CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0553
SL-12 PLAT
SL-12 PLAT (NORAD 12929) re-entered Earth’s atmosphere on 31 October 1981.
Official dateFragment record
NORAD number
12929
International designator
1981-106C
Object type
Fragment
Country
USSR
Parent launched
30 Oct 1981Baikonur Cosmodrome
Re-entered (UTC)
31 Oct 1981UTC calendar day
Time since launch
1 day1 days
How it ended
Re-entered (natural decay)
Latitude range
51.5°N to 51.5°SFinal inclination 51.5°
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 51.5°, allowed a re-entry anywhere between 51.5°N and 51.5°S.
Life in orbit
Also ended on 31 Oct 1981
4 entriesFrom the same launch
1981-106Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0553
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0553
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.