CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0585
THORAD DELTA 1 DEB
THORAD DELTA 1 DEB (NORAD 8909) re-entered Earth’s atmosphere on 15 November 1981.
Official dateFragment record
NORAD number
8909
International designator
1974-089DT
Object type
Fragment
Country
United States
Parent launched
15 Nov 1974Vandenberg
Re-entered (UTC)
15 Nov 1981UTC calendar day
Time since launch
7 years2,557 days
How it ended
Re-entered (natural decay)
Latitude range
78.5°N to 78.5°SFinal inclination 101.5°
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 101.5°, allowed a re-entry anywhere between 78.5°N and 78.5°S.
Life in orbit
THORAD DELTA 1 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 15 Nov 1981
1 entry
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0585
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0585
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.