And the angle they point up is (very roughly) the inverse of the latitude. A dish near the equator (0 degrees latitude) points 90 degrees up, a dish near the po

And the angle they point up is (very roughly) the inverse of the latitude. A dish near the equator (0 degrees latitude) points 90 degrees up, a dish near the pole (~80 degrees latitude) points 0 degrees up (tangent line), a dish halfway between there and the equator points about 45 degrees up, and so forth. Page 122 has a handy table with the more precise+accurate lookups (shifted away from the pole since the satellite's altitude is quite a bit shy of infinity, at 35,800km): https://www.ngs.noaa.gov/CORS/Articles/SolerEisemannJSE.pdf https://www.ngs.noaa.gov/CORS/Articles/SolerEisemannJSE.pdf