CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0407
DMSP 5D-2 F10 DEB
DMSP 5D-2 F10 DEB (NORAD 20991) re-entered Earth’s atmosphere on 20 September 1991.
Official dateFragment record
NORAD number
20991
International designator
1990-105J
Object type
Fragment
Country
United States
Parent launched
1 Dec 1990Vandenberg
Re-entered (UTC)
20 Sep 1991UTC calendar day
Time since launch
9 months293 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
DMSP 5D-2 F10 DEB’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 20 Sep 1991
2 entries
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0407
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0407
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.