Salyut 4
Sign in to saveSalyut space station launched on December 26, 1974
Key facts
- Cospar id
- 1974-104A
- Satcat number span no
- 07591
- Call sign
- Salyut 4
- Launch
- December 26, 1974 , 04:15:00 UTC
- Launch pad
- LC-81/24 , Baikonur Cosmodrome , Soviet Union
- Reentry
- February 3, 1977
- Mass
- 18,210 kilograms (40,150 lb) (fuelled mass) 16,210 kilograms (35,740 lb)
- Length
- 15.8 m
- Width
- 4.15 m
- Pressurised volume
- 90 m
- Periapsis altitude
- 136 mi (219 km)
- Apoapsis altitude
- 168 mi (270 km)
- Orbital inclination
- 51.6 degrees
- Orbital period
- 89.1 minutes
- Days in orbit
- 770 days
- Days occupied
- 92 days
- Number span no of orbits
- 12,444
- Distance travelled
- ~313,651,190 mi, (~504,772,660 km)
via Wikipedia infobox
Wikidata facts
- Diameter
- 4.15
- Mass
- 18500
- Image
- RP1357 p71 Salyut 4.svg
- Length
- 15.8
Show 11 more facts
- Commons category
- Salyut 4
- native label
- Салют-4
- UTC date of spacecraft launch
- 1974-12-26
- orbits completed
- 12444
- orbital inclination
- 51.6
- apoapsis
- 355
- periapsis
- 343
- volume as quantity
- 90
- maximum capacity
- 2
- orbital eccentricity
- 0.00385
- time of object orbit decay
- 1977-02-02
via Wikidata · CC0
~6 min read
Article
Salyut 4 (DOS 4) (Russian: Салют-4, lit. 'Salute 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 (or Kosmos 557), and, unlike its ill-fated sibling, it was a complete success. Three crews attempted to make stays aboard Salyut 4 (Soyuz 17 and Soyuz 18 docked; Soyuz 18a suffered a launch abort). 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.
Description