Cross-correlation results for WASP-122b for Ca I, Cr I, Fe I, FeH, H₂O, K I, and Na I. For each of the species, we present the following plots. First column: residual map before masking the RM effect, where the red horizontal lines represent the beginning and end of the transit and the red tilted line represents the expected velocity of the planet. Second column: K_p map calculated for a range of 0 to 300 km s^–1, the theoretical K_p of the planets is represented by a gray horizontal line. Expected signal from the planet should be detected at K_p =185 km s⁻¹ and radial velocity 0 km s⁻¹. Third column: same as the second column but after masking the RM effect. Fourth column: S/N plot for theoretical K_p value. The green plot is the raw S/N plot and the purple plot is S/N after masking the regions where the RM effect appears. The horizontal gray dashed line represents S/N = 0, and the vertical gray dashed line represents the radial velocity of 0 km/s, which is the expected position of the CC peak. The gray regions represent S/N between −3 and 3.