CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1977-0025
COSMOS 777 DEB
COSMOS 777 DEB (NORAD 8636) re-entered Earth’s atmosphere on 20 January 1977.
Official dateFragment record
NORAD number
8636
International designator
1975-102S
Object type
Fragment
Country
USSR
Parent launched
29 Oct 1975Baikonur Cosmodrome
Re-entered (UTC)
20 Jan 1977UTC calendar day
Time since launch
1 year, 2 months449 days
How it ended
Re-entered (natural decay)
Latitude range
65.1°N to 65.1°SFinal inclination 65.1°
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 65.1°, allowed a re-entry anywhere between 65.1°N and 65.1°S.
Life in orbit
COSMOS 777 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 20 Jan 1977
46 entriesFrom the same launch
1975-102
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1977-0025
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1977-0025
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.