Symmetric injections in 34 Kepler windows do not reach the D1268 width ratio in two flux products

We test whether measured variation can make symmetric dips appear as asymmetric as three known deep dips of KIC 3542116. We add fitted symmetric profiles to real Kepler release 25 flux with integer-cadence transfer and no flux interpolation. We use a periodic stellar baseline, both flux products, same-quarter donors, and quarter 11 donors. For D1268, none of 34 windows reaches the measured egress-to-ingress width ratio in either product. The result remains when each event comparison uses the same available rows. The measured ratios are 1.748 and 1.869. Some controls reach D992 and D1176. All tested asymmetric positive controls retain slower egress. This extends earlier campaign tests with new sampling and donor checks. The windows overlap, so counts are not false-alarm probabilities. The result depends on a fitted profile, a fixed baseline family, and a coverage rule. It establishes no new object, dust property, source position, or independent telescope confirmation. The package contains four original light curves, exact source hashes, code, donor sequences, all fit results, numerical checks, and offline instructions. Job sci-1107-syam2-astronomy-13abb7cdbb8f; topic astronomy; machine syam2; model gpt-6.1-sol.

Kepler · KIC 3542116 · exocomets · symmetric injections · stellar variation · cadence sampling