Salyut 4

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Salyut 4
Salyut 4 and Soyuz drawing.svg
Drawing of the space station
Mission data
Begin: December 26, 1974, 04:19 UTC , Baikonur
Re-entry : February 2, 1977, 22:00 UTC
NSSDC ID: 1974-104A
Crews: 2
Manned in orbit: 92 days
Total in orbit: 769 days, 17 hours
Earth orbits: 12187
Apogee: 219 km
Perigee: 168 km
Rotation time: 89.1 min
Orbit inclination: 51.6 °
Total mass: 18,500 kg
Salyut program insignia.svg

Salyut 4 ( Russian Салют-4 "Salut") was a Soviet space station that was launched on December 26, 1974 by a Proton-K rocket into orbit. It burned up on February 2, 1977 when it re- entered the earth's atmosphere. During its operating time, it was manned by two crews: first by Alexei Gubarew and Georgi Grechko with the spaceship Soyuz 17 , then by Pyotr Klimuk and Vitaly Sevastyanov with Soyuz 18 . Another visit took place with the unmanned spacecraft Soyuz 20 .

Technical specifications

  • Length: 15.8 m
  • Diameter: max. 4.15 m
  • Habitable space: 90 m³
  • Mass at departure: 18,900 kg
  • Surface of the solar cells: 60 m²
  • Number of solar cells: 3
  • Electrical power: 4 kW
  • Number of coupling adapters : 1

Research apparatus

A total of around 2 t of research equipment was on board, including:

  • the 25 cm solar telescope OST-1 ( Russian ОСТ-1 ) (a development of the Crimean observatory )
  • the reflection spectrometer KDS-3 ( Russian КДС-3 )
  • the notation for light atomic nuclei SILJA-4 ( Russian СИЛЯ-4 ),
  • the solar spectrometer KSS-2 ( Russian КСС-4 )
  • the infrared telescope ITS-P ( Russian ИТЫ-П )
  • the detection device for meteor fabric MMK-1 Russian ММК-1 and neutral particles "Ryabina" ( Russian Рябина "rowan")
  • the mass spectrometer "Spektr" ( Russian Спектр "Spectrum"),
  • the temperature sensor for the outer atmosphere of the earth "Emissija" ( Russian Эмиссия "Emission")
  • the Earth observation devices KATE-140 ( Russian КАТЭ-140 "Emission", KATE-500 ( Russian КАТЭ-500 ), BA-SK ( Russian БА-ЗК ))
  • the telephotometer "micron" ( Russian Микрон "micron"),
  • other devices for medical and technological experiments

See also

Web links

Individual evidence

  1. a b c Alexander Anikeev: Orbital station "Salyut-4". February 17, 2012, archived from the original on March 4, 2016 ; accessed on June 5, 2014 .
  2. Robert Christy: Salyut 4. Retrieved June 5, 2014 (English).
  3. Salyut 4 in the NSSDCA Master Catalog , accessed on August 2, 2010.
  4. SAO / NASA ADS (ed.): The design of the Salyut-4 orbiting solar telescope . bibcode : 1979IzKry..59 ... 31B .
  5. SAO / NASA ADS (ed.): The ultraviolet spectrograph of the Salyut-4 orbiting solar telescope . bibcode : 1979IzKry..59 ... 57B .