Tags: Artificialsatellite, Satellite.
Kosmos 668 (Russian: Космос 668 meaning Cosmos 668) also known as DS-P1-Yu No.74 was a Soviet satellite which was launched in 1974 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.The launch of Kosmos 668 took place from Site 133/1 at the Plesetsk Cosmodrome and used a Kosmos-2I 63SM carrier rocket.