Cyclotrons Electron beams 4 Exosphere 4 Ions 4 Magnetic fields 4 Mars 4 Pickups 4 Protons 4 Solar wind 4 Upstream 4 Bow shocks 2 Cone angle 2 Cyclotron 2 Cyclotron radiation 2 Cyclotron resonance 2 Cyclotron waves 2 Degree of polarization 2 Electric fields 2 Electromagnetic plasmas 2 Elliptical polarization 2 Interplanetary flight 2 Interplanetary magnetic fields 2 Interplanetary spacecraft 2 Ion pick-up 2 Magnetoplasma 2 Mars global surveyor 2 Minimum variance analysis 2 Pick-up 2 Pick-up ions 2 Planets 2