The left-hand panel shows the 10 × 10 TESS pixels centred on the target (yellow star), the field stars brighter than Tmag = 21 mag (dots) within a 4-pixel radius, the eleanor aperture (red solid outline), and the source of the signals detected in QLP (blue-dashed arrow). The colourbar shows the TESS magnitude of the field sources. The image has been created using the code triceratops (Giacalone et al. 2021). Upper right panel: TESS sector 7 QLP (blu) and eleanor (red) light curves for TIC 5772442. While the transits of the TOI are clear with a period of approximately 2.5 d in the QLP light curve, no sign of them is present in the eleanor-extracted data. In this case, we use the eleanor pixel-by-pixel light curves (lower right panel) to find that the signal is coming from a NS (blue outline in upper right panel) while the light curve extracted for the target using the eleanor aperture (red solid outline in middle panel) is flat. This TOI is thus a FP. We note that (i) the eleanor aperture does not include the target star; and (ii) the lower panel is flipped along the horizontal axis compared to the lower right panel.
