CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0064
COSMOS 1240
COSMOS 1240 (NORAD 12143) landed on 17 February 1981, after 28 days in orbit.
Official date
NORAD number
12143
International designator
1981-005A
Object type
Spacecraft
Country
USSR
Launched
20 Jan 1981Baikonur Cosmodrome
Landed (UTC)
17 Feb 1981UTC calendar day
Time in orbit
28 days28 days
How it ended
Landed
Latitude range
64.9°N to 64.9°SFinal inclination 64.9°
Mass
2,886 kg
Operator
GUKOS
Built by
TsSKB
Bus
Yantar'-2K
Programme
Feniks
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 64.9°, allowed a re-entry anywhere between 64.9°N and 64.9°S.
Life in orbit
28 daysCOSMOS 1240’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1981-005Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0064
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0064
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.