Kosmos 772 ( meaning ''Cosmos 772'') was an
uncrewed
An uncrewed vehicle or unmanned vehicle is a vehicle without a person on board. Uncrewed vehicles can either be under telerobotic control—remote controlled or remote guided vehicles—or they can be autonomously controlled—autonomous vehicl ...
military
Soyuz
Soyuz is a transliteration of the Cyrillic text Союз (Russian language, Russian and Ukrainian language, Ukrainian, 'Union'). It can refer to any union, such as a trade union (''profsoyuz'') or the Soviet Union, Union of Soviet Socialist Republi ...
7K-S test. It was an unsuccessful mission as only one
transmitter
In electronics and telecommunications, a radio transmitter or just transmitter (often abbreviated as XMTR or TX in technical documents) is an electronic device which produces radio waves with an antenna (radio), antenna with the purpose of sig ...
worked. Only the 166 MHz frequency transmitter operated, all of the other normal Soyuz wavelengths transmitters failed. The experience from these flights were used in the development of the successor program Soyuz spacecraft the
Soyuz 7K-ST.
Mission parameters
*Spacecraft: Soyuz 7K-S
*Mass: 6750 kg
*Crew: None
*Launched: September 29, 1975
*Landed: October 3, 1975 4:10 UTC
*
Perigee
An apsis (; ) is the farthest or nearest point in the orbit of a planetary body about its primary body. The line of apsides (also called apse line, or major axis of the orbit) is the line connecting the two extreme values.
Apsides perta ...
: 154 km
*
Apogee
An apsis (; ) is the farthest or nearest point in the orbit of a planetary body about its primary body. The line of apsides (also called apse line, or major axis of the orbit) is the line connecting the two extreme values.
Apsides perta ...
: 245 km
*Inclination: 51.8 deg
*Duration: 3.99 days
Maneuver Summary
*193 km X 270 km orbit to 195 km X 300 km orbit. Delta V: 8 m/s.
*196 km X 300 km orbit to 196 km X 328 km orbit. Delta V: 8 m/s.
Total Delta V: 16 m/s.
See also
*
Cosmos 670
*
Cosmos 869
References
Kosmos 0772
Kosmos 0772
Kosmos 0772
1975 in the Soviet Union
Spacecraft launched in 1975
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