Data from the Lockheed ion mass spectrometer and electron spectrometer on the polar-orbiting satellite S3-3 were used to determine some of the general characteristics of upflowing beams of protons and oxygen ions at an altitude of about one earth radius above the auroral regions and also their relationship to auroral electrons. Ions of both species were found with energies throughout the range of the instrument, 0.5--16 keV. The energies of the two ion species were well correlated with one another. The oxygen ion energy almost always exceeded the proton energy and was, on the average, 1.7 times higher. The average energy of the accompanying electrons was also correlated with the ion energies and was usually intermediate in value. THe fluxes of ions and electrons appeared to behave quite independently of one another, but the fluxes were found to be limited in their range. Proton fluxes did not exceed 109 (cm2 s sr)-1 and oxygen ion fluxes did not exceed 5¿107 (cm2 s sr)-1, while the fluxes of electrons always exceeded 3¿107 (cm2 s sr)-1. The results of this study suggest that the protons are principally energized by a quasi-static parallel electric field and that on a statistical basis the O+ ions derive about half of their energy from this mechanism and about half from some mass-dependent process.