CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1977-0516

THORAD AGENA D DEB

THORAD AGENA D DEB (NORAD 4520) re-entered Earth’s atmosphere on 20 December 1977.

Official dateFragment record
NORAD number
4520
International designator
1969-082FX
Object type
Fragment
Country
United States
Parent launched
30 Sep 1969Vandenberg
Re-entered (UTC)
20 Dec 1977UTC calendar day
Time since launch
8 years, 2 months3,003 days
How it ended
Re-entered (natural decay)
Latitude range
70.3°N to 70.3°SFinal inclination 70.3°

Where it came down

Latitude band its orbit allowed
Exact position not recorded

No position was recorded for this re-entry. Its final orbit, inclined at 70.3°, allowed a re-entry anywhere between 70.3°N and 70.3°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 20 Dec 1977

2 entries
1977-0517COSMOS 964 DEB1977-0518COSMOS 964 DEB

From the same launch

1969-082
1970-0243OPS 18072023-0310SOICAL (CYLINDER)

Part of a fragment group

207 on record
207One of 207 fragments of Thorad Agena D on record →
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Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1977-0516
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