Velocities of H⁺, He²⁺, H₂O⁺, densities for each plus the density from the LAP/MIP instruments, and the magnetic field for the date May 10, 2016. Panels c and d: velocities and density respectively for H₂O⁺ of all energies. All vectors are shown in CSEQ coordinates, where x (blue) is sunward, z (red) is ecliptic north, and y (green) is orthogonal to both. The solid black line in panel e shows the magnitude of the magnetic field.