IRS/SL map of the silicate-based extinction A_V(9.85 μm) with the contour lines of the IRS/SH map of the surface brightness (in units of 10^-12 W cm^-2 sr^-1) of the molecular hydrogen line H₂ S(1) 17.0 μm (top left panel), the IRS/SH map of the H₂ S(2) 12.3 μm line (top right panel), the IRS/SL map of the H₂ S(3) 9.7 μm line (bottom left panel), and the IRS/SH map of the [Ne II] 12.81 μm (bottom right panel). The figures show that the H₂ emission is stronger in a region  ≳2.3′′ away from the peak obscuration, although the H₂ S(2) is the closest to the peak obscuration and to the H₂O mega maser, as well as the [Ne II], which peaks at the H₂O mega maser (within  ~1′′), as seen in Fig. 5.