CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1999-0426
THORAD AGENA D DEB
THORAD AGENA D DEB (NORAD 4981) re-entered Earth’s atmosphere on 23 December 1999.
Official dateFragment record
NORAD number
4981
International designator
1970-025HB
Object type
Fragment
Country
United States
Parent launched
8 Apr 1970Vandenberg
Re-entered (UTC)
23 Dec 1999UTC calendar day
Time since launch
29 years, 8 months10,851 days
How it ended
Re-entered (natural decay)
Latitude range
80.2°N to 80.2°SFinal inclination 99.8°
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 99.8°, allowed a re-entry anywhere between 80.2°N and 80.2°S.
Life in orbit
THORAD AGENA D DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 23 Dec 1999
1 entryPart of a fragment group
179 on record
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1999-0426
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1999-0426
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.