Low Earth orbit

communication satellite system that orbits the Earth at a low altitude (mainly used for cellular telephone communications), LEO

A Low Earth Orbit (LEO) is generally defined as an orbit within the locus extending from the Earth’s surface up to an altitude of 2,000 km. Given the rapid orbital decay of objects below approximately 200 km, the commonly accepted definition for LEO is between 200 - 2000 km (124 - 1240 miles) above the Earth's surface.
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<communications> (LEO) The kind of orbit used by communications satellites that will offer high bandwidth for video on demand, television, and Internet communications. A satellite in LEO, in contrast to one in a geostationary orbit, is not in a fixed position relative to the Earth's surface so several satellites are required to provide continuous service.
[Ovum report, "Applications for the superhighway", John Moroney].
(1996-02-06)