Project Blue Book Special Report No. 14 (Analysis of Reports of Unidentified Aerial Objects)

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TABLE A102 EVALUATION OF ALL SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING FOR MONTHS OF YEAR, FIVE SECONDS OR LESS

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 | 0 | 0 | 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 | 5.6 | 0.0 | 5.6
1-Astronomical | 5 | 21 | 26 | 16.7 | 70.0 | 86.7 | 4 | 6 | 10 | 36.4 | 54.5 | 90.9 | 6 | 8 | 14 | 37.5 | 50.0 | 87.5 | 11 | 0 | 11 | 61.1 | 0.0 | 61.1
2-Aircraft | 0 | 0 | 0 | 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 | 11.1 | 0.0 | 11.1
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 | 0 | 1 | 1 | 0.0 | 5.6 | 5.6
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. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 0 | 1 | 6.3 | 0.0 | 6.3 | 1 | 0 | 1 | 5.6 | 0.0 | 5.6
7-Psychological | 1 | 0 | 1 | 3.3 | 0.0 | 3.3 | 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
8-Unknown | 2 | 0 | 2 | 6.7 | 0.0 | 6.7 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 0 | 1 | 6.3 | 0.0 | 6.3 | 2 | 0 | 2 | 11.1 | 0.0 | 11.1
9-Other | 0 | 1 | 1 | 0.0 | 3.3 | 3.3 | 1 | 0 | 1 | 9.1 | 0.0 | 9.1 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
Total | 8 | 22 | 30 | 26.7 | 13.3 | 100. | 5 | 6 | 11 | 45.5 | 54.5 | 100. | 8 | 8 | 16 | 50.0 | 50.0 | 100. | 17 | 1 | 18 | 94.4 | 5.6 | 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 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 0 | 1 | 3.7 | 0.0 | 3.7 | 1 | 2 | 3 | 0.9 | 1.8 | 2.7 | 0 | 3 | 3 | 0.0 | 3.5 | 3.5
1-Astronomical | 6 | 3 | 9 | 25.0 | 12.5 | 37.5 | 10 | 8 | 18 | 37.0 | 29.6 | 66.6 | 38 | 24 | 62 | 34.8 | 22.0 | 56.8 | 15 | 40 | 55 | 17.4 | 46.5 | 63.9
2-Aircraft | 5 | 1 | 6 | 20.8 | 4.1 | 24.9 | 3 | 1 | 4 | 11.1 | 3.7 | 14.8 | 11 | 12 | 23 | 10.1 | 11.0 | 21.1 | 3 | 8 | 11 | 3.5 | 9.3 | 12.8
3-Light Phenom. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 0 | 1 | 0.9 | 0.0 | 0.9 | 0 | 1 | 1 | 0.0 | 1.2 | 1.2
4-Birds | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 2 | 3 | 0.9 | 1.8 | 2.7 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
5-Clouds, Dust, etc. | 1 | 0 | 1 | 4.1 | 0.0 | 4.1 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 1 | 1 | 0.0 | 0.9 | 0.9 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
6-Insuffic. Info. | 3 | 0 | 3 | 12.5 | 0.0 | 12.5 | 3 | 0 | 3 | 11.1 | 0.0 | 11.1 | 2 | 0 | 2 | 1.8 | 0.0 | 1.8 | 6 | 0 | 6 | 7.0 | 0.0 | 7.0
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 | 1.2 | 0.0 | 1.2
8-Unknown | 2 | 0 | 2 | 8.3 | 0.0 | 8.3 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 12 | 0 | 12 | 11.0 | 0.0 | 11.0 | 6 | 0 | 6 | 7.0 | 0.0 | 7.0
9-Other | 3 | 0 | 3 | 17.5 | 0.0 | 17.5 | 1 | 0 | 1 | 3.7 | 0.0 | 3.7 | 2 | 0 | 2 | 1.8 | 0.0 | 1.8 | 2 | 1 | 3 | 2.3 | 1.2 | 3.5
Total | 20 | 4 | 24 | 83.3 | 16.7 | 100. | 18 | 9 | 27 | 66.7 | 33.3 | 100. | 68 | 41 | 109 | 62.4 | 37.6 | 100. | 33 | 53 | 86 | 38.4 | 61.6 | 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 | 0 | 2 | 2 | 0.0 | 5.6 | 5.6 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
1-Astronomical | 12 | 1 | 13 | 57.1 | 4.8 | 61.9 | 17 | 6 | 23 | 47.2 | 16.7 | 63.9 | 7 | 14 | 21 | 24.1 | 48.3 | 72.4 | 12 | 12 | 24 | 40.0 | 40.0 | 80.0
2-Aircraft | 1 | 2 | 3 | 4.8 | 9.5 | 14.3 | 1 | 3 | 4 | 2.8 | 8.3 | 11.1 | 2 | 1 | 3 | 6.9 | 3.4 | 10.3 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
3-Light Phenom. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 1 | 1 | 0.0 | 2.8 | 2.8 | 1 | 0 | 1 | 3.4 | 0.0 | 3.4 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
4-Birds | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 1 | 2 | 2.8 | 2.8 | 5.6 | 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 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
6-Insuffic. Info. | 2 | 0 | 2 | 9.5 | 0.0 | 9.5 | 1 | 0 | 1 | 2.8 | 0.0 | 2.8 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
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 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
8-Unknown | 2 | 0 | 2 | 9.5 | 0.0 | 9.5 | 3 | 0 | 3 | 8.3 | 0.0 | 8.3 | 3 | 0 | 3 | 10.3 | 0.0 | 10.3 | 6 | 0 | 6 | 20.0 | 0.0 | 20.0
9-Other | 0 | 1 | 1 | 0.0 | 4.8 | 4.8 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 0 | 1 | 3.4 | 0.0 | 3.4 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
Total | 17 | 4 | 21 | 81.0 | 19.0 | 100. | 23 | 13 | 36 | 63.9 | 36.1 | 100. | 14 | 15 | 29 | 48.3 | 51.7 | 100. | 18 | 12 | 30 | 60.0 | 40.0 | 100.

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