CCF maps including all the detected chemical species and Doppler-shift induced by planetary rotation. The two CCF maps are aligned using the K_p values of 225 km s⁻¹ (left panel; detected K_p) and 231 km s⁻¹ (middle panel; expected K_p), respectively. When shifting the CCFs with the detected K_p, no offset from the planetary rest frame is found. The alignment with the expected K_p yields a blueshift before and a redshift after secondary eclipse, which is indicated by the white dashed lines. We indicate the secondary eclipse with the yellow dash-dotted lines. The masked regions in the CCF map outside eclipse correspond to the location of residual stellar lines. Right panel: WASP-33 system. The curved blue and red arrows indicate the planetary rotation direction, and the gray arrow indicates the orbital motion. Due to the planetary rotation, the signature from the planetary dayside experiences an additional blueshift before eclipse and redshift after eclipse.