CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Orbital Register seal
Entry no.
1991-0532

COSMOS 2163

COSMOS 2163 (NORAD 21741) re-entered Earth’s atmosphere on 7 December 1991, after 1 month in orbit.

Official date
NORAD number
21741
International designator
1991-071A
Object type
Spacecraft
Country
USSR
Launched
9 Oct 1991Baikonur Cosmodrome
Re-entered (UTC)
7 Dec 1991UTC calendar day
Time in orbit
1 month59 days
How it ended
Re-entered (natural decay)
Latitude range
64.8°N to 64.8°SFinal inclination 64.8°
Mass
3,590 kg
Operator
TsSKB
Built by
TsSKB
Bus
Orlets
Programme
Don

Where it came down

Latitude band its orbit allowed
Exact position not recorded

No position was recorded for this re-entry. Its final orbit, inclined at 64.8°, allowed a re-entry anywhere between 64.8°N and 64.8°S.

Life in orbit

1 month

COSMOS 2163’s lowest and highest points above Earth, week by week, from its tracking history.

Also ended on 7 Dec 1991

2 entries
1991-0531SL-6 R/B(2)1991-0530TITAN 3C TRANSTAGE DEB

From the same launch

1991-071
1991-0448SL-4 R/B
Orbital Register seal
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0532
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.