Kosmos 670
Unmanned test flight of the Soyuz 7K-S spacecraft
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Kosmos 670 (Russian: Космос 670 meaning Cosmos 670) was an unmanned Soyuz 7K-S test. It used a new and unique inclination of 50.6 degree.[1] The experience from these flights were used in the development of the successor program Soyuz spacecraft the Soyuz 7K-ST.[2][3][4][5][6][7]
| Mission type | Orbital test flight |
|---|---|
| Operator | Soviet space program |
| COSPAR ID | 1974-061A |
| SATCAT no. | 7405 |
| Mission duration | 2 days, 23 hours and 57 minutes |
| Spacecraft properties | |
| Spacecraft type | Soyuz 7K-S s/n 1L |
| Manufacturer | NPO Energia |
| Launch mass | 6,700 kg (14,800 lb) |
| Start of mission | |
| Launch date | 6 August 1974, 00:02 GMT |
| Rocket | Soyuz-U |
| Launch site | Baikonur 1/5 |
| End of mission | |
| Disposal | Deorbited |
| Landing date | 8 August 1974, 23:59 GMT |
| Orbital parameters | |
| Reference system | Geocentric |
| Perigee altitude | 211 km (131 mi) |
| Apogee altitude | 294 km (183 mi) |
| Inclination | 50.6° |
| Period | 89.5 min |
Mission parameters
- Spacecraft: 7K-S
- Mass: 6700 kg
- Crew: None
- Launched: August 6, 1974
- Landed: August 8, 1974 23:59 UTC.
- Perigee: 221 km
- Apogee: 294 km
- Inclination: 50.6 deg
- Duration: 2.99 days
