CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1977-0345
COSMOS 777 DEB *
COSMOS 777 DEB * (NORAD 8631) re-entered Earth’s atmosphere on 21 August 1977.
Official dateFragment record
NORAD number
8631
International designator
1975-102M
Object type
Fragment
Country
USSR
Parent launched
29 Oct 1975Baikonur Cosmodrome
Re-entered (UTC)
21 Aug 1977UTC calendar day
Time since launch
1 year, 9 months662 days
How it ended
Re-entered (natural decay)
Latitude range
65.8°N to 65.8°SFinal inclination 65.8°
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 65.8°, allowed a re-entry anywhere between 65.8°N and 65.8°S.
Life in orbit
COSMOS 777 DEB *’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1975-102
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1977-0345
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1977-0345
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.