Kosmos 772

Kosmos 772
Mission typeOrbital test flight
OperatorSoviet space program
COSPAR ID1975-093A Edit this at Wikidata
SATCAT no.8338
Mission duration3 days, 23 hours and 55 minutes
Spacecraft properties
Spacecraft typeSoyuz 7K-S s/n 2L
ManufacturerNPO Energia
Launch mass6,750 kg (14,880 lb)
Start of mission
Launch date29 September 1975, 04:15 (1975-09-29UTC04:15Z) GMT
RocketSoyuz-U
Launch siteBaikonur 1/5
End of mission
DisposalDeorbited
Landing date3 October 1975, 04:10 (1975-10-03UTC04:11Z) GMT
Orbital parameters
Reference systemGeocentric
Perigee altitude154 km (96 mi)
Apogee altitude245 km (152 mi)
Inclination51.8°
Period88.4 min

Kosmos 772 (Russian: Космос 772 meaning Cosmos 772) was an uncrewed military Soyuz 7K-S test. It was an unsuccessful mission as only one transmitter worked. Only the 166 MHz frequency transmitter operated, all of the other normal Soyuz wavelengths transmitters failed. [1][2] The experience from these flights were used in the development of the successor program Soyuz spacecraft the Soyuz 7K-ST.[3] [4][5][6][7][8]

Mission parameters

  • Spacecraft: Soyuz 7K-S
  • Mass: 6750 kg
  • Crew: None
  • Launched: September 29, 1975
  • Landed: October 3, 1975 4:10 UTC
  • Perigee: 154 km
  • Apogee: 245 km
  • Inclination: 51.8 deg
  • Duration: 3.99 days

Maneuver Summary

  • 193 km X 270 km orbit to 195 km X 300 km orbit. Delta V: 8 m/s.
  • 196 km X 300 km orbit to 196 km X 328 km orbit. Delta V: 8 m/s.

Total Delta V: 16 m/s.

See also

References

  1. ^ astronautix.com, Soyuz 7K-S
  2. ^ Soviet Space Programs, 1976-80: Manned space programs and space life sciences
  3. ^ "friends-partners.org soyuz7ks". Archived from the original on 2008-07-24. Retrieved 2006-02-03.
  4. ^ astronautix.com soyuz7k-s
  5. ^ "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.
  6. ^ "Astronauts escape malfunctioning rocket". BBC News. 2018-10-11. Retrieved 2018-10-11.
  7. ^ 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.
  8. ^ Evans, Ben (September 28, 2013). "'We Were Swearing!' Thirty Years Since Russia's Brush With Disaster". Retrieved 2014-01-24.
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