| Mission type | Optical reconnaissance |
|---|---|
| Operator | US Air Force/NRO |
| Harvard designation | 1961 Alpha Kappa 1 |
| COSPAR ID | 1961-034A |
| SATCAT no. | 00213 |
| Mission duration | 4 days |
| Spacecraft properties | |
| Spacecraft type | KH-3 Corona |
| Bus | Agena-B |
| Manufacturer | Lockheed |
| Launch mass | 1,150 kilograms (2,540 lb) |
| Start of mission | |
| Launch date | 12 December 1961, 20:40 UTC |
| Rocket | Thor DM-21 Agena-B 325 |
| Launch site | Vandenberg LC-75-3-4 |
| End of mission | |
| Decay date | 8 March 1962 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 223 kilometers (139 mi) |
| Apogee altitude | 445 kilometers (277 mi) |
| Inclination | 81.1 degrees |
| Period | 91.2 minutes |
Discoverer 36, also known as Corona 9029, was an American optical reconnaissance satellite which was launched in 1961. It was a KH-3 Corona satellite, based on an Agena-B rocket.[1] It was the penultimate KH-3 satellite to be launched, the last successful mission, and the most successful of the program.[2]
The launch of Discoverer 36 occurred at 20:40 UTC on 12 December 1961. A Thor DM-21 Agena-B rocket was used, flying from Launch Complex 75-3-4 at the Vandenberg Air Force Base.[3] Upon successfully reaching orbit, it was assigned the Harvard designation 1961 Alpha Kappa 1. OSCAR 1, the first amateur radio satellite, was launched aboard the same rocket.[3]
Discoverer 36 was operated in a low Earth orbit, with a perigee of 223 kilometres (139 mi), an apogee of 445 kilometres (277 mi), 81.1 degrees of inclination, and a period of 91.2 minutes.[4] The satellite had a mass of 1,150 kilograms (2,540 lb),[5] 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).[6] Images were recorded onto 70-millimeter (2.8 in) film, and returned in a Satellite Recovery Vehicle four days after launch.[7] The Satellite Recovery Vehicle used by Discoverer 36 was SRV-525. Once its images had been returned, Discoverer 36 remained in orbit until it decayed on 8 March 1962.[4]
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Transcription
References
- ^ Krebs, Gunter. "KH-3 Corona". Gunter's Space Page. Retrieved 30 June 2010.
- ^ Lindborg, Christina; Pike, John (9 September 2000). "KH-3 Corona". Federation of American Scientists. Retrieved 30 June 2010.
- ^ a b McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 30 June 2010.
- ^ a b McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 30 June 2010.
- ^ Wade, Mark. "KH-3". Encyclopedia Astronautica. Archived from the original on 18 September 2010. Retrieved 30 June 2010.
- ^ "Corona". Mission and Spacecraft Library. NASA. Archived from the original on 3 October 2007. Retrieved 30 June 2010.
- ^ "Bail Out Into Sea: Frogmen Recover Latest Capsule". Montreal, Quebec: The Gazette. Associated Press. 18 December 1961. p. 2. Retrieved 1 January 2016.
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This page was last edited on 9 January 2022, at 00:14