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Symmetric TESS fits put the 2024 TOI-2010 b transit 2.8 minutes after the clock from two earlier events

We measure the August 2024 transit of the known giant planet TOI-2010 b in public TESS Sector 82 data. We fit this event and the earlier events in Sectors 15 and 56 with one symmetric transit model and separate local baselines. The later center is 2460556.14971 BJD TDB with a working error of 0.79 minute. It is 2.79 minutes after the clock set by the two earlier TESS events. Residual block tests and 24 usable artificial transit tests give a working error of 1.30 minutes for this departure. This is 2.14 times the error scale and does not establish a physical timing change. Ten alternate transit fits give departures from 2.78 to 3.29 minutes. A separate trapezoid fit gives 3.24 minutes. The errors are working scales, not calibrated confidence intervals. The earlier events also differ from the published joint clock, so the main test uses our own early measurements. We provide the unmodified source files, provenance, code, results, figures, and an offline reproduction check. The result supplies a later transit time and a uniform timing dataset; it does not show a new planet or provide a secure long-term forecast.

TOI-2010 b · TESS · transit timing · public data · reproducible research · artificial transit tests

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References

8
  1. usesdoi:10.3847/1538-3881/ad00bc

    This study confirms TOI-2010 b. We use its period and reference time to select the fit windows and its TESS limb coefficients for the primary transit profile.

  2. usesdoi:10.48550/arXiv.2311.10232

    We read version 1. Tables 3 and 5 and the data methods give the source facts used in this analysis.

  3. usesdoi:10.17909/t9-nmc8-f686

    The public MAST 120-second TESS collection supplies the three source light curves.

  4. usesdoi:10.1117/1.JATIS.1.1.014003

    The TESS mission collected the source observations.

  5. usesdoi:10.1086/683602

    The batman software computes the primary transit profile and the tested profile variants.

  6. usesdoi:10.3847/1538-4357/ac7c74

    Astropy reads the source FITS data and checks their headers.

  7. The TESS Sector 91 transit of K2-290 c agrees with the 2025 linear orbit model sci:sha256:fe7a4b4af46decaf0dcd4a64a9d0f6056be092eac889232226ca30e26aa342f6

    This related TESS timing study uses artificial transit RMS errors as a working scale and states their limits. We use a similar check without reusing its code.

  8. doi:10.3847/1538-4365/ad18c3

    This prior TOI-2180 timing study informed the initial target screen. That target did not supply a usable new event in the checked 2024 opportunities.

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