What are the factors affecting geostationary satellite orbits?

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SUMMARY

Geostationary satellites maintain a fixed position relative to the Earth's surface by orbiting at an altitude of approximately 35,786 kilometers above the equator, resulting in a 24-hour orbital period. The discussion confirms that statements (d) and (e) are correct: geostationary satellites cannot view the north and south poles due to their equatorial orbit, and their mass does not affect the orbital mechanics as it cancels out in the gravitational and centripetal force equations. Understanding these principles is essential for comprehending satellite positioning and functionality.

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songoku
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Homework Statement


Which of the following statements about geostationary satellite is correct?
a. geostationary satellites must orbit from east to west
b. the orbital radius of a geostationary satellite can be varied as long as its period is 24 hours
c. it is a constellation of at least two satellites
d. any geostationary satellites are not able to view the north and south poles
e. the mass of a geostationary satellite does not have to be fixed.

Homework Equations


gravitational force
centripetal force

The Attempt at a Solution


I think the answer is (d). Geostationary satellite is located on equator so it can't view the poles. But I am not sure about (e). From equation gravitational force = centripetal force, the mass of satellite will cancel out so the orbit is independent of the mass of satellite, so maybe (e) is the correct one?

Thanks
 
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Both (d) and (e) are correct. You can have more than one correct statements.
 
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Thanks for your help
 
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