Solar energetic particle fluences and relative abundances. Top panel: Fluence spectra from SIS (filled circles) and HET (circles) summed over the event, and fitted Band function spectra (dotted lines). Bottom panel: Abundances from 0.32–0.45 MeV/nucleon for the 2022 January 20 event compared with averages at the same energy from the survey of 64 large SEP events by Desai et al. (2006). Blue half-filled squares are from Solar Orbiter SIS, filled red circles from ACE/ULEIS, and orange diamonds from STEREO-A/SIT.