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- GEOSYNCHRONOUS ORBIT
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- A satellite orbit of 35,880 km above the equator. A satellite travelling along this orbit from west to east appears
- stationary to an observer on Earth. Geosynchronous orbits are used mainly by communications satellites.
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- Nearly all satellites transmitting television programs operate on geosynchronous orbits, acting as immensely tall relay
- stations. Some scientific satellites are also placed on geosynchronous orbits so that they can maintain a non-stop
- contact with just one ground station. One of these is the IUE. It studies stars, especially on infrared wavelengths.
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