Mars 5
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.
| Mission type | Mars orbiter |
|---|---|
| Operator | Lavochkin |
| COSPAR ID | 1973-049A |
| SATCAT no. | 6754 |
| Mission duration | In Mars Orbit: 50 years and 1 day |
| Spacecraft properties | |
| Spacecraft | 3MS No.53S |
| Manufacturer | Lavochkin |
| Launch mass | 3,440 kilograms (7,580 lb) |
| Start of mission | |
| Launch date | 25 July 1973, 18:55:48 UTC |
| Rocket | Proton-K/D |
| Launch site | Baikonur 81/24 |
| End of mission | |
| Last contact | 28 February 1974 |
| Orbital parameters | |
| Reference system | Areocentric |
| Periareon altitude | 1,760 kilometres (1,090 mi) |
| Apoareon altitude | 35,300 kilometres (21,900 mi) |
| Inclination | 35.3 degrees |
| Epoch | 12 February 1974 |
| Mars orbiter | |
| Orbital insertion | 12 February 1974, 15:45 UTC |
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