2017 Updates: Earth Gravitational Model 2020
Daniel E Barnes, National Geospatial Intelligence Agency, Springfield, VA, United States, Simon A Holmes, NOAA, National Geodetic Survey, Silver Spring, MD, United States, Sarah Ingalls, NGA, Arnold, MO, United States, James Beale, National Geospatial Intelligence Agency, St. Louis, United States, Manny R Presicci, NGA, St Louis, MO, United States and Cliff Minter, National Geospatial Intelligence Agency, St. Louis, MO, United States
