CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2011-0275
UARS
UARS (NORAD 21701) re-entered Earth’s atmosphere after release from its host on 24 September 2011, after 20 years in orbit.
Official date
NORAD number
21701
International designator
1991-063B
Object type
Spacecraft
Country
United States
Launched
12 Sep 1991Cape Canaveral
Re-entered (UTC)
24 Sep 2011UTC calendar day
Time in orbit
20 years7,317 days
How it ended
Re-entered after release from its host
Latitude range
56.9°N to 56.9°SFinal inclination 56.9°
Mass
6,526 kg
Operator
GSFC
Built by
GE/MSVD / Fairchild
Bus
MMS
Programme
UARS
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 56.9°, allowed a re-entry anywhere between 56.9°N and 56.9°S.
Life in orbit
20 yearsUARS’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 24 Sep 2011
3 entriesFrom the same launch
1991-063
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2011-0275
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2011-0275
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.