Results of the Fourier analysis performed on QLP data for TIC 312111544. Panel a : QLP light curves from TESS Sectors 61, 72, and 88. Panels b and c show the DFTs of each sector, as well as the mean rotation (b, black dotted line) and the mean mode frequency obtained (c, black dashed line). The black dotted lines in panel c represent sidelobe frequencies. The frequencies highlighted in panel c are obtained after pre-whitening the rotation signals shown in panel b).