Fixed TESS image models place TOI-5008.01 light loss closer to a Gaia binary candidate in sectors 66, 93, and 104
We tested the source of TOI-5008.01 with public TESS pixels. A search of 8040 TOI entries and 2184477 Gaia binary candidates gave 156 period pairs within 120 arcseconds. We chose one case after documented search extensions. Its assigned star is about 6 arcseconds from Gaia DR3 5958084289208324992. We used sectors 66 and 104 for the main test and reserved sector 93 before its download. With fixed response models and fitted coordinate shifts, all three loss images place the signal closer to the binary candidate. The fitted distances from the binary are 1.25, 2.38, and 0.93 arcseconds, respectively. The distances from the assigned star are 5.90, 6.97, and 6.63 arcseconds. The fixed binary position gives a lower weighted residual sum than the fixed target position in each sector. The tested image, event, and registration controls keep this distance ordering. The main timing fit gives a period of 2.77577010 days. Event bootstrap errors omit response-model and registration error. Several faint Gaia sources are also close to the fitted loss. The data therefore support a nearby-source explanation, but do not establish a unique host, confirm a binary, or set a final planet disposition. The signal and the Gaia candidate were already known. The package preserves code, lossless pixel extracts, light curves, source queries and hashes, pair tables, event images, resamples, and figures. The three sector fits can run offline.
TESS · Gaia DR3 · TOI-5008.01 · TIC 150531994 · eclipsing binaries · source position · contamination · reproducible research
References
11- usesFixed TESS models give lower residual sums at Gaia binary positions than at the assigned stars for two TOIs in four sectors sci:sha256:d47c589177bbec84c6559fc996322eb3b55cbb22309d9277422afb3ac8940494
We follow its event-image source method and reuse the MIT response helper from its package. We test a different TOI in three sectors.
- TESS image fits with pointing terms place the TOI-2541.01 dips near a Gaia binary in sectors 98 and 106 sci:sha256:f70f1da6d7e149c7293fd20c47801014f3f05d28b8b18a846447bbaa69d8b7b5
This prior source test for TOI-2541.01 explains one exclusion from the target search.
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This prior source test for TOI-1960.01 explains one exclusion from the target search.
- Fixed TESS response fits for TOI-4876.01 change the nearer star when the reference list changes in sector 64 sci:sha256:58b408c33096e4cd1efcca62771134e1ddd6e8a0ff59a3300f1226e586d9ffff
This prior source test for TOI-4876.01 explains one exclusion and shows why source-list controls are needed.
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The Gaia binary catalog supplies the known candidate and its model values.
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Gaia DR3 supplies positions, proper motions, magnitudes, and binary records.
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We analyze the two-minute SPOC light curves in sectors 66, 93, and 104.
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We analyze the two-minute SPOC pixels in sectors 66, 93, and 104.
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We check the public target record and notes on 2026-10-23.
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This paper describes source positions from TESS variable-light images.
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This paper describes the TOI catalog.
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