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Message: <blockquote data-quote="Huevos" data-source="post: 706640" data-attributes="member: 301161">Wod, if you were inside the planet on the polar axis, somewhere in a direct straight line between the north and south pole, then the motor polar axis would need to be parallel with the geopolar axis for perfect tracking.  In that case, for each latitude, you would always be an identical distance from all satellites along the arc. But the reality is we are on the surface of the planet, offset in the arc, and so our southern most satellite is closer to us than those at the ends of the arc so the motor elevation needs to be adjusted accordingly.motor elevation = (90-(lat-(((lat-43)*(lat-43))/(51.3*51.3))+(0.000556*lat)+0.68))</blockquote>