Posterior distributions for our KELT-20b atmospheric retrievals constrained by the NIR occultations (HST and Spitzer, blue) and the NIR+TESS occultations (red). The reported values at the top of each marginal posterior denote the median of the distribution and the boundaries of the central 68% percentile (i.e. the 1σ credible intervals). The shaded areas in the marginal histograms denote the span of the credible intervals.