Editing Geocentric orbit (section)

===Geosynchronous classifications===
; [[Semi-synchronous orbit]] (SSO) : An orbit with an altitude of approximately {{convert|20,200|km|mi|abbr=on}} and an [[orbital period]] of approximately 12 hours
; [[Geosynchronous orbit]] (GEO) : Orbits with an altitude of approximately {{convert|35,786|km|mi|abbr=on}}. Such a satellite would trace an [[analemma]] (figure 8) in the sky.
:; [[Geostationary orbit]] (GSO) : A [[geosynchronous orbit]] with an [[inclination]] of zero. To an observer on the ground this satellite would appear as a fixed point in the sky.
:; [[Clarke orbit]] : Another name for a geostationary orbit. Named after the writer [[Arthur C. Clarke]].
::; Earth orbital [[libration points]] : The [[libration points]] for objects orbiting Earth are at 105 degrees west and 75 degrees east. More than 160 satellites are gathered at these two points.<ref>[https://news.yahoo.com/s/space/20100503/sc_space/outofcontrolsatellitethreatensothernearbyspacecraft Out-of-Control Satellite Threatens Other Nearby Spacecraft], by Peter B. de Selding, SPACE.com, 5/3/10. {{webarchive |url=https://web.archive.org/web/20100505183446/http://news.yahoo.com/s/space/20100503/sc_space/outofcontrolsatellitethreatensothernearbyspacecraft |date=May 5, 2010 }}</ref>
:; [[Supersynchronous orbit]] : A disposal / storage orbit above GSO/GEO. Satellites will drift west.
:; [[Subsynchronous orbit]] : A drift orbit close to but below GSO/GEO. Satellites will drift east.
:; [[Graveyard orbit]], disposal orbit, junk orbit : An orbit a few hundred kilometers above [[geosynchronous]] that satellites are moved into at the end of their operation.