By Rod Hill on 2011-09-24
All information courtesy of Jim Todd:
The latest information shows UARS will pass over Portland at 9:17 pm tonight, moving from WSW to NE with maximum altitude of 60 degrees NNW. The brightness will be about -1.2 magnitude which will be fairly easy to see. It will appear as a bright 'star' lasting for about 3 minutes. The time is subject to change by Heavens Above and NASA. Still no firm prediction when UARS will fall.
Jim Todd
OMSI Planetarium Manager
NASA:
As of 7 p.m. EDT on Sept. 23, 2011, the orbit of UARS was 90 miles by 95 miles (145 km by 150 km). Re-entry is expected between 11 p.m. Friday, Sept. 23, and 3 a.m., Sept. 24, Eastern Daylight Time (3 a.m. to 7 a.m. GMT). During that time period, the satellite will be passing over Canada, Africa and Australia, as well as vast areas of the Pacific, Atlantic and Indian oceans. The risk to public safety is very remote.
More darkness than daylight coming soon.