8138 20260714091922.0 POSTER-2026-0078 Fabian, Andras The M³G Service: Managing GNSS Metadata to Support Geodetic Reference Frames in Europe 2026 2026-03-02 NO Bruyninx, Carine Miglio, Anna Legrand, Juliette IAG Symposium Reference Frames for Applications in Geosciences (REFAG2026), Munich, Germany carine.bruyninx@ksb-orb.be CPOSTER