CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1978-0162

COSMOS 999

COSMOS 999 (NORAD 10773) landed on 12 April 1978, after 13 days in orbit.

Official date
NORAD number
10773
International designator
1978-033A
Object type
Spacecraft
Country
USSR
Launched
30 Mar 1978Baikonur Cosmodrome
Landed (UTC)
12 Apr 1978UTC calendar day
Time in orbit
13 days13 days
How it ended
Landed
Latitude range
71.4°N to 71.4°SFinal inclination 71.4°
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 71.4°, allowed a re-entry anywhere between 71.4°N and 71.4°S.

Life in orbit

13 days

From the same launch

1978-033
1978-0148SL-4 R/B
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Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1978-0162
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