Declassified UFO / UAP Document
Project 10073 Record Card — Detroit, Michigan, 30 May 1957
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AI-Generated Summary
A radar sighting of an unidentified object occurred near Detroit on May 30, 1957. The object was tracked for 30 seconds at an estimated speed of 1200 knots before fading from the radar scope.
This document is a Project 10073 record card and associated incident spot report detailing a radar sighting that occurred on May 30, 1957, in the vicinity of Detroit, Michigan. At 1501Z, an unidentified object was detected on an AN/TPS 1-D radar scope by personnel from the 28th AAA Group. The radar operators, who possessed approximately 21 months of experience, described the object as a well-defined blip approximately the size of two jet aircraft. The object was tracked on a 185-degree course. The initial radar pick-up occurred at a distance of 70 nautical miles, and the object faded from the scope at 80 nautical miles, approximately 30 seconds after the initial sighting. The estimated speed of the object was calculated at 1200 knots. The 28th AAA Group notified the 661st AC and W Squadron at Selfridge Air Force Base regarding the incident. The official conclusion recorded on the project card and in the accompanying enclosure is that the sighting was likely due to an unidentified aircraft.
It is likely that this sighting was due to an unidentified a/c.
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Official Assessment
It is likely that this sighting was due to an unidentified a/c.
The object was detected on radar, appeared as a well-defined blip, and moved at an estimated speed of 1200 knots before fading from the scope.