CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1988-0551
COSMOS 839 DEB
COSMOS 839 DEB (NORAD 18673) re-entered Earth’s atmosphere on 10 September 1988.
Official dateFragment record
NORAD number
18673
International designator
1976-067BQ
Object type
Fragment
Country
USSR
Parent launched
8 Jul 1976Plesetsk Cosmodrome
Re-entered (UTC)
10 Sep 1988UTC calendar day
Time since launch
12 years, 2 months4,447 days
How it ended
Re-entered (natural decay)
Latitude range
64.5°N to 64.5°SFinal inclination 64.5°
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 64.5°, allowed a re-entry anywhere between 64.5°N and 64.5°S.
Life in orbit
COSMOS 839 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 10 Sep 1988
1 entry
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1988-0551
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1988-0551
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.