Folded 0.2−2 keV flux light curve (top panel) and hardness (bottom panel) of the NICER data from W1. In each modulation, the X-ray spectrum softens (higher log[A₁/A₂]) when the flux drops. The data points are coloured based upon which modulation they are associated with – M1, M2, or M3 – with M1 starting at MJD = 59220.3, and the light curves are folded with a periodicity of 3.05 days (this is consistent with the periodicity estimate of $3.0_{-0.4}^{+0.6}$ days provided by the LSP, but folding at 3.05 days provides a clearer presentation of each modulation than 3.0 days).