Kosmos 656

Kosmos 656 (Russian: Космос 656 meaning Cosmos 656) was an unmanned test of the Soyuz 7K-T, a variant of the Soyuz spacecraft. This Soyuz variant was intended for flights to the Almaz military space stations.^[1]

Kosmos 656

Soyuz 7K-T
Mission type	Orbital test flight
Operator	Soviet space program
COSPAR ID	1974-036A
SATCAT no.	7313
Mission duration	2 days, 30 minutes
Spacecraft properties
Spacecraft	Soyuz 7K-T s/n 69
Spacecraft type	Soyuz 7K-T/A9
Manufacturer	NPO Energia
Launch mass	6,675 kg (14,716 lb)
Start of mission
Launch date	27 May 1974, 07:20 (1974-05-27UTC07:20Z) UTC
Rocket	Soyuz 11A511
Launch site	Baikonur 1/5[1]
End of mission
Landing date	29 May 1974, 07:50 (1974-05-29UTC07:51Z) UTC
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Perigee altitude	195 km (121 mi)
Apogee altitude	364 km (226 mi)
Inclination	51.6 degrees
Period	90.0 minutes
Soyuz programme ← Kosmos 638 Soyuz 14 → Kosmos (satellites) ← Kosmos 655 Kosmos 657 →

Mission parameters

• Mass: 6,675 kg (14,716 lb)
• Perigee: 195 km (121 mi)
• Apogee: 364 km (226 mi)
• Inclination: 51.6°
• Period: 90.0 minutes