Line-of-sight velocity maps for v₀ data (a) and the discminer model, v_mod (b). Panel c: velocity residual map after subtracting v_mod from v₀. The dust continuum is overlaid in solid contours with equal levels, as in Fig. 1. The innermost region was masked during the fit by one beam size in radius, shown as the gray shaded ellipse. The insets in panels a and c zoom into the innermost region of the disk to highlight the non-Keplerian velocities. Contours are drawn at v_sys = (4.62 ± 0.60) km s⁻¹ in steps of 0.1 km s⁻¹ and from −60 to 60 m s⁻¹ in steps of 10 m s⁻¹, respectively. All maps show the synthesized beam for CO (black) and the continuum (white) in the lower-left corner. The beams are masked where the CO peak intensity falls below the 5σ level for panel a and where R > R_out for the rest.