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4 Aug 1952 - Phoenix, Arizona , USA
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4 August 1952 02:20
Phoenix, Arizona , USA
Project Blue Book "unidentified" case. Yellow ball lengthened and narrowed to plate shape, flew straight and level for 5 minutes. Explanation: Balloon.
An unidentified object was sighted, that had an unusual appearance or performance. One yellow shifting-shape object was observed by one experienced male military witness in a city for five minutes (Parker; Vain, W).
Hynek rating: NL: Nocturnal Lights
Vallee rating: FB1: A simple sighting of a UFO traveling in a straight line across the sky.
Vallee reliability rating: 342: Reliable source, firsthand; site visit by a skilled analyst; natural explanation requires major alteration of one parameter.
Other sightings in this areaGoogle map of this location.
Sources:
- 55 - 422 - 676 - 684
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