Project Blue Book Special Report No. 14 (Analysis of Reports of Unidentified Aerial Objects)
CIA-UAP-015 · page 181 of 312
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TABLE A109 EVALUATION OF ALL SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING FOR MONTHS OF YEAR, DURATION NOT STATED Evaluation | JANUARY | FEBRUARY | MARCH | APRIL 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-Balloon | 0 | 1 | 1 | 0.0 | 2.3 | 2.3 | 4 | 0 | 4 | 11.8 | 0.0 | 11.8 | 4 | 0 | 4 | 6.2 | 0.0 | 6.2 | 1 | 2 | 3 | 1.6 | 3.2 | 4.8 1-Astronomical | 9 | 18 | 27 | 20.9 | 41.9 | 62.8 | 8 | 8 | 16 | 23.5 | 23.5 | 47.0 | 12 | 11 | 23 | 18.5 | 16.9 | 35.4 | 24 | 6 | 30 | 38.7 | 9.7 | 48.4 2-Aircraft | 2 | 0 | 2 | 4.7 | 0.0 | 4.7 | 5 | 1 | 6 | 14.7 | 2.9 | 17.6 | 8 | 3 | 11 | 12.3 | 4.6 | 16.9 | 6 | 0 | 6 | 9.7 | 0.0 | 9.7 3-Light Phenom. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 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-Birds | 0 | 0 | 0 | 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 | 1 | 1.6 | 0.0 | 1.6 5-Clouds, Dust, etc. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 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-Insuffic. Info. | 5 | 0 | 5 | 11.6 | 0.0 | 11.6 | 1 | 0 | 1 | 2.9 | 0.0 | 2.9 | 21 | 0 | 21 | 32.3 | 0.0 | 32.3 | 12 | 0 | 12 | 19.3 | 0.0 | 19.3 7-Psychological | 0 | 0 | 0 | 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 | 1 | 1.6 | 0.0 | 1.6 8-Unknown | 6 | 0 | 6 | 13.9 | 0.0 | 13.9 | 7 | 0 | 7 | 20.6 | 0.0 | 20.6 | 3 | 0 | 3 | 4.6 | 0.0 | 4.6 | 9 | 0 | 9 | 14.5 | 0.0 | 14.5 9-Other | 2 | 0 | 2 | 4.7 | 0.0 | 4.7 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 3 | 3 | 0.0 | 4.6 | 4.6 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 Total | 24 | 19 | 43 | 55.8 | 44.2 | 100. | 25 | 9 | 34 | 73.5 | 26.5 | 100. | 48 | 17 | 65 | 73.8 | 26.2 | 100. | 54 | 8 | 62 | 87.1 | 12.9 | 100. Evaluation | MAY | JUNE | JULY | AUGUST 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-Balloon | 4 | 0 | 4 | 8.0 | 0.0 | 8.0 | 7 | 0 | 7 | 12.5 | 0.0 | 12.5 | 29 | 11 | 40 | 11.4 | 4.3 | 15.7 | 5 | 4 | 9 | 4.8 | 3.8 | 8.6 1-Astronomical | 11 | 2 | 13 | 22.0 | 4.0 | 26.0 | 7 | 3 | 10 | 12.5 | 5.4 | 17.9 | 29 | 10 | 39 | 11.4 | 3.9 | 15.3 | 9 | 8 | 17 | 8.6 | 7.7 | 16.3 2-Aircraft | 3 | 4 | 7 | 6.0 | 8.0 | 14.0 | 4 | 1 | 5 | 7.1 | 1.8 | 8.9 | 32 | 19 | 51 | 12.5 | 7.4 | 19.9 | 11 | 13 | 24 | 10.6 | 12.5 | 23.1 3-Light Phenom. | 0 | 1 | 1 | 0.0 | 2.0 | 2.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 3 | 0 | 3 | 1.2 | 0.0 | 1.2 | 2 | 0 | 2 | 1.9 | 0.0 | 1.9 4-Birds | 0 | 1 | 1 | 0.0 | 2.0 | 2.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 1 | 3 | 0.8 | 0.4 | 1.2 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 5-Clouds, Dust, etc. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 3 | 0 | 3 | 1.2 | 0.0 | 1.2 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 6-Insuffic. Info. | 6 | 0 | 6 | 12.0 | 0.0 | 12.0 | 13 | 0 | 13 | 23.2 | 0.0 | 23.2 | 41 | 0 | 41 | 16.1 | 0.0 | 16.1 | 19 | 0 | 19 | 18.3 | 0.0 | 18.3 7-Psychological | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 0 | 2 | 3.6 | 0.0 | 3.6 | 1 | 2 | 3 | 0.4 | 0.8 | 1.2 | 1 | 0 | 1 | 1.0 | 0.0 | 1.0 8-Unknown | 17 | 0 | 17 | 34.0 | 0.0 | 34.0 | 17 | 0 | 17 | 30.3 | 0.0 | 30.3 | 48 | 0 | 48 | 18.8 | 0.0 | 18.8 | 29 | 0 | 29 | 27.9 | 0.0 | 27.9 9-Other | 0 | 1 | 1 | 0.0 | 2.0 | 2.0 | 2 | 0 | 2 | 3.6 | 0.0 | 3.6 | 24 | 0 | 24 | 9.4 | 0.0 | 9.4 | 2 | 1 | 3 | 1.9 | 1.0 | 2.9 Total | 41 | 9 | 50 | 82.0 | 18.0 | 100. | 52 | 4 | 56 | 92.9 | 7.1 | 100. | 212 | 43 | 255 | 83.1 | 16.9 | 100. | 78 | 26 | 104 | 75.0 | 25.0 | 100. Evaluation | SEPTEMBER | OCTOBER | 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 0-Balloon | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 3 | 4 | 7 | 6.5 | 8.7 | 15.2 | 1 | 9 | 10 | 2.1 | 18.7 | 20.8 | 1 | 1 | 2 | 2.2 | 2.2 | 4.4 1-Astronomical | 10 | 3 | 13 | 23.2 | 7.0 | 30.0 | 3 | 7 | 10 | 6.5 | 15.2 | 21.7 | 9 | 6 | 15 | 18.7 | 12.5 | 31.2 | 6 | 11 | 17 | 13.0 | 23.9 | 36.9 2-Aircraft | 1 | 1 | 2 | 2.3 | 2.3 | 4.6 | 3 | 4 | 7 | 6.5 | 8.7 | 15.2 | 5 | 2 | 7 | 10.4 | 4.2 | 14.6 | 4 | 1 | 5 | 8.7 | 2.2 | 10.9 3-Light Phenom. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 1 | 1 | 0.0 | 2.2 | 2.2 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 4-Birds | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 0 | 2 | 4.3 | 0.0 | 4.3 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 5-Clouds, Dust, etc. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 1 | 1 | 0.0 | 2.1 | 2.1 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 6-Insuffic. Info. | 9 | 0 | 9 | 20.9 | 0.0 | 20.9 | 7 | 0 | 7 | 15.2 | 0.0 | 15.2 | 4 | 0 | 4 | 8.3 | 0.0 | 8.3 | 5 | 0 | 5 | 10.9 | 0.0 | 10.9 7-Psychological | 1 | 0 | 1 | 2.3 | 0.0 | 2.3 | 1 | 0 | 1 | 2.2 | 0.0 | 2.2 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 0 | 1 | 2.2 | 0.0 | 2.2 8-Unknown | 11 | 0 | 11 | 25.6 | 0.0 | 25.6 | 9 | 0 | 9 | 20.0 | 0.0 | 20.0 | 9 | 0 | 9 | 18.7 | 0.0 | 18.7 | 12 | 0 | 12 | 26.1 | 0.0 | 26.1 9-Other | 6 | 1 | 7 | 14.0 | 2.3 | 16.3 | 2 | 0 | 2 | 4.3 | 0.0 | 4.3 | 2 | 0 | 2 | 4.2 | 0.0 | 4.2 | 4 | 0 | 4 | 8.7 | 0.0 | 8.7 Total | 38 | 5 | 43 | 88.4 | 11.6 | 100. | 30 | 16 | 46 | 65.2 | 34.8 | 100. | 30 | 18 | 48 | 62.5 | 37.5 | 100. | 33 | 13 | 46 | 71.8 | 28.2 | 100. 172