Time series segmentation for the star Gaia DR3 6503897945888972544. Top left panel: full G time series. The grey shadows mark two of the segments extracted by the segmentation algorithm. The period search algorithm retrieved a period P = 0.867 d in both segments. Top right panel: first subseries folded according to the period P = 0.867. Bottom left panel: second subseries folded according to P = 0.867 d. Bottom right panel: full time series folded according to P = 0.867 d. The rotational modulation signal loses coherence across the full time series because of the intrinsic evolution of MARs and can be detected only in the shorter subseries.