CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1977-0216
COSMOS 850
COSMOS 850 (NORAD 9387) re-entered Earth’s atmosphere on 16 May 1977, after 8 months in orbit.
Official date
NORAD number
9387
International designator
1976-084A
Object type
Spacecraft
Country
USSR
Launched
26 Aug 1976Plesetsk Cosmodrome
Re-entered (UTC)
16 May 1977UTC calendar day
Time in orbit
8 months263 days
How it ended
Re-entered (natural decay)
Latitude range
70.9°N to 70.9°SFinal inclination 70.9°
Mass
193 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 70.9°, allowed a re-entry anywhere between 70.9°N and 70.9°S.
Life in orbit
8 monthsCOSMOS 850’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 16 May 1977
1 entryFrom the same launch
1976-084
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1977-0216
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1977-0216
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.