Kosmos 772 (russian: Космос 772 meaning ''Cosmos 772'') was an
uncrewed military
Soyuz 7K-S test. It was an unsuccessful mission as only one
transmitter
In electronics and telecommunications, a radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna (radio), antenna. The transmitter itself generates a radio frequency alternating current, which i ...
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
The Soyuz-T (russian: Союз-T, ''Union-T'') spacecraft was the third generation Soyuz spacecraft, in service for seven years from 1979 to 1986. The ''T'' stood for transport (, ). The revised spacecraft incorporated lessons learned from the ...
.
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. For example, the apsides of the Earth are called the aphelion and perihelion.
General description
There are two apsides in any ellip ...
: 154 km
*
Apogee
An apsis (; ) is the farthest or nearest point in the orbit of a planetary body about its primary body. For example, the apsides of the Earth are called the aphelion and perihelion.
General description
There are two apsides in any ellip ...
: 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
*
Soyuz 7K-OK
Soyuz 7K-OK was the first generation of Soyuz (spacecraft), Soyuz spacecraft and was flown between 1967 and 1971. The 7K-OK was used for the first ferry flights to the Salyut programme, Salyut space station program, beginning a long history ...
*
Soyuz TM-25
Soyuz TM-25 was a crewed Soyuz spaceflight, which launched on February 10, 1997.The mission report is available here: http://www.spacefacts.de/mission/english/soyuz-TM-25.htm It transported Russian cosmonauts Vasily Tsibliyev, Aleksandr Lazutkin, ...
*
Cosmos 670
Kosmos 670 (russian: Космос 670 meaning ''Cosmos 670'') was an unmanned Soyuz 7K-S test. It used a new and unique inclination of 50.6 degree. The experience from these flights were used in the development of the successor program Soyuz spac ...
*
Cosmos 869
Kosmos 869 (russian: Космос 869 meaning ''Cosmos 869'') was an uncrewed military Soyuz 7K-S test. It was a somewhat successful mission. This was the third and final test flight of a new Soyuz spacecraft type 7K-S. It was designed to be a spa ...
References
Kosmos 0772
Kosmos 0772
Kosmos 0772
1975 in the Soviet Union
Spacecraft launched in 1975
{{USSR-spacecraft-stub