Initial measurements of thermal ions (0 to 50 eV) at mid-latitudes by the Retarding Ion Mass Spectrometer (RMS) on DE-1 are presented. These measurements show the plasmapause signature in H+, He+, and m/q=2 ions, an enhancement or torus of O+ and O++ in the outer plasmasphere and the suggestion of a disconnection between the ionosphere and the bulge region of the plasmasphere. |