CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1984-0186
DELTA 1 DEB
DELTA 1 DEB (NORAD 12240) re-entered Earth’s atmosphere on 16 April 1984.
Official dateFragment record
NORAD number
12240
International designator
1978-026CH
Object type
Fragment
Country
United States
Parent launched
5 Mar 1978Vandenberg
Re-entered (UTC)
16 Apr 1984UTC calendar day
Time since launch
6 years, 1 month2,234 days
How it ended
Re-entered (natural decay)
Latitude range
81.0°N to 81.0°SFinal inclination 99.0°
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 99.0°, allowed a re-entry anywhere between 81.0°N and 81.0°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/1984-0186
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1984-0186
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.