Maps of the line of sight velocity (V_los) of bulge stars in the APOGEE DR17 data. Top left: central plate of the APOGEE survey (called GALCEN) with individual target stars color coded according to their V_los. Top right: same data binned. Colors show the median V_los in each coordinate bin. Bottom: map of mean (left) and median (right) V_los from an APOGEE DR17 sample covering a larger spatial area. Each bin contains the statistic computed from stars located over a region 3.5 times larger than the pixel itself. The color bar at the bottom applies to all the panels.