-Aircraft- 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic. Into. 7-Psychological 8-Unkrown 9-Other Total Evaluation O-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic, Into. 7-Psychological 8-Unknown 9-0 ther Total Evaluation It- Ralloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. f-Insuffic. bito. 7-Psycho logical 8-Unknown 9-Other Total NORTH MIOWEST CENTRAL MIDWEST Number SOUTH MIOWEST Per Cent Per Cer Certain Doubtful Total Certain) Doubtful Total Certain Doubtful Total Certain Doubtil To Number Per Cent 1 Certain Doubtful Total Certain | Doubtful Total 3 10 13. 3.8.12.7.16.5 39 35 74 8./| 23 15.4 33 36 69 52, 5.7 10.93 19165 16 24. 9k 36 132 200 75 275 8/ 10,5 186.12.9 16.7 216. 9, 63 5./ 11.4 45 41 84 85119 16 59/35 12. 1 9.4 21.5 2. 00 2.5 2,5 8 19 4.4 12.3 1.7 40 5 6. 0.8 0.2 0 1.3 0.0 13 1.0 3 2 5 1,00 0.0 0.0 0 06 0.4 1.0 4 1 0.6 0.5 1.1 0.0. 0.0 0.0 0.0.0.0 10 1012.7 0.0.12.7 1.3 0,0 1.3 22 2 0 22 27.8 2.0. 27.8 2 25 0.0. 25 42 12 74 15 00.0 62 12.9: 0.0 129 56 56. 8.9 0.0 8.9 12 2.5 0.0 25 3 4 05 0,5 1.0 14 15.4. 0.0 15.4 15/ 15/24.0. 0.0 24.0 2 17. 3.1 0.4 3.5 8 5 13 13 0.8. 2.1 51 22 19 72.2 27.8100. 351124 4811142 25.8100.417 212 629.66.3/337 100. NORTH WEST CENTRAL WEST SOUTH Number Per Cent Number "Per Cent Certain Doubtfull| Total Certain Doubtfull Total Number WEST Per Cent Certain Doubtful Total Certain Doubtful, Total Certain Doubtful Total Certain Doubtful Totai 2 4_8.2 41.12.3 5 / 58 12. 20 10 11 20.4. 2.0 22.4 38 2,8 2.612.4 3 40/33.7.12.846.5 1 44 10. 48 26. 82/26 14 21.2 324 € 10.2 2.0. 12.2 3.5 47.81 32 12 58 6.7 8.315.0 0 0.0 0000 2 4 0.5 0.5 1.0 00 20 0.0 00: 1.2 1.2 12 1.0 2 0.0 0.5 3 3 3. 6.1 0,0 6.1 0 0.01 0.0 0.0 0.5 5 2 1 1.3 0.5 3 6.L 0.0, 6. 5 58 0.0.5.8 27 1.8 5 27/70 0.0 120 4100 41 6 10 0 0.000 0.01 4 13 45 0 0 0.0 4 8.2.008.2 0 11 98 0.0.198 198104 0 104 269 0.0 26.9 13 26.5 0.0 16.5 3 3 35 00 3.54 10 10.16 26 4 49 91.8, 8.2100. 69 17 86 802 19.8/00./250 136 386 648 35.2.100. NORTH FARWEST CENTRAL, EARWEST SOUTH FARWEST Number Per Cent Cerlain Doubtful Total Certain Doubtful Total Number Per Cent Number Per Cent Certain | Doubtful| Total Certain Doubtful| Total Certain | Doubtful, Total Certain Doubiful | Total 15 1813.3 2.7.16.0 20 10 9.1 14 34 120 8.4 20.4 2/ 8.818.5.16 22 12 - 34 15.4. 8.5 24.1 6.22 96 3.613.2 6 11.5 26 11 43 7.8 12.1 13 24 2.1 212 23 49 15.1 13.9 29.6 24. 12.8. 4.3. 17.1 0 0 0 000 18 00 0.0 10.6 0.0 06 3 0 0 00 00 00 00. 0.9 0 000. 00. 00 00. 0.0.00 1 0.9 0 2. 10.0, 2.1 1 00 06 0.6 0.0 00 0.0 13 0 23 13 1311.5 00 11.5 24 0 0 00 00. 0.0 2 24 45. 00/15 12 8,5 0.0. 2.5 3 06 1.2, 1.8 2./ 0.7. 2.8 23 20.4.00.204 2 13 115. 00/115 28 2 0 28.16. 1. 0.0 167 4 2 4. 12 12 2.4 34 9 0 34 24./ 0.0 24.1 4 13 64 2.8 9.2 89 24 113/188.212 100111848 166/11.1: 28.9100. 107/34 14175.9 241100. 245

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Evaluation 0-Balloon 1-Astronomicat 2-Aircraft 3-Light Phenom. 4-Birds S-Clouds, Dust, etc. 6 Insuffic Into. 7-Psychological 9-Other Total TABLE A22L EXALUATION DE UNIT SIGHTINGS FOR ALL YEARS BY UNITER STATES NORTH REGIONAL LOCATION TOTAL Number Per Cent Number EAST CENTRAL EASE SOUTH EAsT Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total Certain | Doubtful Total Number Per Cent Number Per Cent Certain Doubtful | Total Certain Doubthl Total Certain Doubtfull Total Certain Doubtful | Tota 205 137342 9.2 328 6/15.3 / 8 18.4 7 2.k 21./ 7.9 44 13 30 29 74 23 6.3 15.1 40 10215.4 5 0.0 4.0 228 55614 1 10.2 249 6./ 215 2001 4.0 24.0 272 |210 48212.2 10,5 18.4 9.4 21.6 3 8 13.2 211 8 124.0 29 5 1.9 20 49 51 133 14.0 12.0 18.0 8.0 32.0 13 09 2.2 2 2.6 4 19 1.3 4l 05 0.4. 0.9 2.6 5.3 10 0.8 2.1 2 4.0 8.0 0,0 3 0.6 0.6 0.0 0.0 2 126 35 418 12 8 0 0.0 0.0 0 0.0 - 0.0 6 0.1 0.3 0.4 0 00 00/00 3 3 0.0 0. 6 0. 00 0.00.0 0 226. 10.1 0.0.10.1 0 3 0.4. 2.0 1.9 0.0 12.60.0 7.9 0 8 43 0. 43 106 9.1 0.0 %.1 2 8.0 0.018.0 43 /6 2,6 8 2 1047 0.4 2.1 0 0.0 0.0 0.0 0 41818.7 0.0 18.7 0 23.7 23.7 81 81 11./00 17.1 116.0 0.016.0 19 21 32 09 41 9 0.0 0.0 0,0 13 2/15 2.1 0.4 3.1 2 0 4 0 0 00 2 8.0 0.0. 8.0 159863622341.5 285100. 28 10 38/13.1 36.3100. 345 129 41412.8.27.2 100. 21 4 25840 16.0100. Evaluation 0-Balloon 1-Astrovomical 2-Aircraft 3-Light Phenom, 4-Birds 5-Clouds, Dust, etc. E-Insuffic. info. 7-Psychological 8- Unknawn 9-Other Total NORTH MIDWEST Number CENTRAL MIDWEST Per Cent Number Per Cent SOUIM MIDWEST Number Per Cart Certain Doubtful Total (Certain Doubtful Total Certain Doubtful Total Certain Doubtful! Total Certain Doubtful Total Certain Doubtful Total 3 7.10 4.3 10.0 14.3 35 8.2 L2 3/ 66 1.2/5.4 26 3258 56 6.812.4 5 5 17 17.1 1.1 24,3 79 27 10/18.5 6.3 24.8 19 73142 14.715.6 30.3 0 2 2 20 5.7 2.9 12.9 2.9 43 40 83 10.0 9.3 19.3 55 47.102 10.0 18 2.6 1.4 1.4 1.6 0.5 4.2 11.8 2/.8 5 / 0.2 1.3 5 0.1 1,2 3 0.9 0.6 1.5 0 0 0.0 0.0 0,0 0. 8 0.0 11.4 0.1 114 1.0 14 00 1.4 20 2 0. 20 28.k 0.0 28.6 0 58 12 65 2 0.0 4 00 00 0.0 0.0 0.0 0 58 13.6 12 2.8 0.013.6 0.0 2.8 65 15.2 0.015.2 0 2 2.9.0.0 2.9 15 3.3 0.2 3.5 44 3 90 8 44 9.4 0.4 9.4 0.6 0.6 1.2 90 19.2 1.7 0.0.19.2 1.1 2.8 18 70 14325.1:100. 320108428 148 25.2100 . 304.164 468 650 350.100 Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. +Birds 5-Ctouds, Dust, etc. G insuffic. to. Psychological 8-Unknown 9-Other Total NORTH Number WEST CENTRAL WEST Per Cent Humber Per Cent Number WEST Per Cent Certain Doubtiul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doulthul Total Certain Doubtful Total 2 12,6 6.3 18:8 4 4.6 15 6.2 31 2.7 14.5 7 5 14 7 38 11.8 250 3./ 18.7 3 0 11 3 25 21.514.9 38.5 33 51. 84 12.6 32.1 6 4.64.6 9.2 23 23 0.0 15. 00/5 2 46 145 4 8.8 8.8. 0.8 17.6 0 2 0.8 1.6 0: 0 0.0 /1 1. 5 15 2 0.8 0 0 00 3 0 3 9,4 9.4 2 0 2 63 0.0 6.3 0 4 12.5 0.0.12.5 3 9.4 00 94 0 5 4 16 3 0.0 D.б 0 0.0. 0.00.0 2 3 0.4 0.8 14.50.0 1.2 e 3 22.00 2 8 0 7 65 00 05 0 16 24.40.0 244 59 0 59 22.5 0.0 225 0 3 46 0.046 4 5 91.51.9 3.4 281 + 32815 1251004916 6575424.6100 17092262 649/35.1100. Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Ligit Phanon. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic, Into. 7-Psychological 8- Unknown S-other Total NORTH FARWEST CENTRAL FARWEST SOUTH Number Per Cent Number Per Cent Number FARWEST Per Cent Certain Doubiful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubttud Total Certain Doubtlut Total 15 3 18 13.9 2. б 14.7 9.3 195 17 11 28/161 15 19.1 15 19 12. 31/6/10.2 24.3 - 10. 21 10.2 6 21 10.3 41 14.4 11 17, 51 9.3 1$4 13 9 22 12.0 8.3 20.3 26 13 39 17.5 8.9 6. 2019 00.0 0,0 24.1 5. 117.0 0.0 0 1 01 00 0.1 0.0 00 0.0 a 000 00 0.0 100 01. 0.7 10 0 23 13 0.9 10 9.3 00.0.9 0.0 9.3 24 00 0 24 16.4;0.016.4 0 0.0. 0.0 3 07 14 2.1 23 21.3,00 2/3 25 2 0 25 17.1 0.0171 10000 32.5 0.0 25 00 00 00 0 00 0.000 9, 7.k 0.0. 7.6 $ 2.5 0.833 22 186. 0.0 18.4 0 13 120 0.012.0 2 4 14 14 2.8 $ 12. 68 3.4 10.2 861 22/08 79.6:20.4 100. 111135146460. 240100 84. 341118/112 28,8 100 246

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Evaluation C-Balioon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Bitds 5-Ctouds, Dust, etc. G Insuffic, Info. -Psychological & Unknown ,9-Other Total TABLE 1222 EVALUATION UNITED DE. ОВЛЕСТ 5/6HT/01G5 FOR ALL YEARS BY STATES REGIONAL LOCATION Number NORTH EAST CENTRAL EAST SOUTH Per Cent Number Per Cent Number Per Cent Number EAST Per Cent Carión Doubttul Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtful Total Certain Doubtful | Total Certain Doubtful Total Certain Doubtful Total Certain Doubttul Tota 18412/305 96 k3 15.9 1 1 8 18.9. 2.721.6 38 27 65 2.7 6.9 16.6 45. ú0 18. 5 237182 419 12.4 9.5 21.9 245 188 433 12.8 98 22.6 27 11 44 14. 0.9 23 2 8 18 05 04 0.9 8 01 0.3 04 205 0 205 10.1 0.010.1 34 8 42 1.8 0.4 2.2 359 0 359.18.7 0.0 18.7 000004 1. 10.8 81 18•9 46 24 70 11.7 6.1 17.8 4 5/8.2 4.5.22.7 8 8.1 13.5 21.6 62 5.4 3 50 11215.8 /2.7 28.5 / 6 22.7 45 27.2 2 27. 27 6 9 08 15.23 2 45 45 9.0 0 00 00 0.0 3 03. 08.00,08 0 00. 00.00 0 0.0 0.0 0.0 3 3 00 08 0.8 00.0 0.0 0.0 3 5.1 0.0 8.1,38 0. 38 97 0.0 9.7 2 2 91 00 9.1 1 21 0.0 2.7 2 9 18 05 2.3 0 0 00 00ü0 8 216 00 216 69 069176. 0.0176 0 4 18.2. 0.018.2 67 16 83 35 08 13 0 0 0 00 0.00013 2 15 3.3. 05 3.8 11370 546/916.715 28.5100. 27 10 37 73.0 27.0100. 279 114/393 7.0.29.0100. 2 19 0 2 91 0.0 9.1 3 22 864 /3.6 60. Evaluation 0-Balloon 1-Astroncmical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-Insuftic. Info. 7-Psychological & Unknown 9-0 ther Total NORTH MIRWEST CENTRAL MIOWEST Number Per Cent Number Per Cent SOUTH MIDWEST Number Per Cent Certain | Doubtful| Total Certain' Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doutful Total Cerlain Doublful | Total 3 7 10 48 11.3 16.1 30. 28. 58.6.0 4.5155 25 28 53 53 6.4 1.2 13.4 3 1112.9 48 17.7 24 71 14 2 64 20.6 5/ 59 11013.0 15. 1 28:1 5 4 9 81 65 146 42 35 17 11.2 9.4 20.6 2 50 41 9/ 12.б 19.5 23.3 2 0.0 3.2 3.2 + 16 2.9 13 42 4 0 4 10 00 1.0 116. 00 16 5 0.8. 05 13 3 6 05 08 16 0 0.0 00. 0.0 2 0 00 0.0 00 0 000. 00 0.0. 8 12.9. 0.0 12.9 57 0 57 15.22.015.2 35 35 q€ 0.3. 90 1 16 00 16 112 0 12 32 00 3.2 6 28 08 1.6 0 18 29.0 0.0 29.0_51 0. 5715.2. 0.0 15.2 74 18.9 0.0 18.3 2 2 32 00 3.214 / 15 31 03 4ú 8 4 1 12 20 10 3.00 46 16 62 742258 100. 279 95 374146 254100 253138391 647 35.3 108. Evaluation 0-Balloon 1-Astronomical 2-Alrcraft 3-Light Phenon. 4-Birds 5-Clouds, Dust, etc. G- Insuftic. into. Z-Psychological B-Unknown 9-Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. G- Insuffle into. - Psycho logical 8- Unknown 90ther Total NORTH WEST CENTRAL WEST SOUTH WEST Number Per Cent Number Per Cent Numbel Per Cent Certain | Doubtful Totas Certain Doubtful! Total Certain Doubtful Total Certain Doubtful, Total Certain Doubtful Total Certain | Doubtful Total 40 4 0 4 0 0 3 2 5 1/.5 7.7 19.2 4 51 12 68 28 5. 33/2.6 2.2 14'8 4 11.5 3.8 15.3 9 20 18.615.3. 33.9 31 34 65/3.9 15.2 = 1.1 6 19.213.8 23.0 3 6 51 51 102 21 000. 00 00 1 / 00 1117 2 2/42 9.4 94 18.8 0 00 00 0.0 117 00.17 2 4 09 2.9, 1.б 2 2 00 0.9 59 000. 0000 0 000 00 00 3 15 00 11.5 0 5 85 0.0, 8.5 2 3 24 09 1.3 0 14 43 00 6.3 2 71 00 11 0. 468.00 681 0 0 00 c:0. 0.0. 3 11.5 0.0 11.5 15 0. 15 25,4 0.0. 25.8 53 0 53 13532.235 0 3 115 00 115 0 3 51 00 51 4 3 1 48 13 3:1 22 4 26 84.615.$ 100. 45 1459 1763 237 100 154 69/223/69. 30.9.100. NORTH FARWEST CENTRAL, FARWEST SOUTH FARWEST Number Per Cent Number Per Cent Number Per Cent Certain Doubtful| Total Certain | Doubtful Total Certain Doubtful| Total Certain Doubtful Total Certain Doubtfull Total Certain Doubtful Total 3 1613.6 3.2 16.8 160 9 25 122 6.9.19. 11 10 27 6.5 92 26.2 10 8 18 10.5 2/124 8.4. 18.9 6 17 84 46 13.0 5 10 15 49 2.71x6 9.5 22.1 0 00. 0.0 00 24 L 12 34 16.3 9.2 275 13 10, 9126 5.8 18.4 0100 e 1 08 00 08 3 0 3 29 0.0. 2.9 0.0 0.0 0 0 00 00 00 2 0 0 00 00 0.2 / 11 0.0 1/ 1100. 08 08 n 30 20 2i 10 10.6 0.0 10.5 22 0 22 16.8 0.0 16.8 5 1.8 0.U75 0 00 00.00 2 3 08 15 2.3 = 29..0 3.9 0 21 22.1 00 22.1 22 0. 8 24 00 8.4 2 0 22 168 0.0.16.8 i5 0 15 146 5.0. 146. 2 4 15 15 3.0 8 + :2 7.8 3.9 11.7 15. 20 95 78.9 211:100. 99 32 131 754 244/100. 72 3/103/69.9/30.1100. 247

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Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 14-Birds 5-Clouds, Dust, etc. G Insuttic info. 7-Psychotogical 8-Unknown 90thes Total Evaluation O-Balloon 1•Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G-Insuffic. Into. T-Psychological 8-Unknown 9-Other Total Evaluation L0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6 Insuffic. Info. 7-Psychological 8-Unknown 9-0ther Total TABLE A223 EVALUATION DE ALL SIGHTINGS IN THE STRATEGIC AREAS OF CENTRAL REGION NEW YORK THE EAST HARRISBURG WASHINGTON BALANCE OF CENTRAL EASI Number Per Cent Per Cent Per Cent Number Per Cent Certain Doubtful Total Certain Doubthl Total Number Certain Doubtful Total Certain Doubtful Total Certain Number Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total 9 25 5.1 141 9 6 15 10.1 1.117.8 19 12 31 9.0 5. 714.1 1220 1310.9 18.2 20 53 2 90 6 26 11.2 5/ i6 5 211 12 65 29.8 3.4 14.6 10 10 20 11.9. 11.9 23.8 40 19.0 5.2.242 14 5 4.5. 19.0 6.7 345 14 10 24 16.7: 11.9 28.6 23 27 50 11.0 12.9.23.9 3 1L 0.6 17 / 1.2 0.0 1.2 2 2 0.0 10-10 0 0.0 0.0 0.0 0 0.0 0 4 4.8 0.0 48 0,5 00 03 0.000 100 00 00 0.0 3.8 3.8 2/ 21 118 0.0. 11.8 0. 2 2.4 0.0 2.4 5.2 00, 52 10 0 7 39 0.0: 3,9 1.2 00 12 0 00 0.0 00 401048 9. 1. 14.5234 6 2.9 4.5 5.4 20. 00. 0.0 2.0. 29. 0.9 9: 0.0 91 20 2.7 27 26 5 26 14.4 00 146 15 0 15 17.9 0.0 17.9 2 53 3 0 53 25.2. 0.0 252 0 18 14.4 0.0 16.4 5 28. 00. 28 2. 24 0.0 2.4 3 14 00 1.4 3 2 5 37 18 4,5 1150. 28 128843 15.1 100. 58 26 84 69.031.0100 150 60 210171.4 28.6100. 1 46 44 110 60.040.0109. TABLE A 224 EVALUATION 0F ALL OF THE CENTRAL SIGHTINGS IN THE STRATEGIC AREAS MIDWEST REGION CHICAGO Number Per Cent DAYTON BALANCE OF CENTRAL MIDWEST Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Cerlain Doubtful Total Certain Doubtful Total Certain Doubtful Total Number Per Cent Cerlain / Doubtful Total Certain Doubiful Tota 2 5 7 2.3 5.1 8.0 21 9 30 11.2 4.8 16.0 16 21.32 7.8 10.2 8.0 20 8 28.22.7 9.1318 31 18 55|19.7. 9.6 29.3 39 21.6 2/ 10 49 19.0 49.23.9 8 1912.5 9.1 23 1 44 11.2 12.2 23.4 13 10 23 6.3 4.9 11.2 0 0.0 1./ 4 10 3.2 2.15.3 5 3 8 2.41.5 0.0 3 3.9 0 1.1 1 0.5 0.00.5 2 0.5 1.0 1.5 0 0.0 0 00. 0.0 01 0 0.0 0.0 00 0 // 5 12 12.5 0.012.5 0.0 0.0 0.0 5.2 0.0 5.2 0 12 13.6 0.013.6 20 2 18 0 20.10,6 0.0 10.6 3/ 31 15. 1 0.0151 0 2 1.1 0.0 %1 5 0 5 2$ 0.0. 2.4 18. 9.6 0.0 9.644 0 74 21.5 0.0.21.5 4.5 00 45 2 8 3.2 1.143 5 0 5 - 24 00 2.4 66 22 88 75.025.0400. 1132 56 18870.2.29.8100. 1159 46 205177622.4100 TAbLE A225 EVALUATION OF ALL SIGHTINGS IN THE STRATEGIC AREAS DE THE CENTRAL FARWEST REGION SAN FRANCISCO Number BALANCE DE CENTRAL EARWEST Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Toial Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 18 8 26 1.0 1.1 23.1 8 3 17 0 0 28 9.8 112.5 3 8 13.7 11.114.8 14 2.7 9.3 15.2 0.0 9.8 25.0 12 21 5.614.9 I: I 22.2 38.9 0.0 0.0 0 1. 9 0.0 1.9 0 0 0.0 0.0 0.0 0 0.0 0.0 0.0 0000 1. 9 1.9 16 / 22 1 0.0 00 16 14.3 0.0.14.3 14.8 0.0 14.8 2 0 2 3 0.9 1.8 2.7 22 3 19.6 0.0 19.6 0 0 0.0 0.0 0.0 0.9 1.8. 2.7 6 11.1, 0.011.1 1, 19. 0.0 1.9 86. 26/112 76.8 23.2400. 132/22 54 59.3.40.7100. 248

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Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6- Insuffic Info. 7-Psychological 8-Unknow 9-Other Total Evaluation 0- Balloon 1-Astronomical 2-Aircraft 3-Light Phonom. 4 Birds 5-Clouds, Dust, etc 6-Insuftic Into. 7-Psychologi cal &-Unknown 9-0 ther Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4- Birds 5-Clouds, Dust, etc. 6- Insuffic. tnfo. 7-Psychological 8-Unknown 9-Other Total TABLE A224 EVALUATION OF THE OF ALL SOUTH_ SIGHTINGS IN THE STRATEGIC AREAS MIOWEST REGION ATLANTA WACO SAN.. ANTONIO Number Per Cent Number BALANCE OF SOUTH MIDWEST Per then Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total Certain Doubtfal Total Certain Doubtful! Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 12 6.9 13.8 20.7 3 3,5 3.3 14.817 8 10 2 0 5 2.1 5L 1 2 911.5 11 34 50 50 10.0 12 20 9.2 13.8 23.0 33 12.6/241 64 97 22.9 444 673 14 13. / 22,9 34 2/| 55 101 4.216.3 2/ 11.5 4 7 11 2.8 4.9 7,1 98 5 // 8.2 48180 57 35. 92 16.9 10.4273 3 0.1 0.0 0 0 2.3 1.L. 3.4 0.7 0.0 1.6 103 00 03 0.0 0.0 0.0 8 0.0 0.0 9.2 0.0 0.0 2 2 2.3 9.2 2.3 1 5 0 0 12 2.8 0.7 3,5 0 0.0 0.000 2 2 0.0 04. 0.6 00 0.0 0.00.000 00 13 13 14.9 00.14.9. 1./ 112.2 12 0 9 / 8.3 00 0.0 00 8.3 2 34 00. 000.0 0 3,3 00 3.3 34 1010.0101 0.0 0.0 0 0.0 0 0.000 3 $ 0,9 0.3 9 62 00 4.2 21 2/ 07 2 344 0.0. 34.4 108 1.2 0 108 32.0 00 32.0 0.0 0.2 3 14 3.3 49 5 2 2, 15 0.6 2.1 48 39 87/55.244.8100.|47 77 144 46-5 53.5V00 43 18/6/705 295100. 259 48 337 1 9 23. 1 100. TABLE A221 EVALUATION. DE ALL THE SOUTH WEST SIGHTINGS IN THE STRATEGIC REGION AREAS ALBUQUERDUE BALANCE DF SOUTH WEST Number Per Cent Certain Doubtful| Total Certain Doubtfull Totas Certain But Total colai act Total ran out Toal Centan and Tal Corin Deto Tel Cortan aCON TOr 12 5 21 60 8/ 5.7 2.4 8.1 26 5 31 148. 28.17.6 10.0 286 38.6 23 19 30 52 9.0.14.2 22 45 13.1 12.525.4 15 13 28 8.5. 1.4 15.9 0 0.0 00. 00 2 2 4 11 1. 1.2,2 0.0 05. 0.5 1 00 06 0.6 2.4 0.02.4 0 2 2 0.0 1/. 1.1 1k 0 16 0 1.l 00. 1.6 0 11 6.2 00. 6.2 0.0 00 0 0 0 0.0 0.00.0 53 / 0.0. 0 53.25.2 00. 25.2. 6 0,5 5/ 0. 51.290 0.0 290 2.9 3.4 3 0 3 17. 0.011 119 91 21056. 7 433100|131 45 174 74.4 25.6 100. TABLE 1228 EVALUATION. - DE ALL SIGHTINGS IN THE STRATEGI AREAS OF THE SOUTH FALWEST REGION LOS ANGELES BALANCE OF SOUTH FARWEST Number Per Cent Certain Doubttu! Total Cestain | Doubtful| Total Certain Doubter Tota Certain eroti Total Certain Doubtil Total Certain eurot Total Certain Doubted Total Certain earl Total 2/ 10 3L 5 8 18.3 8.1. 27.0 / 13 43 2. 3 38. 7.711.5 1.0 11.3 / 3 4 38 11.5 15.3 5 19 12.2 43 14,5 2. 2 1. 5154 3.8 19.2 1.1 0.0 1.7 / e 1 3:8 00 38 0.0 0.0 0. 0.0 0000 0 0 8 0.0 0.0 0.0 0.0 0 0 00 00 00 1.0 0.0 31 8 0 17. 1.0 4 15.4 0.0/5.4 L 0.9|2.6 1 38 00 3.8 31 21.0 00 21.0 3 3 11.5 0.011.5 0 8 100.0 70 4. 5 38 15.4.19.2 91 24 115 19.1 20.9.100|161 10 24.61.538.5100. 249

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Evaluation 0- Batloon 1-Astronotni cal 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. G insuffic. info. 7-Psychological 8-Unknown $-Other Total Evaluation O-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds S-Clouds, Dust, efc. 6-Insuffic. Info. 7-Psychological 8-Unknown o-other Total Evaluation 0-Balloon 1-Astronomical 2-Aircratt 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G Insuffic. Info. T-Psychological 8 Unknown.. 9-Other Total TABLE A 229 EVALVATION OF UNIT SIGHTINGS IN THE STRATEGIC AREAS OF THE CENTRAL EAST REGION NEW YORK HARRISBURG WASHINGTON BALANCE DE CENTRAL EASI Number Per Cent Number Per Cent Certain | Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Number Per Cent Number Per Cent Certain Doubttul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total LL 7 18 85 5.413.9 9. 15/1.51 1.7 19.2 16 16 3/ 9 25. 9.4 53 147 8 8 16.82 22 /2.4 47111. 10 8.216.4 5.2241 31 40.240 7.0.310 0.8. 2.4 14 8 18 12.8 10.3.23.1 10 41 182. 59/241 5 2/16.5 10 24 17.9 12.8 307 2/ 25 4k 12.4 14.7. 27.1 10 23 10.3 134237 1.k 13. 0.0 1.3 0 2 2 2 00 1.2 / 1.2 13 3. 0 1.0 3. 1. 4.1 0 0.0 0.000 2 0.0 / 0.00.6 0.0, 0.0 0 00 00 00 0 20 0 26 0.0 2.6 00 00 0 06 2 2 0.0 1.2 1.2 0 / 0.0 0 0.01 1.0 1.0 20/5.5 0.015.5 2 0. 2 // 0 11. 0.0 6.5 10 1010.3. 0.0,0.3 1 54 00, 5.4 / 0 2.6 0.0 2.6 1.3 0 6.5 2 0.0 2. 1 2.1 14 1.30.0 0.00.00.0 2 0 14 10.900 109. 13 0. 13 16.7 0.0 167 39 5 0.0 2.6 3 39 22.9. 0.0 22.9 15 15 1/5.5 0.0/5.5 3.9 00 3.9 2 2.6 3. 18 00 11.8 3 2 5 3.1 2/52 106 23 /29/82.217.8100|54 24 78 Val.2 30.8/100. V22| 48 170 7.8.28.2100. 63/34 91 64/9 35.1 100 TABLE. 4230 EVALUATION UNIT SIGHTINGS THE IN THE STRATEGIC PRENS CENTRAL MIDWEST PEGION CHICAGO DAYTON BALANCE OF CENTRAL MONEST Number Per Cent Number Per Cent Certain | Doubtful Total Certain Doubtful! Total Certain Number Per Cent Number Per Cent Doubtful Total Certain Doubttul Total Certain Doubtul Totai Certain Daubtful Total Certain Doubthul Total Certain | Doubtful Total 5 7.25 6.2, 8.2 20 9 29 12.0 5.4 17.4 22.19.8 7.4 27.2. 29 13 17 30 72 9.4 16.6 11 40 1746.6 240 34 44 18.9 5.6 245 8 19.136 9.9 235 19 22 41 11.413.2 24.6 13 10 23 7.2 5.6/2.8 0 00. 12.12 / 00 4. 10. 36.24.60 1.2 5 2 1 2.8. 1.1 3.9 • 00.12 0 1 06. 0.0 06 2 3 06, 1.1. 12 0 00 00 0.0 0 0 00 0.0 0.0 5 0 0.0.000 0.0 11136. 0.0 13.6.20 0 20 120 0.0 12.0 27 0 27 15.0 0.0 15.0 5 62 0.0 6.2 2 0. 212 0012 0 11 13.6. 0.0 13.6 17 5 5 28 00 28 0 17 10.2 00102 37 0 37 206 00 206 0 4 49 00. 49 1 7 36 06 42 4 0. 4 22 0.0 2.2 20 81 15.3 24. 7 V00. 120 47 167 11.9.28.1100. 139 41 180 77. 2 22.81100. TABLE A231 ENALUATION UNIT SIGHTINGS IN THA STRATEGIC AREAS OF THE CENTRAL FARWEST SAN FRANCISCO BALANCE DE CENTRAL FARWEST REGION Number Per Cent Certain Doubtiul Total Certain] Doubtful Total Number Per Cent Mummer Per Cent Number Per Cent Certain Doubful| Total Certain | Doubtl| Total Certain Doubtful| Total Certain Doubtful) Total Certain Douthul Total Certain Doubtul Total 15 8. 23146 78 22.4 2 3 5 47.10 11.7 10 3 13. 9.7 2.9.12.6 000X 25 16.5 1.8 24.3 5. 8 11.6 7.0. 18.6 5 14 20.9 11.6. 32.5 0 0 0 00 0.0. 00 0 00.00.00 / 0 0 / 2.3 0.0. 2.3 0 0 00 00,00 16 0 000 00 00 0 100. 23. 2.3 0. 16.155. 0.015.5 8 2. 3 10 1.9. 29. 0 0 8 18.6. 0.018.6 0 0 00 00 00 20 0. 20 19.4. 0.0 19.4 5 0 5 11.6 0.0 11.6 2 3 10 19 291 0 / 23 00 23 80 23 103 /17.7/22.3100.|31 12 4372./ 27.9100. 250

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Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3- Light Phenom. 4-Birds 5-Clouds, Dust, etc. G-insuffic into. 7-Psycho logical -Other Total evaluaten 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4- Birds 5-Clouds, Dust, etc. G-insuffic. Into. 7-Psychological 8-Unknown s-Other Total 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom 4- Birds 5-Clouds, Dust, etc. 6-Insuffic. Info. -Psychological 8-Unknown 2-Other Total TABLE A232 EVALVATION OF UNIT SIGHTINGS THE STRATEGIC AREAS OF THE SOUTH MIDWEST REGION ATLANTA Numbes Per Cent Number NACO SAN ANTONIO BALANCE OF SOUTH MIDWES! Per Cent Number Pes Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful | Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 11, 17. 1.8 14 3 22.1 3 8 2.7 45 72 2 MOONON 10 17 91 13.0 22.1 25 41 66. 225 36.9594 6 2 4 48 48 9l 15 14 29 6.3 5.9. 12.2 5 11 143 11.9 26.2 31 11 48 13.0 7.120.1 18 11.7 11.7.23.4 - 4 1 11 36 6.3 9.9 4 6 10 95 143 23.8 38 25 43 16.0 10.5 24,5 3 26 13 3.9 1 0.9 00 0.9 0 1 24. 0.02.4 1 04 0.0. 0.4 0 0.0 0.0 0.0 1 5 34 09 4.5 0 0 0 00 0000 2 2 00 08 08 00 0.00 00 0.0 0 0 0 00 0.00.0 0 8 104 0.0.10.4. 10 2 0.10 9.0 00 9.0 000000000 0. 00.0000 0 1 24 00 24 25 0 25. 10.5 0.010.5 2. 00 2.6.26 0 0. 0 0.00.00.0 0 0 00 00 00 3 _/ $ 1.3 0.4 1.7 10 0.10 13.0 0.0130 9 0, 9 81 00 8.1 112 0 12.28.6. 0.0 28.659 0 59 248 00 248 2 13 13 2.6 0 / 0.9 0.0 0.9 2 3 24.48 7.2 5 2 1 2.10.8 29 (43/34 77 55844.2100. 5154111 51448.6100. 27 115 42 64.335.7 100. 177 61 238/144 256.100. TABLE 6233 EXALUATION DF UNIT SIGHTINGS -IN THE DE. THE SOUTH WEST STRATEGIE AREAS REGION ALBUQUERQUE BALANCE DE SOUTH WEST Number Per Cent Number Certain Doubtil Total Certain Doubtil Total Ceran Dutal Total Corin Duti Total Certain Doubtul Total Certain Percent Total Certain Dortul Total certain eat Total 5 8 42 25 67 26 4 30 18.1 2.8.20.9 31 53 13.4 31.1 44.517 14 31 11.9 98 21.1 9.10 19 1.6. 2.4. 16.0 .14 0000 0.0 13 21 98 9.1 18.9 0.0.0.8 0.8 2 4 14 14 1.8 0.8 0.0 10.8 1 00 0.7 0.7 6 22 0.0.14 1.4 6. 50 0.050 0 11 47 00 77 25 0 0.0 0.00.0 0 0 0.0 0.0 0.0 25 210. 0.02.0 34 0 34 23.8 0.0 23.8 5 6 08 42 50 3 0 3 21 0.021 63 56/19 52.949.1 V00 107 36143748125.2100 TABLE 1234 EVALVATION DE UNIT OF THE SOUTH S/GHTINGS IN THE STRATEGIC AREAS REGION LOS ANGELES BALANCE DE, SOUTH FARWEST Number Per Cent Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubfful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Cerlain Doubtful Total Certain Doubtful Total 18. 10 28 18.2 10.1 28.3 2. 3 5.3 10.515.8 5 8 13 5./ 8.113.2 _ 3 4 5.315.821.1 12 5 2 0 17 12./ 5./17.2 2 1 3 10.5 5.315.8 2 20 00 2.0 0 / 0 00.00 0.0 5.3 0.0 5.3 0 0.000 00 8 0 0 0 00 00 00 0 00.00.00 0 8 81 0.08.1 2.0 1.03.0 1.. 0 / 53: 00 5.3 3 1 53. 00 5.3. 21 _21 212 0.021.2 1 0 1 7.1 0.0 1.1 / -1.53 00 5.3 4 5 53 21.1264 15. 24 99 758 24.2.100. 10. 19 41.4/52.4100. 251

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=. Evaluation & Balloon 1-Astronomical 2-Airccaft 3-Light Phenom. 4-Birds (5-Clouds, Dust, etc. G Insuftic info. 7-Psychological &-Unknowm 19-0ther Total Evaluation 0-Baltoon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds S-Clouds, Dust, etc. 6 insuffic. info. 7-Psychological B-Unknown 9 Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc G-Insuffic, Info. 7-Psychological 8-Unknown g-Other Totad TABLE A235 EVALVATION DE OBJECT SIGHTINGS IN THE STRATEGIC AREAS CENTRAL EAST REGION NEW THE YORK HARRIS BURG WASHINGTON BALANCE OF CENTRAL EAST Number Certain Doubtful Total Certain Doubtful Number Per Cent Number Per Cent Minner Per Cent Total Certain Doubtlul Total Certain Doubtful Total Certain Doubtful Total Certain | Doubtful Total Certain Doubtfull Total Certain Doubtful Total 8 15 2.6 6.714,3 13 11.5 15 8.23 10.3 8 14 2.9. 11 1710,5 5.716.2 24 32 22.9 1.4. 305 1.0 1.0 2.0 0 00 0.0. 0.0 10 9 2 16 16.3 9.8 21.3 9.8 15 22 10.3 5.5/5.8 4.8,15.1 .10 15 12.3 7.4.17.3 26.2 62 18,5 18 14814.8 29.6 20 0.0 1.6 0 24 44 13.7: 164 301 2 0.0 1.4 1.4 9 1.0 2 3.3 0.0 3.3 2 0.1 0.00.1 0 9 3 0 11./ 11./22.2 1.2 3.7 4. 9 0 0.0 00 00 0.0 0.0 00 0.0 0.0 0.0 2 2 1.4.14 0.0 1.2 17 17 16.2 0016.2 L.le 0.0 10 0 10 6.8 1.2 0.0 6.8 10 10 112.3 10.0123 5.1 0.0.15.1 0 Like 0.0 1.6 0 0.0 0.0.0.0 10.51 0.010.5 11.5. 0.0 11.5 5 5 48 0.0 48 2 3.3 0.0. 3.3 39 3 0 39 26.2 00 12 2 0 2 2 0.0 2.5. 2.5 12 14.8 0.0 14.8 83 22 105/19.0 21.0100 2 40 21 161. 65.6.34.4100 3 2./ 00 26.7 3 5 3.7 2.5, 6.2 103 43 146 70.5.29.5 100. 53/28 81 65.4 346100. TABLE A23k EVALUATION OBJECT 5/GHT/NGS THE STRATEGIC AREAS OF THE CENTRAL MIDWEST REGION _ DAYTON BALANCE OF LENTRAL MIRKES Number Per Cent Number Per Cent Number Per Cent Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain) Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtfuf Total 2 5 10 5 6 11 26 7610.4 15 8 23 10.4 56 160.13. 15 28 7.9 9.117.0 26 2.1 16.1 21_ 11 32 14.6 76 22.2 21 2 34 45 43 20.8 818 152 12.1 27.3 19 18 31 13.2.12.5251 13 9 22 79 5513.4 L 1 00 1515 6 2_ 8 4.2 14 56 1.5 5 2 7 30 12 42 00.15 L. 0 1 07 00 07 2 3 06 12 18 0 10 5 2 0.0 00 00 0 0 00 00,00 0 0 0 00 00 00 0 10 152 00 15. 2 20 0 20 13.9 0.0 13.9 27 0. 21 165 00 16.5 0. 5 1.6 00 1.6 2 0 2 14 00 14 0. 913.6 0.0126 14 в 14 27 00 27 34 0 5 30 00 30 0 34 20.1. 00 20.7 4 0 4 61 00 61 6 1 242 01 49 4 0 4 24 00 2.4 46 20 66/697.30.3100 1102 42 144 108.19.2 100 129 35 164 18.7: 21.3100. TABLE A237 EXALVATION DE OBJECT SIGHTINGS IN THE STRATEGIC AREAS SAN THE CENTRAL ERRWEST REGION FRANCISCO BALANCE DE CENTRAL FARWES Number Per Cent Certain Doubtful Total Certain Doubtful Number Per Cent Number Per Cent Number Per Cent Total Certain| Doubttul| Tolal Certain Doubtsul Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 14 -7 2/15.11 1.5.22.6 2 2 4 15.3 53 106 3 11 86 32 11.8 3 3 6 19 7.9 15.8 15 0 0. 0 15 7. 22 16.1 1.5 23.6 5 14 237. 13.2 36.9 0 0 00 0.0.00 / 1 26 00 26 0 0 00 00 00 0 0 00. 00 00 0 0 00 00 00 0 1 00 2 26 15. 16/ 0.0. 16.1 1. 18.4 0.0 18.4 3 11 2.233 0. 0 0 0.0 00 00 18 0 18 19.4 0.0 19.4 4 4 105. 0.0 10.5 2 3 41 22 3.3 0 12.6 00 26 12 21 93 19.4/22.6100| 21 11 38 11.1 28.9100. 252

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Evaluation o-Balloon 1-Astronomicat 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. 6-insuffic. into. 7-Psycholopical 8-Unknown 9 Other Total Evaluation 0-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds j-Clouds, Dust, etc. 6-Insuftic. info. 7-Psychological &- Unknown 9-Other Total Evaluation O-Balloon 1-Astronomical 2-Aircraft 3-Light Phenom. 4-Birds 5-Clouds, Dust, etc. G- Insuffic. Info. 7-Psychological 8-Unknown g-Ottier Total TABLE A238 EVALVATION THE DE OBJECT S/EHTINGS IN THE STRATEGIC AREAS SOUTH MIOWEST REGION ATLANTA WAÇO SAN ANTONIO Per Cent Per Cent BALANCE DE SOUTH I MOWEST Number Per Cent Number Number Per Cent Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubsful| Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total 5 8 13 7.9. 12. 7.206 3 5 8 3,7 6.1 9.8 2 2 4 56 54 11.2 7. 1 6. 2.13.3 10 16 9,5 /5.9.25.4 5 13 12.7 79.206 18 28 46 220 34156.1 5 15 13. 125 5. 1013.913.9 27.8. 22 16 38. 10. 5 1.4181 3 7. 10 37 85 /2.2 4 6. 10 11.1 16.7 278 35 23 55 16 7 11.0 27? 11.6 0.01.6 0 1 12 00 12 0 1 28 00 28 / 0 1 05 0.00.5 0 00 20 00 1 4 37 1.2 49 0. 000000 2. 0. 1.10 00 1.0 0 000 00 00 0 000 00 00 0 0 00. 0000 0. 0 0 00 00.00 0 2 1 1.1.00. 11 0 6 23 00 7.3 1 28 00 28 21 0 21100, 0.016.0 2: 00. 3.2 3.2 0 0 00 0.00.0 0 0 0 00. 0.000 3 -1 4 14 65 19 9 143 0.0.14.3 0. 673 00 13 8 0 8. 222. 00 222 5/. _05/243 22243 L 2161k 3.2 0 1 12.00.12 1 1 2 28 2.8.56 5 2 7 2.4. 10, 3.4 371 26/63 587 41.3 100. 1 141 41 82/300 50.0100 22 14/366: 38.9100.155 55/2:0 238/24.2150. TABLE A239 EVALVATION DE DE THE SOUTH OBJECT SIGHINGS IN THE STRATEGIC AREAS WEST REGIeN ALBUQUERQUE BALANCE DE SOUTH WEST! Number Per Cent Certain Doubtful Total Certain Doubtful Number Per Cent Number Per Cent Number Per Cant Total Certain Doubtful Total Certain| Doubtful Total Certain Doubiful Total Certain Doubtful Total Certain] Doubtful Total" Certain Doubtful | Total 5. 3 8 5.1 318.2 23 2 25 18.4 1.6 20.0 14. 28 42 14 3 28.6_42.9 8 8 -17 6 23 136 48 18.4 16 8.2 8.2 14.4 13. 13 26 10.4 10.4 20.8 0 0 0 0.0 0.0 0.0 2 4 16163.2 00 10 10 0 / 100 08.08 1.0,0.0 1.0 5. 0 5 5/0051 2 2 00 16 16 0 9 7.2 00 7.2 0 0. 0.0. 00. 0.0 0 210 21 214 00 211 32 0 00 00 00 0 32. 256. 0.0 256. 1 3 4 10: 3141.3 0 3 2400 24 55: 43.98 56.143.9100| 99 26 125/792 20.8 100. TABLE 8240 EVALVATION 0F THE OF OBJECT - SIGHTINGS IN THE STRATEGIC AREAS SOUTH. FARWEST REGION LOS ANGELES BALANCE OF SOUTH FARWEST Certain | Doubtil Total Cerain out Toal Ceran] Doubtu Tol Certain Don Total Cerain Domil Total Cerain Doubtl, Total Consin Dout Toial cerain Doubt Total 4 8. 249.0 9.5 28.5 / 2.3 // 5 16 13.1, 4.0 19.1 2 3 53.10.515.8 1 11 48 8.3 13.1 4 53/5.8. 21.1 / 3 10.5. 5.215.2 2. 0. 2 24 00 24 / 53.00 5.3 00.00 00 0.0 0 0000. 00 0 0 0 000.00.0 0.00.0 0.0 0 1 83 0.08.3 0 1 5.3 00 5.3 1 3 24 12 3.6 0 / 53.0.0 5.3 0 14f 167. 0.0 16.7 / 53. 0.0,5.3 0 ..7 83 0.0. 8.3 $ 5 53.21.1264 63 21 84 175.0 25.0100. 9 10 19 474 52.6100. 253 and 254

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APPENDIX B WORKING PAPER FORMS 255 and 256

━ PAGE 264 ━

INDEX OF FORMS Exhibit B1. Tentative Observers Data Sheet Exhibit B2. Tentative Observers Questionnaire Exhibit B3. U. S. Air Force Technical Information Sheet. Exhibit B4. Codes for Work Sheet Exhibit B5. Work Sheet . ..... Exhibit B6. Codes for Card Bible. Exhibit B7. Card Bible . . . Exhibit B8. Example of an IBM Card ... • .... 257 and 258 Page 259 267 277 289 297 301 309 313

━ PAGE 265 ━

EXHIBIT B1 TENTATIVE OBSERVERS DATA SHEET 259 and 260

━ PAGE 266 ━

TENTATIVE OBSERVERS DATA SHEET Where Choice is Given, Circle Proper Answers, or Insert Answer 1. Date of your observation: Day Month 2. Date you reported the observation: Day Month 3. What time was it when you sighted the object: Hours A.M. P.M. Daylight Standard Zone: Eastern, Central, Montain, Pacific, 4o Length of time object was observed. Estimate: Hours 5. Where observed: Postal Adiress 6. Were were you at time of observation: Inside building, In Car, City or Toin Outdoors, State® 7. Were you moving at any time during this sighting: 8. Did you stop at any time during this sighting: 9. If you were moving - give and Direction Speed 10. How was object observed: Naked eye Eye glasses Other glass (Window or windshield) Binoculars, Telescope, Theodolite Other 11. How did you happen to notice the object: Year Year Minutes Other Minutes jecond Country - Other Yes or No Yes or No niles per hour. 261

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12. Describe what you saw as briefly as possible in the following spaces: a. Sound b. Shape c. Coior. do Size_ *. Number 1. Light brightness_ E. Light color_ ho Motion_ i. Speed_ jo Other 13. How did object disappear from view: Suddenly or Gradually Circle One 14o At any time did the object: a. Change direction. b. Change speed. C. Move behind something; Cloud, House, Tree, do Blend with background. e. Decrease Other in size. I. Decrease in brightness. & Move in front of something. n. - Other 15. When you first looked at the object, what direction were you facing?. 16. When you last saw the object, what direction were you facing? 17. In the following Sketch A, draw lines from the observer's eye to the circular arc to show the apparent elevation of the Directly object in the sky. Overhead A. When first seen, label a. B. When last seen, label b. Observer's Eye H-riz n SKEICH A 262

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18. On the following Sketch &, label a at the apparent position of the object when first seen and b at point last seen. Trace the apparent path of the object between points a and b. Overhead If possible label 1, 2, 3, etc., along the traced path to show tine successive positions of the object Horizon after equal intervals of time dur- ing the sighting. Observer's Eye SKETCH B Horizon 19. In Sketch C please show the observed features of the object such as; A. Apparent shape, (were edges pointed ni rounded), B. Apparent direction of notion (snow by arrow), and C. Other details, exhaust, trails, tails, surfaces, etc. SKETCH C 20. The sun and the moon are shown below as they appear in their correct relative size. In this siretch D, show the apparent size of what you saw. SUN OBJECT MSON SKETCH D 263

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21. In your own words please describe the sighting you observed. Use sketches if desired. All observations from the time of first sighting to the time of disappearance are important. Include a description of the weather, wind, and cloud conditions at the time of this sighting• 264

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22. Your full name: 23. Your address: 24. Your occupation: 25. Last school you attended: 26. Year of last attendance at this school: 27. Please list the names and addresses of persons who discussed this sighting with you. It is not necessary to list the names of officials or investigators. 28. Further coments which you believe are important should be entered here. Use additional cheets of the same size if necessary. 265 and 266

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EXHIBIT B2 TENTATIVE OBSERVERS QUESTIONNAIRE 267 and 268

━ PAGE 272 ━

TENTATIVE OBSERVERS QUESTIONNAIRE SECTION A 1. When did you see the object: 1.1 Date: Day 1.2 Time of Day: Month Year A.M. or P.M. (Circle One) Hrs. Min. 1.3 Time Zone: (Circle One): a. Eastern b. Central do Pacific e. Other co, Mountain (Circle One)s a. Standart Daylight Saving Lal Carole one of to followe que ion ate hou certain you are of Certain 8: Fairly certain Not very sure d. Just a yueur 2. Where were you when you saw the object: Postal Address Additional Remarks: City or Town State Country 3. Where were you located when you saw the object: (Carcle One): 2: In de a building In a car c. Outdoors d. In an airplane e. At sea f. Other 3.1 Were you: (Circle one): & In the fusident se trotion a cata In the residential section of a city? In open countryside? d. Flying near an airfield? Flying over a city? f. Flying over open country? Other 269

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4. How did you happen to notice the object? 5. When did you report to some official that you had seen the object? Day Month Year SECTION E 6. What were you doing at the time you saw the object? 6.1 What had you been doing for the 30 minutes before you saw the object? Iry to list the activity or activities and the approximate amount of time spent on each. ?. Were you moving at any time while you saw the object? (Circle One): Yes or No 7.1 you a IF you answered YES, then complete the following questions: 7.1 What direction were you moving? (Circle One): a. North e. South b. Northeast 1. Southwest •• bast 1. Southeast ho West Northwest 7.2 How fast were you moving? miles per hour. 7.3 Did you stop at any time while you were looking at the object? (Circle One): Yes or No 8. What direction were you looking when you first saw the object? (carole one): a North e. Soutr Northeast f. Southwest C. do East go West Southeast h. Northwest 270

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8.1 What direction were you looking when the object disappeared? (Circle One): a. North b. Northeast .: South Southwest c. East g. West d. Southeast h. Northwest 8.2 Circle one of the following to indicate how certain you are of your answer to the above question and preceding question (8 and 8.1). a. Certain c. Not very sur b. Fairly certain d. Just a guess 9. Were you wearing eye glasses when you saw the object? (Circle One): Yes or No 10. How was the object seen? (Circle One): a. Through window glass e. Through theodolite Through windshield Through sunglasses c. Through binoculars Through open space do Through telescope Other 11. What do you remember about the weather conditions at the time you saw the 11.1 CLOUDS (Circle One) 11.3 WEATHER (Circle One) a. Clear sky b. Hazy c. Scattered clouds d. Thick or heavy clouds e. Don't remember 11.2 WIND (Circle One) a. No wind b. Slight breeze c. Strong wind d. Don't remember b. Fog, Mist, or light rain c. Moderate or heavy rain e. Don't remember 11.4 TEMPERATURE (Circle One) a. Cold b. Cool c. Warm d. Hot e. Don't remember SECTION C 12. Estimate how long you saw the object? Hours Minutes Seconds 271

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12.1 Circle one of the following to indicate how certain you are of your answer to Question 12: a. Certain b. Fairly sure 13. Did the object 100k: (Circle One) Solid Il. Did the object at any time: c. Not very sure d. Just a guess or Transparent (Circle One for each question) 14.1 Change direction? 1L.2 Change speed? 14.3 Change size? 14•4 Change color? 14•5 Break up into parts or explode? 14.6 Give off smoke? 14•7 Change brightness? 14.8 Flicker, throb, or Yes Yes Yes Yes Tes Yes Yes Yes Don't know Don't know No Don't know Don't know Don't know No Don't know No Don't know No Don't know pulsate? 14.9 Remain motionless? Yes No Don't know 15. Did the object give off a light? (Circle One): Yes No Don't know 15.1 IF you answered YES, what was the color of the light? 16. Tell in a few words the following things about the object? 16.1 Sound 16.2 Color 17. IF there was MORE THAN ONE object, then how many were there? Draw a picture of how they were arranged and put an arrow to show the direction they were traveling. 18. Did the object at any time: 18.1 Move behind something? (Circle One) Yes No IF you answered YES, then tell what it moved behind. Don't know 272

━ PAGE 276 ━

18.2 Move in front of something? (Circle One) Yes No Don't know IF you answered YES, then tell what it moved in front of. 18.3 Blend with the background? (Circle One) Yes No Don't know 29. Which of the forden objects 1s about the sane actual eize as the object a. Pea f. Automobile b. Baseball §. Small airplane c. Basketball h. Large airplane c. Bicycle wheel i. Dirigible e. Office desk j. Other 2902 ginal one outta on orang to indicate how certain you are of your a. Certain C. Not very sure b. Fairly certain d. Uncertain 20. Try to tell the following things about the object: How high above the earth was it? How far was it from you? feet or miles. 20.3 How fast was it going? miles per hour. Circle one of the following to indicate how certain you are of your answer to the above questions: a. Certain b. Fairly certain Not very sure Just a guess 21. How did the object disappear from view? (Circle One): a. Suddenly b. Gradually Other G. Don't remember SECTION D 22. In the following sketch, imagine your eye at the point shown. Place an "A" on the curved line to show how high the object was above the horizor (skyline) when you first saw it. Place a "B" to show where it was wher Overhead - Horizon You 273

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23. In the following sketch place an "A" at the position the object was when you first saw it, and a "g" at its position when you last saw it. Overhead Horizon Horizon You Draw a picture that will show the motion that the object made. Place an "A" at the beginning of its path and a "B" at the end of its path. 25. Draw a picture that will show the shape of the object. Label and include in your sketch any details of the object that you saw and place an arrow beside the draving to show the direction the object was moving. -274

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SECTION E 26. Was this the first time that you have seen an object like this? (Circle One): Yes or No 26.1 If you answered NO, then when, where, and under what conditions did you see other ones? 27. In your opinion what do you think the object was and what might have caused 26. Give the following information about yourself: NAME Last Name First Name ADDRESS Street City Zone TELEPHONE NUMBER What is your present job? Age Sex 29. Was anyone else with you at the time you saw the object? (Circle One): Yes or No 29.1 If you answered YES, did they see the object too? (Circle One): Yes or No 29.2 Please list their names and addresses: Middle Name State 275

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30. Please add here any further comments which you believe are important. Use additional sheets of the same size paper, if necessary• 276

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EXHIBIT B3 U. S. AIR FORCE TECHNICAL INFORMATION SHEET 277 and 278

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U.S. AIR FORCE TECHNICAL INFORMATION SHEET This questionnaire has been prepared so that you can give the U. S. Air Force as much information as possible concerning the unidentified aerial phenomenon that you have observed. Please try to answer as many questions as you possibly can. The information that you give will be used for research purposes, and will be regarded as confidential material.. Your name will not be used in connection with any statements, conclusions, or publications without your permission. We request this personal information so that, if it is deemed necessary, we may contact you for further details. 1. When did you see the object? 2. Time of day: Hour Minutes Doy Month Year (Circle One): A.M. or P.M. 3. Time zone: (Circle One): a. Eastern b. Central c. Mountain d. Pacific e. Other 4. Where were you when you saw the object? (Circle One): a. Daylight Saving b. Standard Nearest Postal Address Additional remarks: City or Town State or Country 5. Estimate how long you saw the object. Hours Minutes Seconds 5.1 Circle one of the following to indicate how certain you are of your answer to Question 5. 1. Certair c. Not very sure b. Fairly certai d. Just a guess 6. What was the condition of the sky? (Circle One): a. Bright daylight b. Dull daylight c. Bright twilight d. Just a trace of daylight e. No trace of daylight f. Don't remember 7. IF you saw the object during DAYLIGHT, TWILIGHT, or DAWN, where was the SUN located as you looked at the object? (Circle One): a. In front of you • In back of you c. To your right d. To your left e. Overhead f. Don't remember 279

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8. IF you saw the object at NIGHT, TWILIGHT, or DAWN, what did you notice concerning the STARS and MOON? 8.1 STARS (Circle One): 8.2 MOON (Circle One): a. None a. Bright moonlight b. A few b. Dull moonlight c. Many c. No moonlight - pitch dark d. Don't remember d. Don't remember 9. Was the object brighter than the background of the sky? (Circle One): a. Yes b. No e. Don't remember 10. IF it was BRIGHTER THAN the sky background, was the brightness like that of an automobile headlight?: (Circle One) a. A mile or more away (a distant car)? b. Several blocks away? c. A block away? d. Several yards away? e. Other - 11. Did the object: a. Appear to stand still at any time? b. Suddenly speed up and rush away at any time? Yes Yes c. Break up into parts or explode? d. Give off smoke? Yes e. Change brightness? Yes Yes f. Change shape? Yes g. Flicker, throb; or pulsate? Yes 12. Did the object move behind something at anytime, particularly a cloud? (Circle One): Yes No Don't Know. it moved behind: (Circle One for each question) No Don't Know No Don't Know No Don't Know No Don't Know No Don't Know No Don't Know No Don't Know IF you answered YES, then tell what 13. Did the object move in front of something at anytime, particularly a cloud? (Circle One): it moved in front of: Yes No Don't Know. IF you answered YES, than tell what 14. Did the object appear: (Circle One): 15. Did you observe the object through any of the following? a. Eyeglasses Yes b. Sun glasses Yes c. Windshield Yes d. Window glass Yes No No No No a. Solid? e. Binoculars f. Telescope g. Theodolite h. Other— b. Transparent? Yes Yes Yes c. Don't Know. No No No 280

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16. Tell in a few words the following things about the object. a. Sound b. Color 17. Drow a picture that will show the shape of the object or objects. Label and include in your sketch any detail: of the object that you saw such as wings, protrusions, etc., and especially exhaust trails or vapor trails. an arrow beside the drawing to show the direction the object was moving. 18. The edges of the object were: (Circle One): a. Fuzzy or blurred e. Other '. IF he MeN MORE HAY ONE die, ran ou man men agon ine directin her hey were hoveling, 281

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O. Draw a picture that will show the motion that the object or objects made. Place an "A® at the beginnin of the path, a "B" at the end of the path, and show any changes in direction during the course 21. IF POSSIBLE, try to guess or estimate what the real size of the object was in its longest dimension. _feet. 22. How longe did this lingt or objects appear as compared with one of the following ojects held in the hand (Circle One): a. Head of a pin b. Pea c. Dime d. Nickel e. Quarter g. Silver dollar h. Baseball i. Grapefruit i. Basketball k. Other f. Half dollar 22.1 (Circle One of the following to indicate how certain you are of your answer to Question 22. a. Certain c. Not very sure b. Fairly certain d. Uncertain 23. How did the object or objects disappear from view? 24. In order that you can give as clear a picture as possible of what you saw, we would like for you to imagine that you could construct the object that you saw. Of what type material would you make it? How large would it be, and what shape would it have? Describe in your own words a common object or objects which when placed up in the sky would give the same appearance as the object which you saw. 282

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25. Where were you located when you saw the object? (Circle One): a. Inside a building b. In a car c. Outdoors d. In an airplane e. At sea f. Other 26. Were you (Circle One) a. In the business section of a city? b. In the residential section of a city? c. In open countryside? d. Flying near an airfield? e. Flying over a city? f. Flying over open country? g. Other 27. What were you doing at the time you saw the object, and how did you happen to notice it? 28. IF you were MOVING IN AN AUTOMOBILE or other vehicle at the time, then complete the following questions: 28.1 What direction were you moving? (Circle One) a. North c. East b. Northeast d. Southeast e. South f. Southwest - miles per hour. g. West h. Northwest 28.2 How fast were you moving? 28.3 Did you stop at any time while you were looking at the object? (Circle One) Yes No 29. What direction were you looking when you first saw the object? (Circle One) a. North b. Northeast c. East d. Southeast e. South f. Southwest g. West h. Northwest 30. What direction wore you looking when you last saw the object? (Circle One) a. North c. East e. South b. Northeast d. Southeast f. Southwest g. West h. Northwest 31. If you are familiar with bearing terms (angular direction), try to estimate the number of degrees the object was from true North and also the number of degrees it was upward from the horizon (elevation). 31.1 When it first appeared: a. From true North b. From horizon. _ degrees. _ degrees. 31.2 When it disappeared: a. From true North b. From horizon _ degrees. - degrees. 283

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32. In the following sketch, imagine that you are at the point shown. Place an "A" on the curved line to show how high the object was above the horizon (skyline) when you first saw it. Place a "B" on the same curved line to show how high the object was above the horizon (skyline) when you last saw it. 33. In the following larger sketch place an "A" at the position the object was when you first saw it, and a "B" at its position when you last saw it. Refer to smaller sketch as an example of how to complete the larger sketch. 284

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34. What were the weather conditions at the time you saw the object? 34.1 CLOUDS (Circle One) a. Clear sky b. Hazy c. Scattered clouds d. Thick or heavy clouds e. Don't remember 34.3 WEATHER (Circle One) a. Dry b. Fog, mist, or light rain c. Moderate or heavy rain d. Snow o. Don't remember 35. When did you report to some official that you had seen the object? 34.2 WIND (Circle One) a. No wind b. Slight breeze c. Strong wind d. Don't remember 34.4 TEMPERATURE (Circle One) a. Cold b. Cool c. Warm d. Hot o. Don't remember Day Month Year 36. Was anyone else with you at the time you saw the object? (Cirele One) Yes 36.1 IF you answered YES, did they see the object too? (Circle One) Yes No No 36.2 Please list their names and addresses: 37. Was this the first time that you had seen an object or objects like this? (Circle One) Yes No 37.1 IF you answered NO, then when, where, and under what circumstances did you see other ones? 38. In your opinion what do you think the object was and what might have caused it? 285

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39. Do you think you can estimate the speed of the object? (Circle One) Yes No IF you answered YES, then what speed would you estimate? 40. Do you think you can estimate how far away from you the object was? (Circle One) Yes No IF you answered YES, then how far away would you say it was? 41. Please give the following information about yourself: NAME Last Name Firat Name _m.p.h. _ feet. Middle Name ADDRESS Street City Zone Stato TELEPHONE NUMBER What is your present job? Age Sex Please indicate any special educational training that you have had. a. Grade school e. e. Technical school b. High school (Type) c. College f. Other special training d. Post graduate 42. Date you completed this questionnaire: Day Month Year 286

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- U.S. AIR FORCE TECHNICAL INFORMATION SHEET (SUMMARY DATA) In order that your information may be filed and coded as accurately as possible, please use the following space to write out a short description of the event that you observed. You may re- peat information that you have already given in the questionnaire, and add any further comments, statements, or sketches that you believe are important. Try to present the details of the observa- tion in the order in which they occurred. Additional pages of the same size paper may be attached if they are needed. NAME (Please Print) (Do Not Write in This Space) CODE: SIGNATURE DATE 287

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288

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EXHIBIT B4 CODES FOR WORK SHEET 289 and 290

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CODES CODE 1. GENERAL a. Every column must have at least one entry. If no data are available for any column, the Y should be used. b. If a number in any column is used to enter data, then X qualifies the data as indicated in the Code for the specific column. CODE 25 DURATION UNITS CODE 28 LATITUDE * South latitude 0 Days Hours Minutes Seconds CODE 32 LONGITUDE * East longitude CODE 41 POSITION Variable In car Outdoors In plane In building 9 CODE 42 MOVEMENT OF OBSERVER Y Wasn't noving I Was moving - stopped 2 Was moving - didn't stop Other 291

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CODE 42 OBSERVATION METHOD X Variable Y 0 Naked eye 1 Eye glasses 2 Window 3 Windshield 4 Binocular 5 Telescope 6 Theodolite 7 Radar 8 Photographic 9 Other CODE 45 COLOR X Variable Metallie 1 Light-glow-luminous Red 3 4 Orange Yellow Green Blue Violet 8 Black 9 White CODE 48 SPEED X Variable Y 0 Hovering, stationary 1 Less than 100 m.p.h. 2 100-400 m. p.h. 3 More than 400 m.p.h. 4 Meteor like 5 Not stated 6 7 8 9 Other CODE 44 SOUND X Variable Y O Motors I Jot or rockets 2 Explosion Unlike aircraft Hiss, swishing, whining Fumbling 6 Hunning or buzzing 7 None 8 Not stated 9 Other CODE 46 NUMBER 0 - 1 1 - 2 2 - 3 3 - 4 4 - 5 5 - 6 6 - 7 - 10 7 - 11 - 20 8 - 20 - 30 9 - 31 or more CODE 49 SHAPE & Variable 0 Ellipse 1 Rocket 2 Conventional aircreft Unconventional aircraft 4 Meteor, comet 5 Lenticular 6 Conical 7 Tear drop 8 Flame, tails, fire • Other CODE 47 LIGHT-COLOR X Variable Y o White 1 Black 2 Grey 3 Red 4 Orange 5 Yellow 6 Green 7 Blue 8 Violet 9 Other 292

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CODE 50 SHAPE PARAMETER &/b X - Variable Y 0 - 0.0 - 0.05 - 0.1 - 0.2 5 0.3 - 0.5 - 0.75 7 0.9 8 - 1.0 9 - Other CODE 52 LIGHT BRIGHINESS (Intensity) Decreased HOMININOI Sunlight on mirror Sunlight on aluminun Sunlight on plaster Sunlight on stone Sunlight on soil Brighter than moon Like moon Duller than moon 8 Barely visible 9 Other CODE 54 ANGULAR ACCELERATION (Change in Anguler Velocity) Variable Y 0 Zero, VEconstant 1 Increasing slowly 2 Decreasing slowly 3 Increasing fast ecreasing fas creasing very fas Decreasing very fast CODE 51 SUBTENDED VISUAL ANGLE (Referred to sun diameter) X - Decreased in size Y 0 - 0.1 1 - 0.2 2 - 0.5 3 - 0.75 8 - 4.0 to 10.0 9 - Other CODE 53 ANGULAR VELOCITY & Variable Y Very slow, 10 per second Moderate, 6º per second 4 Rapid, 12° per second 5 Very fast, 300 per second 6 Extremely fast, 900 per second 7 More than 900 per second 9 Other CODE 55 APPEARANCE BEARING - - NE 3 - SE . - S - SW • - W - NW 7 8 9 293

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CODE 56 DISAPPEARANCE BEARING X - Disappeared suddenly 0 - N 1 - NE 2 - E 3 - SE 4 - s 5 - SW 6 - W 7 - NW 8 9 CODE 57-58 ELEVATION WITH RESPECT TO GROUND, DEGREES Initial Final Y Variable Variable 0-9 1 10-19 Y HO 0-9 10-19 20-29 20-29 30-39 3 30-39 40-49 40-49 50-59 50-59 60-69 60-69 70-79 70-79 80-89 8 80-89 9 CODE 61 OBJECT ORIENTATION Apparent inclination of principal axis of obiect from horizontal X Variable +90 to 60 +60 to 30 2 3 +30 to 10 +10 to 0 5 6 0 to -10 -10 to -30 -30 to -60 8 -60 to -90 9 CODE 65 SERVICE Y CODE 62-63-64 CIVILIAN OCCUPATION CODE 66 DUTY Y 0 Pilot 1 Weather tech. 3 Army Navy Marine 3 Air Force 4 Coast Guard 5 Merchant 6 Commercial Alr • CAA. 8 Gov't. Contractor 9 Other & Navig, or bombardier 9 Other 294

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CODE 67 RANK EQUIVALENT X Officer Y It. 2nd Lt. Ist Capt. Maj. It. Col. 5 6 Col. Brig. Gen. Maj. Gen. 8 Lt. Gen. 9 General 9 Private Private, Ist Cls. Corp. serg. S. I. Serg. Mar Ban Oss. Chief Warrant CODE 77 EVALUATION OF REPORT RELIABILITY HO K Complete Quite 2 Fair 3 Doubtful 4 Poor 5 • Not 8 9 Can't be judged CODE 79-80 FINAL IDENTIFICATION X Probably Y Balloon 1 Astronomical 2 Aircraft 3 Light Phenomenon 4 Birds Clouds, dust, etc. Reeket-er-nineile Insufficient information 7 Psychological manifestations 8 Eleetrenaghette-phenemenen Unknown 9 Other CODE 76 EVALUATION OF OBSERVER RELTABILITY x Y 0 Complete 1 Quite 2 Fair 3 Doubtful 4 Poor 5 Not 6 7 8 9 Can't be judged CODE 78 PRELIMINARY IDENTIFICATION X Possibly Y 0 Balloon 1 Astronomical 3 11ent phe Light phenomenon Birds 5 Clouds, dust, etc. 6 Rocket or missile 7 Psychological manifestation 3 Electromagnetic phenomenor 9 Other 295 and 296

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EXHIBIT B5 WORK SHEET 297 and 298

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WORK SHEET Observer's Data Sheet Question Punched Card Column 1* Code 1. 2. Serial No. Serial No. Day Month Year Day Month Day Month Hrs. Description Incident serial number Insertion Observed Reported 3: 4. Rec'a ATIC Time of observation Greenwich C. I. Duration of observation Duration Latitude Location 5. Longitude Cosine latitude * Denotes separate code key is needed. 299

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Observer's Data Sheet Question 6. 7. 8. 10. Punched Card Column 41* 42% 43* I2a. 447 12c. 45* 12. 122: 10% I2i. 14b. 48% 12b. 19 49* 12b. 19 50% 12d. 14e.20 51% 12f. 14f. 52* 4. 12h. 14. 18. 19 53% 15. • 54% 55* 13. 14. 16 56* 17. 57* 58% 59 121. 21. 60 18. 19. 61* 62% 240 24. Code Description Where observer was Moving - Stopped How observed Sound Color Number Ligni-color Speed Appearance escriptior Shape a/b Size Light brightness Angular velocity Angular acceleration Describe appearance Describe disappearance Initial elevation Final elevation Altitude, 1000 ft. Object orientation Civilian occupation Service occupation Motion Elevation Altitude Observer 77* 78% 797 80% # Denotes separate code key is needed. Observer Report Preliminary Final Evaluation Identification 300

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EXHIBIT B6 CODES FOR CARD BIBLE 301 and 302

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CODES CODE 1. GENERAL a. These cards (and the corresponding WORK SHEETS) contain data from are available for any column, the Y (or 12 punch) should be used. b. Columns 22, 23, 24, 25, 26, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 40, 49, 30, апа 51 are calculated from data appearing in the U. S. Air Force Technical Information Sheet (Form A). If the basic data for these calculations are not available, the appropriate columns are left blank. c. If a number in any column is used to enter data, then X (or 1l punch) qualifies the data as indicated in the Code for the specific column. CODE 7 SIGHTING IDENTIFICATION (Inis column may or may not contain multiple punches) CODE 22 LOCAL SUN TIME (Refers to date of G.C.T. observation) Y • Same day I Previous day All sightings Unit sightings, all observers Init sightings, single observers Init sightings, multiple observer: 9 CODE 23-26 LOCAL SUN TIME (Calculated from G.C.T., date, latitude, and longitude) CODE 27 LATITUDE X South Latitude CODE 31 LONGITUDE * East Longitude 303

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U. S. Air Force Technical Information Sheet Question Punched Card Column 5. 15. 16a• 16b. 16b. 17. 19. 11a. 11b. 39. 17. 18. 24. 11f. 21. 22. 24. 10. lle. 5. 11, 17. 20. 33• 29• 31. 1. 23. 30. 31. 2. 31. 32. 41. 38 39 41 42* 43* 44 45 46 17% 48 49. 50 51* 52* 53 54 55* 56K 57* 58* 59* 60% 61* 62# 63* 647 65* 66* 67# 68* 69* 70% 71* 72% 73* 747 75* 76* 77% 787 * Denotes that separate code key is needed. 304 Code Description Hour Angle Angle of Elevation of the Sun Group Classification Sun Bearing Angle Time Units Duration of Observation Group Classification How Observed Sound Object Color Light Color Physical Color Group Classification Number Speed Shape Description Size Light Brightness Angular Velocity Motion Angular Acceleration Appearance Bearing Disappearance Bearing Initial Elevation Description Final Elevation Orientation Maneuvers Observer Occupation Observer Rating -Observer Report Rating Reliability Group Classification Final Identification

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CODE 47 GROUP CLASSIFICATION (Derived from the angle of elevation) CODE 48-51 SUN BEARING ANGLE (Calculated) CODE 51 SUN BEARING ANGLE X East of the Meridian Y 0 1 3 7 -79.99º to + 79.99º +80.00º to +89.99º +90.00º to +100.00º +100.01º to 130.00° +130.01° to +180.00 and -180.00° to -100.01° -100.00º to -90.01º -90.00º to -80.00º HUMTONO CODE 52 DURATION TIME UNITS CODE 55 DURATION GROUP CLASSIFICATION 0 Days 1 Hours 2 Minutes Seconds CODE 56 OBSERVATION METHOD X Variable Naked eye Eye glasses Window Windshield Binocular Telescope Theodolite Radar Photographic Other 0 1 5 second and less 6 - 10 second: 11 - 30 seconds 31 - 60 seconds 61 seconds - 5 minutes 6 - 30 minutes 6 N00 Over 30 minutes 9 CODE 57 SOUND X Variable Motors 1 Jets or rockets Explosion Unlike aircraft Hiss, swishing, whining 5 Rumbling Humming or buzzing None 9 Other CODE 58 OBJECT COLOR x Variable Y • Metallic 1 Light, glow, luminous 2 Red 3 Orange Yellow 5 Green 6 Blue 7 Violet 8 Black 9 White 305

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CODE 59 LIGHT COLOR X Variable Y O White 1 Black 2 Grey 3 Red 4 Orange 5 Yellow 6 Green 7 Blue 8 Violet 9 Other CODE 62 SPEED Variable Hovering, stationary Less than 100 mph 100 - 400 mph More than 400 mph Meteor-like Not stated Other CODE 63 SHAPE X Variable Ellipse 1 Rocket Conventional aircraft Unconventional aircraft Meteor, comet 5 Lenticular 6 Conical 7 Teardrop 8 Flame, tails, fire 9 Fire CODE 65 LIGHT BRICHINESS (Intensity) * Decreased 0 Sunlight on mirror 1 Sunlight on aluminum 2 Sunlight on plaster 3 Sunlight on stone 4 Sunlight on soil 5 Brighter than moon 6 Like moon 7 Duller than moon 8 Barely visible 9 Other CODE 60 COLOR GROUP CLASSIFICATION X Light glow Y 0 White 1 Metallic 2 Red 3 Orange 4 Yellow 5 Green 6 Blue 7 Violet 8 Black 9 Other CODE 61 NUMBER 1 2 7 -10 n00 11-20 21-30 9 31 or more CODE 64 SUBTENDED VISUAL ANGLE (Referred to sun diameter) & Decreased in size 0.1 0.2 0.5 0.75 1.0 1.5 7 8 2.0 4.0 4.0 to 10.0 9 Other CODE 66 ANGULAR VELOCITY X Variable 0 Zero 1 Very slow, l° per second 2 Slow, 3° per second 3 Moderate, 6° per second Rapid, 12° per second Very fast, 30° second 6 Extremely fast, 90° per second 7 More than 90° per second 9 Other 306

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- CODE 67 ANGULAR ACCELERATION (Change in angular velocity) Variable 1 2 4 Zero, V = constant. Increasing slowly Decreasing slowly Increasing fast Decreasing fast Increasing very fast Decreasing very fast CODE 68 APPEARANCE BEARING E S SW W NW 9 CODE 69 DISAPPEARANCE BEARING X Disappeared suddenly N Ne E Se S SW W NW CODE 70-71 ELEVATION WITH RESPECI TO GROUND, DEGREES Initial Final Variable X Variable Y Y 0 1 2 0-9 10-19 20-29 30-3. 0-45 50-59 60-69 70-79 80-89 0-9 10-19 20-29 30-39 40-19 50-59 60-69 70-79 80-89 CODE 72 OBJECT ORIENTATION Apparent inclination of principal axis of object from horizontal _CODE 73 MANEUVERS Variable Y 3 4 5 6 7 9 $90° to 60° +60° to 30° +30° to 10° +10° to 0° 0° 0° to -10° -10° to - 30° -30° to -60° -60° to -90° О н 2 maino ^ 00 9 307 CODE 74 OBSERVER OCCUPATION Y Civilian, occupation not stated 0 1 Army, military Navy, military Marine, military Coast guard, military Merchant marine, military Commercial air, civilian 8 Government contractor, civilian

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DE 75 EVALU.TION OF OBSERVIR RELIABILITY CODE 76 EVALUATION OF RUPORT RELIABILITY 0 Complete 1 Quite 2 Fair 3 Doubtful 4 Poor 5 Not 6 - 9 Cannot be judged CODE 77 RELIABILITY GROUP CLASSIFICATION (Based on observer and report ratings) Excellent (Observer 0 or l and Report 0 or 1) Good (Observer O or 1, Report 2, 3, or 4; Observer 2, 3, or 4, Report 0 or 1j Observer 2, Report 2) Doubtful (Observer 0 or 1, Report 5 or 9; Observer 2, Report 3, 4, 5, or 9; Observer 3 or 4, Report 2, 3, 4, 5, or 9; Observer 5 Report 0, 1, 2, 3, or 4) Poor (observer 5, 9, or to Report 5, 90 or 8) 0 Complete Quite Fair Doubtful Poor vr Not 9 Cannot be judged CODE 78 FINAI IDENTIFICATION X Probably Y 0 Balloon 1 Astronomical 2 Aircraft Light phenomenon 4 5 Birds louds, dust, etc Insufficient informatio 7 Psychological manifestations 8 Unknown 9 Other 308

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EXHIBIT B7 CARD BIBLE 309 and 310

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CARD BIBLE U. S. Air Force Technical Information Sheet Question Punched Card Column 1 Code Description 1. 2. 3. Serial No. Sub- Serial No. Sighting Serial No. Day Month Year Hours Minutes Key Hours Minutes Latitude Identification Serial Number Identification Incident Serial Number Observed Time of Observation Greenwich C. I. Local Sun Time 4. 27* 30 317 32 33 35 36* 37 Longitude Regional Area Strategic Area * Denotes that separate code key is needed. Card Deck No. is identified by an X (or Il Punch) in Column Location 311

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U.S. Air Force Technical Information Sheet Question Punched Card Column 15. 16a. 16b. 16b. 17. 19. 11a. 11b. 39. 17. 18. 24. 111, 21. 10, 11e. 22. 24. 5. 11, 17. 20. 33. 29. 310 23. 30. 31. 2. 31. 32. 41. 38 39 40, 41 427 43* 44 45 46 47* 48 49. 50 51* 527 53 54 55* 56% 57* 58* 59# 60* 61* 72* 63* 74* 65% 66* 67$ 68% 69* 70* 71* 727 73* 74* 75* 76% 777 78% * Denotes that separate code key is needed. 312 Code Description Hour Angle Angle of Elevation of the Sun Group Classification Sun Bearing Angle Time Units Duration of Observation Group Classification How Observed Sound Object Color Light Color Physical Color Group Classification Number Speed Shape Description Size Light Brightness Angular Velocity Motion Angular Acceleration Appearance Bearing Disappearance Bearing Initial Elevation Final Elevation Description Orientation Maneuvers Observer Occupation Observer Rating "Observer Report Rating Reliability Group Classification Final Identification

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EXHIBIT B8 EXAMPLE OF AN IBM CARD 313 and 314

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315 and 316 Serial Number Subserial Number Observed Lati- tude G. C. Time Regional Area Strategic Area Angle. of Eleva- tion of. the Sun Duration of Obser- vation Sound Light Color Number Shape Day Month Year Hours Minutes Degrees Hundredths Degrees Hundredths Group Time Units Duration Group Light Brightness Angular Acceleration Disappearance Bearing Final Elevation Maneuvers 15 5: 39 40 3: 4253 2915 46 Leggo 15253 345 Misseseud CCEaddoC A 0fe 1o 112101 isacrone istale) 21 23 24:3 26627 26 29 30 31 02 33 34 33 8333 :0 39 40 41 48 43 6245 405 46 43 50 511 P111 18 1 11 11 11 1 1 11 11 1 1 1 11 11 181 11 1 11 1 1 1 1 1/1/1 1 1 022222502222222252222200022222221222250222222222022 2 27202|202 0|22222022 22 Assa io solise nolaul reata cen calc7 28029 30131 32/35038 33199 9He: 39 401e1 42,43 ca45 4647 Eslesiso salea 5a ci 5s salca sa so deletea cata ecco ca calcalio 13333333333173333333313 33 3 3 37 3133333133333303333083303303333330333 3 3 3 3 3 3 3 3 +4444144 44444444445444444544444454 44 414447444448444444444144 4441 1344404 +? s 9 1c naRte: 198647A8 19.001202202: 2025 26027 26 :9 30031 33 23 34 25 36 37 56 3 4 43 63 4345 6 7 < 50 53 51 92 53 54 3316 57 58 59 15 s507 03:31 4 555535855555558 55 55355555555555555555555 556555 55 5 5 5 501 5 55 55 515 55551 5) 5 5 5,515 19 1 7177 Dal 22/23 2:96 2027 2683 19 7:7 7777777777 37777 :1 42 43 4945 4042 cale so si 5205 SAos Soarsel 59 60 04 60 65 ce 777777787777707777 88865288881 588 8808 8 8 388 86 8086 ti dichiata n ta: 2: Sisi 23 999995990900939500gsggggs 90 ES sia pie 10734 IEM 79 3 727 888 88 8 85, 81 88888888888818 818 388888888 6 39 20 41 530-3 1:45 46047 ÷309 S0 SHER63 StS: ENERE: 9 salta 9 19 20141 4243 49745 46 47 46746 50 51 52 53 8 wa col 020s Sighting Identification Incident Serial Number Key Hours Minutes Degrees Hundredths Degrees Hundredths Degrees Hundredths 2 CO E CH Local Sun Time Longi- tude Hour Angle Sun Bear- ing Angle How Observed Object Color Color Group Speed Size Angular Velocity Initial Bearing Initial Elevation Orientation Observer Occupation Observer Refiability. Sighting Reliability Blank - Unused + 20 соД~ Final Identification Report Reliability 18M - SERVICE BUREAU NEM 4 2 us 2 O8 2 NIO co 3 09% Blank - Unused EXHIBIT B8

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FOR OFFICIAL USE ONLY (AFR 190-16)