Geosynchronous Orbit : An orbit about 35,800 km above the Equator. A satellite placed in such an orbit revolves around the Earth once per day. See: Geostationary Orbit
Federation of American Scientists, Glossary of Acronyms and Terms, Washington, DC,USA 2004. https://fas.org/pubs/_docs/10072004163905.pdf, (DPrep - Amer) {1003}