SOLAR SYSTEM

Detailed explanation-1: -The term geostationary comes from the fact that such a satellite appears nearly stationary in the sky as seen by a ground-based observer. BGAN, the new global mobile communications network, uses geostationary satellites.

Detailed explanation-2: -A geostationary satellite is in an orbit that can only be achieved at an altitude very close to 35, 786 km (22, 236 miles) and which keeps the satellite fixed over one longitude at the equator. The satellite appears motionless at a fixed position in the sky to ground observers.

Detailed explanation-3: -Most of the communication satellites are placed in the geosynchronous orbit. Description: When a geosynchronous satellite is placed directly above the Equator with a circular orbit and angular velocity identical to that of the Earth, the satellite is known as a geostationary satellite.

Detailed explanation-4: -Syncom 3 was the first geostationary satellite. (The earlier geosynchronous Syncom 2 had an orbit inclined to the equator.) It was an experimental geosynchronous communications satellite placed over the equator at 180 degrees longitude in the Pacific Ocean.