Tags: Artificialsatellite, Satellite.
Discoverer 28 also known as Corona 9021 was an American optical reconnaissance satellite which was lost in a launch failure in 1961. It was the last KH-2 Corona’ satellite which was based around an Agena-B.The launch of Discoverer 28 occurred at 00:01 UTC on 4 August 1961. A Thor DM-21 Agena-B rocket was used flying from Launch Complex 75-1-1 at the Vandenberg Air Force Base.
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