TESS 2019 (left), 2021 (middle), and 2023 (right) light curves. Panels a: double harmonic fit (blue lines) to the original PDC_SAP data (grey dots). Panels b: original (grey dots) and heavily smoothed (red lines) residuals to the double harmonic fit of panels a. Panels c: original data corrected for the smoothed residuals from panels b (grey dots – these data are used for the rotation analysis) along with a double harmonic fit (blue lines). Panels d: original (grey dots) and heavily smoothed residuals (red lines) from panels c. Panels e: residuals from panels d. These data are used for the pulsation analysis.