Earth Gravitational Model 2020
Daniel Barnes1, John K Factor1, Simon A Holmes2, Sarah Ingalls1, Manny R Presicci3, James Beale4 and Thomas Fecher5, (1)NGA, Arnold, MO, United States, (2)SGT inc., Greenbelt, MD, United States, (3)NGA, St Louis, MO, United States, (4)National Geospatial Intelligence Agency, St. Louis, United States, (5)Technical University of Munich, Munich, Germany