Significance level contour maps of all knot features identified in the LBT seeing-limited continuum-subtracted H₂ image and compiled in Table 3. The contour levels shown represent 3 to 15σ in steps of 2σ above the local background. The central coordinates of each knot determined by 2D Gaussian fitting are given on the top of each panel. A physical scalebar of 500 au is given in the bottom-left corner of each panel. North is up and east is to the left in all panels.