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

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TABLE A104 EVALUATION OF ALL SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING FOR MONTHS OF YEAR, ELEVEN TO THIRTY SECONDS

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 | 1 | 1 | 0.0 | 6.3 | 6.3 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
1-Astronomical | 4 | 1 | 5 | 40.0 | 10.0 | 50.0 | 1 | 0 | 1 | 25.0 | 0.0 | 25.0 | 0 | 1 | 1 | 0.0 | 6.3 | 6.3 | 7 | 1 | 8 | 33.3 | 4.8 | 38.1
2-Aircraft | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 0 | 1 | 25.0 | 0.0 | 25.0 | 1 | 0 | 1 | 6.3 | 0.0 | 6.3 | 3 | 2 | 5 | 14.3 | 9.5 | 23.8
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 | 1 | 0 | 1 | 4.8 | 0.0 | 4.8
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 | 4.8 | 0.0 | 4.8
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 | 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 | 0.0 | 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 | 4 | 0 | 4 | 40.0 | 0.0 | 40.0 | 2 | 0 | 2 | 50.0 | 0.0 | 50.0 | 3 | 0 | 3 | 18.7 | 0.0 | 18.7 | 5 | 0 | 5 | 23.8 | 0.0 | 23.8
9-Other | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 9 | 10 | 6.3 | 56.2 | 62.5 | 1 | 0 | 1 | 4.8 | 0.0 | 4.8
Total | 9 | 1 | 10 | 90.0 | 10.0 | 100.0 | 4 | 0 | 4 | 100.0 | 0.0 | 100.0 | 5 | 11 | 16 | 31.3 | 68.7 | 100.0 | 18 | 3 | 21 | 85.7 | 14.3 | 100.0

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 | 1 | 1 | 2 | 5.3 | 5.3 | 10.6 | 1 | 0 | 1 | 5.6 | 0.0 | 5.6 | 4 | 5 | 9 | 4.4 | 5.5 | 4.9 | 0 | 1 | 1 | 0.0 | 2.5 | 2.5
1-Astronomical | 2 | 0 | 2 | 10.5 | 0.0 | 10.5 | 1 | 3 | 4 | 5.6 | 16.7 | 22.3 | 13 | 3 | 16 | 14.3 | 3.3 | 17.6 | 6 | 6 | 12 | 15.0 | 15.0 | 30.0
2-Aircraft | 4 | 1 | 5 | 21.1 | 5.3 | 26.4 | 5 | 2 | 7 | 27.8 | 11.1 | 38.9 | 18 | 18 | 36 | 19.8 | 19.8 | 39.6 | 6 | 4 | 10 | 15.0 | 10.0 | 25.0
3-Light Phenom. | 0 | 1 | 1 | 0.0 | 5.3 | 5.3 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 1 | 1 | 0.0 | 0.0 | 0.0
4-Birds | 0 | 1 | 1 | 0.0 | 5.3 | 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
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. | 4 | 0 | 4 | 21.1 | 0.0 | 21.1 | 3 | 0 | 3 | 16.7 | 0.0 | 16.7 | 3 | 0 | 3 | 3.3 | 0.0 | 3.3 | 2 | 0 | 2 | 7.5 | 0.0 | 7.5
7-Psychological | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 4 | 3 | 7 | 4.4 | 3.3 | 7.7 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
8-Unknown | 3 | 0 | 3 | 15.8 | 0.0 | 15.8 | 3 | 0 | 3 | 16.7 | 0.0 | 16.7 | 19 | 0 | 19 | 20.9 | 0.0 | 20.9 | 14 | 0 | 14 | 35.0 | 0.0 | 35.0
9-Other | 1 | 0 | 1 | 5.3 | 0.0 | 5.3 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 0 | 1 | 1.1 | 0.0 | 1.1 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
Total | 15 | 4 | 19 | 18.9 | 21.1 | 100.0 | 13 | 5 | 18 | 12.2 | 21.8 | 100.0 | 62 | 29 | 91 | 68.2 | 31.8 | 100.0 | 28 | 12 | 40 | 72.5 | 27.5 | 100.0

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 | 2 | 2 | 0.0 | 13.3 | 13.3 | 1 | 0 | 1 | 7.1 | 0.0 | 7.1 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 2 | 2 | 0.0 | 15.4 | 15.4
1-Astronomical | 1 | 1 | 2 | 6.7 | 6.7 | 13.4 | 6 | 1 | 7 | 42.9 | 7.1 | 50.0 | 2 | 0 | 2 | 50.0 | 0.0 | 50.0 | 3 | 0 | 3 | 23.1 | 0.0 | 23.1
2-Aircraft | 4 | 3 | 7 | 26.7 | 20.0 | 46.7 | 1 | 2 | 3 | 7.1 | 14.3 | 21.4 | 2 | 0 | 2 | 50.0 | 0.0 | 50.0 | 1 | 4 | 5 | 7.7 | 30.8 | 38.5
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 | 0 | 0 | 0.0 | 0.0 | 0.0
5-Clouds, Dust, etc. | 0 | 1 | 1 | 0.0 | 6.7 | 6.7 | 0 | 1 | 1 | 0.0 | 7.1 | 7.1 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
6-Insuffic. Info. | 2 | 0 | 2 | 13.3 | 0.0 | 13.3 | 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
7-Psychological | 1 | 0 | 1 | 6.7 | 0.0 | 6.7 | 0 | 0 | 0 | 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 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 0 | 1 | 7.1 | 0.0 | 7.1 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 0 | 2 | 15.4 | 0.0 | 15.4
9-Other | 0 | 0 | 0 | 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 | 7.7 | 0.0 | 7.7
Total | 8 | 7 | 15 | 53.3 | 46.7 | 100.0 | 10 | 4 | 14 | 11.4 | 28.6 | 100.0 | 4 | 0 | 4 | 100.0 | 0.0 | 100.0 | 7 | 6 | 13 | 53.9 | 46.1 | 100.0

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