Kosmos 936

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Kosmos 1514 / Bion 4
Bion 4 - Artificial Gravity Experiment.JPG
Artificial gravity experiment that was flown on Bion 4.
Mission typeBioscience
OperatorInstitute of Biomedical Problems
COSPAR ID1977-074A[1]
SATCAT no.10172
Mission duration19.5 days
Spacecraft properties
Spacecraft typeBion
Launch mass4,000 kg (8,800 lb)
Start of mission
Launch date3 August 1977, 14:01:00 (1977-08-03UTC14:01Z) UTC
RocketSoyuz 11A511U
Launch sitePlesetsk 43/3
End of mission
Landing date22 August 1977, 01:05 (1977-08-22UTC01:06) UTC
Landing site51°53′N 61°30′E / 51.883°N 61.500°E / 51.883; 61.500 (Bion 4 spashdown)
near Kustanay, Kazakh SSR, USSR[2]
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude215 kilometres (134 mi)
Apogee altitude384 kilometres (239 mi)
Period90.7 minutes
RAAN48.7403 degrees
Argument of perigee113.2218 degrees
Mean anomaly248.7005 degrees
Mean motion15.90956306
Epoch20 August 1977,
01:17:16 UTC
Revolution no.262

Kosmos 936 or Bion 4[3] (Бион 4, Космос 936) was a Bion satellite. The mission involved nine countries, including the United States, in a series of biomedical research experiments. The experiments were primarily follow-ups to the Bion 3 (Kosmos 782) flight. Scientists from the Bulgaria, Czechoslovakia, East Germany, France, Hungary, Poland, Romania, Soviet Union and the United States conducted experiments in physics and biology on the mission.

Kosmos 936 was launched on August 3, 1977, by a Soyuz rocket from Plesetsk Cosmodrome, Soviet Union. The mission ended after 19.5 days.

See also[edit]


  1. ^ "NASA - NSSDC - Spacecraft - Details". Nssdc.gsfc.nasa.gov. 16 August 2013. Retrieved 12 March 2014.
  2. ^ Bion Archived 2002-08-20 at the Wayback Machine. Encyclopedia Astronautica. Astronautix.com. Retrieved 28 May 2016.
  3. ^ "Cosmos 936". Lis.arc.nasa.gov. 3 August 1977. Archived from the original on 15 February 2013. Retrieved 12 March 2014.