All 192 NASA transmission scores with upper limits on the mass input have zero limit flags in the 23 October 2026 snapshot

We tested transmission spectroscopy metrics (TSM) in the NASA Exoplanet Archive table downloaded on 23 October 2026 UTC. All 4,618 stored scores match the metric equation after a stated Python rounding rule. Of these scores, 192 use a mass input marked as an upper limit. All 192 score limit flags are zero. There are 191 true mass limits and one projected mass limit. At fixed reported non-mass inputs, true mass upper limits give conditional score lower limits. We tested historical score cuts for the 177 true mass cases below 10 Earth radii. Ten lower bounds meet the relevant cut. The other 167 cases remain undecided from the mass upper limit alone. For each undecided case, two trial masses below the limit give scores on opposite sides of the cut. The table supplies critical mass values for all 177 cases. Five mass entries were checked against two source papers. These bounds retain the source mass probability levels and do not include joint input errors. The inverse-limit rule is known. The contribution is a saved catalogue test, a dataset that retains limit direction, and reproducible decision code. The package includes the source response, provenance, code, numerical checks, row results, and figures.

exoplanets · transmission spectroscopy metric · mass upper limits · NASA Exoplanet Archive · catalogue validation · conditional bounds · target selection · reproducible research