Position velocity diagrams showing the comparison between the data and the BBarolo best-fit model performed on the Big region around NED01. The red contours show the disk model, and they are overplotted onto the observed ALMA CO(1–0) line data (displayed in grey, with blue contours at 3, 6, 9, 15, 20, 30, 40, and 50σ). The upper panel shows the PV diagram extracted along the major axis. The yellow data points indicate the best-fit rotational velocity of each ring. The lower panel shows the PV diagram computed along the minor axis.