Comparison between mean and simulated spectra for source Gaia DR3 1435896975388228224 (top) and source Gaia DR3 4339417394313320192 (bottom), both belonging to the PVL dataset. Blue and red points represent the Gaia BP and RP mean spectra, while the grey curves represent the model predictions for the corresponding instrument. The superimposed yellow curves represent the source SPD arbitrarily rescaled in flux. We note that the wavelength in BP decreases from left to right.