Mars 5

Mars 5
Mission typeMars orbiter
OperatorSoviet space program
COSPAR ID1973-049A
SATCAT no.6754
Mission duration7 months, 3 days
Spacecraft properties
Spacecraft3MS No.53S
ManufacturerNPO Lavochkin
Launch mass3,440 kg (7,580 lb)
Start of mission
Launch date25 July 1973, 18:55:48 (1973-07-25UTC18:55:48Z) UTC
RocketProton-K/D
Launch siteBaikonur 81/24
ContractorKhrunichev
End of mission
Last contact28 February 1974 (1974-03-01)
Orbital parameters
Reference systemAreocentric
Periareon altitude1,760 kilometres (1,090 mi)
Apoareon altitude32,586 kilometres (20,248 mi)
Inclination35.3°
Period24.88 hours
Epoch12 February 1974
Mars orbiter
Orbital insertion12 February 1974, 15:45 UTC

Mars 5 (Russian: Марс-5), also known as 3MS No.53S was a Soviet spacecraft launched to explore Mars. A 3MS spacecraft launched as part of the Mars programme, it successfully entered orbit around Mars in 1974. However, it failed a few weeks later.