Plot of motion of all colour-coded features. Top: Motion of the 86 GHz features identified through all available epochs. The velocity fit with the uncertainty is displayed above the first occurrence of each feature. The size of each feature is normalised to the flux of the central feature (C) of that epoch. The velocities are also given in Table F.7. Bottom: Same as above, but for the 43 GHz features. The velocities are also given in Table F.8.