Results of the BE diagnostics along the jet axis. Top: flux ratios of FELs used for this analysis. The upper-left panel shows [S II]λλ6716/6731; the upper right-panel shows [S II]λλ(6716+6731)/[O I]λλ(6300+6363); the lower-left panel shows [N II]λλ(6548+6583)/[S II]λλ(6716+6731); and the lower-right panel shows [N II]λλ(6548+6583)/[O I]λλ(6300+6363). Fluxes are sampled from the inner ±0″.2 around the axis centre to highlight the properties of the central flow. The blueshifted and redshifted outflow directions are left and right of the source position (dashed black line) respectively. Bottom: derived gas properties obtained using the BE method to combine these lines. Here, the line fluxes are sampled across the full jet width (before deconvolution). Overplotted are the corresponding measurements from the previous MUSE-WFM and X-Shooter observations (Murphy et al. 2024). Dashed grey lines mark the knot positions.