Kosmos 869
| Mission type | Orbital test flight |
|---|---|
| Operator | Soviet space program |
| COSPAR ID | 1976-114A |
| SATCAT no. | 9564 |
| Mission duration | 17 days, 18 hours and 31 minutes |
| Spacecraft properties | |
| Spacecraft type | Soyuz 7K-S s/n 3L |
| Manufacturer | NPO Energia |
| Launch mass | 6,800 kg (15,000 lb) |
| Start of mission | |
| Launch date | 29 November 1976, 16:00 GMT |
| Rocket | Soyuz-U |
| Launch site | Baikonur 1/5 |
| End of mission | |
| Disposal | Deorbited |
| Landing date | 17 December 1976, 10:31 GMT |
| Orbital parameters | |
| Reference system | Geocentric |
| Perigee altitude | 209 km (130 mi) |
| Apogee altitude | 289 km (180 mi) |
| Inclination | 51.7° |
| Period | 89.4 min |
Kosmos 869 (Russian: Космос 869 meaning Cosmos 869) was an uncrewed military Soyuz 7K-S test. It was a somewhat successful mission. This was the third and final test flight of a new Soyuz spacecraft type 7K-S. It was designed to be a spaceship for military solo missions. At the time of the launch the program had already been discontinued. The completed spaceships were launched as uncrewed test flights: Kosmos 670, Kosmos 772 and Kosmos 869. The experience from these flights were used in the development of the successor program Soyuz spacecraft the Soyuz 7K-ST.[1] [2][3][4][5][6]
Mission parameters
- Spacecraft: Soyuz 7K-S.
- Mass: 6800 kg.
- Crew: None.
- Launched: November 29, 1976.
- Landed: December 17, 1976 10:31 UTC.
- Perigee: 209 km.
- Apogee: 289 km.
- Inclination: 51.7 deg.
- Duration: 17.99 days.
Maneuver Summary
- 196 km X 290 km orbit to 187 km X 335 km orbit. Delta V: 15 m/s.
- 187 km X 335 km orbit to 259 km X 335 km orbit. Delta V: 21 m/s.
- 259 km X 335 km orbit to 260 km X 345 km orbit. Delta V: 2 m/s.
- 260 km X 345 km orbit to 265 km X 368 km orbit. Delta V: 7 m/s.
- 265 km X 368 km orbit to 267 km X 391 km orbit. Delta V: 6 m/s.
- 267 km X 391 km orbit to 300 km X 310 km orbit. Delta V: 32 m/s.
Total Delta V: 83 m/s.
See also
References
- ^ "friends-partners.org soyuz7ks". Archived from the original on 2008-07-24. Retrieved 2006-02-03.
- ^ astronautix.com soyuz7k-s
- ^ "A brief history of space accidents". Jane's Transport Business News. February 3, 2003. Archived from the original on 2003-02-04. Retrieved 2007-10-20.
- ^ "Astronauts escape malfunctioning rocket". BBC News. 2018-10-11. Retrieved 2018-10-11.
- ^ Sanchez, Merri J. (March 2000). "A Human Factors Evaluation of a Methodology for Pressurized Crew Module Acceptability for Zero-Gravity Ingress of Spacecraft" (PDF). Houston, Texas: Lyndon B. Johnson Space Center. p. 8. Archived from the original (PDF) on 2006-10-05. Retrieved 2007-10-20.
- ^ Evans, Ben (September 28, 2013). "'We Were Swearing!' Thirty Years Since Russia's Brush With Disaster". Retrieved 2014-01-24.
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