CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0434
THOR ABLESTAR DEB
THOR ABLESTAR DEB (NORAD 129) re-entered Earth’s atmosphere on 31 August 1981.
Official dateFragment record
NORAD number
129
International designator
1961-015P
Object type
Fragment
Country
United States
Parent launched
29 Jun 1961Cape Canaveral
Re-entered (UTC)
31 Aug 1981UTC calendar day
Time since launch
20 years, 2 months7,368 days
How it ended
Re-entered (natural decay)
Latitude range
66.5°N to 66.5°SFinal inclination 66.5°
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 66.5°, allowed a re-entry anywhere between 66.5°N and 66.5°S.
Life in orbit
THOR ABLESTAR DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 31 Aug 1981
5 entries
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0434
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0434
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.