CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1979-0466
COSMOS 900
COSMOS 900 (NORAD 9898) re-entered Earth’s atmosphere on 11 October 1979, after 2 years, 6 months in orbit.
Official date
NORAD number
9898
International designator
1977-023A
Object type
Spacecraft
Country
USSR
Launched
29 Mar 1977Plesetsk Cosmodrome
Re-entered (UTC)
11 Oct 1979UTC calendar day
Time in orbit
2 years, 6 months926 days
How it ended
Re-entered (natural decay)
Latitude range
82.9°N to 82.9°SFinal inclination 82.9°
Mass
1,056 kg
Operator
MOM / IK
Built by
Southern SDB
Bus
AUOS
Programme
AUOS
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 82.9°, allowed a re-entry anywhere between 82.9°N and 82.9°S.
Life in orbit
2 years, 6 monthsCOSMOS 900’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 11 Oct 1979
2 entriesFrom the same launch
1977-023
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1979-0466
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1979-0466
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.