Comparison of a set of Solar Orbiter / EPT ~245 keV ion onset-time distributions for the October 28, 2021 GLE event as a function of data-integration time. The upper panel displays the distributions with detrending, and the lower panel shows this without detrending. For this run, the native data time resolution was skipped because it was very different from the distributions produced by time-averaged data, and one-minute data were used instead. For the one-minute data, $\text{Δ}{u}_1^1=8$ min, and the data were therefore time averaged up to a cadence of eight minutes.