CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1997-0412
COSMOS 1172
COSMOS 1172 (NORAD 11758) re-entered Earth’s atmosphere on 26 December 1997, after 17 years, 8 months in orbit.
Official date
NORAD number
11758
International designator
1980-028A
Object type
Spacecraft
Country
USSR
Launched
12 Apr 1980Plesetsk Cosmodrome
Re-entered (UTC)
26 Dec 1997UTC calendar day
Time in orbit
17 years, 8 months6,467 days
How it ended
Re-entered (natural decay)
Latitude range
61.7°N to 61.7°SFinal inclination 61.7°
Mass
1,250 kg
Operator
PVO
Built by
Lavochkin / Kometa
Bus
Oko
Programme
Oko D
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 61.7°, allowed a re-entry anywhere between 61.7°N and 61.7°S.
Life in orbit
17 years, 8 monthsCOSMOS 1172’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1980-028
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1997-0412
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1997-0412
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.