CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1990-0057
THORAD AGENA D DEB
THORAD AGENA D DEB (NORAD 4170) re-entered Earth’s atmosphere on 23 January 1990.
Official dateFragment record
NORAD number
4170
International designator
1969-082AN
Object type
Fragment
Country
United States
Parent launched
30 Sep 1969Vandenberg
Re-entered (UTC)
23 Jan 1990UTC calendar day
Time since launch
20 years, 3 months7,420 days
How it ended
Re-entered (natural decay)
Latitude range
70.1°N to 70.1°SFinal inclination 70.1°
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 70.1°, allowed a re-entry anywhere between 70.1°N and 70.1°S.
Life in orbit
THORAD AGENA D DEB’s lowest and highest points above Earth, week by week, from its tracking history.
From 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/1990-0057
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1990-0057
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.