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This NICAP compilation gathers Air Force Project Blue Book and related records on a 24 April 1949 sighting three miles north of Arrey, New Mexico, where a balloon crew from White Sands Proving Ground tracked a white ellipsoid object with a theodolite for about 60 seconds. It includes the observer's statement, a Project 10073 record card concluding UNIDENTIFIED, a 17 May 1949 OSI special inquiry report from Kelly AFB, and a completed investigation questionnaire. It also contains extracts from the Project Grudge report, including Dr. Hynek's incident index.
“The Unexplained Files”1 page
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total time of observation of about 60 seconds. The object was not a balloon and was some distance away. Assuming escape velocity, a track is enclosed which figures elevation above the station of about 300,000 feet over the observed period. If this is true, the flight would have probably gone over the White Sands Proving Ground, Holloman Air Force Base, and Los Alamos.
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