the first program are GRAVSOFT

 Using the Python interface module GEOEGM. (Gravity Model Evaluation)

http://cct.gfy.ku.dk/publ_cct/cct_publ.htm

the second  program are Harmonic_Synth_v02 (Version 05/01/2006)

                       Simon A. Holmes and Nikolaos K. Pavlis

                                                       Harmonic_Synth

HARMONIC_SYNTH is a FORTRAN 77 program for very-high-degree harmonic synthesis.

HARMONIC_SYNTH combines and expands the capabilities of three related programs that existed in Richard H. Rapp's software library at the Department of Geodetic Science and Surveying of The Ohio State University. These three programs and their functions are:

(a) F477: harmonic synthesis of point values over arbitrarily scattered locations (Rapp, 1982).

(b) F388: harmonic synthesis over regular grids of regional or global extent, using Chris Rizos' (1979) algorithms.

(c) F431: harmonic synthesis of point or area-mean values over grids of global extent, using Oscar Colombo's (1981) algorithms.

For more information, please visit the following website

http://earth-info.nga.mil/GandG/wgs84/gravitymod/new_egm/new_egm.html

But I need to help run this program .... who wants to help, please send me a message