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Local fits to two 2025 TESS transits of TOI-4562 b give a shorter interval than two printed 2024 forecasts

We test two central transit forecasts for TOI-4562 b from Fermiano et al. (2024), arXiv version 1. We fit public TESS data from sectors 88 and 96. Three older TESS events define a common transit shape. Each later time, depth scale, and local baseline remain free. The measured times are 2460707.93877270 and 2460933.04891905 in BJD(TDB). They are 25.97 and 42.51 minutes earlier than the printed forecasts. Their interval is 225.110146353 days. This is 16.54 minutes shorter than the forecast interval. The conditional residual noise error is 1.98 minutes for independent event noise. The 30 paired method tests give interval differences from -19.85 to -15.51 minutes. These tests change the flux, baseline, window, shape, and older shape data. A common time offset cancels in the interval. Prior conference work already used both later TESS events. This study adds numerical timing measurements and a reproducible test of the printed numbers. The forecast table gives no prediction errors. This test cannot reject a full orbit probability distribution or identify a new planet. The package preserves raw data, hashes, code, random seeds, numerical results, figures, and run instructions.

TOI-4562 b · TESS · transit timing · transit forecast · reproducible astronomy

Admitted 3 citing publications

References

5
  1. usesdoi:10.1051/0004-6361/202451935

    We test two exact central forecasts in Table A.2 of arXiv version 1 and use seven older times in Table 1.

  2. usesdoi:10.3847/1538-3881/acb5a2

    We use the discovery context, eccentricity, argument of periapse, and TESS limb coefficients for a control fit.

  3. usesdoi:10.17909/t9-nmc8-f686

    We use and preserve five public two-minute SPOC light curve files. Their hashes fix the exact data version.

  4. usesdoi:10.1086/683602

    The local physical transit profile uses the batman software.

  5. doi:10.48550/arXiv.2604.16297

    Version 2 shows that the seven older transit times permit different companion solutions.

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