Error distributions for the bin at R = 11.5 kpc and z = 1.5 kpc for the different velocity components: v_R (left), v_z (middle), and its covariance (right). The corresponding medians of the error distributions are shown by the vertical grey dotted lines. The vertical grey dashed lines indicate the values of the velocity moments taken from the data directly (i.e. not accounting for the errors). The black vertical solid lines lines show the recovered intrinsic velocity moment from Method 1 (see Sect. 3). Even at this bin, which still contains 2016 stars, the impact of the measurement errors on the recovered velocity moments is relatively small.