CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0016
THORAD AGENA D DEB
THORAD AGENA D DEB (NORAD 4188) re-entered Earth’s atmosphere on 11 January 1981.
Official dateFragment record
NORAD number
4188
International designator
1969-082BB
Object type
Fragment
Country
United States
Parent launched
30 Sep 1969Vandenberg
Re-entered (UTC)
11 Jan 1981UTC calendar dayAlso recorded as 24 Dec 1980
Time since launch
11 years, 3 months4,121 days
How it ended
Re-entered (natural decay)
Latitude range
70.0°N to 70.0°SFinal inclination 70.0°
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 70.0°, allowed a re-entry anywhere between 70.0°N and 70.0°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 11 Jan 1981
1 entryFrom the same launch
1969-082Part of a fragment group
207 on record
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0016
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0016
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.