CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1987-0467
COSMOS 1866 DEB
COSMOS 1866 DEB (NORAD 18309) re-entered Earth’s atmosphere on 16 October 1987.
Official dateFragment record
NORAD number
18309
International designator
1987-059J
Object type
Fragment
Country
USSR
Parent launched
9 Jul 1987Plesetsk Cosmodrome
Re-entered (UTC)
16 Oct 1987UTC calendar day
Time since launch
3 months99 days
How it ended
Re-entered (natural decay)
Latitude range
67.0°N to 67.0°SFinal inclination 67.0°
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 67.0°, allowed a re-entry anywhere between 67.0°N and 67.0°S.
Life in orbit
COSMOS 1866 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1987-059
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1987-0467
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1987-0467
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.