CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0050
COSMOS 1686
COSMOS 1686 (NORAD 16095) came down with its space station on 7 February 1991, after 5 years, 4 months in orbit.
Official date
NORAD number
16095
International designator
1985-086A
Object type
Spacecraft
Country
USSR
Launched
27 Sep 1985Baikonur Cosmodrome
Re-entered (UTC)
7 Feb 1991UTC calendar day
Time in orbit
5 years, 4 months1,959 days
How it ended
Came down with its space station
Latitude range
51.6°N to 51.6°SFinal inclination 51.6°
Mass
19,000 kg
Operator
ZIKh
Built by
ZIKh
Bus
77KS
Programme
TKS
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 51.6°, allowed a re-entry anywhere between 51.6°N and 51.6°S.
Life in orbit
5 years, 4 monthsCOSMOS 1686’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 7 Feb 1991
2 entriesFrom the same launch
1985-086
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0050
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0050
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.