Spectra of all molecular lines for the full disk (left panel), a 3″ sized region in radius in the center (middle panel) and the western edge of the molecular ring (right panel) where N₂H⁺ is particularly bright. The full disk spectra are extracted using the area covered by the perimeter (“hull”) of the mosaic of all pointings (see Fig. 1) for ¹³CO. Since this hull is frequency dependent, this corresponds to the smallest area out of all lines.