CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1985-0312
COSMOS 1673
COSMOS 1673 (NORAD 15942) landed on 19 September 1985, after 1 month in orbit.
Official date
NORAD number
15942
International designator
1985-068A
Object type
Spacecraft
Country
USSR
Launched
8 Aug 1985Baikonur Cosmodrome
Landed (UTC)
19 Sep 1985UTC calendar day
Time in orbit
1 month42 days
How it ended
Landed
Latitude range
64.8°N to 64.8°SFinal inclination 64.8°
Mass
2,720 kg
Operator
TsSKB
Built by
TsSKB
Bus
Yantar'-1KFT
Programme
Siluet
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 64.8°, allowed a re-entry anywhere between 64.8°N and 64.8°S.
Life in orbit
1 monthCOSMOS 1673’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 19 Sep 1985
3 entriesFrom the same launch
1985-068
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1985-0312
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1985-0312
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.