The two lowest Gaia G fluxes of a proposed TOI-1216 source fall in the fixed 4.554-day dip window

We tested resolved Gaia DR3 epoch fluxes for a proposed source of the known TOI-1216.01 dip. The source is Gaia DR3 4648442077964982912, 31.43 arcseconds from the target. We held the earlier TESS period, epoch, and 10.098-hour shape fixed. Of 34 finite G measurements, only two fall inside this window. They are the two lowest G fluxes. One has a Gaia variability rejection flag. The fitted G depth is 0.3188 with a formal standard error of 0.0234. For 200,000 common epoch shifts at the fixed period, 0.005435 of the shifts give at least this positive-depth fit improvement. This fraction rises to 0.011255 with accepted G data. These fractions are conditional alignment measures, not global false-alarm probabilities. The scaled Gaia catalogue shape gives a lower chi-square than the TESS shape, both with and without rejected G data. The epochs do not establish a new period or identify the cause of the TESS dip. A TIC magnitude check gives a total TESS flux ratio of 0.00078495. For the prior 182.5 ppm TESS depth, a total eclipse would require a candidate-to-target aperture fraction ratio of at least 0.23255. If the intrinsic TESS depth equals the fitted G depth, this ratio is 0.72978. We do not measure these aperture fractions. The package preserves raw responses, provenance, code, phase scores, figures, and independent numerical checks. No planet is confirmed.

TOI-1216.01 · Gaia DR3 4648442077964982912 · TIC 724236847 · TESS · Gaia epoch photometry · eclipsing binary candidates · transit source tests · phase alignment