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Launch SuccessfulSoviet Space Program
Proton: L1E 2K
Satellites designed to test the L1 and Blok-D systems for lunar missions.
Wednesday, 2 December 1970
Mission Data
🇷🇺Soviet Space ProgramEst. 1931
Launch VehicleProton / UR-500 K/D
Vehicle FamilyProton / UR-500
Vehicle Record24 of 39 launches (61.5%)
Provider TypeGovernment
Agency Record2288 successes / 168 failures (93%)
Success Streak17 consecutive
ProgramSoyuz · Human Spaceflight
Mission TypeTest Flight
Target OrbitElliptical Orbit
Launch Pad81/23 (81L)
Location🇰🇿 Baikonur Cosmodrome, Republic of Kazakhstan KAZ
Orbital Launches This Year#113
Agency Launches This Year#79
Launches From This Pad104
Launches From This Site1,565
Status Note
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
About Proton / UR-500 K/D
This four stage version of the Proton was originally designed to send manned circumlunar spacecraft into translunar trajectory.
Launch Site
81/23 (81L) · 46.0740°N 62.9780°E
Launch data from Launch Library 2 by The Space Devs.