Kosmos 311

Kosmos 311
Mission typeABM radar target
COSPAR ID1969-102A Edit this at Wikidata
SATCAT no.04252Edit this on Wikidata
Spacecraft properties
Spacecraft typeDS-P1-Yu
ManufacturerYuzhnoye
Launch mass325 kilograms (717 lb)
Start of mission
Launch date24 November 1969, 11:00:04 (1969-11-24UTC11:00:04Z) UTC
RocketKosmos-2I 63SM
Launch sitePlesetsk 133/1
End of mission
Decay date10 March 1970 (1970-03-11)
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude263 kilometres (163 mi)
Apogee altitude438 kilometres (272 mi)
Inclination71 degrees
Period91.5 minutes

Kosmos 311 (Russian: Космос 311 meaning Cosmos 311), known before launch as DS-P1-Yu No.27, was a Soviet satellite which was launched in 1969 as part of the Dnepropetrovsk Sputnik programme. It was a 325-kilogram (717 lb) spacecraft, which was built by the Yuzhnoye Design Bureau, and was used as a radar calibration target for anti-ballistic missile tests.[1]

  1. ^ Wade, Mark. "DS-P1-Yu". Encyclopedia Astronautica. Archived from the original on 2 June 2012. Retrieved 14 August 2009.