White light curves of WASP-33 b obtained with the GTC, artificially shifted for visual inspection. Green filled circles correspond to OR1, and red filled diamonds to OR2. Each OR is presented in three sections, described from top to bottom as follows: the raw photometry along with the best-fit model in black continuous line, the transit light curve after the pulsations and detrending models are subtracted, along with the best-fit transit model in black continuous line, and the residual light curves on the bottom.