A Kepler lower bound finds one amplitude conflict in 1868 NASA source rows at three error widths on 24 October 2026

We test whether a lower bound on stellar radial velocity can check NASA Exoplanet Archive amplitudes without an eccentricity value or eccentricity errors. The bound follows the Newtonian two-body equation and permits every bound eccentricity. In responses saved on 24 October 2026, 1868 source rows and 1142 composite entries meet the selection rules. These include 709 source rows and 237 composite entries without a usable listed eccentricity value. At three listed error widths, only KOI-2513.01 fails in each table. Its factor-of-1000 unit discrepancy and public velocity control were already reported in SCI; we repeat them on new data and add the composite entry. No further low-amplitude conflict occurs in the tested sample at this multiplier. At one width, seven composite entries fail. The six smaller flags use mixed parameter references, and all 11 eligible source rows for those six objects clear the same test at one width. A separate 70-digit implementation agrees with all 9030 decisions at zero, one, and three error widths. We release the frozen responses, every selection decision, source comparisons, code, figures, and an offline repeat check. The screen tests only amplitudes that are too low under a Kepler model. It assigns no confidence level and does not validate passing orbit solutions or measure a population error rate.

radial velocity · catalog consistency · Kepler orbit · eccentricity · NASA Exoplanet Archive · KOI-2513.01 · reproducible data audit