Hughes Aircraft Company (now L-3 ETI) has developed the XIPS (Xenon Ion Propulsion System) for performing station keeping on its geosynchronous satellites (more than 100 engines flying).
Hughes Aircraft Company (nu L-3 ETI) har udviklet XIPS (Xenon Ion Propulsion System) til at sørge for at holde deres satelliter i en geosynkron bane (mere en 100 motorer har været i drift).