CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1989-1028
DELTA 1 DEB
DELTA 1 DEB (NORAD 12259) re-entered Earth’s atmosphere on 15 December 1989.
Official dateFragment record
NORAD number
12259
International designator
1978-026DC
Object type
Fragment
Country
United States
Parent launched
5 Mar 1978Vandenberg
Re-entered (UTC)
15 Dec 1989UTC calendar dayAlso recorded as 15 Mar 1989
Time since launch
11 years, 9 months4,303 days
How it ended
Re-entered (natural decay)
Latitude range
81.1°N to 81.1°SFinal inclination 98.9°
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 98.9°, allowed a re-entry anywhere between 81.1°N and 81.1°S.
Life in orbit
DELTA 1 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 15 Dec 1989
2 entries
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1989-1028
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1989-1028
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.