Galactocentric XY map of the corrected velocities in the b direction derived from Gaia DR3 proper motions for the pP50 sample. Bins have sides equal to 0.2 kpc and are colour-coded by median . Only those bins with ten or more stars are shown. Black diagonal lines show the Galactic longitude limits of the sample. Grey lines indicate Galactocentric radii from 4 to 16 kpc and azimuths from −20° to 70° with 10° steps.