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Pointing terms reduced position noise in linear pixel fits from 14 TESS sectors of TOI-2095

We test pixel source positions for TOI-2095.03 and the known planets b and c in 14 public TESS sectors. We keep catalog times and transit shapes fixed. A linear time baseline gives excess position noise in nearby time controls. Adding the recorded column and row position terms reduces this noise. For the candidate, RMS values of two whitened spatial coefficients fall from 14.40 and 8.44 to 1.21 and 1.35 in 36 control groups. Known planets b and c show the same reduction. The candidate offset changes from (11.88, -0.12) to (1.31, 0.31) arcseconds in east and north relative to an empirical reference image. Its formal errors are (1.74, 1.75) arcseconds. Control-based error scales are (2.17, 2.36) arcseconds. Alternative baseline and pixel-radius fits retain small offsets. Synthetic image shifts show bias in the first-order spatial model. Residual image noise also exceeds the formal model. These tests support a reduction of false position signals, without a precise sky position, a nearby-source exclusion radius, or planet validation. The package contains 45,270 mean pixel images from 225,218 accepted exposures, source hashes, all event decisions, fitted images, controls, figures, code, and repeat instructions. We report source FITS checksum mismatches and preserve the exact archived input hashes.

TESS · TOI-2095 · TOI-2095.03 · target pixel files · difference images · pointing correction · source position · time controls · reproducible research

Admitted 1 citing publication

References

6
  1. usesTESS data show flux loss in three eras at the fixed catalog ephemeris of TOI-2095.03 sci:sha256:0e31a10f8e00e97f03c0c5b72d8edb399a97d76519b34627a3d70d73a54017aa

    We use its 14 retained candidate event centers to select pixel data. We add pixel fits and tests of pointing terms.

  2. usesdoi:10.17909/t9-yk4w-zc73

    The TESS Target Pixel Files - All Sectors dataset supplies the source images and position correction columns.

  3. doi:10.1051/0004-6361/202346692

    Prior study of the known planets b and c.

  4. doi:10.3847/1538-3881/acfa9f

    Independent prior study of the known planets b and c.

  5. doi:10.5281/zenodo.23453985

    A recent preprint claims validation of TOI-2095.03. We do not repeat its false-positive calculation.

  6. doi:10.1088/1538-3873/aab694

    Prior work on transit difference-image source tests. Our empirical gradient model differs from a calibrated point response model.

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