Centroid of the CO(2–1) emission measured in each ~10 km s⁻¹ velocity channel. The color of the points indicates the CO(2–1) velocity with respect to the systemic velocity not corrected for inclination. The rose diamond marks the position of the 248 GHz continuum peak. The dashed line is the linear fit to the low velocity gas and corresponds to the kinematic major axis of the rotating disk. The dotted line is the linear fit to the high-velocity red- and blue-shifted gas, which traces the projection of the outflow axis in the sky. The error bars in each point indicate the statistical uncertainty in the centroid position. The gray error bars represent the astrometric accuracy of these observations for channels with S∕N > 10 (see Sect. 3.2).