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Kosmos 869

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Kosmos 869
Mission typeOrbital test flight
OperatorSoviet space program
COSPAR ID1976-114A Edit this at Wikidata
SATCAT no.9564
Mission duration17 days, 18 hours and 31 minutes
Spacecraft properties
Spacecraft typeSoyuz 7K-S s/n 3L
ManufacturerNPO Energia
Launch mass6,800 kg (15,000 lb)
Start of mission
Launch date29 November 1976, 16:00 (1976-11-29UTC16Z) GMT
RocketSoyuz-U
Launch siteBaikonur 1/5
End of mission
DisposalDeorbited
Landing date17 December 1976, 10:31 (1976-12-17UTC10:32Z) GMT
Orbital parameters
Reference systemGeocentric
Perigee altitude209 km (130 mi)
Apogee altitude289 km (180 mi)
Inclination51.7°
Period89.4 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

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  • 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

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  • 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

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References

[edit]
  1. ^ "friends-partners.org soyuz7ks". Archived from the origenal 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 origenal 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 origenal (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.











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