Soyuz 31
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Soyuz 31 (Russian: Союз 31, Union 31) was a 1978 Soviet crewed space flight to the Salyut 6 space station.[2] It was the seventh mission to and sixth successful docking at the orbiting facility. The Soyuz 31 crew were the second to visit the long-duration Soyuz 29 resident crew.
Quick Facts COSPAR ID, SATCAT no. ...
COSPAR ID | 1978-081A |
---|---|
SATCAT no. | 11010 |
Mission duration | 67 days, 20 hours, 12 minutes, 47 seconds |
Orbits completed | 124 |
Spacecraft properties | |
Spacecraft type | Soyuz 7K-T |
Manufacturer | NPO Energia |
Launch mass | 6,800 kilograms (15,000 lb) |
Crew | |
Crew size | 2 |
Launching | Valery Bykovsky Sigmund Jähn |
Landing | Vladimir Kovalyonok Aleksandr Ivanchenkov |
Callsign | Ястреб (Yastreb - "Hawk") |
Start of mission | |
Launch date | 26 August 1978, 14:51:30 (1978-08-26UTC14:51:30Z) UTC |
Rocket | Soyuz-U |
Launch site | Baikonur 1/5[1] |
End of mission | |
Landing date | 2 November 1978, 11:04:17 (1978-11-02UTC11:04:18Z) UTC |
Landing site | 140 kilometres (87 mi) SE of Dzhezkazgan |
Orbital parameters | |
Reference system | Geocentric |
Regime | Low Earth |
Perigee altitude | 196.8 kilometres (122.3 mi) |
Apogee altitude | 259.9 kilometres (161.5 mi) |
Inclination | 51.64 degrees |
Period | 88.81 minutes |
Docking with Salyut 6 | |
Docking port | Aft port |
Docking date | 28 August 1978, 16:37:37 UTC[2] |
Undocking date | 07 September 1978, 16:37:37 UTC[3] |
Time docked | 10d |
Redocking with Salyut 6 | |
Redocking port | Front port |
Redocking date | 07 September 1978, 16:37:37 UTC[3] |
Unredocking date | 02 November 1978, 11:04:17 UTC[2] |
Time redocked | 55d 18h 26m |
Close
Soyuz 31 carried Valery Bykovsky and Sigmund Jähn, the first German cosmonaut, into space. They swapped Soyuz craft with the long-duration crew and returned to Earth in Soyuz 29, the resident crew returned to Earth in Soyuz 31.