Three views of the ZTF-CBO-1 light curve. (a) Original ZTF light curve spanning multiple years. (b) Phase-folded light curve binned to 0.1 days per point, repeated for two periods to show both the full baseline and the complete occultation. (c) Phase-folded PS light curve. Light curves in each band are shifted vertically to align with the r and i bands for ZTF and PS, respectively. Gray regions in panels (b) and (c) mark the model predicted ingress and egress phases.