Kosmos 869 Explained
| Kosmos 869 |
| Mission Type: | Orbital test flight |
| Operator: | Soviet space program |
| Cospar Id: | 1976-114A |
| Satcat: | 9564 |
| Spacecraft Type: | Soyuz 7K-S s/n 3L |
| Manufacturer: | NPO Energia |
| Launch Mass: | 6800kg (15,000lb) |
| Launch Date: | GMT |
| Launch Rocket: | Soyuz-U |
| Launch Site: | Baikonur 1/5 |
| Disposal Type: | Deorbited |
| Landing Date: | GMT |
| Orbit Reference: | Geocentric |
| Orbit Periapsis: | 2090NaN0 |
| Orbit Apoapsis: | 2890NaN0 |
| Orbit Inclination: | 51.7° |
| Orbit Period: | 89.4 min |
| Apsis: | gee |
| Programme: | Soyuz programme |
| Previous Mission: | Soyuz 23 |
| Next Mission: | Soyuz 24 |
| Programme2: | Kosmos (satellites) |
| Previous Mission2: | Kosmos 868 |
| Next Mission2: | Kosmos 870 |
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.
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
Notes and References
- Web site: friends-partners.org soyuz7ks . 2006-02-03 . https://web.archive.org/web/20080724205431/http://www.friends-partners.org/partners/mwade/craft/soyuz7ks.htm . 2008-07-24 . dead .
- https://web.archive.org/web/20160820192227/http://www.astronautix.com/s/soyuz7k-s.html astronautix.com soyuz7k-s
- Web site: A brief history of space accidents. Jane's Transport Business News. https://web.archive.org/web/20030204073904/http://www.janes.com/aerospace/civil/news/jsd/jsd030203_3_n.shtml. February 3, 2003. 2003-02-04. 2007-10-20.
- News: Astronauts escape malfunctioning rocket. 2018-10-11. BBC News. 2018-10-11. en-GB.
- Web site: A Human Factors Evaluation of a Methodology for Pressurized Crew Module Acceptability for Zero-Gravity Ingress of Spacecraft. PDF. March 2000. 8. Sanchez. Merri J.. Lyndon B. Johnson Space Center. Houston, Texas. 2007-10-20. dead. https://web.archive.org/web/20061005121847/http://ston.jsc.nasa.gov/collections/TRS/_techrep/TM-2000-209764.pdf. 2006-10-05.
- Web site: 'We Were Swearing!' Thirty Years Since Russia's Brush With Disaster. September 28, 2013. Evans. Ben. 2014-01-24.
