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Kosmos 917 (Russian: Космос 917 meaning Cosmos 917) was a Soviet US-K missile early warning satellite which was launched in 1977 as part of the Soviet military's Oko programme. The satellite was designed to identify missile launches using optical telescopes and infrared sensors.[2]
| Mission type | Early warning |
|---|---|
| COSPAR ID | 1977-047A |
| SATCAT no. | 10059 |
| Mission duration | 4 years [1] |
| Spacecraft properties | |
| Spacecraft type | US-K[2] |
| Launch mass | 1,900 kilograms (4,200 lb) |
| Start of mission | |
| Launch date | 16 June 1977, 01:58 UTC |
| Rocket | Molniya-M/2BL[2] |
| Launch site | Plesetsk Cosmodrome[2][3] |
| End of mission | |
| Deactivated | 30 March 1979[1] |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Molniya [2] |
| Perigee altitude | 620 kilometres (390 mi)[4] |
| Apogee altitude | 39,725 kilometres (24,684 mi)[4] |
| Inclination | 62.9 degrees[4] |
| Period | 717.60 minutes[4] |
Kosmos 917 was launched from Site 43/4 at Plesetsk Cosmodrome in the Russian SSR.[3] A Molniya-M carrier rocket with a 2BL upper stage was used to perform the launch, which took place at 04:44 UTC on 16 June 1977.[3] The launch successfully placed the satellite into a molniya orbit. It subsequently received its Kosmos designation, and the international designator 1977-047A.[4] The United States Space Command assigned it the Satellite Catalog Number 10059.[4]
According to Pavel Podvig, the satellite self-destructed.[1]
See also
- List of Kosmos satellites (751–1000)
- List of R-7 launches (1975-1979)
- 1977 in spaceflight
- List of Oko satellites
References
- Podvig, Pavel (2002). "History and the Current Status of the Russian Early-Warning System" (PDF). Science and Global Security. 10 (1): 21–60. Bibcode:2002S&GS...10...21P. CiteSeerX 10.1.1.692.6127. doi:10.1080/08929880212328. ISSN 0892-9882. S2CID 122901563. Archived from the original (PDF) on 2012-03-15.
- "US-K (73D6)". Gunter's Space Page. 2012-03-08. Retrieved 2012-04-21.
- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2 May 2012.
- McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 30 April 2012.
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На других языках
- [en] Kosmos 917
[ru] Космос-917
Космос-917 — советский разведывательный спутник раннего предупреждения о пуске баллистических ракет с континентальной части США запущенный 16 июня 1977 года с космодрома «Плесецк» в рамках программы «Око». Был взорван на орбите.[1]Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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