CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1978-0062

COSMOS 987

COSMOS 987 (NORAD 10639) landed on 14 February 1978, after 14 days in orbit.

Official date
NORAD number
10639
International designator
1978-013A
Object type
Spacecraft
Country
USSR
Launched
31 Jan 1978Plesetsk Cosmodrome
Landed (UTC)
14 Feb 1978UTC calendar day
Time in orbit
14 days14 days
How it ended
Landed
Latitude range
62.8°N to 62.8°SFinal inclination 62.8°
Mass
2,400 kg
Operator
GUKOS RVSN
Built by
TsSKB
Bus
Zenit-4MK
Programme
Zenit-4MKM

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 62.8°, allowed a re-entry anywhere between 62.8°N and 62.8°S.

Life in orbit

14 days

From the same launch

1978-013
1978-0051SL-4 R/B
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Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1978-0062
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