Rocket Launch (1 Viewer)

[Khan.Paki]

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]

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]

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

 

[astroman]

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

so they can stay above same spot on earth

 

[rand_althor]

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.