Why are satellites called geo stationary?
HISPASAT satellites operate from a geo stationary orbit, which is why they are named geo stationary satellites. This orbit brings together properties, which allow the satellite which has reached its orbit to begin to rotate around the Earth at great speeds but to maintain a relative position with respect to the Earth. This is a big advantage for communications because the geo stationary satellite is seen from the Earth as a fixed point in space. This aspect gives rise to one of the key properties of geo stationary satellites: their ability to link two points on Earth which are separated through large distances. In fact, it is possible to provide communications coverage for the entire planet with only three communication satellites properly situated in geo stationary orbits Arthur C. Clarke made the first scientific description of the properties of a geo stationary orbit in 1945.
