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

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TABLE A116 EVALUATION OF UNIT SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING FOR MONTHS OF YEAR, OVER THIRTY MINUTES

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 | 1 | 0 | 1 | 25.0 | 0.0 | 25.0 | 1 | 0 | 1 | 50.0 | 0.0 | 50.0 | 2 | 0 | 2 | 40.0 | 0.0 | 40.0 | 3 | 0 | 3 | 33.3 | 0.0 | 33.3
1-Astronomical | 1 | 1 | 2 | 25.0 | 25.0 | 50.0 | 1 | 0 | 1 | 50.0 | 0.0 | 50.0 | 1 | 0 | 1 | 20.0 | 0.0 | 20.0 | 2 | 0 | 2 | 22.2 | 0.0 | 22.2
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 | 0 | 1 | 1 | 0.0 | 11.1 | 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 | 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. | 0 | 0 | 0 | 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 | 11.1 | 0.0 | 11.1
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 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 0 | 2 | 40.0 | 0.0 | 40.0 | 2 | 0 | 2 | 22.2 | 0.0 | 22.2
9-Other | 1 | 0 | 1 | 25.0 | 0.0 | 25.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
Total | 3 | 1 | 4 | 75.0 | 25.0 | 100.0 | 2 | 0 | 2 | 100.0 | 0.0 | 100.0 | 5 | 0 | 5 | 100.0 | 0.0 | 100.0 | 8 | 1 | 9 | 88.9 | 11.1 | 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 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 7 | 2 | 9 | 35.0 | 10.0 | 45.0 | 12 | 4 | 16 | 19.0 | 6.3 | 25.3 | 6 | 3 | 9 | 15.8 | 7.9 | 23.7
1-Astronomical | 0 | 1 | 1 | 0.0 | 33.3 | 33.3 | 5 | 0 | 5 | 25.0 | 0.0 | 25.0 | 8 | 4 | 12 | 12.7 | 6.3 | 19.0 | 7 | 6 | 13 | 18.4 | 15.8 | 34.2
2-Aircraft | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 0 | 2 | 10.0 | 0.0 | 10.0 | 3 | 4 | 7 | 4.8 | 6.3 | 11.1 | 2 | 1 | 3 | 5.3 | 2.6 | 7.9
3-Light Phenom. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 0 | 1 | 1.6 | 0.0 | 1.6 | 0 | 1 | 1 | 0.0 | 2.6 | 2.6
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. | 1 | 0 | 1 | 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
6-Insuffic. Info. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 5 | 0 | 5 | 7.9 | 0.0 | 7.9 | 1 | 0 | 1 | 2.6 | 0.0 | 2.6
7-Psychological | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 1 | 2 | 1.6 | 1.6 | 3.2 | 2 | 0 | 2 | 5.3 | 0.0 | 5.3
8-Unknown | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 3 | 0 | 3 | 15.0 | 0.0 | 15.0 | 18 | 0 | 18 | 28.6 | 0.0 | 28.6 | 7 | 0 | 7 | 18.4 | 0.0 | 18.4
9-Other | 1 | 0 | 1 | 33.3 | 0.0 | 33.3 | 1 | 0 | 1 | 5.0 | 0.0 | 5.0 | 2 | 0 | 2 | 3.2 | 0.0 | 3.2 | 0 | 2 | 2 | 0.0 | 5.3 | 5.3
Total | 2 | 1 | 3 | 66.6 | 33.3 | 100.0 | 18 | 2 | 20 | 90.0 | 10.0 | 100.0 | 50 | 13 | 63 | 79.4 | 20.6 | 100.0 | 25 | 13 | 38 | 65.8 | 34.2 | 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 | 8.0 | 8.0 | 3 | 1 | 4 | 30.0 | 10.0 | 40.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
1-Astronomical | 3 | 1 | 4 | 12.0 | 4.0 | 16.0 | 1 | 0 | 1 | 10.0 | 0.0 | 10.0 | 3 | 2 | 5 | 20.0 | 13.3 | 33.3 | 1 | 1 | 2 | 33.3 | 33.3 | 66.6
2-Aircraft | 2 | 2 | 4 | 8.0 | 8.0 | 16.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 2 | 3 | 6.7 | 13.3 | 20.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
3-Light Phenom. | 0 | 1 | 1 | 0.0 | 4.0 | 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
4-Birds | 1 | 0 | 1 | 4.0 | 0.0 | 4.0 | 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
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 | 8.0 | 0.0 | 8.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 0 | 2 | 13.3 | 0.0 | 13.3 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
7-Psychological | 1 | 0 | 1 | 4.0 | 0.0 | 4.0 | 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
8-Unknown | 9 | 0 | 9 | 36.0 | 0.0 | 36.0 | 3 | 0 | 3 | 30.0 | 0.0 | 30.0 | 3 | 0 | 3 | 20.0 | 0.0 | 20.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0
9-Other | 1 | 0 | 1 | 4.0 | 0.0 | 4.0 | 0 | 1 | 1 | 0.0 | 10.0 | 10.0 | 1 | 0 | 1 | 6.7 | 0.0 | 6.7 | 1 | 0 | 1 | 33.3 | 0.0 | 33.3
Total | 19 | 6 | 25 | 100.0 | 0.0 | 100.0 | 8 | 2 | 10 | 80.0 | 20.0 | 100.0 | 11 | 4 | 15 | 73.3 | 26.7 | 100.0 | 2 | 1 | 3 | 66.7 | 33.3 | 100.0

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