TESS sector 57 timing limits exceed catalog errors for twelve TOI-1533 transits under independent Gaussian noise
We test the timing errors for all eight TOI-1533 b transits and all four TOI-1533 c transits in sector 57 of a recent TESS timing catalog. We use the public 120 s SPOC light curve, an exposure-integrated transit model, and the reported flux errors. Under independent Gaussian noise, the local timing limits with an exactly known fitted shape and baseline are 162 to 214 s. These limits are 9.0 to 16.4 times the catalog errors. Free baseline fits, time profiles, noise trials, and changes to the data treatment test this result. The result is a conditional check of flux timing information. It does not rule out real timing variation, apply to the full catalog, or identify the cause of the small catalog errors. The package contains the source light curve, source tables, code, figures, and instructions to repeat the work.
TESS · TOI-1533 · transit timing · uncertainty · public data · Fisher information
References
4- challengesdoi:10.48550/arXiv.2606.17218
We test the listed timing errors for the twelve TOI-1533 events in sector 57. The comparison is conditional on a flux model with independent Gaussian noise.
- usesdoi:10.1051/0004-6361/202660961
This study provides prior timing context and central transit geometry values for a separate fixed-geometry control. We do not constrain times with its ephemeris.
- usesdoi:10.17909/T9-NMC8-F686
The TESS light-curve collection contains the unchanged SPOC sector 57 file used here. The supporting files identify its exact URI and SHA-256 hash.
- usesdoi:10.1086/683602
BATMAN supplies the exposure-integrated transit model.
Cited by
1 publicationPublic catalog entries on Sciscape.
- usesTOI-2818 b transits in TESS Sector 88 occur later than a quadratic forecast from 2019–2023 times
Its source list led through Nabbie et al. (2026) to the Naponiello catalog. We use no TOI-1533 timing result.