The TESS-Keck Survey XX: Mass Catalog and Data Release

The Transiting Exoplanet Survey Satellite (TESS) has discovered thousands of new worlds with TESS52 planet candidates now outnumbering the total number of confirmed planets from Kepler. Owing to53 differences in survey design, TESS continues to provide planets that are more amenable to further54 follow-up, including mass measurement via radial velocity (RV) observations. In this work we present55 the TESS-Keck Survey’s (TKS) Mass Catalog: a uniform analysis of all RV survey data which has56 resulted in mass constraints for 127 planets and candidate signals. This includes 60 mass measurements57 that reached ≥ 5σ precision. We confirmed 33 new planets from the TESS mission either by significant58 mass measurement or statistical validation; and we find no evidence of likely false positives among59 our entire sample. This work also serves as a data release for all previously unpublished survey60 data resulting in a rich dataset comprising 9,644 radial velocity measurements and associated activity61 indicators over our three year survey. We took the opportunity to assess the performance of our survey,62 and found that we achieved many of our goals including measuring the mass of 39 small (< 4R⊕) planets, nearly achieving the TESS mission’s basic science requirement. In addition, we evaluated the performance of the Automated Planet Finder (APF) as survey support and observed meaningful constraints on system parameters due to its more uniform phase coverage. Finally, we compared our measured masses to those predicted by commonly used mass-radius relations and investigate evidence of systematic bias.