CH₃OH Q-branch, H₂CO, OH^* prompt emission and HCl detection (after continuum subtraction) observed the second observing night (left) and fluorescence emission lines most likely due to HCl observed in order 16 (right) during the 01.01.2022 and 03.01.2022 (upper and lower panel, respectively) observing nights. The model (in red) fits the observed lines after the removal of the continuum. The line at about 2864.5 cm⁻¹ is affected by atmospheric residual (the modeled transmittance is below the spectra in cyan), while the line at about 2838.5 cm⁻¹ seems blended with another species. For all the plots, the yellow line indicates the ±1σ error.