Full Motion Antenna motors designing problem

Dear All

I want to design a Full motion Antenna. But I want to start from the scratch.

Suppose I have a 1m parabolic Antenna and I want to install two motors (Elevation and Azimuth)

The motors should be DC. And I want to know how to calculate all the parameters required to move the antenna. For example how much power it would require, how much torque, how many output volts.

Lets say the Antenna would be used as a VSAT installed on a vehicle.
Kindly help me in getting started.
Thanks and Best regards