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Surveying FS

Category - Geodesy & Mapping

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At what height above the Earth’s surface do Global Positioning System satellites orbit?

6,360 km
20,200 km
26,560 km
42,300 km

Explanation

Answer: B - Global Positioning System satellites orbit at approximately 20,200 km above the Earth’s surface. The mean Earth radius is approximately 6,360 km and the mean distance of a GPS satellite’s orbit to the middle of the earth is 25,560 km. Geostationary satellites typically orbit the earth at approximately 42,300 km.

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