CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1973-0388
COSMOS 577 DEB
COSMOS 577 DEB (NORAD 6770) re-entered Earth’s atmosphere on 7 August 1973.
Official dateFragment record
NORAD number
6770
International designator
1973-048C
Object type
Fragment
Country
USSR
Parent launched
25 Jul 1973Plesetsk Cosmodrome
Re-entered (UTC)
7 Aug 1973UTC calendar day
Time since launch
13 days13 days
How it ended
Re-entered (natural decay)
Latitude range
65.4°N to 65.4°SFinal inclination 65.4°
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 65.4°, allowed a re-entry anywhere between 65.4°N and 65.4°S.
Life in orbit
Also ended on 7 Aug 1973
4 entriesFrom the same launch
1973-048
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1973-0388
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1973-0388
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.