(Of an artificial satellite of the earth) moving in a geosynchronous orbit in the plane of the equator, so that it remains stationary in relation to a fixed point on the surface. This orbit is achieved at an altitude of 22,300 miles (35,900 km) above the earth. It is used by communication and meteorological satellites.
- Once in geostationary orbit above the equator this satellite will provide a wide range of high-speed telecommunications services for North America, South America, Europe, North Africa and the Middle East.
- Three special satellites located in geostationary orbit above Europe transmit a GPS-like signal that improves the GPS accuracy down to 1 to 2 metres.
- Egnos consists of three geostationary satellites and a network of ground stations for the transmission of a signal containing information on the reliability and accuracy of the positioning.
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