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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 (1976-11-29UTC16Z) GMT
Rocket	Soyuz-U
Launch site	Baikonur 1/5
End of mission
Disposal	Deorbited
Landing date	17 December 1976, 10:31 (1976-12-17UTC10:32Z) 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
Soyuz programme← Soyuz 23Soyuz 24 → Kosmos (satellites)← Kosmos 868Kosmos 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.

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

• Cosmos 670
• Cosmos 772

References

1. "friends-partners.org soyuz7ks". Archived from the original on 2008-07-24. Retrieved 2006-02-03.
2. astronautix.com soyuz7k-s
3. "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.
4. "Astronauts escape malfunctioning rocket". BBC News. 2018-10-11. Retrieved 2018-10-11.
5. 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.
6. Evans, Ben (September 28, 2013). "'We Were Swearing!' Thirty Years Since Russia's Brush With Disaster". Retrieved 2014-01-24.

v t e Soyuz programme
List of Soyuz missions List of Soviet human spaceflight missions List of Russian human spaceflight missions
Main topics	Soyuz (rocket family) Soyuz (spacecraft) Baikonur Cosmodrome Site 1/5 Site 31/6 Soyuz abort modes Cosmonaut ranks and positions
Past missions (by spacecraft type)	Soyuz 7K-OK (1966–1970) Kosmos 133† Soyuz 7K-OK No.1† (uncrewed) Kosmos 140 Soyuz 1† Kosmos 186 188 212 213 238 Soyuz 2 (uncrewed) 3 4 5 6 7 8 9 Soyuz 7K-L1 (1967–1970) (Zond lunar programme) Kosmos 146 154† Zond 1967A† 1967B† Zond 4 1968A† 1968B† 5 6 1969A† Zond-M 1† M 2† Zond 7 8 9 10 Soyuz 7K-L1E (1969–1970) Soyuz 7K-L1E No.1† Kosmos 382 Soyuz 7K-LOK (1971–1972) Soyuz 7K-LOK No.1† No.2† Soyuz 7K-OKS (1971) Soyuz 10† 11† Soyuz 7K-T (1972–1981) Kosmos 496 573 Soyuz 12 Kosmos 613 Soyuz 13 Kosmos 656 Soyuz 14 15† 17 18a† 18 20 (uncrewed) 21 23† 24 25† 26 27 28 29 30 31 32 (uncrewed landing) 33† 34 (uncrewed launch) 35 36 37 38 39 40 Soyuz 7K-TM (1974–1976) Kosmos 638 672 Soyuz 16 19 (Apollo–Soyuz) 22 Soyuz 7K-S (1974–1976) Kosmos 670 772† 869† Soyuz-T (1978–1986) Kosmos 1001† 1074 Soyuz T-1 (uncrewed) T-2 T-3 T-4 T-5 T-6 T-7 T-8† T-9 T-10a† T-10 T-11 T-12 T-13 T-14 T-15 Soyuz-TM (1986–2002) Soyuz TM-1 (uncrewed) TM-2 TM-3 TM-4 TM-5 TM-6 TM-7 TM-8 TM-9 TM-10 TM-11 TM-12 TM-13 TM-14 TM-15 TM-16 TM-17 TM-18 TM-19 TM-20 TM-21 TM-22 TM-23 TM-24 TM-25 TM-26 TM-27 TM-28 TM-29 TM-30 TM-31 TM-32 TM-33 TM-34 Soyuz-TMA (2002–2012) Soyuz TMA-1 TMA-2 TMA-3 TMA-4 TMA-5 TMA-6 TMA-7 TMA-8 TMA-9 TMA-10 TMA-11 TMA-12 TMA-13 TMA-14 TMA-15 TMA-16 TMA-17 TMA-18 TMA-19 TMA-20 TMA-21 TMA-22 Soyuz-TMA-M (2010–2016) Soyuz TMA-01M TMA-02M TMA-03M TMA-04M TMA-05M TMA-06M TMA-07M TMA-08M TMA-09M TMA-10M TMA-11M TMA-12M TMA-13M TMA-14M TMA-15M TMA-16M TMA-17M TMA-18M TMA-19M TMA-20M Soyuz MS (2016–present) Soyuz MS-01 MS-02 MS-03 MS-04 MS-05 MS-06 MS-07 MS-08 MS-09 MS-10† MS-11 MS-12 MS-13 MS-14 (uncrewed) MS-15 MS-16 MS-17 MS-18 MS-19 MS-20 MS-21 MS-22 (uncrewed landing) MS-23 (uncrewed launch) MS-24 MS-25
Current missions	MS-26
Future missions	2025 MS-27 MS-28 2026 MS-29
Uncrewed missions are designated as Kosmos instead of Soyuz; exceptions are noted "(uncrewed)". The † sign designates failed missions. Italics designates cancelled missions.

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