Pixel measurements of ∼8 MeV protons as detected by the three viewing directions of EPI-Hi/LET. The top figure shows the whole event as seen by Parker, the lower panel zooms in around the anisotropic period during the early phase of the event (shaded gray area in the top panel). The shaded blue region marks the CME ejecta passage as determined from solar wind magnetic field and plasma observations as well as electron PADs (shown in Fig. 4, left). The two dashed lines mark the onset time of the solar eruption (black) and the time of the in situ shock arrival (red), respectively.