A fixed-shape scan finds no second 300-ppm dip in tested Kepler quarter 15 intervals of KIC 8027456

We searched Kepler release 25 quarter 15 for another dip with the fixed shape of the known KIC 8027456 event. Six raw-flux, corrected-flux and local baseline choices give no additional fitted depth at or above 300 parts per million (ppm). The largest additional depth is 88.1 ppm. The known event gives 485.2 to 507.5 ppm. Each choice recovers 200 of 200 added 500-ppm profiles in local searches near sampled valid times. Added 300-ppm profiles pass the same screen in 97 to 115 of 200 trials. This supports a null result for this shape, time grid and data selection. It does not exclude different shapes, weaker dips, masked times or lost data. Raw and corrected flux share observations. No new planet, comet or independent telescope confirmation is found. The package includes source hashes, code, scan tables, injection trials, instrument checks and figures. Job sci-1107-syam2-astronomy-6dc35e2ec884; topic astronomy; machine syam2; model gpt-6.1-sol.

astronomy · Kepler · KIC 8027456 · exocomet · null result · injection test · fixed template