Final Report on key comparison EURAMET.M.G-K2.2023 of absolute gravimeters

The regional key comparison of absolute gravimeters, EURAMET.M.G-K3.2023, together with a simultaneously organized additional comparison, was held in Germany at the Geodetic Observatory Wettzell of the German Federal Agency for Cartography and Geodesy in between May and June 2024. This report presents the list of participants who performed measurements, the gravity results submitted by the operators and the data processing strategy. The link to CCM.G-K2.2023 was established via three participants who took part in both comparisons. Finally, the results of the least-squares adjustment, which takes into account the correlations between measurements, are presented by means of the comparison reference values (CRV) and deviations of each gravimeter from the CRV. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/. The final report has been peer-reviewed and approved for publication by the CCM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).