The table shows the supported Datums.

Datum	Description
WGS_84	Used by the global GPS system.
ETRS_89	Datum used by many European countries. Very simular to WGS_84.
OSGB_36	Used in Great Britain.
CH_1903_PLUS	Used in Switzerland.
RT_90	Used in Sweden.
IRELAND_65	Used on Ireland.
FINLAND_HAYFORD	Used in Finland.
LUREF	Used in Luxembourg.
WGS_72	Global geocentric datum.
AGD_84	Australian Geodetic Datum.
GDA_94	Geodetic Datum of Australia. Almost identical to WGS84.
MGI	Used in Austria. Aka "Hermannskugel".
NZGD_49	New Zealand Geodetic Datum 1949.
NZGD_2000	New Zealand Geodetic Datum 2000. Almost identical to WGS84.
NTF	Used in France.
BD_72	Belgium 1972.
ED_50	European Datum 1950. Used in France, Germany, Denmark, etc.
DHDN_RAUENBERG	Also known as Potsdam. Used in Germany.
NAD_83	Used in North America.
NAD_27_US_ALASKA	Used in Alaska.
NAD_27_US_EAST	Used in the U.S.
NAD_27_US_CONUS	Used in the U.S.
NAD_27_US_WEST	Used in the U.S.
AMERSFOORT	Used in the Netherlands.
ROME_40	Used in Italy.
NGO_48	Used in Norway.
ED_50_DENMARK	ED50 Denmark (Teknisk Datum 50).