Spatial distribution of the H₂O maser components (crosses) with respect to the position of the radio continuum emission peak (filled circle) at 22.22 GHz. The colorbar represent the LSR velocity of the masers and the symbols sizes are their positional uncertainties. The bottom right panel is a close-up of H₂O maser components in the central area of IRAS 18443–0231 (marked by a black dashed rectangle in the left panel), close to the continuum emission peak.