Proton

4 satellites and probes

Spacecraft	Launch	Operator	Launch vehicle
Proton 4	November 16, 1968	—	Proton-K
Proton 3	July 6, 1966	—	Proton
Proton 2	November 2, 1965	—	Proton
Proton 1	July 16, 1965	—	Proton