TESS light curve of TIC 145863747 (=WD 0810-353). Left panels: target originally observed at a 120 s cadence. Right panels: in the extended TESS mission the full frame image cadence is reduced to 600 s. Top panels: light curve plotted with the tool Lightkurve, a Python package for Kepler and TESS data analysis (Lightkurve Collaboration 2018; Dotson et al. 2019). Middle panels: periodogram computed by Lightkurve. Bottom panels: phased light curve computed by Lightkurve. Both observations include a significant data gap, in each case caused by the Earth rising above the sunshade on the spacecraft and contributing significant scattered light.