0255 GMT (10:55 p.m. EDT Fri.)
The latest numbers show UARS flying in an orbit of 85 miles by 90 miles (135 km by 140 km). NASA officially predicts re-entry will happen sometime between 11:45 p.m. and 12:45 a.m. EDT (0345-0445 GMT). The satellite's orbital flight path will be crossing the Pacific, North America, the Atlantic, Africa and Indian Ocean during the upcoming hour-long re-entry window.