Are all base stations directly underneath a satellite? I think this is an over-simplification if we are chasing pedantics; There are cases where it will be mor

Are all base stations directly underneath a satellite? I think this is an over-simplification if we are chasing pedantics; There are cases where it will be more and others less so the slightly more precise wording might actually be "about 1100km." To the larger picture: it seems we often lose that order of length on the ground due to existing network topologies and geographical limitations.