Launch FailureSoviet Space Program

Proton: Mars-2b

Name: Proton: Mars-2b
Start: 1969-03-27T10:40:45Z
End: 1969-03-27T10:40:45Z
Location: 81/23 (81L)

Mars orbiter lost due to a failure of the rocket's third stage.

Thursday, 27 March 1969

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

Mission TypeRobotic Exploration

Target OrbitMars Orbit

Launch Pad81/23 (81L)

Location🇰🇿 Baikonur Cosmodrome, Republic of Kazakhstan KAZ

Orbital Launches This Year#35

Agency Launches This Year#23

Launches From This Pad104

Launches From This Site1,565

Status Note

Either the launch vehicle did not reach orbit, or the payload(s) failed to separate.

This four stage version of the Proton was originally designed to send manned circumlunar spacecraft into translunar trajectory.

81/23 (81L) · 46.0740°N 62.9780°E

Launch data from Launch Library 2 by The Space Devs.