CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0027
DELTA 1 DEB
DELTA 1 DEB (NORAD 10633) re-entered Earth’s atmosphere on 21 January 1991.
Official dateFragment record
NORAD number
10633
International designator
1977-065FC
Object type
Fragment
Country
United States
Parent launched
14 Jul 1977Cape Canaveral
Re-entered (UTC)
21 Jan 1991UTC calendar dayAlso recorded as 3 Jan 1990
Time since launch
13 years, 6 months4,939 days
How it ended
Re-entered (natural decay)
Latitude range
28.8°N to 28.8°SFinal inclination 28.8°
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 28.8°, allowed a re-entry anywhere between 28.8°N and 28.8°S.
Life in orbit
DELTA 1 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 21 Jan 1991
4 entriesFrom the same launch
1977-065Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0027
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0027
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.