Page 12 - Curriculum Visions Dynamic Book
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A satellite in geosynchronous orbit.
Geosynchronous orbiting
The farther a satellite is from the Earth’s surface, the greater the distance it will have to travel to make a complete circuit of the Earth. As a result, satellites in orbit using no engines travel more slowly relative to the Earth the farther they are from it.
At an altitude of 200 kilometres an object orbits the Earth in about 90 minutes. At higher altitudes it takes longer to orbit the Earth. At 35,786 kilometres altitude and a velocity of 11,300 kilometres per hour the object takes 24 hours to orbit the Earth. At this altitude an object moves around exactly in pace with the rotAtion of the Earth; it appears to be stationary in the sky and is said to be in a geosyncHronous orbit.
This is a particularly important altitude for communications and meteorological (weather) satellites.
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