Documents / FOIA release
This Central Intelligence Agency document, dated 21 January 1953, records the comments and suggestions of the Scientific Advisory Panel on Unidentified Flying Objects, which met from 14 to 17 January 1953. The panel found no evidence of a direct threat to national security and no evidence linking sightings to space travelers. It rejected the Navy's analysis of the Tremonton film and recommended an educational program of training and debunking. It also listed the evidence the panel reviewed.
Read from the scan by GLM-OCR; expect the odd misread word.
Panel member believed that one answer to this problem was the use of a "doppler filter" in the receiving circuit. Another suggested that the problem might be better solved by the use of a "controlled jitter" wherein the operator receiving "very fast tracks" (on the order of 1000-12,000 mph) would operate a circuit which would alter slightly his station's pulse frequency rate. If the signal received on the screen had been caused by mutual interference with another station, the track would now show itself at a different distance from the center of the screen, if it still appeared at all. Such a technical solution was thought to be simpler and would cost much less than a "doppler filter" ## Unexplained Cosmic Ray Phenomena. Two reported cases were examined: one at Palomar Mountain, California, in October 1949, when cosmic ray counters went "off scale for a few seconds", apparently while a "V" of flying saucers was observed visually; and two, a series of observations by the "Los Alamos Bird Watchers Association" from August 1950 to January 1951, when cosmic ray coincidence counters behaved queerly. Circuit diagrams and records were available for the latter, and a Panel member was also quickly to point out that the recorded data were undoubtedly due to instrumental effects
FOIA release, from the cia-readingroom collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 21 pages are in the text index: search them above, or from the library's search.