1.   He said many satellite users, like ships and cable television companies, have antennas that can track a satellite as it moves in the sky.

2.   John Locker, a British engineer who specializes in tracking commercial satellites, discovered the spy plane transmissions last November, the newspaper said.

3.   Sprawled across the prairie at the foot of Pikes Peak, Colorado Springs is home to four major military facilities, including a base that tracks military satellites.

4.   The falling satellite was being tracked by radar by the North American Aerospace Defense Command, the Air Force command known as NORAD that monitors space satellites.

5.   The falling satellite was tracked by radar by the North American Aerospace Defense Command, the Air Force command known as NORAD that monitors space satellites.

6.   Earth stations in India, Russia, Germany and Mauritius began tracking the satellite as it drifted in space seconds after delinking from the spent PSLV.

7.   Earth stations in India, Russia, Germany and Mauritius are simultaneously tracking the satellite, ISRO officials said.