Recovered average planet radius, R_p, for each passband as a function of wavelength for the observed HARPS data. Results from B16 are shown in green (where the wavelength error bars represent the passband wavelength region), and those from our reanalysis are shown in red when using the oversampled CCF and in black when using only every one in four points in the CCF. Subplot: the nightly recovered R_p when using only every one in four points in the CCF (night indicated by colour). The horizontal dashed lines show the mean R_p recovered by the B16 method on the simulated data (i.e. the solid black points in Fig. 1).