CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0497
DELTA 1 DEB
DELTA 1 DEB (NORAD 12289) re-entered Earth’s atmosphere on 10 November 1991.
Official dateFragment record
NORAD number
12289
International designator
1978-026EH
Object type
Fragment
Country
United States
Parent launched
5 Mar 1978Vandenberg
Re-entered (UTC)
10 Nov 1991UTC calendar day
Time since launch
13 years, 8 months4,998 days
How it ended
Re-entered (natural decay)
Latitude range
81.3°N to 81.3°SFinal inclination 98.7°
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 98.7°, allowed a re-entry anywhere between 81.3°N and 81.3°S.
Life in orbit
DELTA 1 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 10 Nov 1991
2 entries
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0497
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0497
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.