CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1971-0189
SL-4 DEB
SL-4 DEB (NORAD 5381) re-entered Earth’s atmosphere on 8 August 1971.
Official dateFragment record
NORAD number
5381
International designator
1971-066C
Object type
Fragment
Country
USSR
Parent launched
5 Aug 1971Baikonur Cosmodrome
Re-entered (UTC)
8 Aug 1971UTC calendar day
Time since launch
3 days3 days
How it ended
Re-entered (natural decay)
Latitude range
51.7°N to 51.7°SFinal inclination 51.7°
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 51.7°, allowed a re-entry anywhere between 51.7°N and 51.7°S.
Life in orbit
Also ended on 8 Aug 1971
1 entryFrom the same launch
1971-066
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1971-0189
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1971-0189
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.