CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1974-0089
COSMOS 636
COSMOS 636 (NORAD 7225) landed on 3 April 1974, after 14 days in orbit.
Official date
NORAD number
7225
International designator
1974-016A
Object type
Spacecraft
Country
USSR
Launched
20 Mar 1974Baikonur Cosmodrome
Landed (UTC)
3 Apr 1974UTC calendar day
Time in orbit
14 days14 days
How it ended
Landed
Latitude range
65.0°N to 65.0°SFinal inclination 65.0°
Mass
2,310 kg
Operator
GUKOS RVSN
Built by
TsSKB
Bus
Zenit-4MK
Programme
Zenit-4MK
Where it came down
Latitude band its orbit allowedExact position not recorded
No position was recorded for this re-entry. Its final orbit, inclined at 65.0°, allowed a re-entry anywhere between 65.0°N and 65.0°S.
Life in orbit
14 daysAlso ended on 3 Apr 1974
1 entryFrom the same launch
1974-016Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1974-0089
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1974-0089
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.