Equatorial slices of (a) speed (km s⁻¹), (b) scaled (×r²) radial magnetic field (B_r[nT]), (c) scaled (×r²) density (cm⁻³), and (d) the logarithm of thermal Pressure (PLUTO code units) at a time of 20 h since the launch of the CME. The radial traces mark radial slices equally spaced in longitude, and the coloured circles mark the nominal locations of the spacecraft at this time using the same colours as in Figure 1.