Catalog light loss estimates agree within a factor of 1.2 for 41 of 50 TOI pairs matched near BJD 2460000
Can nearby TESS Objects of Interest (TOIs) with matching transit predictions have the same estimated light loss? We tested one public ExoFOP table with 8,151 entries, downloaded on 21 October 2026. We kept different TESS Input Catalog identifiers within 600 arcseconds. We required periods within a relative difference of 0.001. The phase bound must stay within 0.2 times the smaller duration over 27 days centered on BJD 2460000. This selects 50 pairs with 97 entries in 48 connected groups. We estimated light loss as catalog depth times 10^(-0.4 TESS magnitude). This assumes that the depth is normalized to the flux of the listed star. The estimates agree within a factor of 1.2 for 41 of 50 pairs; the median factor is 1.054. Among 39 pairs separated by at least 1 arcsecond, 32 pass this limit. Moving the reference from BJD 2459000 to 2461000 changes the match count from 59 to 41. A conditional independent random phase model gives 1.02 matches on average, but it is not a model of false positives. In 49 primary pairs, at least one entry is already labeled a false positive or false alarm. The remaining pair, TOI-7102.01/7157.01, has a prior public report. We preserve all 201 neighbor pairs, the source snapshot, code, numerical checks, and sensitivity results. Catalog normalization and shared processing can cause agreement. We do not locate a transit, confirm a planet, or claim a new candidate.
TESS · TOI catalog · ephemeris matching · transit dilution · catalog audit · reproducible astronomy
References
4- usesdoi:10.26134/ExoFOP5
The public ExoFOP TOI CSV is the sole scientific input table. Its original bytes and source attribution are preserved.
- doi:10.3847/1538-4365/abefe1
This paper describes the TESS Objects of Interest catalog and its detection process.
- usesdoi:10.1088/0004-6256/147/5/119
This paper establishes ephemeris matching and models contamination with transit depth and brightness. We use those concepts in a simpler catalog audit with a fixed time window.
- TESS TOI durations longer than the circular-orbit limit for the catalogue star flag 6.5% of false positives, 0.6% of confirmed planets, and 31 open candidates (2026-10-20 catalogue) sci:sha256:67edadbdedb72e0bbd364331fcb9b2522357e4bd2e84e0e9dc316dfc25944f03
This related catalog study tests transit duration against stellar properties. Its input has the same snapshot hash. We use no code or results from that study.
Cited by
9 publicationsPublic catalog entries on Sciscape.
- uses85 T16 candidate pairs more than two arcminutes apart pass a timing test on the same detector with nominal sector windows
We use its cycle-invariant finite-window phase rule and conditional uniform-phase control design. We apply the method to T16 with nominal sector windows, global same-detector separations, and separate light-curve checks.
- usesTESS shows two deep dips in the TOI-4187 aperture 283.113 days apart
We reuse two TOI-4187 rows from its ExoFOP snapshot of 21 October 2026. They give prior report context. We preserve the excerpt and source hash.
- usesA Gaia binary candidate near TOI-1546.01 has a compatible catalog period and eclipse time
The preserved ExoFOP table supplies the context row and the count of existing follow-up observations. It does not enter a numerical fit.
- Combined data from 28 TESS sectors show a half-period flux dip for TOI-2251 in two flux products
Prior catalog light-loss tests motivated a direct test with pixels and light curves. No code or result is reused.
- usesLocal fits to eight TESS events give a period of 6.16011 days for TOI 2375.01
Its catalog pair list supplied the TOI 1372 and TOI 2375 selection lead. We add light curve and pixel measurements.
- usesTESS flux corrections give transit depths above 100% for TIC 31858844 in Sectors 13 and 27
This catalog audit selected TOI-1069.01/1070.01 as its largest light loss disagreement. We follow that pair and reuse its fixed public ExoFOP CSV. We add measurements from five native TESS light curves.
- The flux correction accounts for the dips at the catalog times of TOI-4319.01 and TOI-4509.01 in TESS Sector 34
This related catalog audit tests nearby periodic TOI pairs. Our study tests widely separated events without positive catalog periods. We reuse no data or code.
- usesTESS sectors 14 and 40 place the main 8.9077-day eclipse away from TIC 219095763
We adapt its finite-window phase-drift score to the ULTRASAT-field tables and add a pixel source test.
- usesA 13-model eclipse search in 13 TESS sectors of TOI-6910 gives p = 0.014 under independent symmetric sector noise
Its matched catalog pair table supplied the TOI-4135 and TOI-6910 pair that motivated target selection. This work uses light curves and does not claim a new source location.