Soyuz 40

Soyuz 40
Soyuz 40 is launched from the Baikonur Cosmodrome on 14 May 1981.
OperatorSoviet space program
COSPAR ID1981-042A Edit this at Wikidata
SATCAT no.12454
Mission duration7 days, 20 hours and 41 minutes
Orbits completed124
Spacecraft properties
Spacecraft typeSoyuz 7K-T
ManufacturerNPO Energia
Launch mass6,800 kilograms (15,000 lb)
Crew
Crew size2
MembersLeonid Popov
Dumitru Prunariu
CallsignDnieper
Start of mission
Launch date14 May 1981, 17:16:38 (1981-05-14UTC17:16:38Z) UTC
RocketSoyuz-U
Launch siteBaikonur 1/5
End of mission
Landing date22 May 1981, 13:58:30 (1981-05-22UTC13:58:31Z) UTC
Landing site225 km SE of Dzhezkazgan
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude198.1 kilometres (123.1 mi)
Apogee altitude287 kilometres (178 mi)
Inclination51.6 degrees
Period89.6 minutes
Docking with Salyut 6
Docking date15 May 1981, 18:50 (1981-05-15UTC18:50Z) UTC
Undocking date22 May 1981, 10:37 (1981-05-22UTC10:38Z) UTC
Time docked6 days, 15 hours and 47 minutes

L-R: Popov and Prunariu

The Soyuz 40 mission was a 1981 Soviet crewed spaceflight and the final flight of the Soyuz 7K-T spacecraft. It was a collaboration between the Soviet Union and Romania.[1]

  1. ^ Cite error: The named reference spacefacts was invoked but never defined (see the help page).