stationary orbit
The geostationary orbit is a circular orbit with an altitude of 36000 km above the latitude 0 °. This is a special case of the Earth Motive Orbit. It is the orbit that has the greatest advantage in the operation of satellite including communication and broadcasting satellite. GEO always has a latitude of 0 °. The idea of geostationary satellites for communications was first published by Herman Potočnik in 1928. In 1945, SF writer Arthur C. Clark published a paper describing geostationary orbit as useful for orbiting communications satellites, and this orbit became widely known to the public. For this reason, the stationary orbit is also called the Clark orbit. For a similar reason, there is the Clarke Belt, which refers to space above the equator of the planet near the geostationary satellite orbit, about 35,786 km above sea level. Geostationary orbiting satellites enter an orbital stop orbit, which is an elliptical orbit of 1,352 km and a circumference of 35,786 km, about one hour after launching from the ground, and the circle motor is operated at the origin of the transition orbit to enter the circular orbit.