Discoverer 25
Template:Short description Template:Infobox spaceflight Discoverer 25, also known as Corona 9017, was an American optical reconnaissance satellite which was launched in 1961. It was the fifth of ten Corona KH-2 satellites, based on the Agena-B.[1]
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The launch of Discoverer 25 occurred at 23:02 UTC on 16 June 1961. A Thor DM-21 Agena-B rocket was used, flying from Launch Complex 75-1-1 at the Vandenberg Air Force Base.[2] Upon successfully reaching orbit, it was assigned the Harvard designation 1961 Xi 1.
Discoverer 25 was operated in a low Earth orbit, with a perigee of Script error: No such module "convert"., an apogee of Script error: No such module "convert"., 82.1 degrees of inclination, and a period of 90.4 minutes.[3] The satellite had a mass of Script error: No such module "convert".,[4] and was equipped with a panoramic camera with a focal length of Script error: No such module "convert"., which had a maximum resolution of Script error: No such module "convert"..[5] Images were recorded onto Script error: No such module "convert". film, and returned in a Satellite Recovery Vehicle two days after launch. The Satellite Recovery Vehicle used by Discoverer 25 was SRV-510. Once its images had been returned, Discoverer 25's mission was complete, and it remained in orbit until it decayed on 12 July 1961.[3]
The Satellite Recovery Vehicle was designed to be recovered in mid-air by a Fairchild C-119J Flying Boxcar aircraft. As SRV-510 descended, the C-119J was unable to capture it, and the capsule had to be recovered at sea after it landed. The film it returned was affected by streaks across images.[4]
References
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