CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1971-0145
SL-4 DEB
SL-4 DEB (NORAD 5291) re-entered Earth’s atmosphere on 15 June 1971.
Official dateFragment record
NORAD number
5291
International designator
1971-055C
Object type
Fragment
Country
USSR
Parent launched
11 Jun 1971Plesetsk Cosmodrome
Re-entered (UTC)
15 Jun 1971UTC calendar day
Time since launch
4 days4 days
How it ended
Re-entered (natural decay)
Latitude range
72.6°N to 72.6°SFinal inclination 72.6°
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 72.6°, allowed a re-entry anywhere between 72.6°N and 72.6°S.
Life in orbit
Also ended on 15 Jun 1971
2 entriesFrom the same launch
1971-055
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1971-0145
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1971-0145
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.