CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1974-0262
COSMOS 633
COSMOS 633 (NORAD 7187) re-entered Earth’s atmosphere on 4 October 1974, after 7 months in orbit.
Official date
NORAD number
7187
International designator
1974-010A
Object type
Spacecraft
Country
USSR
Launched
27 Feb 1974Plesetsk Cosmodrome
Re-entered (UTC)
4 Oct 1974UTC calendar day
Time in orbit
7 months219 days
How it ended
Re-entered (natural decay)
Latitude range
71.0°N to 71.0°SFinal inclination 71.0°
Mass
200 kg
Operator
PVO
Built by
Southern SDB
Bus
DS-P1
Programme
DS-P1-Yu A
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 71.0°, allowed a re-entry anywhere between 71.0°N and 71.0°S.
Life in orbit
7 monthsCOSMOS 633’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 4 Oct 1974
1 entryFrom the same launch
1974-010
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1974-0262
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1974-0262
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.