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

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TABLE A118 EVALUATION OF OBJECT 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 | 9.1 | 0.0 | 9.1
1-Astronomical | 2 | 9 | 11 | 14.3 | 64.3 | 78.6 | 3 | 5 | 8 | 33.3 | 55.6 | 88.9 | 2 | 5 | 7 | 22.2 | 55.6 | 77.8 | 5 | 0 | 5 | 45.5 | 0.0 | 45.5
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 | 1 | 0 | 1 | 9.1 | 0.0 | 9.1
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 | 9.1 | 9.1
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 | 11.1 | 0.0 | 11.1 | 1 | 0 | 1 | 9.1 | 0.0 | 9.1
7-Psychological | 1 | 0 | 1 | 7.1 | 0.0 | 7.1 | 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
8-Unknown | 1 | 0 | 1 | 7.1 | 0.0 | 7.1 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 0 | 1 | 11.1 | 0.0 | 11.1 | 2 | 0 | 2 | 18.2 | 0.0 | 18.2
9-Other | 0 | 1 | 1 | 0.0 | 7.1 | 7.1 | 1 | 0 | 1 | 11.1 | 0.0 | 11.1 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
Total | 4 | 10 | 14 | 28.6 | 71.4 | 100. | 4 | 5 | 9 | 44.4 | 55.6 | 100 | 4 | 5 | 9 | 44.4 | 55.6 | 100 | 10 | 1 | 11 | 90.9 | 9.1 | 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 | 4.0 | 0.0 | 4.0 | 1 | 2 | 3 | 1.4 | 2.8 | 4.2 | 0 | 3 | 3 | 0.0 | 5.0 | 5.0
1-Astronomical | 5 | 2 | 7 | 29.4 | 11.8 | 41.2 | 10 | 7 | 17 | 40.0 | 28.0 | 68.0 | 22 | 15 | 37 | 31.0 | 21.1 | 52.1 | 13 | 20 | 33 | 21.7 | 33.3 | 55.0
2-Aircraft | 4 | 1 | 5 | 23.5 | 5.9 | 29.4 | 3 | 0 | 3 | 12.0 | 0.0 | 12.0 | 7 | 9 | 16 | 9.9 | 12.7 | 22.6 | 3 | 6 | 9 | 5.0 | 10.0 | 15.0
3-Light Phenom. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 0 | 1 | 1.4 | 0.0 | 1.4 | 0 | 1 | 1 | 0.0 | 1.7 | 1.7
4-Birds | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 2 | 3 | 1.4 | 2.8 | 4.2 | 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 | 0 | 1 | 1 | 0.0 | 1.4 | 1.4 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
6-Insuffic. Info. | 1 | 0 | 1 | 5.9 | 0.0 | 5.9 | 3 | 0 | 3 | 12.0 | 0.0 | 12.0 | 2 | 0 | 2 | 2.8 | 0.0 | 2.8 | 4 | 0 | 4 | 6.7 | 0.0 | 6.7
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 | 1.7 | 0.0 | 1.7
8-Unknown | 2 | 0 | 2 | 11.8 | 0.0 | 11.8 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 6 | 0 | 6 | 8.5 | 0.0 | 8.5 | 6 | 0 | 6 | 10.0 | 0.0 | 10.0
9-Other | 2 | 0 | 2 | 11.8 | 0.0 | 11.8 | 1 | 0 | 1 | 4.0 | 0.0 | 4.0 | 2 | 0 | 2 | 2.8 | 0.0 | 2.8 | 2 | 1 | 3 | 3.3 | 1.7 | 5.0
Total | 14 | 3 | 17 | 82.4 | 17.6 | 100. | 18 | 7 | 25 | 72.0 | 28.0 | 100 | 42 | 29 | 41 | 59.2 | 40.8 | 100 | 29 | 31 | 60 | 48.3 | 51.7 | 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 | 0 | 0 | 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-Astronomical | 8 | 5 | 13 | 33.3 | 20.8 | 54.1 | 4 | 0 | 4 | 33.3 | 0.0 | 33.3 | 4 | 4 | 8 | 26.7 | 26.7 | 53.4 | 9 | 8 | 17 | 47.4 | 42.1 | 89.5
2-Aircraft | 1 | 3 | 4 | 4.2 | 12.5 | 16.7 | 1 | 2 | 3 | 8.3 | 16.7 | 25.0 | 2 | 1 | 3 | 13.3 | 6.7 | 20.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
3-Light Phenom. | 0 | 1 | 1 | 0.0 | 4.2 | 4.2 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 0 | 1 | 6.7 | 0.0 | 6.7 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
4-Birds | 1 | 1 | 2 | 4.2 | 4.2 | 8.4 | 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
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. | 1 | 0 | 1 | 4.2 | 0.0 | 4.2 | 2 | 0 | 2 | 16.7 | 0.0 | 16.7 | 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 | 3 | 0 | 3 | 12.5 | 0.0 | 12.5 | 2 | 0 | 2 | 16.7 | 0.0 | 16.7 | 2 | 0 | 2 | 13.3 | 0.0 | 13.3 | 2 | 0 | 2 | 10.5 | 0.0 | 10.5
9-Other | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 1 | 1 | 0.0 | 8.3 | 8.3 | 1 | 0 | 1 | 6.7 | 0.0 | 6.7 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
Total | 14 | 10 | 24 | 58.3 | 41.7 | 100. | 9 | 3 | 12 | 75.0 | 25.0 | 100. | 10 | 5 | 15 | 66.7 | 33.3 | 100. | 11 | 8 | 19 | 57.9 | 42.1 | 100.

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