A graveyard orbit, also called a junk orbit or disposal orbit, is an orbit that lies away from common operational orbits. A graveyard orbit is used when the change in velocity required to perform a de-orbit manoeuvre is too large. For satellites in geostationary orbit and geosynchronous orbits, the graveyard orbit is a few hundred kilometres above the operational orbit. The transfer to a graveyard orbit above geostationary orbit requires the same amount of fuel as a satellite needs for about three months of orbital station-keeping. It also requires a reliable attitude control during the transfer manoeuvre. Most satellite operators try to perform such a manoeuvre at the end of their satellites’ operational lives.