Intensities of 273 keV nucleon⁻¹ H (red filled circles) and He (blue), for mid-2020 showing heliocentric distance and yellow intervals (a)–(c) with low intensities. Large intensity increases in the figure are associated with CIRs and SEP events. The text describes residual time variations in intervals (b) and (c) that led them to be disqualified, leaving interval (a) as the super-quiet interval.