CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1974-0311
COSMOS 686 DEB
COSMOS 686 DEB (NORAD 7451) re-entered Earth’s atmosphere on 13 November 1974.
Official dateFragment record
NORAD number
7451
International designator
1974-074E
Object type
Fragment
Country
USSR
Parent launched
26 Sep 1974Plesetsk Cosmodrome
Re-entered (UTC)
13 Nov 1974UTC calendar day
Time since launch
1 month48 days
How it ended
Re-entered (natural decay)
Latitude range
71.2°N to 71.2°SFinal inclination 71.2°
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 71.2°, allowed a re-entry anywhere between 71.2°N and 71.2°S.
Life in orbit
COSMOS 686 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 13 Nov 1974
1 entryFrom the same launch
1974-074
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1974-0311
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1974-0311
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.