Tags: Artificialsatellite, Satellite.
Kosmos 307 (Russian: Космос 307 meaning Cosmos 307) known before launch as DS-P1-Yu No.22 was a Soviet satellite launched in 1969 as part of the Dnepropetrovsk Sputnik programme. It was a 250-kilogram (550 lb) spacecraft which was built by the Yuzhnoye Design Bureau and was used as a radar calibration target for anti-ballistic missile tests.