Comparison of various reported values of K_p and v_sys for theWASP-33 system. Our result is indicated by the circular marker, along with 1σ and 3σ contoursin black and gray, respectively. The corresponding results from Fig. 14 in Nugroho et al. (2017) for TiO are also plotted, with the location of their S∕N peak denoted by the cross marker and the 1σ and 3σ contours shown in dark and light red. The S∕N peak from the recent Nugroho et al. (2020) Fe I detection is indicated by the star marker, with the 1σ and 3σ contours from the S∕N matrix shown as solid dark blue and solid light blue lines. The v_sys = −20 km s^-1 lower limit in their analysis caused by stellar pulsations is denoted by the dashed blue line. Previously reported values for v_sys (Gontcharov 2006; Collier Cameron et al. 2010) and K_p (Kovács et al. 2013; Smith et al. 2011; Collier Cameron et al. 2010) are shown above and to the right of the plot, with the strokes indicating the reported values, and the extended black and gray bars denoting the 1σ and 3σ errors, respectively. The negative errors for the K_p values are clipped for clarity.