CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1979-0413
DELTA 1 DEB
DELTA 1 DEB (NORAD 8975) re-entered Earth’s atmosphere on 4 September 1979.
Official dateFragment record
NORAD number
8975
International designator
1975-004BH
Object type
Fragment
Country
United States
Parent launched
22 Jan 1975Vandenberg
Re-entered (UTC)
4 Sep 1979UTC calendar dayAlso recorded as 6 Sep 1979
Time since launch
4 years, 7 months1,686 days
How it ended
Re-entered (natural decay)
Latitude range
82.4°N to 82.4°SFinal inclination 97.6°
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 97.6°, allowed a re-entry anywhere between 82.4°N and 82.4°S.
Life in orbit
DELTA 1 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 4 Sep 1979
1 entryPart of a fragment group
175 on record
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1979-0413
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1979-0413
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.