LTT1445 ligt curves from TESS sectors 4 and 31. First row: TESS PDCSAP light curve for sector 4 with 2-min cadence (first column) and sector 31 (second column) for a 2-min cadence (black) and a 20-s cadence (grey). A clear modulation with a period of 1.4 days is clearly visible. Second row: Respective detrended light curves with the best-fit model (in red) from the analysis of Sect. 4.2.2. The vertical lines identify the transit for each planet: b₁ to b₁₀ for planet b, and c₁ to c₁₆ for planet c. The light blue dots in the 2-min cadence in the upper panels are the outliers in the dataset that were removed from the PDCSAP light curves.