Soyuz T-4
1981 Soviet crewed spaceflight to Salyut 6 / From Wikipedia, the free encyclopedia
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Soyuz T-4 was a Soviet space mission which launched the crew of Salyut 6 EO-6, the sixth and final long-duration crew of the Salyut 6 space station. It was launched on 12 March 1981 and docked with the station the next day.[1] During their stay, the EO-6 crew was visited by Soyuz 39 and Soyuz 40. Soyuz T-4 returned to Earth on 26 May 1981; its crew were the last to have inhabited Salyut 6.[2]
Quick Facts COSPAR ID, SATCAT no. ...
COSPAR ID | 1981-023A |
---|---|
SATCAT no. | 12334 |
Mission duration | 74 days, 17 hours, 37 minutes, 23 seconds |
Orbits completed | 1,178 |
Spacecraft properties | |
Spacecraft type | Soyuz-T |
Manufacturer | NPO Energia |
Launch mass | 6,850 kilograms (15,100 lb) |
Crew | |
Crew size | 2 |
Members | Vladimir Kovalyonok Viktor Savinykh |
Callsign | Photon |
Start of mission | |
Launch date | 12 March 1981, 19:00:11 (1981-03-12UTC19:00:11Z) UTC |
Rocket | Soyuz-U |
Launch site | Baikonur 1/5 |
End of mission | |
Landing date | 26 May 1981, 12:37:34 (1981-05-26UTC12:37:35Z) UTC |
Landing site | 125 kilometres (78 mi) E Dzhezkazgan |
Orbital parameters | |
Reference system | Geocentric |
Regime | Low Earth |
Perigee altitude | 201 kilometres (125 mi) |
Apogee altitude | 250 kilometres (160 mi) |
Inclination | 51.6 degrees |
Period | 88.7 minutes |
Docking with Salyut 6 | |
Docking date | 13 March 1981, 20:33 (1981-03-13UTC20:33Z) UTC[1] |
Undocking date | 26 May 1981, 09:20 (1981-05-26UTC09:21Z) UTC[1] |
Soyuz programme (Crewed missions) |
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