NAME: mag2geo.pro PURPOSE: Convert from geomagnetic to geographic coordinates CALLING SEQUENCE: mag2geo, time, data_in, data_out INPUT: data_in = an [n,3] element array of position data in km and in MAG coordinates KEYWORD INPUTS: None OUTPUT: data_in = an [n,3] element array of position data in km in newly transformed GEO coordinates EXAMPLE: IDL> geo2mag, data_in data_out NOTES: The algorithm and rotational matrices were developed by Pascal Saint-Hilaire (Saint-Hilaire@astro.phys.ethz.ch), May 2002 MODIFICATION HISTORY: