Project Blue Book Case File
36.25N 155.52E (Pacific), June 1963June 1963
Summary
On the night of June 17, 1963, a spherical white object generating intense light was observed traveling at high speed over the Pacific Ocean at coordinates 36.25 North, 155.52 East. The object appeared to travel in a flat, straight line from an elevation of 85 degrees at 280 degrees azimuth (roughly west) to disappearing over the horizon at 0 degrees elevation and 160 degrees azimuth (roughly south-southeast). The observation lasted an unspecified duration. The object produced no tail or burning effect, and no sound was reported. The moon was visible at the time. According to the observer, the object did not conform to any known meteorological events.
The Air Force investigation noted that the object's description and trajectory could indicate a meteor, but the observer stated that it did not exhibit the typical tail or burning characteristic of a meteor. The case file suggests that Satellite ECHO I (a large inflatable communications satellite launched in 1960) was heading southeast at the time of the sighting and in a position to be observed. However, the lack of detailed observational data and duration of the sighting made a complete evaluation difficult. The case was ultimately classified as insufficient data for evaluation, though the Air Force noted that the most probable cause of the sighting was Satellite ECHO I.
A separate sighting was also recorded in Dayton, Ohio on the same date. At 8:46 p.m. local time, a witness reported an object brighter than the brightest visible star, appearing as a bright star in flight from southwest to northeast. The object was observed at an initial elevation of 86 degrees and was characteristic of a satellite sighting. The Air Force confirmed that Satellite ECHO I was north of Dayton at an elevation of 56 degrees at 10:48 p.m., heading northeast, placing it in position to be observed. This case was evaluated as consistent with a satellite sighting.
The full case file, containing 25 pages as held by the National Archives, is reproduced below.
Reported location
36.25N 155.52E (Pacific), June 1963
Date of incident
June 1963
State / country
? / XX
Page count
25 scanned pages
USAF evaluation
unknown
Microfilm
T1206, Roll 48