centroids module for the planet candidate TOI 333b for the seven transits detected in TESS sector 02. The dashed white lines outline the aperture mask for light-curve extraction. The star symbol indicates the catalogued position of the target, and individual photocenters are marked by small red dots. The colour bar indicates the number of electrons/s for each case. A centroid image is reliable when no artefacts occur within the aperture mask, e.g. for transits 1, 3, 5, and 6.