CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1983-0470

DELTA 1 DEB

DELTA 1 DEB (NORAD 8991) re-entered Earth’s atmosphere on 9 December 1983.

Official dateFragment record
NORAD number
8991
International designator
1975-004BZ
Object type
Fragment
Country
United States
Parent launched
22 Jan 1975Vandenberg
Re-entered (UTC)
9 Dec 1983UTC calendar day
Time since launch
8 years, 10 months3,243 days
How it ended
Re-entered (natural decay)
Latitude range
81.2°N to 81.2°SFinal inclination 98.8°

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 98.8°, allowed a re-entry anywhere between 81.2°N and 81.2°S.

Life in orbit

DELTA 1 DEB’s lowest and highest points above Earth, week by week, from its tracking history.

Also ended on 9 Dec 1983

4 entries
1983-0471COSMOS 1465 DEB1983-0472SL-4 DEB1983-0473SL-4 DEB1983-0474SL-4 DEB

Part of a fragment group

175 on record
175One of 175 fragments of Delta 1 on record →
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Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1983-0470
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