A local transit model places the flagged TESS Sector 86 event of TOI-2180 b at BJD 2460652.3444 TDB

Public TESS data retain a transit of the known planet TOI-2180 b in Sector 86 under a scattered light flag. The standard corrected light curve has no finite flux during the event. A local joint fit to three earlier corrected light curves and the late aperture flux gives 2460652.34444 BJD TDB. The study draws 500 residual samples at each of three block lengths. With the transit shape fixed, the largest timing standard deviation is 9.08 minutes. The eight pixel tests shift the time by −34.78 to +9.24 minutes. The 37 completed joint model tests shift it by −7.47 to +14.29 minutes. These ranges do not bound all instrument errors. Raw QLP flux retains the event in all nine local models. QLP flux with systematic trends removed also retains it in all nine models. These 18 times are within 10.1 minutes of the SPOC fit. Some flattened QLP columns remove most of the transit. Four fits prefer a small brightening. The new time is 9.36 hours after a straight clock fitted to the first three events. The late and early intervals each span three orbits. The late interval is 583.79 minutes longer, with a conditional residual standard deviation of 10.52 minutes. Earlier work already found changes in transit times. This study adds a later timing constraint from flagged data. No new planet or unique dynamical model is inferred. The package preserves source light curves, a pixel subset, hashes, code, all tested fits, figures, and reproduction steps.

TOI-2180 b · TESS · transit timing · scattered light · public data · photometry