A previous global solution for the earth's gravitational field and station positions employed a combination of 21 weeks of Doppler tracking data from seven satellites, a complete set of 5¿ mean gravity anomalies, and geometric constraints from the worldwide satellite triangulation network on 17 of the stations. To this is now added geoid heights over the major part of the oceans obtained from Geos 3 altimeter observations. The solution has a form based on the simple density layer method and is equivalent to a solution in spherical harmonics to the tenth degree and order. The rems difference of 5¿ mean geoid heights of the new solution with the GEM 10 solution is 5.6 m. |