CCF results derived by cross-correlating the template spectra produced by petitRADTRANS with the observed transmission spectra. First panels: 2D CCF maps of Li I, Na I, Ca I, K I, Cr I, and Fe I with CLV+RM effects uncorrected. The white dotted lines mark the beginning and ending position of the transit, and the inclined white lines indicate the expected trace of signal from the planet. Second panels: same as the first panels but with CLV+RM effects corrected. Third panels: K_p-ΔV_sys maps in the range of −50 ∼ 350 km s⁻¹. The signal is expected to appear around the intersection of two white dotted lines. Fourth panels: S/N plots at the expected K_p position.