The predicted light curves of Altjira’s 2026 September 1 mutual event, in the same style as Figure 2, though the range of potential mutual event times is much larger (several days compared to hours in Figure 2). Notably, in the left panel, there are no times at which observations are more likely than not (i.e., p  > 0.5) to catch an ongoing mutual event, despite ∼97% of statistical samples producing an observable mutual event. In the right panel, when aligning the events to the sample’s time of minimum separation, a distinct double-peaked mutual event is apparent. This occurs as the viewing geometry provides significant separation between the foreground component and its shadow.