órbita geoestacionaria geosynchronous satellite sun-synchronous orbit low Earth orbit 구 정지궤도인 22,000마일 geosynchronous geosynchroniczna geosincrónica geostationary orbit NASA hundreds, thousands, and even tens of thousands Three Classes of Orbit three types of orbits tercanggih geosynchronous « Catalog of Earth Satellite Orbits » geosynchronous satellite yere sabit yörüngesinde Catalog of Earth Satellite Orbits geostationary orbit Earth Observatory website Low Earth Orbit geosynchronous orbit Geo-synchronous satellites maximizes the time satellites can spend over geosynchronous satellite artikel NASA hier "Three classes of orbit" Three Classes of Orbit circular sun-synchronous polar orbit geostationary orbit «Catalog of Earth Satellite Orbits - page 2» geosynchronous satellites geosynchronous satellite exactly 42,164 kilometers hundreds, thousands, and even tens of thousands low Earth orbit NASA low Earth orbit å°çéæ¢è½¨é two geosynchronous satellite earthobservatory.nasa.gov geostationary satellite геостационарной орбите NASA Earth Observatory three classes of orbits low Earth orbit geostationary orbit