Spacecraft constellation in the solar equatorial plane, showing nominal Parker spiral field lines connecting each spacecraft to the Sun. The field lines were derived using measured solar wind speeds for STEREO-A, Earth, and Parker Solar Probe, while for Solar Orbiter and BepiColombo, where no solar wind plasma data were available at the time of the event, solar wind speeds from the EUHFORIA simulation are used. The two arrows indicate the estimated locations of the ARs from which the CMEs erupted. The dashed pink line represents the combined extent of the two shock waves injected in the EUHFORIA simulation. This figure was made using the Solar-Mach tool (Gieseler et al. 2023).