CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0449
DELTA 1 DEB
DELTA 1 DEB (NORAD 21679) re-entered Earth’s atmosphere on 13 October 1991.
Official dateFragment record
NORAD number
21679
International designator
1975-052JF
Object type
Fragment
Country
United States
Parent launched
12 Jun 1975Vandenberg
Re-entered (UTC)
13 Oct 1991UTC calendar dayAlso recorded as 19 Oct 1991
Time since launch
16 years, 4 months5,967 days
How it ended
Re-entered (natural decay)
Latitude range
80.8°N to 80.8°SFinal inclination 99.2°
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 99.2°, allowed a re-entry anywhere between 80.8°N and 80.8°S.
Life in orbit
DELTA 1 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0449
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0449
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.