TOI-1759 b orbit fit. The points in light gray show the SPIRou CCF (upper panel) and LBL (lower panel) RVs phase-folded at an orbital period of 18.850 days. Black points show weighted averages within a bin size of 0.05 (~0.95 days). The green lines and shaded regions show the best-fit models and their uncertainties for the orbit of TOI-1759 b. The residuals are displayed at the bottom of each panel, giving an RMS of 7.7 ms⁻¹ and 4.6 ms⁻¹ for CCF and LBL, respectively.