4917=GEOCCS["ITRF96",DATUM["International_Terrestrial_Reference_Frame_1996",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[24.54,-36.43,-68.12,-2.7359,-2.0431,0.3731,6.901]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Geocentric X",OTHER],AXIS["Geocentric Y",OTHER],AXIS["Geocentric Z",NORTH],AUTHORITY["EPSG","4917"]]