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Kosmos 772

Mission type	Orbital test flight
Operator	Soviet space program
COSPAR ID	1975-093A
SATCAT no.	8338
Mission duration	3 days, 23 hours and 55 minutes
Spacecraft properties
Spacecraft type	Soyuz 7K-S s/n 2L
Manufacturer	NPO Energia
Launch mass	6,750 kg (14,880 lb)
Start of mission
Launch date	29 September 1975, 04:15 (1975-09-29UTC04:15Z) GMT
Rocket	Soyuz-U
Launch site	Baikonur 1/5
End of mission
Disposal	Deorbited
Landing date	3 October 1975, 04:10 (1975-10-03UTC04:11Z) GMT
Orbital parameters
Reference system	Geocentric
Perigee altitude	154 km (96 mi)
Apogee altitude	245 km (152 mi)
Inclination	51.8°
Period	88.4 min
Soyuz programme← Soyuz 19Soyuz 20 → Kosmos (satellites)← Kosmos 771Kosmos 773 →

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 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: 154 km
• Apogee: 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

1. astronautix.com, Soyuz 7K-S
2. Soviet Space Programs, 1976-80: Manned space programs and space life sciences
3. "friends-partners.org soyuz7ks". Archived from the original on 2008-07-24. Retrieved 2006-02-03.
4. astronautix.com soyuz7k-s
5. "A brief history of space accidents". Jane's Transport Business News. February 3, 2003. Archived from the original on 2003-02-04. Retrieved 2007-10-20.
6. "Astronauts escape malfunctioning rocket". BBC News. 2018-10-11. Retrieved 2018-10-11.
7. Sanchez, Merri J. (March 2000). "A Human Factors Evaluation of a Methodology for Pressurized Crew Module Acceptability for Zero-Gravity Ingress of Spacecraft" (PDF). Houston, Texas: Lyndon B. Johnson Space Center. p. 8. Archived from the original (PDF) on 2006-10-05. Retrieved 2007-10-20.
8. Evans, Ben (September 28, 2013). "'We Were Swearing!' Thirty Years Since Russia's Brush With Disaster". Retrieved 2014-01-24.

v t e Soyuz programme
List of Soyuz missions List of Soviet human spaceflight missions List of Russian human spaceflight missions
Main topics	Soyuz (rocket family) Soyuz (spacecraft) Baikonur Cosmodrome Site 1/5 Site 31/6 Soyuz abort modes Cosmonaut ranks and positions
Past missions (by spacecraft type)	Soyuz 7K-OK (1966–1970) Kosmos 133† Soyuz 7K-OK No.1† (uncrewed) Kosmos 140 Soyuz 1† Kosmos 186 188 212 213 238 Soyuz 2 (uncrewed) 3 4 5 6 7 8 9 Soyuz 7K-L1 (1967–1970) (Zond lunar programme) Kosmos 146 154† Zond 1967A† 1967B† Zond 4 1968A† 1968B† 5 6 1969A† Zond-M 1† M 2† Zond 7 8 9 10 Soyuz 7K-L1E (1969–1970) Soyuz 7K-L1E No.1† Kosmos 382 Soyuz 7K-LOK (1971–1972) Soyuz 7K-LOK No.1† No.2† Soyuz 7K-OKS (1971) Soyuz 10† 11† Soyuz 7K-T (1972–1981) Kosmos 496 573 Soyuz 12 Kosmos 613 Soyuz 13 Kosmos 656 Soyuz 14 15† 17 18a† 18 20 (uncrewed) 21 23† 24 25† 26 27 28 29 30 31 32 (uncrewed landing) 33† 34 (uncrewed launch) 35 36 37 38 39 40 Soyuz 7K-TM (1974–1976) Kosmos 638 672 Soyuz 16 19 (Apollo–Soyuz) 22 Soyuz 7K-S (1974–1976) Kosmos 670 772† 869† Soyuz-T (1978–1986) Kosmos 1001† 1074 Soyuz T-1 (uncrewed) T-2 T-3 T-4 T-5 T-6 T-7 T-8† T-9 T-10a† T-10 T-11 T-12 T-13 T-14 T-15 Soyuz-TM (1986–2002) Soyuz TM-1 (uncrewed) TM-2 TM-3 TM-4 TM-5 TM-6 TM-7 TM-8 TM-9 TM-10 TM-11 TM-12 TM-13 TM-14 TM-15 TM-16 TM-17 TM-18 TM-19 TM-20 TM-21 TM-22 TM-23 TM-24 TM-25 TM-26 TM-27 TM-28 TM-29 TM-30 TM-31 TM-32 TM-33 TM-34 Soyuz-TMA (2002–2012) Soyuz TMA-1 TMA-2 TMA-3 TMA-4 TMA-5 TMA-6 TMA-7 TMA-8 TMA-9 TMA-10 TMA-11 TMA-12 TMA-13 TMA-14 TMA-15 TMA-16 TMA-17 TMA-18 TMA-19 TMA-20 TMA-21 TMA-22 Soyuz-TMA-M (2010–2016) Soyuz TMA-01M TMA-02M TMA-03M TMA-04M TMA-05M TMA-06M TMA-07M TMA-08M TMA-09M TMA-10M TMA-11M TMA-12M TMA-13M TMA-14M TMA-15M TMA-16M TMA-17M TMA-18M TMA-19M TMA-20M Soyuz MS (2016–present) Soyuz MS-01 MS-02 MS-03 MS-04 MS-05 MS-06 MS-07 MS-08 MS-09 MS-10† MS-11 MS-12 MS-13 MS-14 (uncrewed) MS-15 MS-16 MS-17 MS-18 MS-19 MS-20 MS-21 MS-22 (uncrewed landing) MS-23 (uncrewed launch) MS-24 MS-25
Current missions	MS-26
Future missions	2025 MS-27 MS-28 2026 MS-29
Uncrewed missions are designated as Kosmos instead of Soyuz; exceptions are noted "(uncrewed)". The † sign designates failed missions. Italics designates cancelled missions.

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