I'm trying to find out the meaning of azimuth and elevation form the perspective of a geosynchronous satellite. So if I'm trying to direct a radio beam toward earth from a communication satellite and I'm given azimuth and elevation values from the perspective of the satellite what do they mean, exactly?
Edit: I'm not sure I can specify the details of the system I'm working on, as it's proprietary. But what I am trying to do (well model, it's not real world) is define a beam footprint on earth from a communication satellite. The software allows the user to define a beam using a number of parameters, but the ones that relate to the position of the centre of the (circular) beam are Azimuth and Elevation. I believe that these refer to the frame of reference of the satellite (or possibly the antenna for the particular beam on the satellite), but I'm not sure how. Since different satellites will be oriented differently, I can't understand how this will work. Maybe these terms have a standard meaning for satellite operators?