Light curve of EXO 2030+375 as measured by MAXI (2−20 keV), with data binned over one orbital revolution of the International Space Station, where MAXI is mounted (∼1.5 hours), shown in the first panel. The second panel shows the light curve from the Insight-HXMT observations during the 2021 giant outburst. Each point represents the daily-averaged luminosity (0.01−150 keV), derived through spectral fitting of the Insight-HXMT data.