Example of three MC profiles illustrating the variety of the observed asymmetric profiles of B(t) for a comparable velocity magnitude. (a) 1 November 2012, (b) 4 March 1998, and (c) 3 September 2002. From top to bottom, the panels show the magnetic field magnitude (B), its components (B_x,FR, B_y,FR, B_z,FR) in the FR frame (Fig. A.1), and the plasma velocity V. The time axis is normalised with the MC boundaries: t_start = 0 and t_end = 1.