launched by Russia

Soyuz 20

Success
NOV 17197514:36:00 UTC

Unmanned long-duration test of Soyuz spacecraft.

Docked with Salyut 4.

launched from Pad 1/5 Baikonur

aboard Soyuz U into LEO

Spacecraft

Soyuz 7K-T/A9 Soyuz 20

At the station

docked at Salyut 4

returned to Earth Feb 16, 1976

last updated Oct 25, 2026