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Given that a satellite signal travels at the speed of light exactly how long does it take for a signal to go from the Earth to a satellite in geosynchronous orbit and back to Earth Show the calculat?
Wiki User
∙ 13y ago
The speed of light is equal to approximately 186,000 miles per second. Geosynchronous-Earth-orbit satellites are found 22,300 miles from Earth and are always positioned over the same point on Earth.
The signal has to go to the satellite which is 22,300 miles up, and then back to Earth which is 22,300 miles back. So the total distance traveled is 44,600 miles.
To get the amount of time it takes simply do 44,600/186,000 = approximately .23978 seconds. Or you could say 239.78 milliseconds.
Hope this helps.
JB
Wiki User
∙ 13y ago
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Given that a satellite signal travels at the speed of light exactly how long does it take for a signal to go from the Earth to a satellite in geosynchronous orbit and back to Earth?
The exact distance, and therefore the exact time required for that trip,depends on the locations of the transmitting and receiving points on Earth.there's also a bit of 'latency' added on account of the time it takes for thesignal to be processed within the guts of the satellite.In order to match the satellite's orbital period to the rotation of the Earth, itmust be placed in an orbit 26,199 miles from the Earth's center, or 22,240 milesabove the surface. Then, if the satellite's orbit is also placed over the equator,the satellite will appear stationary in the sky.If the ground station is directly under the satellite, and receives its own signal,then the delay up to the bird and back is 0.239 second (rounded) PLUS anysignal conversion latency.
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