Documents / FOIA release

(Analysis of Reports of Unidentified Aerial Objects)

Central Intelligence Agency · 2005-07-12 · 312 pages · text by OCR, confidence 99%

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Approved For Release 2005/07/20 : CIA-RDP81R00560R000100060001-5 --- CODE 67 ANGULAR ACCELERATION *(Change in angular velocity)* X Variable Y 0 Zero, V = constant 1 Increasing slowly 2 Decreasing slowly 3 Increasing fast 4 Decreasing fast 5 Increasing very fast 6 Decreasing very fast 7 8 9 --- CODE 68 APPEARANCE BEARING X Y 0 N 1 NE 2 E 3 SE 4 S 5 SW 6 W 7 NW 8 9 --- CODE 69 DISAPPEARANCE BEARING X Disappeared suddenly Y 0 N 1 Ne 2 E 3 Se 4 S 5 SW 6 W 7 NW 8 9 --- CODE 70-71 ELEVATION *WITH RESPECT TO GROUND, DEGREES* Initial Final X Variable X Variable Y Y 0 0-9 0 0-9 1 10-19 1 10-19 2 20-29 2 20-29 3 30-39 3 30-39 4 40-49 4 40-49 5 50-59 5 50-59 6 60-69 6 60-69 7 70-79 7 70-79 8 80-89 8 80-89 9 9 --- CODE 72 OBJECT ORIENTATION *Apparent inclination of principal axis of object from horizontal* X Variable Y 0 +90° to 60° 1 +60° to 30° 2 +30° to 10° 3 +10° to 0° 4 0° 5 0° to -10° 6 -10° to -30° 7 -30° to -60° 8 -60° to -90° 9 --- CODE 73 MANEUVERS X Y 0 1 2 3 4 5 6 7 8 9 --- CODE 74 OBSERVER OCCUPATION X Y Civilian, occupation not stated 0 Army, military 1 Navy, military 2 Marine, military 3 Air force, military 4 Coast guard, military 5 Merchant marine, military 6 Commercial air, civilian 7 CAA, civilian 8 Government contractor, civilian 9 Civilian, other --- 307 Approved For Release 2005/07/20 : CIA-RDP81R00560R000100060001-5

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FOIA release, from the cia-readingroom collection. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model (mean confidence 99%); expect the odd misread word. 312 pages are in the text index: search them above, or from the library's search.