Declassified UFO / UAP Document
PROJECT 10073 RECORD CARD — 20 Aug 63
AI-Generated Summary
A 1963 Australian sighting report of an atmospheric explosion and silver object, attributed by investigators to the decay of the Cosmos II satellite.
This Project 10073 record card documents an aerial sighting that occurred on August 20, 1963, at 20/0038Z. The incident took place in the vicinity of Turner River Station and Ord River Station in Australia. Two civilian witnesses reported observing a silver object that produced a ball of flame and left a smoke or vapor trail. The event was described as an explosion in the upper atmosphere that was powerful enough to shake buildings. The observation lasted approximately 3-4 seconds, with a flash lasting 2-3 seconds. The object was noted at an elevation of 10-15 degrees and an azimuth of 225-235. The official conclusion recorded on the card suggests the phenomenon was the possible decay of the satellite Cosmos II.
Explosion in upper atmosphere which shook buildings.
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Official Assessment
Possible decay of Cosmos II.
The event was an explosion in the upper atmosphere that shook buildings, observed by two witnesses at Ord River Station.