CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0305
COSMOS 397 DEB
COSMOS 397 DEB (NORAD 15777) re-entered Earth’s atmosphere on 31 July 1991.
Official dateFragment record
NORAD number
15777
International designator
1971-015CX
Object type
Fragment
Country
USSR
Parent launched
25 Feb 1971Baikonur Cosmodrome
Re-entered (UTC)
31 Jul 1991UTC calendar day
Time since launch
20 years, 5 months7,461 days
How it ended
Re-entered (natural decay)
Latitude range
65.6°N to 65.6°SFinal inclination 65.6°
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 65.6°, allowed a re-entry anywhere between 65.6°N and 65.6°S.
Life in orbit
COSMOS 397 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 31 Jul 1991
2 entriesFrom the same launch
1971-015
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0305
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0305
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.