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Mission
Kind: Mars flyby/lander
State: Spacecraft failure
Place: Mars
Operator: Lavochkin
Date
Start:
Duration: 7 months (launch to nearest approach)
Mission Ending
Last Contact: contact was maintained until 25 March 1974
Rocket
Rocket: Proton-K/D
Kind: Lavochkin
Manufacturer: Lavochkin
Mass: 3,260 kg (fueled lander and bus)
Launch Site: Baikonur 81/24
Flyby
1º Flyby: Mars
Orbit
Reference System: Heliocentric
Lander
Component: Lander
Mars 7 (Russian: Марс-7), also known as 3MP No.51P was a Soviet spacecraft launched to explore Mars. A 3MP bus spacecraft which comprised the final mission of the Mars programme, it consisted of a lander and a coast stage with instruments to study Mars as it flew past. Due to a malfunction, the lander failed to perform a maneuver necessary to enter the Martian atmosphere, missing the planet and remaining in heliocentric orbit along with the coast stage.
