Kosmos 850

Kosmos 850 (Russian: Космос 850 meaning Cosmos 850), also known as DS-P1-Yu No.79, was a Soviet satellite which was launched in 1976 as part of the Dnepropetrovsk Sputnik programme. It was a 400-kilogram (880 lb) spacecraft, which was built by the Yuzhnoye Design Bureau, and was used as a radar calibration target for anti-ballistic missile tests.[1]

Kosmos 850
Mission typeABM radar target
COSPAR ID1976-084A
SATCAT no.09387
Spacecraft properties
Spacecraft typeDS-P1-Yu
ManufacturerYuzhnoye
Launch mass400 kilograms (880 lb)
Start of mission
Launch date26 August 1976, 11:00 (1976-08-26UTC11Z) UTC
RocketKosmos-2I 63SM
Launch sitePlesetsk 133/1
End of mission
Decay date16 May 1977 (1977-05-17)
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude267 kilometres (166 mi)
Apogee altitude479 kilometres (298 mi)
Inclination70.9 degrees
Period92 minutes
 

A Kosmos-2I 63SM carrier rocket was used to launch Kosmos 850 from Site 133/1 of the Plesetsk Cosmodrome.[2] The launch occurred at 11:00 UTC on 26 August 1976, and resulted in the successfully insertion of the satellite into low Earth orbit.[3] Upon reaching orbit, the satellite was assigned its Kosmos designation, and received the International Designator 1976-084A.[4] The North American Aerospace Defense Command assigned it the catalogue number 09387.

Kosmos 850 was the last of seventy nine DS-P1-Yu satellites to be launched,[1] of which seventy two successfully achieved orbit.[5] It was operated in an orbit with a perigee of 267 kilometres (166 mi), an apogee of 479 kilometres (298 mi), 70.9 degrees of inclination, and an orbital period of 92 minutes.[6] It remained in orbit until it decayed and reentered the atmosphere on 16 May 1977.[6]

See also

References
  1. Wade, Mark. "DS-P1-Yu". Encyclopedia Astronautica. Archived from the original on 18 May 2012. Retrieved 2 September 2009.
  2. McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2 September 2009.
  3. Wade, Mark. "Kosmos 2". Encyclopedia Astronautica. Archived from the original on 8 July 2012. Retrieved 2 September 2009.
  4. "Cosmos 850". NSSDC Master Catalog. US National Space Science Data Center. Retrieved 2 September 2009.
  5. Krebs, Gunter. "DS-P1-Yu (11F618)". Gunter's Space Page. Retrieved 2 September 2009.
  6. McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 2 September 2009.


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