Photometry of the four data sets obtained by TESS for TIC 441725813. The first set covers 12 sectors from S14 to S25 (only 2-min cadence data available; top panel a). The second, third, and fourth data sets consist of 20-s cadence data for S40−S41, S47−S52, and S55−S60 respectively (top panels b–d). Taking the first data set as an example: the upper panel a shows the entire light curve spanning 312.1 days and sampled every 2 minutes. Gaps are due to the interruption during data download and points removed from the light curve because of a non-optimal quality flag warning. The bottom panel a′ is a close-up view of the first day of observation, which shows clearly brightness variations caused by pulsations.