Light curves of 4U 1624–49 during IXPE, NuSTAR, and NICER observations (in count s⁻¹). In the first two rows at the top, the IXPE light curve (per detector) in the 2–8 keV energy band and the HR (5–8 keV/3–5 keV) are shown. In the third row, the NuSTAR 3–20 keV light curve (per detector) is represented. The NICER 0.5–10 keV light curve (per detector) is plotted in the last row. The gray regions correspond to the dips. Each IXPE bin corresponds to 480 s, while for NuSTAR and NICER each bin is 120 s long.