CRIRES+ data: cross-correlation signal-to-noise ratio (S/N_CCF) K_p−V_rest maps of all tested species. Negative values indicate an anti-correlation of the template with the data. The vertical and horizontal dashed lines show the expected K_p of the planet and the 0 km s⁻¹ rest velocity, respectively. The red cross indicates the location of the maximum S/N. Rest velocities lower than −100 km s⁻¹ and larger than +100 km s⁻¹ are not shown for clarity. The maximum S/N_CCF can be in this excluded region, hence the red cross is not on all figures.