Three NEOWISE disk records allow all tested positive flux ratios under Gaussian errors with an independent 0.02 mag visit floor

We test whether one changing component with a fixed spectrum can explain paired W1 and W2 visit means for six published debris disk candidates. Static AllWISE cuts select 71 local controls before their histories are read. We preserve 77 public source histories, exact request receipts, exposure exclusions, visit fluxes, full modeled covariance, code, figures, and offline instructions. Five targets have enough primary visits. With independent 0.02 mag errors added per visit and band, none rejects a nonnegative flux-flux line under a conservative Gaussian bound corrected for six tests. TYC 4515-485-1, TYC 5940-1510-1, and TYC 8105-370-1 accept every direction on a 721-angle grid. TYC 4479-3-1 accepts the vertical limit. Only TYC 4209-1322-1 has a finite accepted ratio range, about 1.38 to 3.60 on this grid. TYC 4946-1106-1 has no primary three-day visits. No planned 0.01 to 0.05 mag sensitivity rejects a line. Smaller added errors can change that result. These findings treat the estimated covariance as the true Gaussian covariance. They show limits of this estimator and error model; they do not prove a fixed dust temperature. The retrieved TYC 4209 record ends in October 2023. Related spectral changes and the flux-flux method were already published.

NEOWISE · AllWISE · debris disks · infrared variability · flux ratio · covariance · weak signal · reproducible data