| Maptitude GISDK Help |
The following table lists the ellipsoids used by common datums. You can use the table as a cross reference, to look up the ellipsoid used by Maptitude based on the datum:
| Datum Name | Datum Abbreviation | Ellipsoid | Prime Meridian | Offset from Greenwich | Area of Use |
|---|---|---|---|---|---|
| Adindan | clrk80RGS | Greenwich | Burkina Faso, Cameroon, Ethiopia, Mali, Senegal, Sudan | ||
| Afgooye | krass | Greenwich | Somalia | ||
| Agadez | clrk80IGN | Greenwich | Niger | ||
| Ain el Abd 1970 | Ain el Abd | intl | Greenwich | Bahrain Island | |
| American Samoa 1962 | clrk66 | Greenwich | American Samoa | ||
| Amersfoort | bessel | Greenwich | Netherlands | ||
| Ancienne Triangulation Francaise | ATF | plessis | Paris | 2.337229 | France |
| Anna 1 Astro 1965 | aust_SA | Greenwich | Cocos Islands | ||
| Antarctica | clrk80 | Greenwich | Antartica | ||
| Antigua Island Astro 1943 | clrk80 | Greenwich | Antigua, Leeward Islands | ||
| Aratu | intl | Greenwich | Brazil - south of 2d55'S | ||
| Arc 1950 | clrk80 | Greenwich | Africa - south and east | ||
| Arc 1960 | clrk80RGS | Greenwich | Africa - east | ||
| Ascension Island 1958 | intl | Greenwich | Ascension Island | ||
| Astro B4 Sorol Atoll | intl | Greenwich | Tern Island | ||
| Astro Beacon 'E' 1945 | intl | Greenwich | Iwo Jima Island | ||
| Astro DOS 71/4 | intl | Greenwich | St. Helena Island | ||
| Astronomic Station 1952 | intl | Greenwich | Marcus Island | ||
| Australian Geodetic Datum 1966 | AGD66 | aust_SA | Greenwich | Australia and Tasmania Island | |
| Australian Geodetic Datum 1984 | AGD84 | aust_SA | Greenwich | Australia and Tasmania Island | |
| Average Terrestrial System 1977 | ATS77 | ATS77 | Greenwich | Canada - New Brunswick | |
| Ayabelle Lighthouse | clrk80 | Greenwich | Dijibouti | ||
| Barbados | clrk80RGS | Greenwich | Barbados | ||
| Batavia [Djakarta] | bessel | Jakata | 106.807719 | Sumatra Island (Indonesia) | |
| Beduaram | clrk80IGN | Greenwich | Niger | ||
| Beijing 1954 | krass | Greenwich | China | ||
| Bellevue (IGN) | intl | Greenwich | Efate and Erromango Islands | ||
| Bermuda 1957 | clrk66 | Greenwich | Bermuda Islands | ||
| Bern 1898 | bessel | Bern | 7.439583 | Liechtenstein, Switzerland | |
| Bern 1938 | bessel | Greenwich | Liechtenstein, Switzerland | ||
| Bern CH-1903 | bessel | Switzerland | |||
| Betio Island 1966 | intl | Greenwich | Betio Island | ||
| Bissau | intl | Greenwich | Guinea-Bissau | ||
| Bogota Observatory | intl | Bogota | -74.080917 | Colombia | |
| Bukit Rimpah | bessel | Greenwich | Indonesia - Banga & Belitung Islands | ||
| Camacupa | clrk80RGS | Greenwich | Angola | ||
| Camp Area Astro | intl | Greenwich | Antartica, McMurdo Camp Area | ||
| Campo Inchauspe | intl | Greenwich | Argentina | ||
| Canton Astro 1966 | intl | Greenwich | Phonenix Islands | ||
| Cape | clrk80RGS | Greenwich | South Africa | ||
| Cape Canaveral | clk66 | Greenwich | Florida and Bahama Islands | ||
| Carthage | clrk80IGN | Greenwich | Tunisia | ||
| Chatham Island Astro 1971 | intl | Greenwich | Chatham Island (New Zealand) | ||
| CHTRS | GRS80 | Greenwich | Switzerland | ||
| Chua Astro | intl | Greenwich | Paraguay | ||
| Conakry 1905 | clrk80IGN | Greenwich | Guinea | ||
| Corrego Alegre | intl | Greenwich | Brazil | ||
| Cote d'Ivoire | clrk80IGN | Greenwich | Cote d'Ivoire | ||
| Dabola | clrk80 | Greenwich | Guinea | ||
| Datum 73 | intl | Greenwich | Portugal | ||
| Dealul Piscului 1933 | intl | Greenwich | Romania | ||
| Dealul Piscului 1970 | krass | Greenwich | Romania | ||
| Deception Island | clrk80 | Greenwich | Deception Island | ||
| Deir ez Zor | clrk80IGN | Greenwich | Syria | ||
| Deutsche Hauptdreiecksnetz | DHDN | bessel | Greenwich | Germany | |
| Donard 1965 | mod_airy | Greenwich | Ireland | ||
| DOS 1968 | intl | Greenwich | Gizo Island (New Georgia Islands) | ||
| Douala | clrk80IGN | Greenwich | Cameroon | ||
| DXZ78 | Greenwich | China | |||
| DXZ88 | Greenwich | China | |||
| Easter Island 1967 | intl | Greenwich | Easter Island | ||
| Egypt 1907 | helmert | Greenwich | Egypt | ||
| ETRS89 | GRS80 | Greenwich | Estonia, Lithuania | ||
| European 1987 (ED 87) | intl | Greenwich | Europe | ||
| European Datum 1950 | ED50 | intl | Greenwich | Europe, Middle East, North Africa | |
| European Datum 1987 | ED87 | intl | Greenwich | Austria, Finland, Netherlands, Norway, Spain, Sweden, Switzerland | |
| European Reference System 1989 | EUREF89 | WGS84 | Greenwich | Europe | |
| Fahud | clrk80RGS | Greenwich | Oman | ||
| Fort Thomas | clrk80 | Greenwich | Nevis, St. Kitts (Leward Islands) | ||
| Gandajika 1970 | intl | Greenwich | Republic of Maldives | ||
| Garoua | clrk80IGN | Greenwich | Cameroon | ||
| Geocentric Datum of Australia 1994 | GDA94 | GRS80 | Greenwich | Australia | |
| Geodetic Reference System 1967 | GRS67 | Greenwich | Worldwide | ||
| Geodetic Reference System 1980 | GRS80 | Greenwich | Worldwide | ||
| Ghana | war_off | Greenwich | Ghana | ||
| Graciosa Base SW 1948 | intl | Greenwich | Azores-Faial, Graciosa, Pico, Sao Jorge, Terceira | ||
| Greek | bessel | Athens | 23.716336 | Greece | |
| Greek Geodetic Reference System | GGRS87 | GRS80 | Greenwich | Greece | |
| Guam 1963 | clrk66 | Greenwich | Guam, Marianas Islands | ||
| Gunung Segara | bessel | Greenwich | Indonesia - Kalimantan | ||
| GUX 1 Astro | intl | Greenwich | Guadalcanal Island | ||
| Guyane Francaise | intl | Greenwich | French Guyana | ||
| Herat North | intl | Greenwich | Afghanistan | ||
| Hito XVIII 1963 | intl | Greenwich | South Chili (near 53S) | ||
| Hjorsey 1955 | intl | Greenwich | Iceland | ||
| Hong Kong 1963 | intl | Greenwich | Hong Kong | ||
| Hu Tzu Shan | intl | Greenwich | Taiwan | ||
| Hungarian Datum 1972 | HD72 | GRS67 | Greenwich | Hungary | |
| Iben Astro 1947 | clrk66 | Greenwich | |||
| Indian | evrst30 | Greenwich | Bangladesh, Bhutan | ||
| Indian | evrst56 | Greenwich | India, Nepal, Pakistan | ||
| Indian 1954 | evrst30 | Greenwich | Myanmar, Thailand | ||
| Indian 1960 | evrst30 | Greenwich | Con Son Island, Vietnam | ||
| Indian 1975 | evrst30 | Greenwich | Thailand and Vietnam | ||
| Indonesian Datum 1974 | ID74 | indon | Greenwich | Padang | |
| Ireland 1965 | mod_airy | Greenwich | Ireland | ||
| Isle Socorro Astro | clrk66 | Greenwich | |||
| ISTS 061 Astro 1968 | intl | Greenwich | South Georgia Islands | ||
| ISTS 073 Astro 1969 | intl | Greenwich | Diego Garcia | ||
| Jamaica 1875 | clrk80o | Greenwich | Jamaica | ||
| Jamaica 1969 | JAD69 | clrk66 | Greenwich | Jamaica | |
| Johnston Island 1961 | intl | Greenwich | Johnston Island | ||
| Kalianpur | evrst56 | Greenwich | India, Pakistan | ||
| Kandawala | evrst30 | Greenwich | Sri Lanka | ||
| Kartastokoordinaattijarjestelm | KKJ | intl | Greenwich | Finland | |
| Kerguelen Island | intl | Greenwich | Kerguelen Island | ||
| Kusaie Astro 1951 | intl | Greenwich | Caroline Islands, Fed. States of Micronesia | ||
| Kertau 1948 | evrst48 | Greenwich | West Malaysia and Singapore | ||
| Kuwait Oil Company | KOC | clrk80RGS | Greenwich | Kuwait | |
| Kuwait Utility | KUDAMS | GRS80 | Greenwich | Kuwait - Kuwait City | |
| L.C. 5 Astro 1961 | clrk66 | Greenwich | Cayman Brac Island | ||
| La Canoa | intl | Greenwich | Venezuela | ||
| Lake | intl | Greenwich | Venezuela - Lake Maracaibo area | ||
| Leigon GCS 121 | clrk80RGS | Greenwich | Ghana | ||
| Liberia 1964 | clrk80RGS | Greenwich | Liberia | ||
| Lisbon | DLx | intl | Lisbon | -9.131906 | Portugal |
| LKS1992 | GRS80 | Greenwich | Latvia | ||
| Loma Quintana | intl | Greenwich | Venezuela - north | ||
| Lome | clrk80IGN | Greenwich | Togo | ||
| Luzon 1911 | clrk66 | Greenwich | Philippines | ||
| Macau | intl | Greenwich | Macau | ||
| Mahe 1971 | clrk80RGS | Greenwich | Mahe Island | ||
| Makassar | bessel | Jakarta | 106.807719 | Indonesia - south west Sulawesi | |
| Malongo 1987 | intl | Greenwich | Angola - Cabinda | ||
| Manoca | clrk80RGS | Greenwich | Cameroon | ||
| Marco Astro | intl | Greenwich | Salvage Islands | ||
| Massawa | bessel | Greenwich | Eritrea (Ethiopia) | ||
| Melrica 1973 (D73) | intl | Greenwich | Portugal | ||
| Merchich | clrk80IGN | Greenwich | Morocco | ||
| Mhast | intl | Greenwich | Angola - Cabinda | ||
| Midway Astro 1961 | intl | Greenwich | Midway Island | ||
| Militar-Geographische Institut | MGI | bessel | Ferro | -17.666667 | Austria |
| Minna | clrk80RGS | Greenwich | Cameroon, Nigeria | ||
| Monte Mario | intl | Rome | 12.452333 | Italy | |
| Montserrat Island Astro 1958 | clrk80 | Greenwich | Montserrat (Leeward Islands) | ||
| M'poraloko | clrk80IGN | Greenwich | Gabon | ||
| NAD Michigan | clrk66mi | Greenwich | Michigan | ||
| Nahrwan 1967 | clrk80RGS | Greenwich | Oman, United Arab Emirates, Saudi Arabia | ||
| Naparima 1972 | intl | Greenwich | Trinidad and Tobago | ||
| National Geodetic Network | NGN | WGS84 | Greenwich | Kuwait | |
| Netherlands | bessel | Greenwich | Netherlands | ||
| New Zealand Geodetic Datum 1949 | GD49 | intl | Greenwich | New Zealand | |
| NGO 1948 | bess_mod | Greenwich | Norway | ||
| Nord de Guerre | NDG | plessis | Paris | 2.337229 | France - Alsace |
| Nord Sahara 1959 | clrk80IGN | Greenwich | Algeria, Morocco, Tunisia | ||
| North American Datum 1927 | NAD27 | clrk66 | Greenwich | North America, Central America, Caribbean | |
| North American Datum 1983 | NAD83 | GRS80 | Greenwich | North America, Central America | |
| Nouvelle Triangulation Francaise | NTF | clrk80IGN | Paris | 2.337229 | France |
| NSWC 9Z-2 | WGS66 | Greenwich | World | ||
| NWGL 10 | WGS72 | Greenwich | |||
| Observatorio 1966 | intl | Greenwich | Corvo and Flores Islands (Azores) | ||
| Old Bavarian | bessel | Greenwich | Germany | ||
| Old Hawaiian | clrk66 | Greenwich | Hawaii | ||
| Oman | clrk80 | Greenwich | Oman | ||
| Ordnance Survey of Great Britain 1936 | OSGB36 | airy | Greenwich | England, Isle of ManScotland, Shetlands Islands, Wales | |
| Ordnance Survey of Great Britain 1970 (SN) | OSGB70 | airy | Greenwich | United Kingdom - Great Britain | |
| OS (SN) 1980 | OS(SN)80 | airy | Greenwich | United Kingdom - Great Britain | |
| Oslo | NGO1948 | Greenwich | Norway | ||
| Padang 1884 | Padang | bessel | Jakarta | 106.807719 | Indonesia - Sumatra |
| Palestine 1923 | clrk80ben | Greenwich | Jordan, Lebanon | ||
| Pico de las Nieves | intl | Greenwich | Canary Islands | ||
| Pitcairn Astro 1967 | intl | Greenwich | Pitcairn Island | ||
| Point 58 | clrk80 | Greenwich | Burkina Faso & Niger | ||
| Pointe Noire 1948 | clrk80IGN | Greenwich | Congo | ||
| Porto Santo 1936 | intl | Greenwich | Porto Santo, Madeira Islands | ||
| Potsdam | bessel | Greenwich | Austria, West Germany, Slovenia, Yugoslavia | ||
| Provisional South American Datum 1956 | PSAD56 | intl | Greenwich | Bolivia, Chile, Colombia, Ecuador, Guyana, Peru, Venezuela | |
| Puerto Rico | intl | Greenwich | Puerto Rico and Virgin Islands | ||
| Pulkovo 1942 | krass | Greenwich | Eastern Europe, China, Former Soviet Union, Laos, North Korea, Mongolia | ||
| Pulkovo 1995 | krass | Greenwich | Russia | ||
| Qatar | intl | Greenwich | Qatar | ||
| Qatar 1948 | helmert | Greenwich | Qatar | ||
| Qornoq | intl | Greenwich | South Greenland | ||
| Rauenberg | bessel | Greenwich | Germany | ||
| Reseau National Belge 1950 | Belge 1950 | intl | Brussels | 4.367975 | Belgium |
| Reseau National Belge 1972 | Belge 1972 | intl | Greenwich | Belgium | |
| Reunion | intl | Greenwich | Mascarene Island | ||
| Riga | bessel | Greenwich | |||
| Rikets Triangulering 1990 | bessel | Greenwich | |||
| Rome 1940 | intl | Greenwich | Sardinia Island | ||
| RT1990 | bessel | Greenwich | Sweden | ||
| S-JTSK | bessel | Greenwich | Czech, Slovakia | ||
| Santo (DOS) 1965 | intl | Greenwich | Esprito Santo Island | ||
| Sao Braz | intl | Greenwich | Sao Miguel,Santa Maria Islands (Azores) | ||
| Sapper Hill 1943 | intl | Greenwich | East Falkland Island | ||
| Schwarzeck | bess_nam | Greenwich | Namibia | ||
| Segora | bessel | Greenwich | Indonesia - southeast Kalimantan | ||
| Selvagem Grande | intl | Greenwich | Salvage Island | ||
| Serindung | bessel | Greenwich | Indonesia - east Kalimantan | ||
| Sierra Leone 1960 | clrk80RGS | Greenwich | Sierra Leone | ||
| South American Datum 1969 | SAD69 | GRS67 | Greenwich | Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Venezuela, Trindad, and Tobago | |
| South Asia | fschr60m | Greenwich | Singapore | ||
| Southeast Base | intl | Greenwich | Porto Santo and Madeira Islands | ||
| Southwest Base | intl | Greenwich | Faial,Graciosa,Pico,Sao Jorge,Terceira Islands (Azores) | ||
| Soviet Geodetic System 1985 | SGS85 | SGS85 | Greenwich | Former Soviet Union | |
| Soviet Geodetic System 1990 | SGS90 | SGS85 | Greenwich | Former Soviet Union | |
| Stockholm 1938 | RT38 | bessel | Greenwich | Sweden | |
| Sudan | clrk80IGN | Greenwich | Sudan - south | ||
| Swallow Islands | intl | Greenwich | |||
| System 1932 | bessel | Greenwich | |||
| System 1942 | krass | Greenwich | |||
| Tananarive Observatory 19 25 | Tananarive | intl | Paris | 2.337229 | Malagasy Republic |
| Timbalai 1948 | evrstSS | Greenwich | Brunei and East Malaysia (Sarawak and Sabah) | ||
| TM65 | mod_airy | Greenwich | Ireland, United Kingdom - Ulster | ||
| TM75 | mod_airy | Greenwich | Ireland, United Kingdom - Ulster | ||
| Tokyo | bessel | Greenwich | Japan, South Korea, Okinawa | ||
| Trinidad 1903 | clrk58 | Greenwich | Trinidad | ||
| Tristan Astro 1968 | intl | Greenwich | Tristan da Cunha | ||
| Trucial Coast 1948 | TC(1948) | helmert | Greenwich | United Arab Emirates | |
| Viti Levu 1916 | clrk80 | Greenwich | Viti Levu Island (Fiji Islands) | ||
| Voirol 1875 | clrk80IGN | Paris | 2.337229 | Algeria, Tunisia | |
| Voirol Unifie 1960 | Voirol Unifi | clrk80IGN | Paris | 2.337229 | Algeria - north of 32deg N |
| Wake Island Astro 1952 | intl | Greenwich | Wake atoll | ||
| Wake-Eniwetok 1960 | hough | Greenwich | Marshall Islands | ||
| WGS 72 Transit Broadcast Ephemeris | WGS 72BE | WGS72 | Greenwich | Worldwide | |
| World Geodetic System 1960 | WGS60 | Greenwich | Worldwide | ||
| World Geodetic System 1966 | WGS66 | Greenwich | Worldwide | ||
| World Geodetic System 1972 | WGS72 | Greenwich | Worldwide | ||
| World Geodetic System 1984 | WGS84 | Greenwich | Worldwide | ||
| Yacare | intl | Greenwich | Uruguay | ||
| Xian 1980 | IAG75 | Greenwich | China | ||
| Yoff | clrk80IGN | Greenwich | Senegal | ||
| Zanderij | intl | Greenwich | Surinam |
| ©2025 Caliper Corporation | www.caliper.com |