Pulsation noise removal plot for CH4_on filter’s data. The upper panel illustrates photometric measurements contaminated by pul-sational noise, depicted as light points (unbinned) and dark points (binned). A synthesized baseline model (red curve) combines the eclipse signal generated with batman and the pulsational signature predicted by celerite2. The middle and lower panels respectively present the extracted pulsational component and the corrected eclipse light curve after systematic noise removal.