Accessible transiting extrasolar planets for TESS single-sector observations (shaded regions) in the period–transit depth diagram. The green shaded polygon covers the region where the data from TESS alone are enough for the detection. The yellow shaded region shows where ground-based data are required, whereas in the hatched intermediate region, a proper transit phase might make the detection possible using the TESS data alone. Dots denote the confirmed transiting extrasolar planets according to the NASA Exoplanet Archive. See text for details on the detection limits.