RV bias for 3785 ESPRESSO observations of 20 different stars. The top row presents an histogram of the slopes of a first degree polynomial that was adjusted to the residuals between s-BART and CCF RVs. The bottom two rows present a scatter plot with the median value of different metrics: intra-night slope of BERV variation, effective temperature, median S/N at 600 nm, and median difference between CCF RV and BERV. All observation nights of the same star are shown with a common color. For representation purposes we do not show the two outliers (with a slope greater than −20 ms⁻¹ h⁻¹ ) in the correlation plots.