CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0422
SL-6 DEB
SL-6 DEB (NORAD 21718) re-entered Earth’s atmosphere on 26 September 1991.
Official dateFragment record
NORAD number
21718
International designator
1991-065F
Object type
Fragment
Country
USSR
Parent launched
17 Sep 1991Plesetsk Cosmodrome
Re-entered (UTC)
26 Sep 1991UTC calendar dayAlso recorded as 27 Sep 1991
Time since launch
9 days9 days
How it ended
Re-entered (natural decay)
Latitude range
62.8°N to 62.8°SFinal inclination 62.8°
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 62.8°, allowed a re-entry anywhere between 62.8°N and 62.8°S.
Life in orbit
Also ended on 26 Sep 1991
3 entriesFrom the same launch
1991-065Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0422
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0422
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.