Kosmos 638
Appearance
![]() Soyuz 7K-TM | |
SATCAT no. | 7234 |
---|---|
Mission duration | 9 days, 21 hours and 35 minutes |
Spacecraft properties | |
Spacecraft | Soyuz 7K-TM s/n 71 |
Manufacturer | NPO Energia |
Launch mass | 6,570 kg (14,480 lb) |
Start of mission | |
Launch date | 3 April 1974, 07:30 | GMT
Rocket | Soyuz-U |
Launch site | Baikonur 31/6 |
End of mission | |
Disposal | Deorbited |
Landing date | 13 April 1974, 05:05 | GMT
Orbital parameters | |
Reference system | Geocentric |
Perigee altitude | 187 km (116 mi) |
Apogee altitude | 309 km (192 mi) |
Inclination | 51.8° |
Period | 89.4 min |
Kosmos 638 (Russian: Космос 638) was an uncrewed test of the 1975 Apollo–Soyuz Test Project Soyuz. It carried an APAS-75 androgynous docking system.
This was followed by another uncrewed test of this spacecraft type, Kosmos 672.[1] It was a Soyuz 7K-TM spacecraft.[1]
When the air was released from the orbital module (which is ejected before re-entry of the capsule) it caused unexpected motions with the spacecraft.[1] This led to the next test also being uncrewed.[1]
Mission parameters
[edit]- Spacecraft: Soyuz-7K-TM №71
- Mass: 6510 to 6680 kg
- Crew: None
- Launched: April 3, 1974
- Landed: April 13, 1974
See also
[edit]References
[edit]- Mir Hardware Heritage
- ^ a b c d Rex Hall; David Shayler (2003). Soyuz: A Universal Spacecraft. Springer Science & Business Media. p. 211. ISBN 978-1-85233-657-8.