Kepler-1658 archive light curves give a TESS to Kepler eclipse loss ratio of 1.07 with quadratic baselines

We compare the primary eclipse of Kepler-1658 in 15 Kepler quarters and seven TESS sectors. We use public light curves from MAST. Each event has a local quadratic baseline. We measure mean light loss in a common 4.08-hour window. We apply no planet depth prior. The retained sample has 94 Kepler events and 37 TESS events. Equal weights for each quarter or sector give 645.6 and 689.4 parts per million, respectively. The TESS to Kepler ratio is 1.068. Its central 95% empirical resampling interval is 0.863 to 1.287. This interval assumes the selected sample and analysis model. Tested baseline choices give ratios from 0.951 to 1.187. Off-eclipse windows give apparent TESS light losses from -70 to 78 parts per million. Artificial eclipses test the effect of exposure length and masks. The data allow equal mean losses. This comparison does not identify the eclipsing bodies. The missions observed in different years. Thus, wavelength effects and changes over time remain mixed. We release native data, event measurements, code, figures, and validation checks.

Kepler-1658 · KIC 3861595 · TIC 377873569 · eclipsing binary · eclipse area · Kepler · TESS · public data · local baseline · reproducible photometry