Soyuz 20
Soyuz 20 (Russian: Союз 20, Union 20) was an unmanned spacecraft launched by the Soviet Union. It was a long-duration test of the Soyuz spacecraft that docked with the Salyut 4 space station. Soyuz 20 performed comprehensive checking of improved on-board systems of the spacecraft under various flight conditions. It also carried a biological payload. Living organisms were exposed to three months in space.[2]
COSPAR ID | 1975-106A |
---|---|
SATCAT no. | 08430 |
Mission duration | 90 days, 11 hours, 52 minutes |
Orbits completed | 1470 |
Spacecraft properties | |
Spacecraft type | Soyuz 7K-T/A9 |
Manufacturer | NPO Energia |
Launch mass | 6,570 kilograms (14,480 lb) |
Start of mission | |
Launch date | November 17, 1975, 14:36:37 UTC |
Rocket | Soyuz-U |
Launch site | Baikonur 1/5[1] |
End of mission | |
Landing date | February 16, 1976, 02:29 UTC |
Landing site | 56 kilometres (35 mi) SW of Arkalyk |
Orbital parameters | |
Reference system | Geocentric |
Regime | Low Earth |
Perigee altitude | 177 kilometres (110 mi) |
Apogee altitude | 251 kilometres (156 mi) |
Inclination | 51.6 degrees |
Period | 89.1 minutes |
Docking with Salyut 4 | |
Soyuz programme (Manned missions) |
It was reentered on 16 February 1976.
Crew
None.
Mission parameters
- Mass: 6,570 kg (14,480 lb)
- Perigee: 177 km (110 mi)
- Apogee: 251 km (156 mi)
- Inclination: 51.6°
- Period: 89.1 minutes
gollark: Yes, but then everyone ends up needing to ship one and it's annoying.
gollark: Hey, we could make some sort of limited standard interface for these things.
gollark: Want to run two things at once? Sure! Want background tasks? Hahahahahano.
gollark: `parallel` isn't great. Priority is... unnecessary... but one thing it lacks is a function to run new processes in an existing parallel loop.
gollark: Well, sure/
References
- "Baikonur LC1". Encyclopedia Astronautica. Archived from the original on 2009-04-15. Retrieved 2009-03-04.
- LA Times, UNMANNED SOYUZ AND SALYUT DOCK, By Christopher S. Wren Special to The New York Times, Nov. 20, 1975
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