In situ plasma and magnetic field of the ICME observed in March 1998 by ACE located at  ≈1 AU from the Sun. From top to bottom: absolute value of the magnetic field (B = |B|, in nT), magnetic field vector orientation (GSE): latitude (θ_B) and longitude (φ_B), bulk velocity (V, in km s^-1) including in black the fitted straight line for the MC range (see Sect. 4.5), the expected (continuous black line) and observed (dots) proton temperature (T_p, in K), proton density (n_p, in cm^-3), and proton plasma beta (β_p). Vertical lines mark different interfaces separating different plasma regions (see Sect. 4.2 for a description and Table 1 for timings). Horizontal dotted lines in θ_B, φ_B, and β_p mark values at 0°, 180°, 1 as a reference, respectively. Color version available online.