CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1986-0179
COSMOS 1734
COSMOS 1734 (NORAD 16618) landed on 26 April 1986, after 2 months in orbit.
Official date
NORAD number
16618
International designator
1986-020A
Object type
Spacecraft
Country
USSR
Launched
26 Feb 1986Plesetsk Cosmodrome
Landed (UTC)
26 Apr 1986UTC calendar day
Time in orbit
2 months59 days
How it ended
Landed
Latitude range
67.1°N to 67.1°SFinal inclination 67.1°
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 67.1°, allowed a re-entry anywhere between 67.1°N and 67.1°S.
Life in orbit
2 monthsCOSMOS 1734’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 26 Apr 1986
2 entriesFrom the same launch
1986-020
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1986-0179
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1986-0179
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.