CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1989-0699
COSMOS 851
COSMOS 851 (NORAD 9389) re-entered Earth’s atmosphere on 5 August 1989, after 12 years, 11 months in orbit.
Official date
NORAD number
9389
International designator
1976-085A
Object type
Spacecraft
Country
USSR
Launched
27 Aug 1976Plesetsk Cosmodrome
Re-entered (UTC)
5 Aug 1989UTC calendar day
Time in orbit
12 years, 11 months4,726 days
How it ended
Re-entered (natural decay)
Latitude range
81.1°N to 81.1°SFinal inclination 81.1°
Mass
1,750 kg
Operator
GRU
Built by
Southern SDB
Bus
Tselina-D
Programme
Tselina-D
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 81.1°, allowed a re-entry anywhere between 81.1°N and 81.1°S.
Life in orbit
12 years, 11 monthsCOSMOS 851’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 5 Aug 1989
4 entriesFrom the same launch
1976-085
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1989-0699
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1989-0699
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.