A row centroid response remains at the known KIC 11084727 dip after tested pointing corrections

We tested archived centroid series at the known comet-like dip of KIC 11084727 in Kepler quarter 11. A fixed profile with a quadratic baseline and fitted pointing terms gives a row response of -0.363 millipixel. Its conditional 95 percent residual-block interval is -0.421 to -0.303 millipixel. The response stays negative across six baselines, three block sizes, and separate baseline fits that exclude the dip. Its magnitude exceeds all 147 tested same-quarter controls. These controls overlap and do not give an independent-trial false-alarm probability. The column response changes sign with pointing treatment. The bright star can have a centroid response from saturation and charge transport. Thus, these series do not give a reliable source position. We establish no new planet, comet, blended source, or instrument cause. The package contains code, exact input hashes and source URLs, local data, controls, intervals, a figure, and offline instructions.

Kepler · KIC 11084727 · centroid · saturation · exocomets · pointing