CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0237
DELTA 1 DEB
DELTA 1 DEB (NORAD 7159) re-entered Earth’s atmosphere on 13 May 1981.
Official dateFragment record
NORAD number
7159
International designator
1973-086DX
Object type
Fragment
Country
United States
Parent launched
6 Nov 1973Vandenberg
Re-entered (UTC)
13 May 1981UTC calendar day
Time since launch
7 years, 6 months2,745 days
How it ended
Re-entered (natural decay)
Latitude range
77.6°N to 77.6°SFinal inclination 102.4°
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 102.4°, allowed a re-entry anywhere between 77.6°N and 77.6°S.
Life in orbit
DELTA 1 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 13 May 1981
1 entry
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0237
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0237
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.