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Launch FailureSoviet Space Program
Proton: TKS-VA 3 & 4
Reentry capsule of the TKS spacecraft
Thursday, 4 August 1977

Mission Data

🇷🇺Soviet Space ProgramEst. 1931
Launch VehicleProton-K
Vehicle FamilyProton / UR-500
Vehicle Record26 of 29 launches (89.7%)
Provider TypeGovernment
Agency Record2288 successes / 168 failures (93%)
Success Streak17 consecutive
Mission TypeTest Flight
Target OrbitLow Earth Orbit
Launch Pad81/24 (81P)
Location🇰🇿 Baikonur Cosmodrome, Republic of Kazakhstan KAZ
Orbital Launches This Year#76
Agency Launches This Year#61
Launches From This Pad93
Launches From This Site1,565
Status Note
Either the launch vehicle did not reach orbit, or the payload(s) failed to separate.
Launch Site
81/24 (81P) · 46.0710°N 62.9850°E
Launch data from Launch Library 2 by The Space Devs.