Upper panel: kinemetric model velocity map of the cleaned data cube. Black dots denote the best fitting ellipses. The model goes only to r ∼ 100^′′  along the Galactic plane and to ∼60^′′  perpendicular to it. The Voronoi bin with the highest uncertainty was excluded from the model. Lower panel: the velocity map as in Fig. 5 shown in grayscale, the bins that show rotation perpendicular to the Galactic plane are overplotted in colour scale.