Comparison between CCF and LBL RV drifts measured from the Fabry-Pérot spectra obtained by the simultaneous calibration fiber of SPIRou observations of TOI-1759. The top panel shows the CCF drifts versus LBL drifts (black circles) as well as a linear fit to these quantities (solid green line) and its 1σ uncertainties (dashed red lines). The linear fit (parameters presented in the legend) shows a correlation of 0.96 between the CCF and LBL drifts. The bottom panel shows the differences between LBL and CCF drifts (black circles), the median (dashed blue line), and the 1σ = 1.9 ms⁻¹ dispersion (shaded blue region).