A 13-model eclipse search in 13 TESS sectors of TOI-6910 gives p = 0.014 under independent symmetric sector noise

We test a weak secondary feature in the public TESS report for TOI-6910.01, also called TIC 288471046. We use two-minute light curves from thirteen sectors. We fit local trends and two- to four-hour eclipse templates at 162 phases. Only the 161 regular phases enter the search. The search retains 2081 model-phase cells with all thirteen sectors. All 8192 whole-sector sign patterns give a search p value of 0.0135. This test assumes independent symmetric sector errors, conditional on the weights. The strongest feature is at phase 0.725. A two-hour model gives a depth of 600 ± 226 parts per million (ppm). Its cause is unknown. The archive feature at phase 0.48271 gives 482 ± 218 ppm. That phase was selected from the same observations. At fixed phase 0.5, the three-hour model gives −165 ± 279 ppm and a conditional one-sided 95% upper bound of 312.2 ppm. The bound ranges from 215.0 to 591.6 ppm across the tested models. It assumes a common depth, the fixed archive period and epoch, and symmetric sector errors. This exploratory p value does not cover target selection. The data do not establish a secondary eclipse. They do not confirm a planet or exclude a faint stellar companion. The package contains the archive data, code, event fits, model mask, figures, and checks needed to reproduce the tests.

TESS · TOI-6910 · TIC 288471046 · secondary eclipse · sector sign test · public light curves · conditional upper bound · reproducible analysis