VLBA intensity maps at 43 GHz overplotted with three Gaussian fitted jet components (white) and core (black) at six epochs. In the leftmost panel, the labels J1, J2 and J3 denote the three jet components. The blue connected dots indicate the jet ridgeline. The pink contour levels start at three times the rms value, scaling twice. The gray ellipse at the bottom of each panel corresponds to the restoring beam.