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Soyuz 20
(Salyut 4 - Unmanned)
Launch:
Date: 17 November 1975
Time: 14:37 UTC
Landing:
Date: 16 February 1976
Time: 03:24 UTC
Duration: 90 days, 12 hours, 47 minutes
This was a test of the Progress automatic transport system. It docked with the Salyut 4 station. Noticeable degradation of systems on board Soyuz 20 led to an orbital limitation on the Soyuz craft to about 90 days.
Page last modified: 20 June 2022 16:59:09.