CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0107
INTERCOSMOS 18
INTERCOSMOS 18 (NORAD 11082) re-entered Earth’s atmosphere on 17 March 1981, after 2 years, 4 months in orbit.
Official date
NORAD number
11082
International designator
1978-099A
Object type
Spacecraft
Country
USSR
Launched
24 Oct 1978Plesetsk Cosmodrome
Re-entered (UTC)
17 Mar 1981UTC calendar day
Time in orbit
2 years, 4 months875 days
How it ended
Re-entered (natural decay)
Latitude range
82.9°N to 82.9°SFinal inclination 82.9°
Mass
990 kg
Operator
IK
Built by
Southern SDB
Bus
AUOS
Programme
AUOS
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 82.9°, allowed a re-entry anywhere between 82.9°N and 82.9°S.
Life in orbit
2 years, 4 monthsINTERCOSMOS 18’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1978-099
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0107
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0107
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.