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The Epic Interactive Encyclopedia 1997
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1992-09-03
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or geosynchronous orbit, The circular path
35,900 km/22,300 mi above the Earth's
equator on which a satellite takes 24 hours,
moving from west to east, to complete an
orbit, thus appearing to hang stationary
over one place on the Earth's surface.
Geostationary orbits are used for weather
satellites and broadcasting and
communications satellites. They were first
thought of by the author Arthur C Clarke.