Phase-aligned light curves for LL and RR correlations using the primary period P₁ = 6.44 h (top) and the secondary period P₂ = 2.60 h (bottom), reported in Bouma et al. (2024). The flux represents the peak flux values on a logarithmic scale extracted from the image planes of each 5-minute scan, using the CASA task imfit. Here, phase ${\varphi }_{1,2}^0$ (i.e., the starting phase for both periods) corresponds to the beginning of the first target scan of January observation (07:17:00 UT). Different symbols mark the different cycles covered during each observation. Note that the accuracy on the period is enough to guarantee phase linkage after ∼1 month, with an accuracy of ≲ a few percent, estimated by Eq. (9) of Bouma et al. (2024).