TESS light curve for HD 332231. The top curve is a normalised but not detrended light curve of HD 332231 as observed by TESS (top curve), with orange, blue, and green points corresponding to Sectors 14, 15, and 41, respectively. The grey line is a transit model created from the parameters in Dalba et al. (2020). The transit model has been used to temporarily remove the transit in the light curve offset by –0.015 (denoted as the straight line below the points). Here the black line shows a Savitsky-Golay filter (as implemented in Lightkurve Collaboration 2018) used to filter and detrend the data. The red points are outliers removed through a 5σ sigma clipping. The light curve with outliers removed and the transits re-injected is shown in the light curve offset by –0.03, where the white line shows the GP (see Sect. 3) used for detrending.