CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1990-0346
THORAD DELTA 1 DEB
THORAD DELTA 1 DEB (NORAD 20681) re-entered Earth’s atmosphere on 2 August 1990.
Official dateFragment record
NORAD number
20681
International designator
1974-089FF
Object type
Fragment
Country
United States
Parent launched
15 Nov 1974Vandenberg
Re-entered (UTC)
2 Aug 1990UTC calendar day
Time since launch
15 years, 8 months5,739 days
How it ended
Re-entered (natural decay)
Latitude range
77.9°N to 77.9°SFinal inclination 102.1°
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 102.1°, allowed a re-entry anywhere between 77.9°N and 77.9°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 2 Aug 1990
1 entry
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1990-0346
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1990-0346
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.