The RIT 10 Evo thruster is ideal for north south station keeping of GEO, LEO and MEO platforms. Thrust levels: 5mN - 15mN - 25mN. The radio frequency Ion thruster uses a high-frequency electromagnetic field to ionize xenon gas atoms to form a plasma containing free 'light' electrons and 'heavy' positive ions. The heavy positive ions are then accelerated by an electrostatic field before being ejected to cause thrust.