Q841586

Salyut 4 was a Salyut space station launched on December 26, 1974 into an orbit with an apogee of 355 km, a perigee of 343 km and an orbital inclination of 51.6 degrees. It was essentially a copy of the DOS 3, and unlike its ill-fated sibling it was a complete success. Three crews attempted to make stays aboard Salyut 4. The second stay was for 63 days duration, and an uncrewed capsule, called Soyuz 20, remained docked to the station for three months, proving the system's long-term durability despite some deterioration of the environmental system during Soyuz 18's mission. Salyut 4 was deorbited February 2, 1977, and re-entered the Earth's atmosphere on February 3.

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1974  Wikimedia, Wikidata
space laboratory, space station, Proton-K, 

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Location: KML, Cluster Map, Maps,

1974-12-26T00:00:00Z

1974-12-26T00:00:00Z

1974 Salyut 4

1974-12-26T00:00:00Z

1974-12-26T00:00:00Z

rocket launch

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Frameless

Salyut 4 paper model

Type	Subtype	Date	Description	Notes	Source
commons	image		Salyut 4 paper model		Commons