CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1973-0073
COSMOS 551 DEB
COSMOS 551 DEB (NORAD 6389) re-entered Earth’s atmosphere on 22 March 1973.
Official dateFragment record
NORAD number
6389
International designator
1973-012D
Object type
Fragment
Country
USSR
Parent launched
6 Mar 1973Baikonur Cosmodrome
Re-entered (UTC)
22 Mar 1973UTC calendar day
Time since launch
16 days16 days
How it ended
Re-entered (natural decay)
Latitude range
65.0°N to 65.0°SFinal inclination 65.0°
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 65.0°, allowed a re-entry anywhere between 65.0°N and 65.0°S.
Life in orbit
Also ended on 22 Mar 1973
1 entryFrom the same launch
1973-012
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1973-0073
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1973-0073
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.