CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1977-0141

COSMOS 818

COSMOS 818 (NORAD 8851) re-entered Earth’s atmosphere on 7 March 1977, after 9 months in orbit.

Official date
NORAD number
8851
International designator
1976-044A
Object type
Spacecraft
Country
USSR
Launched
18 May 1976Plesetsk Cosmodrome
Re-entered (UTC)
7 Mar 1977UTC calendar day
Time in orbit
9 months293 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 allowed
Exact 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

9 months

COSMOS 818’s lowest and highest points above Earth, week by week, from its tracking history.

Also ended on 7 Mar 1977

2 entries
1977-0139DELTA 1 R/B(2)1977-0140ATLAS AGENA D R/B

From the same launch

1976-044
1976-0556SL-7 R/B
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Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1977-0141
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