| Mission type | Test flight |
|---|---|
| COSPAR ID | 1974-036A |
| SATCAT no. | 07313 |
| Mission duration | approximately 2.01 days |
| Spacecraft properties | |
| Spacecraft type | Soyuz 7K-T |
| Manufacturer | NPO Energia |
| Start of mission | |
| Launch date | 27 May 1974, 07:20 UTC |
| Rocket | Soyuz |
| Launch site | Baikonur 1/5[1] |
| End of mission | |
| Landing date | 29 May 1974 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 195 kilometres (121 mi) |
| Apogee altitude | 364 kilometres (226 mi) |
| Inclination | 51.6 degrees |
| Period | 90.0 minutes |
Kosmos 656 (Russian: Космос 656 meaning Cosmos 656) was an unmanned test of the Soyuz 7K-T, a variant of the Soyuz spacecraft. This Soyuz variant was intended for flights to the Almaz military space stations.[1]
