NuSTAR light curve in the energy range 3−60 keV obtained through the Bayesian block segmentation method. Top panel: light curve over the entire observation period. Bottom panels: three zoomed-in sections of the light curve (corresponding to the three grey-shaded areas in the top panel) to better show the typical time duration and structures of the flares. The ‘holes’ among bins, especially noticeable in the low-luminosity state of the top panel, arise from the passage of NuSTAR through the South Atlantic Anomaly regions.