Dnepropetrovsk Sputnik (Russian: Днепропетровский Спутник; Ukrainian: Дніпропетровський супутник), also known as DS, was a series of satellites launched by the Soviet Union between 1961 and 1982.
DS satellites were used for a number of missions, including technological and scientific research, and radar tracking targets for anti-satellite weapons and anti-ballistic missiles.
[1][2] The first DS satellite, DS-1 No.1, was launched on the maiden flight of the Kosmos-2I 63S1 rocket on 27 October 1961.
Kosmos designations were assigned to all DS satellites, except those that failed to reach orbit, and a small number which was launched as part of the Interkosmos and Oryol programmes.
[1] The last DS satellite, Kosmos 1375, was launched aboard a Kosmos-3M on 6 June 1982.