An artist's concept of falling UARS

NASA’s, Upper Atmosphere Research Satellite (UARS) fell back to Earth at 12:01 a.m. EDT (0401 GMT) on Saturday, Sept. 24, after 20 years of orbiting Earth. The satellite was designed to study the Earth’s ozone layer for three years after its 1991 launch, but it lasted through 2005, when NASA decommissioned it and set it on course for eventual disposal in Earth’s atmosphere. See a profile of the UARS satellite in the infographic above.

The location where it fell was a remote ocean area in the Southern Hemisphere, far from any major land mass. The debris field is located between 300 miles and 800 miles downrange, or generally northeast of the re-entry point. NASA is not aware of any possible debris sightings from this geographic area. Explained in following Infographic

Have a three dimensional view in this video:

Source: space.com