The TESS Ten Thousand Catalog lists NGTS-23 b at about twice its planet period
We test whether a TESS Ten Thousand Catalog entry and a matching period can establish that a planet signal is a stellar binary. We compare its 10,001 final entries with saved ExoFOP and NASA Exoplanet Archive tables from 2026-10-21 UTC. Seven targets share exact TIC numbers with the TOI list. One is the confirmed planet NGTS-23 b. Its catalog period is 8.153216 days, or 2.0000861 times its published planet period. Both catalog eclipse times fall near consecutive planet transits. We measure 138 events in 16 archived TESS light curves for the seven targets. NGTS-23 b has an even-minus-odd central depth difference of +175 ± 691 ppm. TOI-7349.01 has a difference of −3568 ± 889 ppm in corrected flux, with a seven-test corrected p value of 0.00970. Its odd events are deeper in both tested sectors and in raw aperture flux. The result supports the longer event sequence already in the catalog for this target. It does not determine a companion mass or source position. This exploratory audit shows that the NGTS-23 b catalog entry alone cannot reject the known planet signal. The package preserves all source bytes, code, figures, checks, and reproduction instructions.
TESS · NGTS-23 b · TOI-7349.01 · eclipsing binaries · transit depth · period alias · catalog audit · reproducible research
References
9- usesdoi:10.3847/1538-4365/ade2d8
We test exact TIC matches to the final 10,001-entry catalog, with scope limited to tables 3 and 4.
- usesdoi:10.26093/cds/vizier/bb-8q-1j
We preserve the 2026-10-21 VizieR snapshot of the catalog tables and their source description.
- usesdoi:10.1093/mnras/stac3192
The confirmed mass and published transit ephemeris of NGTS-23 b provide an external control for its catalog entry.
- usesdoi:10.26133/NEA13
We query the Planetary Systems Composite Table at 2026-10-21 05:04 UTC and preserve all 6451 returned rows.
- usesdoi:10.26134/ExoFOP5
We preserve the public TOI team list retrieved at 2026-10-21 04:59 UTC and use its target identities and ephemerides.
- usesdoi:10.17909/t9-r086-e880
Eight public QLP light curves supply data for four targets and their raw aperture checks.
- usesdoi:10.17909/t9-nmc8-f686
Eight public two-minute SPOC light curves supply data for three targets, including NGTS-23 b.
- usesdoi:10.1093/mnras/staf347
This prior candidate search includes TIC 88507544, now TOI-7703.01. We make no new candidate claim for it.
- usesdoi:10.26093/cds/vizier
VizieR supplies the catalog tables and source metadata.
Cited by
6 publicationsPublic catalog entries on Sciscape.
- Kepler positions and 2009–2024 transits link TOI 7017.01 to KOI 1254.01
This earlier study of other TESS catalog matches separates catalog labels from evidence for companion type.
- usesThree of 33 entries in a frozen TESS table lack notes on large period differences with Gaia DR3 SB1 solutions
This prior SCI audit identified the TESS Ten Thousand tables as a useful source for period checks. Its saved Table 3 guided the first sample selection. We use a direct CDS snapshot for the final analysis.
- Circular-orbit fits to TESS sectors 1-107 give periods of 29.351 d for TOI-1892.01 and 22.304 d for TOI-4706.01, and show that the ExoFOP ephemerides of TOI-948.01 and TOI-2350.01 are 2.3 d off
Shows a catalog period error of a factor of 2. Our work shows other catalog period errors (maximum periods and out-of-date ephemerides).
- TESS fits place secondary eclipses near phase 0.5 in three selected TESS Ten Thousand entries with periods of 1 to 2 days
This prior study checks TTT period labels for seven other targets. We test different targets and secondary phase values.
- The published HD 40956 b orbit gives a minimum mass of 4.30 Jupiter masses for a 2.00 solar mass star
This related SCI study tests a catalog value against source transit data. It supplies context for direct source checks. We reuse none of its code or measurements.
- usesZTF DR24 data do not resolve alternate event depths for TOI-7349.01 at a fixed 2.980341-day period
We select TOI-7349.01 and its alternate-event hypothesis from this TESS result. We compare independent ZTF measurements with its reported depth difference.