LSD profiles of the seven 2023 epochs in the stellar rest frame. Top: V/I_c (purple line, the shaded band shows 1σ error bars) and N/I_c (gray points with 1σ error bars) with a vertical offset per epoch. The labels indicate the date, the detection status (DD: definite detection; ND: no detection) and, for definite detections, the mean longitudinal magnetic field B_ℓ in Gauss. Bottom: Stokes I for all epochs. The shaded vertical window indicates the range used for computing B_ℓ.