Hourly averaged ∼275 keV/nucleon proton (red) and Fe (blue) intensities for the 2022 perihelion passes. The perihelia were on 26 March 2022 (day 085, 0.32 au) and 12 October (day 285, 0.29 au). The yellow boxes show periods that were examined for quiet-time spectra (see the discussion). The inset in lower left panel is the SDO HMI magnetogram on day 085. Right axis upper panels: Solar Orbiter heliocentric distance (green).