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John12343210
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Do geostationary satellites move with the Earth's orbit or do they not move at all?
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nohutchphd said:Are you asking for the difference between geosynchronous and geostationary satellites?
Geostationary satellites orbit the Earth once a day, remaining stationary in a rotating reference frame centered on Earth. Clearly they must also follow the Earth through its orbit around the sun, as all satellites do.John12343210 said:Do geostationary satellites move with the Earth's orbit or do they not move at all?
John12343210 said:Do geostationary satellites move with the Earth's orbit or do they not move at all?
What your textbooks are probably saying is that they do not move (significantly) relative to any "fixed" point on the Earth's surface. It sounds as if they weren't saying it very well.John12343210 said:thanks guys, some of my textbooks were saying geostationary satellites don't move at all, so I was a bit confused
Movement depends on the used reference frame. Make sure that you read precisely what the book says.John12343210 said:...some of my textbooks were saying geostationary satellites don't move at all...
For instance for a (center of mass) observer of the solar system all Earth satellites actually travel "open" spiral serpentine paths about the Earth's orbit!A.T. said:Movement depends on the used reference frame. Make sure that you read precisely what the book says.
John12343210 said:thanks guys, some of my textbooks were saying geostationary satellites don't move at all, so I was a bit confused
Let me be pedantic and amend your comment to, "If they didn't, Satellite TV and other comms would be much more difficult to implement continously through them".davenn said:They do oscillate a little north and south of a fixed point on the Earth's surface
Other than that, they rotate with the Earth. If they didn't, Satellite TV and other comms wouldn't be possible through them
Impossibly difficult as you wouldn't be able to use the fixed dishes that are currently used, you would be chasing the sat's all over the sky with signals coming and going as you tried to watch your fav movie or sports channel etcOphiolite said:"If they didn't, Satellite TV and other comms would be much more difficult to implement continously through them".
Surely, so expensive as to be impractical, would be the more accurate description? Or, if you prefer, the equivalent, but more potent, practically impossible.davenn said:Impossibly difficult as you wouldn't be able to use the fixed dishes that are currently used, you would be chasing the sat's all over the sky with signals coming and going as you tried to watch your fav movie or sports channel etc
A geostationary satellite is a type of satellite that orbits the Earth at the same rate and direction as the Earth's rotation. This means that the satellite appears to stay in the same position in the sky, making it ideal for telecommunications and weather monitoring.
Geostationary satellites orbit at an altitude of approximately 35,786 kilometers (22,236 miles) above the Earth's equator.
It takes a geostationary satellite approximately 24 hours to complete one orbit around the Earth, which is the same amount of time it takes for the Earth to complete one rotation.
Geostationary satellites offer many benefits, including constant coverage over a specific area, making them useful for telecommunications and weather monitoring. They also have a longer lifespan compared to other types of satellites, reducing the need for frequent replacements.
Geostationary satellites are typically launched into orbit using rockets, such as the Ariane 5 or Falcon 9. These rockets carry the satellite into space and then use a series of burns to place the satellite into its precise geostationary orbit.