Kepler Q1 to Q16 do not resolve an odd-even transit contrast in 1345 selected KOI-2700 orbits

We test for a stable difference between odd and even transits of the known dust-tail candidate KOI-2700. Kepler release 25 gives 1345 selected orbits in quarters 1 to 16. An affine local baseline and quarter trends give an aperture-flux difference of 24.6 ppm, with an approximate 95 percent cluster interval of -20.5 to 69.7 ppm. Corrected flux gives 11.0 ppm, with an interval of -37.9 to 59.8 ppm. Time splits, band widths, trial periods and block lengths retain the null result. A tail-adjacent comparison window gives a nominal offset. It warns of phase-dependent effects and is not a new signal. A 100-ppm added difference in normalized center-band flux has unit transfer through the estimator. Conditional cluster-score trials give high sensitivity at 100 ppm, but do not test detector response or a full dust model. The products share exposures. No independent instrument confirms a signal. The result constrains one local contrast under stated noise assumptions. It does not rule out dust release or find a new planet. Code, aggregate results, input hashes and retrieval steps are included. Raw data and record-level tables stay outside the bundle.

astronomy · Kepler · KOI-2700 · odd-even transit · dust tail · null result · cluster uncertainty