The TOI-199 b transit time from a symmetric fit to TESS Sector 97 agrees with the published prediction

We measure one transit time for TOI-199 b from public TESS Sector 97 data. This event was not used in the timing fit of Bello-Arufe et al. (2026). A symmetric transit model gives BJD_TDB 2460982.83262, with a statistical standard uncertainty of 0.99 minutes. The time is 0.61 minutes after the published prediction. The prediction has lower and upper uncertainties of 14.69 and 11.81 minutes. Changes to the baseline, fit window, transit shape, exposure sampling, and flux product shift our time by at most 0.70 minutes. Three earlier TESS events give times within 0.31 minutes of their listed values. We provide the source FITS files, file hashes, code, timing samples, tables, and figures. The result adds one measured time for later studies of the known planet system. One event does not test all future predictions or give new planet mass constraints.

TOI-199 b · TIC 309792357 · TESS · transit timing · public data · reproducible research