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Discoverer 22, also known as Corona 9015, was an American optical reconnaissance satellite which was lost in a launch failure in 1961. It was the fourth of ten Corona KH-2 satellites, based on the Agena-B.[1]

Discoverer 22

Mission type	Optical reconnaissance
Operator	US Air Force/NRO
COSPAR ID
Mission duration	Failed to orbit
Spacecraft properties
Spacecraft type	Corona KH-2
Bus	Agena-B
Manufacturer	Lockheed
Launch mass	1,150 kilograms (2,540 lb)
Start of mission
Launch date	30 March 1961, 20:34:43 (1961-03-30UTC20:34:43Z) UTC
Rocket	Thor DM-21 Agena-B 300
Launch site	Vandenberg LC-1 launch pad 75-3-4
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Epoch	Planned
Discoverer ← Discoverer 21 Discoverer 23 →   Corona KH-2 ← Corona 9013 Corona 9017 →

The launch of Discoverer 22 occurred at 20:34:43 UTC on 30 March 1961. A Thor DM-21 Agena-B rocket was used, flying from launch pad 75-3-4 at the Vandenberg Air Force Base.[2] Due to a malfunction of the rocket's second stage, it failed to achieve orbit.[3]

Discoverer 22 was to have operated in a low Earth orbit. It had a mass of 1,150 kilograms (2,540 lb),[4] and was equipped with a panoramic camera with a focal length of 61 centimetres (24 in), which had a maximum resolution of 7.6 metres (25 ft).[5] Images were to have been recorded onto 70-millimeter (2.8 in) film, and returned in a Satellite Recovery Vehicle. The Satellite Recovery Vehicle carried aboard Discoverer 22 was SRV-509.[4]

References

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