Median atmospheric model of the first mode (demarcated olive line) and the median atmospheric model of the second mode (demarcated cyan line) from the BT-Settl grid fit to the SPHERE photometry and spectroscopy of HD 112863 B (see Fig. G.1). Included are 25 models chosen randomly from the first mode (translucent olive lines) and 25 models chosen randomly from the second mode (translucent cyan lines) of the posterior distribution. The residuals between the SPHERE data and both the first mode (ΔF_λ(σ)₁) as well as the second mode (ΔF_λ(σ)₂) are shown.