Glossary Definition for: Satellite

Satellites in orbit above the earth are invaluable for long- distance communications.
Some satellites are geosynchronous, which means they sit directly over a fixed point on the equator and are always in the exact same position in the sky. But because they are so far away, precise aiming with a dish-style antenna is essential.

Others satellites are deployed in “constellations” with multiple satellites in a lower orbit working together, with the goal being that at least one satellite in the constellation is always in view.

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Because low earth orbit satellites are much closer and are in constant motion, aiming at them is not practical nor needed.

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