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Discoverer_27 abstract "Discoverer 27, also known as Corona 9020A, was an American area survey optical reconnaissance satellite launched in 1961, but which failed to achieve orbit. It was a KH-5 Argon satellite, based around an Agena-B. It was the fourth KH-5 to be launched, the second consecutive KH-5 launch failure, and the fourth consecutive KH-5 mission failure.The launch of Discoverer 27 occurred at 22:35 UTC on 21 July 1961. A Thor DM-21 Agena-B rocket was used, flying from Launch Complex 75-3-4 at the Vandenberg Air Force Base. As it ascended towards orbit, the rocket's pitch became anomalous, causing the range safety officer to command the rocket to self-destruct by means of its flight termination system.Discoverer 27 was designed to operated in a low Earth orbit, and had a mass of 1,150 kilograms (2,540 lb). It was equipped with a frame camera with a focal length of 76 millimetres (3.0 in), which had a maximum resolution of 140 metres (460 ft). The camera would have recorded images onto 127-millimeter (5.0 in) film, which would have been returned in a Satellite Recovery Vehicle, before the satellite ceased operations. The Satellite Recovery Vehicle carried by Discoverer 27 was SRV-524.".
Discoverer_27 thumbnail Thor_Agena_B_with_Discoverer_27_(Jul._21,_1961).gif?width=300.
Discoverer_27 wikiPageID "27804331".
Discoverer_27 wikiPageRevisionID "588731548".
Discoverer_27 apsis "gee".
Discoverer_27 hasPhotoCollection Discoverer_27.
Discoverer_27 launchDate "--07-21".
Discoverer_27 launchRocket "Thor DM-21 Agena-B 322".
Discoverer_27 launchSite Vandenberg_Air_Force_Base.
Discoverer_27 launchSite Vandenberg_AFB_Launch_Complex_75.
Discoverer_27 manufacturer Lockheed_Corporation.
Discoverer_27 missionDuration "Failed to orbit".
Discoverer_27 missionType "Optical reconnaissance".
Discoverer_27 name "Discoverer 27".
Discoverer_27 operator National_Reconnaissance_Office.
Discoverer_27 operator United_States_Air_Force.
Discoverer_27 orbitEpoch "Planned".
Discoverer_27 orbitReference Geocentric_orbit.
Discoverer_27 orbitRegime Low_Earth_orbit.
Discoverer_27 spacecraftBus RM-81_Agena.
Discoverer_27 spacecraftType KH-5_Argon.
Discoverer_27 subject Category:Satellite_launch_failures.
Discoverer_27 subject Category:Spacecraft_launched_in_1961.
Discoverer_27 type ArtificialSatellite.
Discoverer_27 type Satellite.
Discoverer_27 type Thing.
Discoverer_27 comment "Discoverer 27, also known as Corona 9020A, was an American area survey optical reconnaissance satellite launched in 1961, but which failed to achieve orbit. It was a KH-5 Argon satellite, based around an Agena-B. It was the fourth KH-5 to be launched, the second consecutive KH-5 launch failure, and the fourth consecutive KH-5 mission failure.The launch of Discoverer 27 occurred at 22:35 UTC on 21 July 1961.".
Discoverer_27 label "Discoverer 27".
Discoverer_27 label "Discoverer 27".
Discoverer_27 sameAs Discoverer_27.
Discoverer_27 sameAs m.0ccb0dc.
Discoverer_27 sameAs Q5281809.
Discoverer_27 sameAs Q5281809.
Discoverer_27 wasDerivedFrom Discoverer_27?oldid=588731548.
Discoverer_27 depiction Thor_Agena_B_with_Discoverer_27_(Jul._21,_1961).gif.
Discoverer_27 isPrimaryTopicOf Discoverer_27.