Top: relative absolute coherent flux noise as a function of wavelength, measured in the data and estimated by the GRAVITY pipeline assuming fully correlated and uncorrelated baselines. Center: relative absolute coherent flux slopes as a function of wavelength for the data, the simulations, and the pure telluric models, including their respective molecular contributions. Bottom: residuals of the relative absolute coherent flux slopes between the simulations, the data, and the telluric models.