Phase-folded TESS data. Left panel shows the detrended SAP photometry folded with the periods, and ephemerides, of Proxima d (top panel), and Proxima b (bottom panel), with the expected transit signatures for different impact parameters. The shaded region shows the uncertainty in the ephemeris. Right panel shows the TESS SAP flux of the four available sectors, with the dates and predicted depths of the potential transiting events highlighted. The green horizontal lines, and shaded regions, mark the potential transits of Proxima b. The lilac lines, and shaded regions, mark the confidence interval of the potential transits of Proxima d.