Light curves of the solar flare on October 3, 2024. (a): Full-disk light curves during 12:00–13:00 UT measured by GOES in wavelengths of 1–8 Å (black) and 0.5–4 Å (blue). The vertical lines mark the start, peak, and stop times of the X9.0 flare. (b): Light curves from 12:13:30 UT to 12:18:50 UT measured by ASO-S/HXI in the energy range of 20–50 keV (black), 50–80 keV (tomato), and 80–300 keV (cyan). (c): Light curves between 12:13:30 UT and 12:18:50 UT recorded by KW in channels of 20–80 keV (black), 80–300 keV (spring green), and 300–1200 keV (magenta). (c): Light curves between 12:13:30 UT and 12:18:50 UT observed by STIX in channels of 20–50 keV (black), 50–80 keV (hot pink), and 80–150 keV (green).