CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1977-0303
COSMOS 927
COSMOS 927 (NORAD 10139) landed on 25 July 1977, after 13 days in orbit.
Official date
NORAD number
10139
International designator
1977-063A
Object type
Spacecraft
Country
USSR
Launched
12 Jul 1977Plesetsk Cosmodrome
Landed (UTC)
25 Jul 1977UTC calendar day
Time in orbit
13 days13 days
How it ended
Landed
Latitude range
72.9°N to 72.9°SFinal inclination 72.9°
Mass
2,400 kg
Operator
GUKOS RVSN
Built by
TsSKB
Bus
Zenit-4MK
Programme
Zenit-4MKM
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 72.9°, allowed a re-entry anywhere between 72.9°N and 72.9°S.
Life in orbit
13 daysFrom the same launch
1977-063Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1977-0303
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1977-0303
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.