CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1978-0073
COSMOS 988
COSMOS 988 (NORAD 10666) landed on 20 February 1978, after 12 days in orbit.
Official date
NORAD number
10666
International designator
1978-015A
Object type
Spacecraft
Country
USSR
Launched
8 Feb 1978Plesetsk Cosmodrome
Landed (UTC)
20 Feb 1978UTC calendar day
Time in orbit
12 days12 days
How it ended
Landed
Latitude range
72.8°N to 72.8°SFinal inclination 72.8°
Mass
2,200 kg
Operator
VTS SA
Built by
TsSKB
Bus
Zenit-4MT
Programme
Orion
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 72.8°, allowed a re-entry anywhere between 72.8°N and 72.8°S.
Life in orbit
12 daysAlso ended on 20 Feb 1978
2 entriesFrom the same launch
1978-015
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1978-0073
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1978-0073
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.