Top: Maps of the CO J = 4–3, J = 6–5, J = 8–7, and J = 11–10 lines. Center: Maps of the emission lines [NII], [CI] (1–0), [CI] (2–1), and [CI] (2–1)/(1–0). Bottom: Velocity-integrated optical depth maps of the absorption spectral lines: HF, H₂O⁺, OH⁺, and CH⁺. The total area of each map is  ~3.5 × 3.5 arcmin². The maps have a pixel size of 9.5″. The maps observed with the SLW detector (ν <  970 GHz) have a FWHM ~ 30″ and those observed with the SSW detector (ν > 970 GHz) have a FWHM ~ 18″. All the maps are centered at the position of Sgr B2(M).