Overview plot in the one-hour vicinity of the shock on 2021 November 3. (a)–(d) Differential flux vs. time of ∼50 − 6000 keV protons measured by the EPT telescopes pointing in the anti-sunward (a), southward (b), northward (c), and sunward (d) directions. The 64 energy bins arranged in the spacecraft frame are grouped into 13 logarithmically spaced bins. Their central energies are labeled in the right corner. (e)–(g) PAD spectrogram of protons in energy ranges of 52–84 keV (e), 195–297 keV (f), and 1697–2588 keV (g) in the SWF. The PAD is normalized by the flux averaged over all PAs for each time bin. Isotropic distributions show values around one (green) in all PA directions, and the beamed distributions exhibit higher values (red) in the beaming direction and lower values (blue) in the other directions. (h) Magnitude |B| of the IMF. (i) Elevation angle θ_B (black) and azimuthal angle ϕ_B (blue) of the IMF. (j) Solar wind proton bulk speed |V_sw|. The IMF and solar wind speed are measured in the spacecraft frame. The solid brown line marks the shock arrival. The dashed lines bound several time intervals with labels at the top, which are analyzed in Fig. 5.