Tags: Artificialsatellite, Satellite.
Kosmos 400 (Russian: Космос 400 meaning Cosmos 400) also known as DS-P1-M No.3 was a satellite which was used as a target for tests of anti-satellite weapons. It was launched by the Soviet Union in 1971 as part of the Dnepropetrovsk Sputnik programme and used as a target for Kosmos 404 as part of the Istrebitel Sputnik programme.