Project Blue Book Special Report No. 14 (Analysis of Reports of Unidentified Aerial Objects)
CIA-UAP-015 · page 144 of 312
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TABLE A43 EVALUATION OF OBJECT SIGHTINGS BY SIGHTING RELIABILITY GROUPS, 1950 Evaluation | EXCELLENT | GOOD | DOUBTFUL | POOR 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 | 12.5 | 0.0 | 12.5 | 3 | 0 | 3 | 7.9 | 0.0 | 7.9 | 5 | 1 | 6 | 16.7 | 3.3 | 20.0 | 9 | 3 | 12 | 13.0 | 4.3 | 17.4 1-Astronomical | 3 | 5 | 8 | 9.4 | 15.6 | 25.0 | 9 | 4 | 13 | 23.7 | 10.5 | 34.2 | 4 | 4 | 8 | 13.3 | 13.3 | 26.6 | 9 | 1 | 10 | 13.0 | 1.4 | 14.5 2-Aircraft | 2 | 1 | 3 | 6.2 | 3.1 | 9.3 | 6 | 4 | 10 | 15.8 | 10.5 | 26.3 | 5 | 0 | 5 | 16.7 | 0.0 | 16.7 | 9 | 4 | 13 | 13.0 | 5.8 | 18.8 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 | 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. | 4 | 0 | 4 | 12.5 | 0.0 | 12.5 | 1 | 0 | 1 | 2.6 | 0.0 | 2.6 | 4 | 0 | 4 | 13.3 | 0.0 | 13.3 | 15 | 0 | 15 | 21.7 | 0.0 | 21.7 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 | 2 | 0 | 2 | 2.9 | 0.0 | 2.9 8-Unknown | 12 | 0 | 12 | 37.5 | 0.0 | 37.5 | 9 | 0 | 9 | 23.7 | 0.0 | 23.7 | 5 | 0 | 5 | 16.7 | 0.0 | 16.7 | 13 | 0 | 13 | 18.8 | 0.0 | 18.8 9-Other | 1 | 0 | 1 | 3.1 | 0.0 | 3.1 | 1 | 1 | 2 | 2.6 | 2.6 | 5.2 | 1 | 1 | 2 | 3.3 | 3.3 | 6.6 | 3 | 1 | 4 | 4.3 | 1.4 | 5.8 Total | 26 | 6 | 32 | 81.2 | 18.8 | 100. | 29 | 9 | 38 | 76.3 | 23.7 | 100. | 24 | 6 | 30 | 80.0 | 20.0 | 100. | 60 | 9 | 69 | 87.0 | 13.0 | 100. TABLE A44 EVALUATION OF OBJECT SIGHTINGS BY SIGHTING RELIABILITY GROUPS, 1951 Evaluation | EXCELLENT | GOOD | DOUBTFUL | POOR 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 | 7.7 | 0.0 | 7.7 | 4 | 1 | 5 | 12.5 | 3.1 | 15.6 | 2 | 2 | 4 | 4.8 | 4.8 | 9.6 | 1 | 0 | 1 | 2.9 | 0.0 | 2.9 1-Astronomical | 2 | 2 | 4 | 15.4 | 15.4 | 30.8 | 10 | 4 | 14 | 31.2 | 12.5 | 43.7 | 1 | 3 | 4 | 2.4 | 7.1 | 9.5 | 3 | 5 | 8 | 8.8 | 14.7 | 22.5 2-Aircraft | 3 | 1 | 4 | 23.1 | 7.7 | 30.8 | 6 | 0 | 6 | 18.8 | 0.0 | 18.8 | 2 | 3 | 5 | 4.8 | 7.1 | 11.9 | 4 | 2 | 6 | 11.8 | 5.9 | 17.7 3-Light Phenom. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 1 | 2 | 2.4 | 2.4 | 4.8 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 4-Birds | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 1 | 1 | 0.0 | 3.1 | 3.1 | 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 | 8 | 0 | 8 | 19.0 | 0.0 | 19.0 | 6 | 0 | 6 | 17.6 | 0.0 | 17.6 7-Psychological | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 1 | 1 | 2 | 2.4 | 2.4 | 4.8 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 8-Unknown | 4 | 0 | 4 | 30.0 | 0.0 | 30.8 | 6 | 0 | 6 | 18.8 | 0.0 | 18.8 | 15 | 0 | 15 | 35.7 | 0.0 | 35.7 | 8 | 0 | 8 | 23.5 | 0.0 | 23.5 9-Other | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 0 | 2 | 4.8 | 0.0 | 4.8 | 5 | 0 | 5 | 14.7 | 0.0 | 14.7 Total | 10 | 3 | 13 | 76.9 | 23.1 | 100. | 26 | 6 | 32 | 81.2 | 18.8 | 100. | 32 | 10 | 42 | 76.2 | 23.8 | 100. | 27 | 7 | 34 | 79.4 | 20.6 | 100. TABLE A45 EVALUATION OF OBJECT SIGHTINGS BY SIGHTING RELIABILITY GROUPS, 1952 Evaluation | EXCELLENT | GOOD | DOUBTFUL | POOR 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 | 10 | 7 | 17 | 8.3 | 5.8 | 14.1 | 65 | 37 | 102 | 11.2 | 6.4 | 17.6 | 54 | 51 | 105 | 9.5 | 9.0 | 18.5 | 19 | 18 | 37 | 8.1 | 7.7 | 15.8 1-Astronomical | 14 | 6 | 20 | 11.7 | 5.0 | 16.7 | 77 | 37 | 114 | 13.3 | 6.4 | 19.7 | 59 | 26 | 85 | 10.4 | 4.6 | 15.0 | 21 | 22 | 43 | 8.9 | 9.4 | 18.3 2-Aircraft | 16 | 13 | 29 | 13.3 | 10.8 | 24.1 | 68 | 66 | 134 | 11.7 | 11.4 | 23.1 | 86 | 81 | 167 | 15.2 | 14.3 | 29.5 | 23 | 16 | 49 | 9.8 | 6.8 | 16.6 3-Light Phenom. | 2 | 0 | 2 | 1.7 | 0.0 | 1.7 | 6 | 8 | 14 | 1.0 | 1.4 | 2.4 | 12 | 6 | 18 | 2.1 | 1.1 | 3.2 | 5 | 0 | 5 | 2.1 | 0.0 | 2.1 4-Birds | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 3 | 1 | 4 | 0.5 | 0.2 | 0.7 | 3 | 3 | 6 | 0.5 | 0.5 | 1.0 | 2 | 1 | 3 | 0.9 | 0.4 | 1.3 5-Clouds, Dust, etc. | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 5 | 7 | 0.3 | 0.9 | 1.2 | 1 | 2 | 3 | 0.2 | 0.4 | 0.6 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 6-Insuffic. Info. | 3 | 0 | 3 | 2.5 | 0.0 | 2.5 | 19 | 0 | 19 | 3.3 | 0.0 | 3.3 | 71 | 0 | 71 | 12.5 | 0.0 | 12.5 | 55 | 0 | 55 | 23.4 | 0.0 | 23.4 7-Psychological | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 2 | 0 | 2 | 0.3 | 0.0 | 0.3 | 17 | 4 | 21 | 3.0 | 0.7 | 3.7 | 6 | 2 | 8 | 2.6 | 0.9 | 3.5 8-Unknown | 42 | 0 | 42 | 35.0 | 0.0 | 35.0 | 154 | 0 | 154 | 26.6 | 0.0 | 26.6 | 69 | 0 | 69 | 12.2 | 0.0 | 12.2 | 38 | 0 | 38 | 16.2 | 0.0 | 16.2 9-Other | 7 | 0 | 7 | 5.8 | 0.0 | 5.8 | 25 | 5 | 30 | 4.3 | 0.9 | 5.2 | 19 | 2 | 21 | 3.4 | 0.4 | 3.8 | 0 | 7 | 7 | 0.0 | 3.0 | 3.0 Total | 94 | 26 | 120 | 78.3 | 21.7 | 100. | 421 | 159 | 580 | 72.6 | 27.4 | 100. | 391 | 175 | 566 | 69.1 | 30.9 | 100. | 169 | 66 | 235 | 71.9 | 28.1 | 100. 135