I guess it finally broke up and reentered the atmosphere sometime after 10:30 PM 23 September 2011 local time Seattle Washington. The last I saw it on the graphic display was that it was approaching or very close to Australia. After that I can't get the graphic display and the status is listed as 'Decayed.'
http://www.n2yo.com/satellite/?s=21701
REAL TIME SATELLITE TRACKING
NORAD ID: 21701
Int'l Code: 1991-063B
Perigee: 152.1 km
Apogee: 157.1 km
Inclination: 56.9°
Period: 87.4 min
Semi major axis: 6,525.6 km
Launch date: September 12, 1991
Source: United States (US)
Decay date: 2011-09-24
Comments: The Upper Atmosphere Research Satellite (UARS)
