One dimensional (1D) positional RMS (expressed in units of VIS or NISP pixel depending on the panel) as a function of VIS or NISP instrumental magnitude. The red horizontal line is set at the median value of bright, well-measured (QFIT < 0.05) stars that lie within the two red, dashed, vertical lines. The median values in pixels and mas are reported in each panel. Only 20% of the points are shown for clarity.