Kosmos 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.^[1] The experience from these flights were used in the development of the successor program Soyuz spacecraft the Soyuz 7K-ST.^{[2][3][4][5][6][7]}

Kosmos 670

Mission type	Orbital test flight
Operator	Soviet space program
COSPAR ID	1974-061A
SATCAT no.	7405
Mission duration	2 days, 23 hours and 57 minutes
Spacecraft properties
Spacecraft type	Soyuz 7K-S s/n 1L
Manufacturer	NPO Energia
Launch mass	6,700 kg (14,800 lb)
Start of mission
Launch date	6 August 1974, 00:02 (1974-08-06UTC00:02Z) GMT
Rocket	Soyuz-U
Launch site	Baikonur 1/5
End of mission
Disposal	Deorbited
Landing date	8 August 1974, 23:59 (1974-08-09UTC00:00Z) GMT
Orbital parameters
Reference system	Geocentric
Perigee altitude	211 km (131 mi)
Apogee altitude	294 km (183 mi)
Inclination	50.6°
Period	89.5 min
Soyuz programme ← Soyuz 14 Kosmos 672 → Kosmos (satellites) ← Kosmos 669 Kosmos 671 →

Mission parameters

• Spacecraft: 7K-S
• Mass: 6700 kg
• Crew: None
• Launched: August 6, 1974
• Landed: August 8, 1974 23:59 UTC.
• Perigee: 221 km
• Apogee: 294 km
• Inclination: 50.6 deg
• Duration: 2.99 days

See also

• Kosmos 772
• Kosmos 869