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Rocket Launch (1 Viewer)

Khan.Paki

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Can anyone please guide me with this question;

Analyse the factors that rocket scientists must take into consideration when launching a satellite into a geostationary orbit. [7M]

Thanks
 

rand_althor

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Things they would have to consider:
  • Achieving the correct altitude and orbital velocity required for a geostationary orbit
  • Ensuring the satellite is placed above the equator
  • Ensuring the rocket is launched from east to west so that it orbits in the same direction as Earth
  • Make sure the rocket has enough fuel to orbit
 

Khan.Paki

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Can you please explain why correct altitude and orbital velocity is required?
 

rand_althor

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There is a specific radius required for a geostationary orbit. You can find this using Kepler's 3rd Law , by letting T equal 24 hours (convert to seconds). There is also a specific velocity required to attain this specific radius. You can calculate this using the formula for orbital velocity . As astroman said, given they are moving at the correct velocity and have the correct orbital period, the satellite will be seen as stationary relative to observers on Earth.
 
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