Kosmos 140
| Mission type | Test flight |
|---|---|
| Operator | Experimental Design Bureau (OKB-1) |
| COSPAR ID | 1967-009A |
| SATCAT no. | 02667 |
| Mission duration | 2 days |
| Spacecraft properties | |
| Spacecraft | Soyuz 7K-OK No.3 |
| Spacecraft type | Soyuz 7K-OK |
| Manufacturer | Experimental Design Bureau (OKB-1) |
| Launch mass | 6450 kg |
| Landing mass | 2500 kg |
| Dimensions | 7.13 m (23.4 ft) long 2.72 m (8 ft 11 in) wide |
| Start of mission | |
| Launch date | 7 February 1967, 03:21 GMT |
| Rocket | Soyuz 11A511 s/n U15000-03 |
| Launch site | Baikonur, Site 1/5 |
| Contractor | Experimental Design Bureau (OKB-1) |
| End of mission | |
| Landing date | 9 February 1967 |
| Landing site | Aral Sea, Kazakhstan |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Low Earth orbit |
| Perigee altitude | 165.0 km |
| Apogee altitude | 218.0 km |
| Inclination | 51.7° |
| Period | 88.5 minutes |
Kosmos 140 (Russian: Космос 140 meaning Cosmos 140), Soyuz 7K-OK No.3, was an uncrewed flight of the Soyuz spacecraft. It was the third attempted test flight of the Soyuz 7K-OK model, after orbital (Kosmos 133) and launch (Soyuz 11A511) failures of the first two Soyuz spacecraft.