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Soyuz 15
Mission statistics
Mission name Soyuz 15
Spacecraft mass 6,760 kg (14,900 lb)
Crew size 2
Call sign Дунай (Dunay - "Danube")
Launch pad Gagarin's Start[1]
Launch date August 26 1974 19:58:05 (1974-08-26T19:58:05) UTC
Landing August 28 1974 20:10:16 (1974-08-28T20:10:17) UTC
48 km (30 mi) SW of Tselinograd
Mission duration 2 days, 0 h, 12 min, 11 s
Number of orbits 32
Apogee 236 km (147 mi)
Perigee 173 km (107 mi)
Orbital period 88.5 min
Orbital inclination 51.6°
Related missions
Previous mission Next mission
Soyuz 14 Soyuz 16Apollo-Soyuz.pngSoyuz 16

Soyuz 15 (Russian: Союз 15, Union 15) was a 1974 manned space flight which was to have been the second mission to the Soviet Union's Salyut 3 space station with presumably military objectives.[2]

Launched 26 August 1974, the Soyuz spacecraft arrived at the station, but cosmonauts Lev Demin and Gennadi Sarafanov were unable to dock because of a fault in the automated docking system. Without sufficient fuel for prolonged attempts at manual docking, the mission had to be abandoned.[3] The crew landed 28 August. Analysis of the launch window was cited by observers for concluding a flight of 19 to 29 days had been planned.[3]

It was later claimed by Soviet authorities that no docking had been intended and that the flight had been undertaken merely to develop techniques for maneuvering near the space station.[2] They also said that a new automatic docking system was tested which would be used on future Progress transport craft.[3]



Position Cosmonaut
Commander Gennadi Sarafanov
First spaceflight
Flight Engineer Lev Demin
First spaceflight

Backup crew

Position Cosmonaut
Commander Boris Volynov
Flight Engineer Vitaliy Zholobov

Reserve crew

Position Cosmonaut
Commander Vyacheslav Zudov
Flight Engineer Valeri Rozhdestvensky

Mission parameters

  • Mass: 6,760 kg (14,900 lb)
  • Perigee: 173 km (107 mi)
  • Apogee: 236 km (147 mi)
  • Inclination: 51.6°
  • Period: 88.5 min


  1. ^ "Baikonur LC1". Encyclopedia Astronautica. Retrieved 2009-03-04.  
  2. ^ a b Clark, Phillip (1988). The Soviet Manned Space Program. New York: Orion Books, a division of Crown Publishers, Inc.. ISBN 0-517-56954-X.  
  3. ^ a b c Newkirk, Dennis (1990). Almanac of Soviet Manned Space Flight. Houston, Texas: Gulf Publishing Company. ISBN 0-87201-848-2.  


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