Xoom-in of Figure 3 on the JWST-MIRI data (red) within the wavelength region 4.90-4.98 µm. The iSHELL observations are shown here in grey. The different transitions in this wavelength region of the ¹²CO v=1-0 (dark blue), v=2-1 (teal), v=3-2 (cyan), and the ¹³CO v=1-0 (orange) transitions are shown to identify the different lines and highlight corresponding line overlaps. The dark blue shaded areas indicate the (relatively) isolated ¹²CO v=1-0 transitions that have been used to determine the pseudo-Voigt line profile of the JWST-MIRI data.