63
Commands
IRL Modified Airy 506, -122, 611 Ireland 1965
KEA Modified Everest -11, 851, 5 Kertau 1948 (West Malaysia, Singapore)
LIB Clarke 1880 -90, 40, 88 Liberia 1964
LUZ Clarke 1866 -133, -77, -51 Luzon (Philippines excluding MindanoaIs.)
MAS Bessel 1841 639, 405, 60 Massawa (Eritrea, Ethiopia)
MER Clarke 1880 31, 146, 47 Merchich (Morocco)
MIN Clarke 1880 -92, -93, 122 Minna (Nigeria)
NAC Clarke 1866 -8, 160, 176 NAD27 N. American CONUS 1927 (North
America)
NAD Clarke 1866 -5, 135, 172 AK27 N. American Alaska 1927 (Alaska)
NAE Clarke 1866 -10, 158, 187 CAN27 N. American Canada 1927 (Canada
including Newfoundland Island)
NAH Clarke 1880 -231, -196, 482 Nahrwan (Saudi Arabia)
NAN Clarke 1866 -6, 127, 192 Central America (Belize, Costa Rica, El Salvador,
Guatemala, Honduras, Nicaragua, Mexico)
NAR GRS1980 0, 0, 0 GRS80 North American 1983
OEG Helmert 1906 -130, 110, -13 Old Egyptian
OGB Airy 1830 375, -111, 431 OSG Ordnance Survey of Great Britain 1936
(England, Isle of Main Scotland, Shetland Islands,
Wales)
OHA Clarke 1866 61, -285, -181 OLDHW Old Hawaiian
PIT International 1924 185, 165, 42 Pitcairn Astro 1967 (Pitcairn Island)
QAT International 1924 -128, -283, 22 Qatar National (Qatar)
QUO International 1924 164, 138, -189 Qornoq (South Greenland)
SAN S. American 1969 -57, 1, -41 SAMER69 S. American 1969 (Argentina, Bolivia,
Brazil, Chile, Colombia, Ecuador, Guyan, Peru,
Paraguay, Venezuela, Trinidad, Tobago)
SCK Bessel 1841
Namibia
616, 97, -251 Schwarzeck (Namibia)
TIL Everest -689, 691, -46 Timbalai 1948 (Brunei, East Malaysia, Sarawak,
Sabah)
TOY Bessel 1841 -128, 481, 664 Tokyo (Japan, Korea, Okinawa)
USR User Defined user defined User defined
Table 4.13. Predefined Datums and Associated Reference Ellipsoids (Continued)
Datum ID
Reference
Ellipsoid
Offset in meters
(dX,dY,dZ)
Datum Description
G12RevD.book Page 63 Tuesday, April 2, 2002 4:33 PM
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