CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1986-0236
COSMOS 1739
COSMOS 1739 (NORAD 16677) landed on 7 June 1986, after 1 month in orbit.
Official date
NORAD number
16677
International designator
1986-028A
Object type
Spacecraft
Country
USSR
Launched
9 Apr 1986Baikonur Cosmodrome
Landed (UTC)
7 Jun 1986UTC calendar day
Time in orbit
1 month59 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'-4K2
Programme
Kobal't
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
1 monthCOSMOS 1739’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 7 Jun 1986
3 entriesFrom the same launch
1986-028Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1986-0236
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1986-0236
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.