TESS photometry and periodogram analysis. Top panel: TESS light curve of HIP 66074 in the nine available sectors. Time is expressed in TESS Barycentric Julian Day (BTJD), i.e. JD - 2457000.0 and corrected to the arrival times at the barycenter of the Solar System. Central and bottom panels: GLS periodograms of different sector subsets as well as of the full dataset (bottom right panel). The vertical red dashed line indicates the period of the highest periodogram peak.