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DATUM_NAMEDATUM_TYPEORIGIN_DESCRIPTIONREALIZATION_EPOCHREMARKSINFORMATION_SOURCE
Mean Sea Levelverticalmsl has geographic and temporal components. Users are advised to not use this generic vertical datum but to define specific instances of msl based on knowledge of these components; for instance 'msl at xxx during 19yy'.
Ordnance Datum NewlynverticalOrdnance Survey of Great Britain
National Geodetic Vertical Datum 1929vertical26 tide gauges in the US and Canada.1929
North American Vertical Datum 1988verticalFather's Point, Rimouski, Quebec.1988
Yellow Sea 1956vertical2 years tide readings at Qingdao.1956Superseded by Yellow Sea 1985 datum.
Baltic SeaverticalAverage water level at Kronshtadt
Caspian SeaverticalDefined as -28.0m Baltic datum
Nivellement general de la FranceverticalMean sea level at MarseilleThe CNIG states that NGF is a general term applying to all vertical network readjustments of France and recommends more specific terminology. See codes 5118-5120.Conseil National de l'Information Geographique groupe de travail 'Reseaux de Nivellement' recommendations v5.1 April 1994.
Normaal Amsterdams PeilverticalNederlandse Commissie voor Geodesie publication 30; 1993
OostendeverticalMean low water during 19581958Nederlandse Commissie voor Geodesie publication 30; 1993
Australian Height DatumverticalMSL 1966-68 at 30 gauges around coast.1968http://www.auslig.gov.au/geodesy
Australian Height Datum (Tasmania)verticalMSL 1972 at Hobart and Burnie.1972
Sea LevelverticalAn unspecified local vertical datum not recommended for use.
Canadian Vertical Datum of 1928vertical1928
Piraeus Harbour 1986verticalMSL determined during 1986.1986Geodesy Department; Public Pertoleum Corporation of Greece
Helsinki 1960verticalMSL at Helsinki during 1960.1960www.nls.fi/maa/papers/kkj.html
Rikets hojdsystem 1970vertical1970National Land Survey of Sweden
Nivellement general de la France - LalleverticalMean sea level at Marseille.Conseil National de l'Information Geographique groupe de travail 'Reseaux de Nivellement' recommendations v5.1 April 1994.
Nivellement general de la France - IGN69verticalMean sea level at Marseille.1969Normal heights.Conseil National de l'Information Geographique groupe de travail 'Reseaux de Nivellement' recommendations v5.1 April 1994.
Nivellement general de la France - IGN78verticalMean Sea Level Ajaccio1978Normal heights.Conseil National de l'Information Geographique groupe de travail 'Reseaux de Nivellement' recommendations v5.1 April 1994.
MaputoverticalMean sea level at Maputo.Direcção Nacional de Geografia e Cadastral (DINAGECA).
Japanese Standard Levelling Datum 1949vertical24.4140 metres above mean sea level Tokyo Bay.1949Ministry of Construction; Japan. http://vldb.gsi.go.jp/sokuchi/datum/tokyodatum.html
PDO Height Datum 1993vertical1993Misclosure between Muscat and Salalah less than .5 meters with differences from of up to 5 meters from old Fahud Datum. The PHD93 adjustment was initially known as the Spine. Supercedes Fahud Vertical Datum (Code 5124) from 1993.Petroleum Development Oman
Fahud Height DatumverticalSuperceded by PHD93 Datum (Code 5123) in 1993. Based on reciprocal trigonometric heighting based on single MSL determination at Mina Al Fahal.Petroleum Development Oman
Ha Tien 1960vertical1960In Vietnam replaced by Hon Dau in 1992.
Hon Dau 1992vertical1992Supersedes Ha Tien in Vietnam.
Landesnivellement 1902verticalOrigin at Repere Pierre du Niton (RPN) 373.6 metres above msl derived at Marseille.1902Bundesamt für Landestopographie
Landeshohennetz 1995verticalOrigin at Repere Pierre du Niton (RPN) 373.6 metres above msl derived at Marseille.1995Bundesamt für Landestopographie
European Vertical Reference Frame 2000verticalGeopotential number at Normaal Amsterdams Peil is zero.2000Realised by geopotential numbers and normal heights of the United European Levelling Network.
Malin HeadverticalMean sea level between January 1960 and December 1969.1970Ordnance Survey of Ireland
Belfast LoughverticalMean sea level between 1951 and 1956 at Clarendon Dock, Belfast.1957Malin Head (datum code 5130) used for 1:50,000 and smaller mapping.Ordnance Survey of Northern Ireland
Dansk Normal NulverticalKort & Matrikelstyrelsen
AIOC 1995verticalAverage level of Caspian Sea at the Oil Rocks tide gauge June-September 1995.1995AIOC 1995 datum is 1.7m above Caspian datum and 26.3m below Baltic datum.BP
Black SeaverticalBlack Sea datum is 0.4m below Baltic datum.BP
Hong Kong Principal Datumvertical1.23m below the mean of 19 years (1965-83) observations of tide levels at North Point, Victoria Harbour.1980Survey and Mapping Office, Lands Department. Http://www.info.gov.hk/landsd/mapping/tindex.htm
Hong Kong Chart DatumverticalApproximates to Lowest Astronomic Tide level (LAT).Chart datum is 0.15 metres below Hong Kong Principal Datum (code 5135) and 1.38m below MSL at Quarry Bay.Survey and Mapping Office, Lands Department. Http://www.info.gov.hk/landsd/mapping/tindex.htm
Yellow Sea 1985vertical20 years tide readings at Qingdao.1985Supersedes Yellow Sea 1956 datum.Guangdong Province Land Resource Information Centre
Ordnance Datum Newlyn (Orkney Isles)verticalConnected to Newlyn datum by triangulation from the British mainland.Ordnance Survey of Great Britain
Fair IsleverticalOrdnance Survey of Great Britain
LerwickverticalOrdnance Survey of Great Britain
FoulaverticalOrdnance Survey of Great Britain
Sule SkerryverticalOrdnance Survey of Great Britain
North RonaverticalOrdnance Survey of Great Britain
StornowayverticalOrdnance Survey of Great Britain
St. KildaverticalOrdnance Survey of Great Britain
Flannan IslesverticalOrdnance Survey of Great Britain
St. MarysverticalOrdnance Survey of Great Britain
DouglasverticalOrdnance Survey of Great Britain
FaoverticalEstablished by Hunting Surveys for IPC. Superseded by Bandar Abbas (code 5150). At time of record creation NIOC data in Ahwaz area still usually referenced to Fao.National Iranian Oil Company (NIOC).
Bandar AbbasverticalAverage sea level at Bandar Abbass 1995-2001.2001Supersedes Fao (code 5149).National Cartographic Centre of Iran
Nivellement General Nouvelle CaledonieverticalService Topographique de la Nouvelle Caledonie.
PoolbegverticalLow water mark of the spring tide on the 8 April 1837 at Poolbeg Lighthouse, Dublin.1837Superseded by Belfast Lough and Malin Head (datum codes 5130-31).'The Irish Grid - A Description of the Co-ordinate Reference System' published by Ordnance Survey of Ireland, Dublin and Ordnance Survey of Northern Ireland, Belfast.
Nivellement General Guyanais 1977verticalNormal heights.IGN Paris
IGN 1987verticalIGN Paris
IGN 1988verticalIGN Paris
IGN 1989verticalIGN Paris
Not specified (based on Airy 1830 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Airy Modified 1849 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Australian National Spheroid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Bessel 1841 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Bessel Modified ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Bessel Namibia ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Clarke 1858 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Clarke 1866 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Clarke 1866 Michigan ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Clarke 1880 (Benoit) ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Clarke 1880 (IGN) ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Clarke 1880 (RGS) ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Clarke 1880 (Arc) ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Clarke 1880 (SGA 1922) ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Everest 1830 (1937 Adjustment) ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Everest 1830 (1967 Definition) ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Everest 1830 Modified ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on GRS 1980 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Helmert 1906 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Indonesian National Spheroid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on International 1924 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Krassowsky 1940 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on NWL 9D ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Plessis 1817 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Struve 1860 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on War Office ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on WGS 84 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on GEM 10C ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on OSU86F ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on OSU91A ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Clarke 1880 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Authalic Sphere)geodeticIncluded for coordinate reference systems where datum is unknown. Deprecated and superseded by 6047.EPSG
Not specified (based on GRS 1967 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Average Terrestrial System 1977 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Everest (1830 Definition) ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on WGS 72 ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Everest 1830 (1962 Definition) ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on Everest 1830 (1975 Definition) ellipsoid)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
Not specified (based on GRS 1980 Authalic Sphere)geodeticIncluded for coordinate reference systems where datum is unknown.EPSG
GreekgeodeticFundamental point: Athens Observatory; latitude 37 deg 58 min 20.132 sec N; longitude 23 deg 42 min 58.815 sec E of GreenwichSee geodetic datum alias 6404. Used as basis of topographic mapping based on Hatt projection.Topography Department; National Technical University of Athens
Greek Geodetic Reference System 1987geodeticFundamental point: Dionysos; latitude 38 deg 04 min 33.8 sec N; longitude 23 deg 55 min 51.0 sec E of Greenwich; geoid height 7.0 m.1987Superseded (old) Greek datum. Oil industry work based on ED50.L. Portokalakis; Public Petroleum Corporation of Greece
Average Terrestrial System 1977geodetic1977In use from 1979. To be phased out in late 1990's.New Brunswick Geographic Information Corporation land and water information standards manual.
Kartasto Koordinaati Jarjestelma 1966geodeticAdjustment with fundamental point SF31 based on ED50 transformed to best fit the older VVJ adjustment.1966Adopted in 1970.www.nls.fi/maa/papers/kkj.html
Rikets koordinatsystem 1990geodetic1982Supersedes RT38 adjustment (datum code 6308)National Land Survey of Sweden
SambojageodeticOriginal origin station P2 Exc now destroyed. Extensions recomputed using Toran station T9 as origin.Total Indonesia.
Lithuania 1994 (ETRS89)geodeticConstrained to 4 ETRS89 points in Lithuania from the EUREF Baltic 1992 campaign..1994Densification of ETRS89 during the 1992 Baltic campaign.HNIT-Baltic GeoInfoServisas
TetegeodeticFundamental point: Tete.Mozambique Direcção Nacional de Geografia e Cadastral (DINAGECA).
MadzansuageodeticFundamental point: Madzansua.Superseded by transformation to Tete datum (datum code 6127).Mozambique Direcção Nacional de Geografia e Cadastral (DINAGECA).
ObservatariogeodeticFundamental point: Maputo observatory.Superseded by transformation to Tete datum (datum code 6127).Mozambique Direcção Nacional de Geografia e Cadastral (DINAGECA).
Moznet (ITRF94)geodeticITRF 1994 epoch 20Mozambique Direcção Nacional de Geografia e Cadastral (DINAGECA).
Indian 1960geodeticDMA extension over IndoChina of the Indian 1954 network adjusted to better fit local geoid.Also known as Indian (DMA Reduced).
Final Datum 1958geodeticFundamental point: Maniyur. Latitude: 31 deg 23 min 59.19 sec N; Longitude: 48 deg 32 min 31.38 sec E (of Greenwich).Network included in Nahrwan 1967 adjustment.IOEPC records
Estonia 1992geodeticDensification from 4 ETRS89 points.1992Based on ETRS89 as established during the 1992 Baltic campaign. Superseded by Estonia 1997 adjustment (code 6180).http://www.geo.ut.ee/~raivo/estcoord.html
PDO Survey Datum 1993geodeticAdjustment best fitted to Fahud network.1993Supersedes Fahud datum (code 6232). Maximum differences to Fahud adjustment are 20 metres.Petroleum Development Oman
Old HawaiiangeodeticFundamental point: Oahu West Base Astro. Latitude: 21 deg 18 min 13.89 sec N; longitude 157 deg 50 min 55.79 sec W (of Greenwich)Hawaiian Islands were never on NAD27 but rather on Old Hawaiian Datum. NADCON conversion program provides transformation from Old Hawaiian Datum to NAD83 (original 1986 realization) but making the transformation appear to user as if from NAD27.http://www.ngs.noaa.gov/ (NADCON readme file) and the NIMA publication http://164.214.2.59/publications/guides/Datum_Pamphlet/datum.html
St. Lawrence IslandgeodeticMany Alaskan islands were never on NAD27 but rather on independent datums. NADCON conversion program provides transformation from St. Lawrence Island Datum to NAD83 (original 1986 realization) - making the transformation appear to user as if from NAD27.http://www.ngs.noaa.gov/ (NADCON readme file)
St. Paul IslandgeodeticFundamental point latitude: 57 deg 07 min 16.86 sec N; longitude: 170 deg 16 min 24.00 sec W (of Greenwich).Many Alaskan islands were never on NAD27 but rather on independent datums. NADCON conversion program provides transformation from St. Paul Island Datum to NAD83 (original 1986 realization) - making the transformation appear to user as if from NAD27.http://www.ngs.noaa.gov/ (NADCON readme file)
St. George IslandgeodeticFundamental point latitude: 56 deg 36 min 11.31 sec N; longitude: 169 deg 32 min 36.00 sec W (of Greenwich).Many Alaskan islands were never on NAD27 but rather on independent datums. NADCON conversion program provides transformation from St. George Island Datum to NAD83 (original 1986 realization) - making the transformation appear to user as if from NAD27.http://www.ngs.noaa.gov/ (NADCON readme file)
Puerto RicogeodeticFundamental point: Cardona Island Lighthouse. Latitude:17 deg 57 min 31.40 sec N; Longitude: 66 deg 38 min 07.53 sec W (of Greenwich).1901NADCON conversion program provides transformation from Puerto Rico Datum to NAD83 (original 1986 realization) but making the transformation appear to user as if from NAD27.Ordnance Survey of Great Britain and http://www.ngs.noaa.gov/ (NADCON readme file).
NAD83 Canadian Spatial Reference Systemgeodetic1998Supersedes ATS77 from 1999 in New Brunswick.Service New Brunswick Land and Information Standards Manual
IsraelgeodeticFundamental point: Latitude: 31 deg 44 min 03.817 sec N; Longitude: 35 deg 12 min 16.261 sec E (of Greenwich).Survey of Israel.
Locodjo 1965geodeticFundamental point: T5 Banco. Latitude: 5 deg 18 min 50.5 sec N; Longitude: 4 deg 02 min 05.1 sec W (of Greenwich).1965IGN Paris.
Abidjan 1987geodeticFundamental point: Abidjan I. Latitude: 5 deg 18 min 51.01 sec N; Longitude: 4 deg 02 min 06.04 sec W (of Greenwich).1987IGN Paris.
Kalianpur 1937geodeticFundamental point: Kalianpur. Latitude: 24 deg 07 min 11.260 sec N; Longitude: 77 deg 39 min 17.570 sec E (of Greenwich).1937Supersedes 1880 adjustment except for topographic mapping. Superseded in Pakistan by 1962 metrication conversion and in India by 1975 metrication conversion.G. Bomford; 'The Re-adjustment of the Indian Triangulation'; Survey of India Professional Paper 28; 1939.
Kalianpur 1962geodeticFundamental point: Kalianpur. Latitude: 24 deg 07 min 11.260 sec N; Longitude: 77 deg 39 min 17.570 sec E (of Greenwich).19621937 adjustment rescaled by ratio metric conversions of Indian foot (1937) to Indian foot (1962).
Kalianpur 1975geodeticFundamental point: Kalianpur. Latitude: 24 deg 07 min 11.260 sec N; Longitude: 77 deg 39 min 17.570 sec E (of Greenwich).19751937 adjustment rescaled by ratio metric conversions of Indian foot (1937) to Indian foot (1975).
Hanoi 1972geodetic1972PetroVietnam
Hartebeesthoek94geodeticCoincident with ITRF91 (1994.0) at Hartebeesthoek astronomical observatory near Pretoria.1994Supersedes Cape datum (code 6222).Directorate of Surveys and Mapping; http://w3sli.wcape.gov.za/surveys/mapping/wgs84.htm
CH1903geodeticFundamental point: Old Bern observatory. Latitude: 46 deg 57 min 08.660 sec N; Longitude: 7 deg 26 min 22.500 sec E (of Greenwich).1903Bundesamt für Landestopographie
CH1903+geodeticFundamental point: Zimmerwald observatory.Bundesamt für Landestopographie. Aufbau der Landesvermessung der Schweiz 'LV95' Teil 3: Terrestrische Bezugssysteme und Bezugsrahmen. L+T 1999.
Swiss Terrestrial Reference Frame 1995geodeticETRF89 at 1993.01995Bundesamt für Landestopographie. Aufbau der Landesvermessung der Schweiz 'LV95' Teil 3: Terrestrische Bezugssysteme und Bezugsrahmen. L+T 1999.
NAD83 (High Accuracy Regional Network)geodeticNational Geodetic Survey
RassadirangeodeticFundamental point: Total1. Latitude: 27 deg 31 min 07.784 sec N; Longitude: 52 deg 36 min 12.741 sec E (of Greenwich).Total-Fina
European Datum 1950(1977)geodeticExtension of ED50 over Iran.1977Sometimes referred to as ED50-ED77.National Cartographic Centre of Iran
Dabola 1981geodetic1981IGN Paris
Jednotne Trigonometricke Site KatastralnigeodeticModification of Austrian MGI datum, code 6312.S-JTSK = System of the Unified Trigonometrical Cadastral Network.Research Institute for Geodesy Topography and Cartography (VUGTK); Prague.
Mount DillongeodeticFundamental point: Mount Dillon triangulation station. Latitude: 11 deg 15 min 07.843 sec N; Longitude: 60 deg 41 min 09.632 sec W (of Greenwich).University of the West Indies Geodetic Services.
Naparima 1955geodeticFundamental point: Naparima. Latitude: 10 deg 16 min 44.860 sec N; Longitude: 61 deg 27 min 34.620 sec W (of Greenwich).1955Naparima 1972 is an extension of the Naparima 1955 network of Trinidad to include Tobago.Ordnance Survey International.
European Libyan Datum 1979geodeticExtension of ED50 over Libya.1979Brown and Root
Chos Malal 1914geodeticChos Malal police station.1914Also known as Quini-Huao. Superseded by Campo Inchauspe (code 6221).Various oil company records.
Pampa del CastillogeodeticUsed in Comodoro Rivadavia area. Superseded by Campo Inchauspe (code 6221).Various oil company records.
Korean Datum 1985geodeticFundamental point: Suwon; latitude 37 deg 16 min 31.9034 sec N; longitude 127 deg 03 min 05.1451 sec E of Greenwich.1985Clifford J. Mugnier; in Photogrammetric Engineering & Remote Sensing November 1999. http://www.asprs.org/resources.html
Yemen National Geodetic Network 1996geodeticSana'a IGN reference marker1996IGN Paris
South YemengeodeticIGN Paris
BissaugeodeticNIMA TR8350.2
Korean Datum 1995geodetic1995NIMA TR8350.2 ftp://164.214.2.65/pub/gg/tr8350.2/changes.pdf
New Zealand Geodetic Datum 2000geodeticBased on ITRF96 at epoch 2000.02000Land Information New Zealand. http://www.linz.govt.nz/rcs/linz/pub/web/root/core/SurveySystem/GeodeticInfo/GeodeticDatums/nzgd2000factsheet/index.jsp
AccrageodeticFundamental point: GCS Station 547. Latitude: 5 deg 23 min 43.3 sec N; Longitude: 0 deg 11 min 52.3 sec W (of Greenwich).Superseded in 1978 by Leigon datum (code 6250).Ordnance Survey International
American Samoa 1962geodeticFundamental point: Betty 13 eccentric. Latitude: 14 deg 20 min 08.34 sec S; longitude: 170 deg 42 min 52.25 sec W1962NIMA TR8350.2 revision of January 2000. Oil industry sources for origin description details.
Sistema de Referencia Geocentrico para America del SurgeodeticITRF94 epoch 1995.42.1995Realised by a frame of 58 stations observed in 1995 and adjusted in the ITRF94.NIMA TR8350.2 revision of January 2000.
Reseau Geodesique Francais 1993geodeticCoincident with ETRS89 at epoch 1993.01993http://www.ign.fr/fr/PI/activites/geodesie/rgf93/RGF/rgf93.html via TotalFinaElf
Posiciones Geodesicas Argentinasgeodetic1994"Una red geodésica de 127 puntos materializados
http://www.igm.gov.ar/posgar.htmlEPSG2000-10-19 00:00:00
IRENET95geodeticETRS89 stations in Ireland1995Densification of ETRS89Ordnance Survey of Ireland
Sierra Leone Colony 1924geodeticFundamental point: Kortright. Latitude: 8 deg 28 min 44.4 sec N; Longitude: 13 deg 13 min 03.81 sec W (of Greenwich).1924Ordnance Survey International.
Sierra Leone 1968geodeticFundamental point: SLX2 Astro. Latitude: 8 deg 27 min 17.567 sec N; Longitude: 12 deg 49 min 40.186 sec W (of Greenwich).1968Extension and readjustment with additional observations of 1960 network. Coordinates of 1960 stations change by less than 3 metres.Ordnance Survey International.
Australian Antarctic Datum 1998geodetic1998Standards Australia
Pulkovo 1942/83geodeticFundamental point: Pulkovo observatory. Latitude: 59 deg 46 min 18.550 sec N; Longitude: 30 deg 19 min 42.090 sec E (of Greenwich).1983International adjustment of Uniforrm Astro-Geodetic Network of countries of central and eastern Europe.Bundesamt für Kartographie und Geodäsie via EuroGeographics; http://crs.ifag.de/
Pulkovo 1942/58geodeticFundamental point: Pulkovo observatory. Latitude: 59 deg 46 min 18.550 sec N; Longitude: 30 deg 19 min 42.090 sec E (of Greenwich).1958Glowny Urzad Geodezji i Kartografii via EuroGeographics; http://crs.ifag.de/
Estonia 1997geodeticDensification of ETRS89 during EUREF-ESTONIA97 campaign through transformation from ITRF96 epoch 1997.56.1997Supersedes Estonia 1992 adjustment (code 6133).Estonian National Land Board via EuroGeographics; http://crs.ifag.de/
Luxembourg 1930geodeticFundamental point: northern station of Habay-la-Neuve baseline in Belgium. Latitude: 49 deg 43 min 24.408 sec N; longitude: 5 deg 38 min 22.470 sec E (of Greenwich)1930Administration du Cadastre et de la Topographie via EuroGeographics; http://crs.ifag.de/
Azores Occidental Islands 1939geodeticFundamental point: Observatario Meteorologico Flores.1939Instituto Geografico e Cadastral Lisbon via EuroGeographics; http://crs.ifag.de/
Azores Central Islands 1948geodeticFundamental point: Graciosa south west base. Latitude: 39 deg 03 min 54.934 sec N; longitude: 28 deg 02 min 23.882 sec W1948Superseded by 1995 adjustment (datum code 6665).Instituto Geografico e Cadastral Lisbon via EuroGeographics; http://crs.ifag.de/ Oil industry sources for origin description details.
Azores Oriental Islands 1940geodeticFundamental point: Forte de São Bras.1940Superseded by 1995 adjustment (datum code 6664).Instituto Geografico e Cadastral Lisbon via EuroGeographics; http://crs.ifag.de/
Madeira 1936geodeticFundamental point: Madeira SE Base.1936Instituto Geografico e Cadastral Lisbon via EuroGeographics; http://crs.ifag.de/
OSNI 1952geodeticPosition fixed to the coordinates from the 19th century Principle Triangulation of station Divis. Scale and orientation controlled by position of Principle Triangulation stations Knocklayd and Trostan.1952Superseded by Geodetic Datum of 1965 alias 1975 Mapping Adjustment or TM75 (datum code 6300).Ordnance Survey of Northern Ireland.
Red Geodesica VenezolanageodeticRealised by a frame of 67 stations observed in 1995 as a densification of the SIRGAS campaign and adjusted in the ITRF94.2000Servicio Autonomo de Geografia y Cartografia Nacional.
Posiciones Geodesicas Argentinas 1998geodeticA geodetic network of 127 high accuracy surveyed points that define the National Geodetic System (Sistema Geodésico Nacional). Densification of SIRGAS 1995; ITRF94 epoch 1995.42.1998Una red geodésica de 127 puntos materializados en el terreno que definen el Sistema Geodésico Nacional. [A geodetic network of 127 points defining the National Geodetic System.] Supersedes the 1994 POSGAR adjustment (code 6172).http://www.igm.gov.ar/posgar.html
Albanian 1987geodetic1987EuroGeographics; http://crs.ifag.de/
Douala 1948geodeticSouth pillar of Doula base; 4deg 00min 40.64sec N, 9deg 42min 30.41sec E1948Superseded by Manoca 1962 datum (code 6193).TotalFinaElf
Manoca 1962geodeticReservoir centre at the Manoca tower ('tube Suel'), 3deg 51min 49.896sec N, 9deg 36min 49.347sec E.1962The intent of the Bukavu 1953 conference was to adopt the Clarke 1880 (RGS) ellipsoid (code 7012) but in practice this datum has used the IGN version. Supersedes Douala 1948 (code 6192).TotalFinaElf
Qornoq 1927geodeticFundamental point: Station 7008. Latitude: 64 deg 31 min 06.27 sec N; Longitude: 51 deg 12 min 24.86 sec W (of Greenwich).1927Kort & Matrikelstyrelsen, Copenhagen. Origin coordinates from NIMA http://earth-info.nima.mil/GandG/historic/hdatums.html
Scoresbysund 1952geodetic1952Kort & Matrikelstyrelsen, Copenhagen.
Ammassalik 1958geodetic1958Kort & Matrikelstyrelsen, Copenhagen.
GarouageodeticFundamental ;point: IGN astronomical station and benchmark no. 16 at Tongo. Latitude 8 deg 55 min 08.74 sec N; longitude 13 deg 30 min 43.19 sec E (of Greenwich).TotalFinaElf
KousserigeodeticIGN astronomical station Dabanga; 11deg 55min 05.9sec N 14deg 38min 40.8sec E.TotalFinaElf
Egypt 1930geodeticFundamental point: Station F1 (Venus). Latitude: 30 deg 01 min 42.86 sec N; Longitude: 31 deg 16 min 37.05 sec E (of Greenwich).1930Note that Egypt 1930 uses the International 1924 ellipsoid, unlike the Egypt 1907 datum (code 6229) which uses the Helmert ellipsoid. Oil industry references to the Egypt 1930 datum name and the Helmert ellipsoid probably mean Egypt 1907 datum.
Pulkovo 1995geodeticFundamental point: Pulkovo observatory. Latitude: 59 deg 46 min 15.359 sec N; Longitude: 30 deg 19 min 28.318 sec E (of Greenwich).1995'Main Terms of Reference for the State Geodetic Network'; Federal Geodetic Service of Russia; 1994
AdindangeodeticFundamental point: Station 15; Adindan. Latitude: 22 deg 10 min 07.110 sec N; Longitude: 31 deg 29 min 21.608 sec E (of Greenwich).The 12th parallel traverse of 1966-70 (Point 58 datum, code 6620) is connected to the Adindan network in western Sudan. This has given rise to misconceptions that the Adindan network is used in west Africa.
Australian Geodetic Datum 1966geodeticFundamental point: Johnson Memorial Cairn. Latitude: 25 deg 56 min 54.5515 sec S; Longitude: 133 deg 12 min 30.0771 sec E (of Greenwich).1966Australian Map Grid Technical Manual. National Mapping Council of Australia Technical Publication 7; 1972.
Australian Geodetic Datum 1984geodeticFundamental point: Johnson Memorial Cairn. Latitude: 25 deg 56 min 54.5515 sec S; Longitude: 133 deg 12 min 30.0771 sec E (of Greenwich).1984Uses all data from 1966 adjustment with additional observations, improved software and a geoid model.'GDA technical manual v2_2', Intergovernmental Committee on Surveying and Mapping. www.anzlic.org.au/icsm/gdtm/
Ain el Abd 1970geodeticFundamental point: Ain El Abd. Latitude: 28 deg 14 min 06.171 sec N; Longitude: 48 deg 16 min 20.906 sec E (of Greenwich).1970
Afgooyegeodetic
Agadezgeodetic
Lisbon 1937geodeticFundamental point: Castelo Sao Jorge; Lisbon. Latitude: 38 deg 42 min 43.631 sec N; Longitude: 9 deg 07 min 54.862 sec W (of Greenwich).1937Supersedes Lisbon 1890 adjustment (which used Bessel 1841 ellipsoid).Instituto Geografico e Cadastral; Lisbon
Aratugeodetic
Arc 1950geodeticFundamental point: Buffelsfontein. Latitude: 33 deg 59 min 32.000 sec S; Longitude: 25 deg 30 min 44.622 sec E (of Greenwich).1950
Arc 1960geodeticFundamental point: Buffelsfontein. Latitude: 33 deg 59 min 32.000 sec S; Longitude: 25 deg 30 min 44.622 sec E (of Greenwich).1960
BataviageodeticFundamental point: Longitude at Batavia Astro. Station. Latitude: 6 deg 7 min 39.522 sec S; Longitude: 106 deg 48 min 27.790 sec E (of Greenwich). Latitude and azimuth at Genuk.
Barbados 1938geodeticFundamental point: HMS Challenger astro station M1; latitude 13 deg 04 min 32.53 sec N; longitude 59 deg 36 min 29.34 sec W (of Greenwich).1938Ordnance Survey of Great Britain.
Beduaramgeodetic
Beijing 1954geodetic1954
Reseau National Belge 1950geodeticFundamental point: Lommel (tower). Latitude: 51 deg 13 min 47.334 sec N; Longitude: 5 deg 18 min 49.483 sec E (of Greenwich).1950
Bermuda 1957geodeticFundamental point: Fort George base. Latitude 32 deg 22 min 44.36 sec N; longitude 64 deg 40 min 58.11 sec W (of Greenwich).1957Various oil industry sources.
Bogota 1975geodeticFundamental point: Bogota observatory. Latitude: 4 deg 35 min 56.570 sec N; Longitude: 74 deg 4 min 51.300 sec W (of Greenwich).1975Supersedes 1951 adjustment.Instituto Geografico Agustin Caduzzi (IGAC) special publication no. 1, 4th edition (1975) 'Geodesia: Resultados Definitvos de Parte de las Redes Geodesicas Establecidas en el Pais'.
Bukit Rimpahgeodetic2deg 00min 40.16sec S 105deg 51min 39.76sec E (of Greenwich).
CamacupageodeticFundamental point: Campo de Aviaçao. Latitude: 12 deg 01 min 19.070 sec South, Longitude = 17 deg 27 min 19.800 sec East of Greenwich1948Clifford J. Mugnier, PE&RS journal, March 2001.
Campo InchauspegeodeticFundamental point: Campo Inchauspe. Latitude: 35 deg 58 min 16.56 sec S; Longitude: 62 deg 10 min 12.03 sec W (of Greenwich).NIMA http://earth-info.nima.mil/GandG/historic/hdatums.html
CapegeodeticFundamental point: Buffelsfontein. Latitude: 33 deg 59 min 32.000 sec S; Longitude: 25 deg 30 min 44.622 sec E (of Greenwich).Private Communication, Directorate of Surveys and Land Information, Cape Town.
CarthagegeodeticFundamental point: Carthage. Latitude: 40.9464506g = 36 deg 51 min 06.50 sec N; Longitude: 8.8724368g E of Paris = 10 deg 19 min 20.72 sec E of Greenwich.
ChuageodeticFundamental point: Chua. Latitude: 19 deg 45 min 41.160 sec S; Longitude: 48 deg 06 min 07.560 sec W (of Greenwich).NIMA http://earth-info.nima.mil/GandG/historic/hdatums.html
Corrego AlegregeodeticFundamental point: Corrego Alegre. Latitude: 19 deg 50 min 15.140 sec S; Longitude: 48 deg 57 min 42.750 sec W (of Greenwich).
Cote d'Ivoiregeodetic
Deir ez ZorgeodeticFundamental point: Trig. 254 Deir. Latitude: 35 deg 21 min 49.975 sec N; Longitude: 40 deg 05 min 46.770 sec E (of Greenwich).
Doualageodetic
Egypt 1907geodeticFundamental point: Station F1 (Venus). Latitude: 30 deg 01 min 42.86 sec N; Longitude: 31 deg 16 min 33.60 sec E (of Greenwich).1907
European Datum 1950geodeticFundamental point: Potsdam (Helmert Tower). Latitude: 52 deg 22 min 51.4456 sec N; Longitude: 13 deg 3 min 58.9283 sec E (of Greenwich).1950EuroGeographics; http://crs.ifag.de/
European Datum 1987geodeticFundamental point: Potsdam (Helmert Tower). Latitude: 52 deg 22 min 51.4456 sec N; Longitude: 13 deg 3 min 58.9283 sec E (of Greenwich).1987
FahudgeodeticFundamental point: Station NO68-024 Fahud. Latitude: 22 deg 17 min 31.182 sec N; Longitude: 56 deg 29 min 18.820 sec E (of Greenwich).Superseded by PSD93 (code 6134).Petroleum Development Oman.
Gandajika 1970geodetic1970
GarouageodeticThe intent of the Bukavu 1953 conference was to adopt the Clarke 1880 (RGS) ellipsoid (code 7012) but in practice this datum has used the IGN version.
Guyane Francaisegeodetic
Hu Tzu ShangeodeticFundamental point: Herat North. Latitude: 23 deg 58 min 32.34 sec N; Longitude: 120 deg 58 min 25.975 sec E (of Greenwich).NIMA http://earth-info.nima.mil/GandG/historic/hdatums.html
Hungarian Datum 1972geodeticFundamental point: Szolohegy. Latitude: 47 deg 17 min 32,6156 sec N; Longitude 19 deg 36 min 09.9865 sec E; geoid height 6.56m.1972http://lazarus.elte.hu/gb/geodez/geod3.htm
Indonesian Datum 1974geodeticFundamental point: Padang. Latitude: 0 deg 56 min 38.414 sec S; Longitude: 100 deg 22 min 8.804 sec E (of Greenwich). Ellipsoidal height 3.190m, gravity-related height 14.0m above mean sea level.1974Bakosurtanal 1979 paper by Jacob Rais.
Indian 1954geodeticExtension of Kalianpur 1937 over Myanmar and Thailand.1954
Indian 1975geodeticFundamental point: Khau Sakaerang1975
Jamaica 1875geodeticFundamental point: Fort Charles Flagstaff. Latitude: 17 deg 55 min 55.800 sec N; Longitude: 76 deg 56 min 37.260 sec W (of Greenwich).1875
Jamaica 1969geodeticFundamental point: Fort Charles Flagstaff. Latitude: 17 deg 55 min 55.800 sec N; Longitude: 76 deg 56 min 37.260 sec W (of Greenwich).1969
Kalianpur 1880geodeticFundamental point: Kalianpur. Latitude: 24 deg 07 min 11.260 sec N; Longitude: 77 deg 39 min 17.570 sec E (of Greenwich).1880Includes 1916 extrension into Burma (Myanmar). Superseded by 1937 adjustment.G. Bomford; 'The Re-adjustment of the Indian Triangulation'; Survey of India Professional Paper 28; 1939.
Kandawalageodetic
KertaugeodeticFundamental point: Kertau. Latitude: 3 deg 27 min 50.710 sec N; Longitude: 102 deg 37 min 24.550 sec E (of Greenwich).
Kuwait Oil Companygeodetic
La CanoageodeticFundamental point: La Canoa. Latitude: 8 deg 34 min 17.170 sec N; Longitude: 63 deg 51 min 34.880 sec W (of Greenwich).Origin also adopted for PSAD56.
Provisional South American Datum 1956geodeticFundamental point: La Canoa. Latitude: 8 deg 34 min 17.170 sec N; Longitude: 63 deg 51 min 34.880 sec W (of Greenwich).1956Same origin as La Canoa datum.
LakegeodeticFundamental point: Maracaibo Cathedral. Latitude: 10 deg 38 min 34.678 sec N; Longitude: 71 deg 36 min 20.224 sec W (of Greenwich).
LeigongeodeticFundamental point: GCS Station 121, Leigon. Latitude: 5 deg 38 min 52.27 sec N; Longitude: 0 deg 11 min 46.08 sec W (of Greenwich).Superseded Accra datum (code 6168) from 1978. Coordinates at Leigon fundamental point defined as Accra datum values for that point.Ordnance Survey International
Liberia 1964geodeticFundamental point: Robertsfield. Latitude: 6 deg 13 min 53.02 sec N; Longitude: 10 deg 21 min 35.44 sec W (of Greenwich).1964NIMA http://earth-info.nima.mil/GandG/historic/hdatums.html
Lomegeodetic
Luzon 1911geodeticFundamental point: Balacan. Latitude: 13 deg 33 min 41.000 sec N; Longitude: 121 deg 52 min 03.000 sec E (of Greenwich).1911
Hito XVIII 1963geodeticChile-Argentina boundary survey.1963Used in Tierra del Fuego.Various oil company records.
Herat NorthgeodeticFundamental point: Herat North. Latitude: 34 deg 23 min 09.08 sec N; Longitude: 64 deg 10 min 58.94 sec E (of Greenwich).NIMA http://earth-info.nima.mil/GandG/historic/hdatums.html
Mahe 1971geodeticFundamental point: Mahe1971
MakassargeodeticFundamental point: station P1, Moncongloe. Latitude: 5 deg 08 min 41.42 sec S; long 119 deg 24 min 14.94 sec E of Greenwich.NIMA http://earth-info.nima.mil/GandG/historic/hdatums.html
European Terrestrial Reference System 1989geodetic"Fixed to the stable part of the Eurasian continental
19897019890112982003-08-14 00:00:0097.11 97.55 99.111 2000.72 2003.26
Malongo 1987geodeticFundamental point: Station Y at Malongo base camp. Latitude: 5 deg 23 min 34.327 sec S; Longitude: 12 deg 12 min 02.393 sec E (of Greenwich).1987Offshore extension of Mhast datum (6264) using Transit translocation.Chevron Petroleum Technology.
Manocageodetic
MerchichgeodeticFundamental point: Merchich. Latitude: 33 deg 26 min 59.672 sec N; Longitude: 7deg 33 min 27.295sec W (of Greenwich).1922
Massawageodetic
MinnageodeticFundamental point: Minna base station L40. Latitude: 9 deg 38 min 08.87 sec N; Longitude: 6 deg 30 min 58.76 sec E (of Greenwich).NIMA http://earth-info.nima.mil/GandG/historic/hdatums.html
Mhastgeodetic
Monte MariogeodeticFundamental point: Monte Mario. Latitude: 41 deg 55 min 25.51 sec N; Longitude: 12 deg 27 min 08.4 sec E (of Greenwich).1940Superseded Genova datum, Bessel 1841 ellipsoid, from 1940.
M'poralokogeodetic
North American Datum 1927geodeticFundamental point: Meade's Ranch. Latitude: 39 deg 13 min 26.686 sec N; Longitude: 98 deg 32 min 30.506 sec W (of Greenwich).1927Superseded by North American Datum 1983 (NAD83)
NAD MichigangeodeticFundamental point: Meade's Ranch. Latitude: 39 deg 13 min 26.686 sec N; Longitude: 98 deg 32 min 30.506 sec W (of Greenwich).
North American Datum 1983geodeticOrigin at geocentre.1986
Nahrwan 1967geodeticFundamental point: Nahrwan south base. Latitude: 33 deg 19 min 10.87 sec N; Longitude: 44 deg 43 min 25.54 sec E (of Greenwich).1967
Naparima 1972geodeticFundamental point: Naparima. Latitude: 10 deg 16 min 44.860 sec N; Longitude: 61 deg 27 min 34.620 sec W (of Greenwich).1972Naparima 1972 is an extension of the Naparima 1955 network of Trinidad to include Tobago.Ordnance Survey International.
New Zealand Geodetic Datum 1949geodeticFundamental point: Papatahi. Latitude: 41 deg 19 min 8.900 sec S; Longitude: 175 deg 02 min 51.000 sec E (of Greenwich).1949
NGO 1948geodeticFundamental point: Oslo observatory. Latitude: 59 deg 54 min 43.7 sec N; Longitude: 10 deg 43 min 22.5 sec E (of Greenwich).1948EuroGeographics; http://crs.ifag.de/
Datum 73geodeticFundamental point: TF4, Melrica. Latitude: 39 deg 41 min 37.30 sec N; Longitude: 8 deg 07 min 53.31 sec W (of Greenwich).1964Instituto Geografico e Cadastral; Lisbon
Nouvelle Triangulation FrancaisegeodeticFundamental point: Pantheon. Latitude: 48 deg 50 min 46.522 sec N; Longitude: 2 deg 20 min 48.667 sec E (of Greenwich).1895
NSWC 9Z-2geodeticTransit precise ephemeris before 1991.
OSGB 1936geodeticFundamental point: Pre 2002: Herstmonceux, Latitude: 50 deg 51 min 55.271 sec N; Longitude: 0 deg 20 min 45.882 sec E (of Greenwich). From April 2002 the datum is defined through the application of the OSTN02 transformation (tfm code 1039) to ETRS89.1936Ordnance Survey of Great Britain
OSGB 1970 (SN)geodeticFundamental point: Herstmonceux. Latitude: 50 deg 51 min 55.271 sec N; Longitude: 0 deg 20 min 45.882 sec E (of Greenwich).1970
OS (SN) 1980geodeticFundamental point: Herstmonceux. Latitude: 50 deg 51 min 55.271 sec N; Longitude: 0 deg 20 min 45.882 sec E (of Greenwich).1980
Padang 1884geodeticFundamental point: Padang1884
Palestine 1923geodeticFundamental point: Point 82'M Jerusalem. Latitude: 31 deg 44 min 2.749 sec N; Longitude: 35 deg 12 min 43.490 sec E (of Greenwich).1923
Congo 1960 Pointe NoiregeodeticFundamental point: Point Noire Astro. Latitude: 4 deg 47 min 00.10 sec S; Longitude: 11 deg 51 min 01.55 sec E (of Greenwich).1960Elf
Geocentric Datum of Australia 1994geodeticITRF92 at epoch 1994.01994Coincident with WGS84 to within 1 metre.Australian Surveying and Land Information Group Internet WWW page. http://www.auslig.gov.au/geodesy/datums/gda.htm#specs
Pulkovo 1942geodeticFundamental point: Pulkovo observatory. Latitude: 59 deg 46 min 18.550 sec N; Longitude: 30 deg 19 min 42.090 sec E (of Greenwich).1942
Qatar 1974geodeticFundamental point: Station G31974
Qatar 1948geodeticFundamental point: Sokey 0 M. Latitude: 25 deg 22 min 56.500 sec N; Longitude: 50 deg 45 min 41.000 sec E (of Greenwich).1948
Qornoqgeodetic1927
Loma QuintanageodeticFundamental point: Loma QuintanaSuperseded by La Canoa (code 6247).
AmersfoortgeodeticFundamental point: Amersfoort. Latitude: 52 deg 09 min 22.178 sec N; Longitude: 5 deg 23 min 15.478 sec E (of Greenwich).
South American Datum 1969geodetic1969SAD69 uses GRS67 ellipsoid with 1/f to exactly 2 decimal places. Precision of ellipsoid entry increased from 2 to 5 dp with change id 97.252. Error introduced if not using the truncated precision is 0 to 31mm.
Sapper Hill 1943geodetic1943
SchwarzeckgeodeticPrivate Communication, Directorate of Surveys and Land Information, Cape Town.
Segorageodetic
SerindunggeodeticFundamental point: Ep A. Latitude: 1 deg 06 min 10.60 sec N; Longitude: 105 deg 00 min 59.82 sec E (of Greenwich).NIMA http://earth-info.nima.mil/GandG/historic/hdatums.html
Sudangeodetic
Tananarive 1925geodeticFundamental point: Tananarive observatory. Latitude: 18 deg 55 min 02.10 sec S; Longitude: 47 deg 33 min 06.75 sec E (of Greenwich).2025IGN Paris
Timbalai 1948geodeticFundamental point: Timbalai. Latitude: 5 deg 17 min 3.548 sec N; Longitude: 115 deg 10 min 56.409 sec E (of Greenwich).1948
TM65geodeticAdjusted to best mean fit 12 stations of the OSNI 1952 primary adjustment.1965Differences between OSNI 1952 and TM65 at these stations are RMS 0.25m east, 0.23m north, maximum vector 0.57m. TM65 superseded by and not to be confused with Geodetic Datum of 1965 alias 1975 Mapping Adjustment or TM75 (datum code 6300).'The Irish Grid - A Description of the Co-ordinate Reference System' published by Ordnance Survey of Ireland, Dublin and Ordnance Survey of Northern Ireland, Belfast.
Geodetic Datum of 1965geodeticAdjusted to best mean fit 9 stations of the OSNI 1952 primary adjustment in Northern Ireland plus the 1965 values of 3 stations in the Republic of Ireland.1975Differences from the 1965 adjustment (datum code 6299) are: average difference in Eastings 0.092m; average difference in Northings 0.108m; maximum vector difference 0.548m.'The Irish Grid - A Description of the Co-ordinate Reference System' published by Ordnance Survey of Ireland, Dublin and Ordnance Survey of Northern Ireland, Belfast.
TokyogeodeticFundamental point: Nikon-Keido-Genten. Latitude: 35 deg 39 min 17.5148 sec N; Longitude: 139 deg 44 min 40.5020 sec E (of Greenwich).Superseded by Japanese Geodetic Datum 2000 (code 6611).Geographic Survey Institute; Japan; Bulletin 40 (March 1994). Also http://vldb.gsi.go.jp/sokuchi/datum/tokyodatum.html
Trinidad 1903geodeticHarbour Master's Flagstaff; Port of Spain. Latitude: 10 deg 38 min 39.02 sec N, Longitude: 61 deg 30 min 38.00 sec W (of Greenwich)1903Clifford J. Mugnier, PE&RS November 2000.
Trucial Coast 1948geodeticFundamental point: TC1. Latitude: 25 deg 23 min 50.190 sec N; Longitude: 55 deg 26 min 43.950 sec E (of Greenwich).1948
Voirol 1875geodeticFundamental point: Voirol. Latitude: 36 deg 45 min 07.927 sec N; Longitude: 3 deg 02 min 49.435 sec E of Greenwich. Uses RGS (and old IGN) value of 2 deg 20 min 13.95 sec for Greenwich-Paris meridian difference.1875Superseded by Voirol 1879 (code 6671).IGN Paris
Bern 1938geodeticFundamental point: Old Bern observatory. Latitude: 46 deg 57 min 7.890 sec N; Longitude: 7 deg 26 min 22.335 sec E (of Greenwich).1938This redetermination of the coordinates of fundamental point is used for scientific purposes and as the graticule overprinted on topographic maps constructed on the CH1903 / LV03 projected CS (code 21781).'Die Projektionen der schweizerischen Plan- und Kartenwerke'; J. Bolliger 1967
Nord Sahara 1959geodeticCoordinates of primary network readjusted on ED50 datum and then transformed conformally to Clarke 1880 (RGS) ellipsoid.1959Sometimes incorrectly referred to as Voirol Unifie 1960. Voirol Unifie 1960 is NOT a datum: it is two projected coordinate systems based on Nord Sahara 1959. See coordinate system codes 30791 and 30792.'Le System Geodesique Nord-Sahara'; IGN Paris
Stockholm 1938geodeticFundamental point: Stockholm observatory1938Superseded by RT90 adjustment (datum code 6124)
YacaregeodeticFundamental point: Yacare. Latitude: 30 deg 35 min 53.68 sec S; Longitude: 57 deg 25 min 01.30 sec W of Greenwich.NIMA http://earth-info.nima.mil/GandG/historic/hdatums.html
YoffgeodeticFundamental point: Yoff. Latitude: 14 deg 44 min 41.62 sec N; Longitude: 17 deg 29 min 07.02 sec W of Greenwich.
Zanderijgeodetic
Militar-Geographische InstitutgeodeticFundamental point: Hermannskogel. Latitude: 48 deg 16 min 15.29 sec N; Longitude: 16 deg 17 min 41.06 sec E (of Greenwich).1901Croatia is planning to define a new modern datum to supersede HR1901 (info from EuroGeographics; http://crs.ifag.de/).Bundesamt fur Eich- und Vermessungswesen; Wien
Reseau National Belge 1972geodeticFundamental point: Uccle observatory. Latitude: 50 deg 47 min 57.704 sec N; Longitude: 4 deg 21 min 24.983 sec E (of Greenwich).1972
Deutsches HauptdreiecksnetzgeodeticFundamental point: Rauenberg. Latitude: 52 deg 27 min 12.021 sec N; Longitude: 13 deg 22 min 04.928 sec E (of Greenwich).
Conakry 1905geodeticFundamental point: Conakry. Latitude: 10.573766g N; Longitude: 17.833682g W (of Paris).1905
Dealul Piscului 1933geodeticFundamental point: latitude 44 deg 24 min 33.9606 sec N; longitude 26 deg 06 min 44.8772 sec E (of Greenwich).1933Superseded by 1970 adjustment (datum code 6317)Institute for Geodesy Photogrametry and Land Management
Dealul Piscului 1970geodeticFundamental point: latitude 44 deg 24 min 23.7709 sec N; longitude 26deg 06 min 44.1265 sec E (of Greenwich).1970Supersedes 1933 adjustment (datum code 6316)Institute for Geodesy Photogrametry and Land Management
National Geodetic Networkgeodetic
Kuwait Utilitygeodetic
World Geodetic System 1972geodeticDeveloped from a worldwide distribution of terrestrial and geodetic satellite observations and defined through a set of station coordinates.1972Used by GPS before 1987. For Transit satellite positioning see also WGS 72BE. Datum code 6323 reserved for southern hemisphere ProjCS's.NIMA http://earth-info.nima.mil/GandG/historic/hdatums.html
WGS 72 Transit Broadcast Ephemerisgeodetic1972Alleged datum for use with Transit broadcast ephemeris prior to 1989. Relationship to WGS 72 has changed over time. Datum code 6325 reserved for southern hemisphere ProjCS's.
World Geodetic System 1984geodeticDefined through a consistent set of station coordinates. These have changed with time: by 0.7m on 29/6/1994 [WGS 84 (G730)], and a further 0.2m on 29/1/1997 [WGS 84 (G873)] since when they have been retained within 10cm of the then current ITRF.1984EPSG's WGS 84 datum has been the then current realisation. No distinction is made between the original WGS 84 frame, WGS 84 (G730) and WGS 84 (G873).NIMA TR8350.2 January 2000 revision. http://164.214.2.59/GandG/tr8350_2.html
Anguilla 1957geodeticFundamental point: station A4.1957Ordnance Survey of Great Britain.
Antigua 1943geodeticFundamental point: station A14.1943Ordnance Survey of Great Britain.
Dominica 1945geodeticFundamental point: station M12.1945Ordnance Survey of Great Britain.
Grenada 1953geodeticFundamental point: station GS8.1953Ordnance Survey of Great Britain.
Montserrat 1958geodeticFundamental point: station M36.1958Ordnance Survey of Great Britain.
St. Kitts 1955geodeticFundamental point: station K12.1955Ordnance Survey of Great Britain.
St. Lucia 1955geodeticFundamental point: station DCS3.1955Ordnance Survey of Great Britain.
St. Vincent 1945geodeticFundamental point: station V1.1945Ordnance Survey of Great Britain.
North American Datum 1927 (1976)geodeticFundamental point: Meade's Ranch. Latitude: 39 deg 13 min 26.686 sec N; Longitude: 98 deg 32 min 30.506 sec W (of Greenwich).1976NAD27(76) used in Ontario for all maps at scale 1/20 000 and larger; elsewhere in Canada for selected purposes.Geodetic Survey of Canada.
North American Datum 1927 (CGQ77)geodeticFundamental point: Meade's Ranch. Latitude: 39 deg 13 min 26.686 sec N; Longitude: 98 deg 32 min 30.506 sec W (of Greenwich).1977NAD27 (CGQ77) used in Quebec for all maps at scale 1/20 000 and larger; generally for maps issued by the Quebec cartography office whose reference system is CGQ77.Geodetic Service of Quebec. Contact alain.bernard@mrn.gouv.qc.ca
Xian 1980geodetic1980BP
Hong Kong 1980geodeticFundamental point: Trig 'Zero', 38.4 feet south along the transit circle of the Kowloon Observatory. Latitude 22deg 18min 12.82sec North, longitude 114deg 10min 18.75sec East.1980Supersedes Hong Kong 1963 datum and 1973 metric adjustment.Survey and Mapping Office, Lands Department. http://www.info.gov.hk/landsd/mapping/tindex.htm
Japanese Geodetic Datum 2000geodeticITRF94 at epoch 1997.02000Instigated under amendment to the Japanese Surveying Law with effect from April 2002. Supersedes Tokyo datum (code 6301).Japanese Survey Federation and Geographical Survey Institute http://www.gsi.go.jp/ENGLISH/RESEARCH/BULLETIN/vol-45/45abst1.htm
Gunung SegarageodeticStation P5 (Gunung Segara). Latitude 0deg 32min 12.83sec S, longitude 117deg 08min 48.47sec E (of Greenwich).TotalFinaElf.
Qatar National Datum 1995geodeticDefined by transformation from WGS 84 - see coordinate operation code 1840.1995Qatar Centre for Geographic Information.
Porto Santo 1936geodeticSE Base on Porto Santo island.1936Superseded by 1995 adjustment (datum code 6663). For Selvagens see Selvagem Grande (code 6616).Instituto Geografico e Cadastral Lisbon http://www.igeo.pt
Selvagem GrandegeodeticInstituto Geografico e Cadastral Lisbon http://www.igeo.pt
South American Datum 1969geodeticFundamental point: Chua. Geodetic latitude: 19 deg 45 min 41.6527 sec S; geodetic longitude: 48 deg 06 min 04.0639 sec W (of Greenwich). (Astronomic coordinates: Latitude 19 deg 45 min 41.34 +/- 0.05 sec S; Longitude 48 deg 06 min 07.80 +/- 0.08 sec W).1969SAD69 uses GRS 1967 ellipsoid but with 1/f to exactly 2 decimal places.DMA 1974.
SWEREF99geodeticDensification of ETRS89.1982National Land Survey of Sweden http://www.lantmateriet.se
Point 58geodeticFundamental point: Point 58. Latitude: 3 deg 58 min 37.040 sec N; Longitude: 12 deg 52 min 44.045 sec E (of Greenwich).1969Used as the basis for computation of the 12th Parallel traverse conducted 1966-70 from Senegal to Chad and connecting to the Adindan triangulation in Sudan.IGN Paris.
Fort MarigotgeodeticSuperseded by RRAF 1991 (datum code 6640).IGN Paris.
Sainte AnnegeodeticSuperseded by RRAF 1991 (datum code 6640).IGN Paris.
Centre Spatial Guyanais 1967geodeticFundamental point: Kourou-Diane. Latitude: 5 deg 15 min 53.699 sec N; Longitude: 52 deg 48 min 09.149 sec W (of Greenwich).1967Superseded by RGFG95 (code 6624).IGN Paris.
Reseau Geodesique Francais Guyane 1995geodeticITRF93 at epoch 1995.01995Supersedes CSG67 (datum code 6623).IGN Paris.
Fort DesaixgeodeticFundamental point: Fort Desaix. Latitude: 14 deg 36 min 54.090 sec N; Longitude: 61 deg 04 min 04.030 sec W (of Greenwich).Superseded by RRAF 1991 (datum code 6640).IGN Paris.
Piton des NeigesgeodeticFundamental point: Piton des Neiges (Borne). Latitude: 21 deg 05 min 13.119 sec S; Longitude: 55 deg 29 min 09.193 sec E (of Greenwich).Superseded by RGR92 (datum code 6627).IGN Paris.
Reseau Geodesique de la Reunion 1992geodeticITRF91 at epoch 93.01992Supersedes Piton des Neiges (code 6626).IGN Paris.
TahitigeodeticTahiti North BaseIGN Paris.
TahaageodeticIGN Paris.
IGN72 Nuku Hivageodetic1972IGN Paris.
K0 1949geodetic1949IGN Paris.
Combani 1950geodetic1950IGN Paris.
IGN56 Lifougeodetic1956Service Topographique de la Nouvelle Caledonie.
IGN72 Grande Terregeodetic1972Service Topographique de la Nouvelle Caledonie.
ST87 Ouveageodetic1987Service Topographique de la Nouvelle Caledonie.
Petrels 1972geodeticFundamental point: Astro station DZ on Ile de Petrels. Latitude: 66 deg 40 min 00 sec S; Longitude: 140 deg 00 min 46 sec E (of Greenwich).1972IGN Paris.
Pointe Geologie Perroud 1950geodeticFundamental point: Astro station G.0 on Pointe Geologie. Latitude: 66 deg 39 min 30 sec S; Longitude: 140 deg 01 min 00 sec E (of Greenwich).1950IGN Paris.
Saint Pierre et Miquelon 1950geodetic1950IGN Paris.
MOP78geodetic1978IGN Paris.
Reseau de Reference des Antilles Francaises 1991geodeticWGS 84 coordinates of a single station determined during the 1988 Tango mission.1991Supersedes Fort Marigot and Sainte Anne (datum codes 6621-22) in Guadeloupe and Fort Desaix (datum code 6625) in Martinique.IGN Paris.
IGN53 Maregeodetic1953Service Topographique de la Nouvelle Caledonie.
ST84 Ile des Pinsgeodetic1984Service Topographique de la Nouvelle Caledonie.
ST71 Belepgeodetic1971Service Topographique de la Nouvelle Caledonie.
NEA74 Noumeageodetic1974Service Topographique de la Nouvelle Caledonie.
Reseau Geodesique Nouvelle Caledonie 1991geodeticITRF90 at 1989.01989Service Topographique de la Nouvelle Caledonie.
Grand ComorosgeodeticFundamental point: M'Tsaoueni. Latitude: 11 deg 28 min 32.200 sec S; Longitude: 43 deg 15 min 42.315 sec E (of Greenwich).IGN Paris.
IERS Terrestrial Reference Frame 1988geodeticOrigin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS).1988Realisation of the IERS Terrestrial Reference System (ITRS) at 1988.0. Superseded by ITRF89 (code 6648).International Earth Rotation Service (IERS) Annual Report for 1988. Also IGN Paris http://lareg.ensg.ign.fr/ITRF
IERS Terrestrial Reference Frame 1989geodeticOrigin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS).1989Realisation of the IERS Terrestrial Reference System (ITRS) at 1989.0. Supersedes ITRF88 (code 6647). Superseded by ITRF90 (code 6649).International Earth Rotation Service (IERS) Technical Note No. 6. Also IGN Paris http://lareg.ensg.ign.fr/ITRF
IERS Terrestrial Reference Frame 1990geodeticOrigin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS).1990Realisation of the IERS Terrestrial Reference System (ITRS) at 1990.0. Supersedes ITRF89 (code 6648). Superseded by ITRF91 (code 6650).International Earth Rotation Service (IERS) Technical Note No. 9. Also IGN Paris http://lareg.ensg.ign.fr/ITRF
IERS Terrestrial Reference Frame 1991geodeticOrigin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS).1991Realisation of the IERS Terrestrial Reference System (ITRS) at 1991.0. Supersedes ITRF90 (code 6649). Superseded by ITRF92 (code 6651).International Earth Rotation Service (IERS) Technical Note No. 12. Also IGN Paris http://lareg.ensg.ign.fr/ITRF
IERS Terrestrial Reference Frame 1992geodeticOrigin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS).1992Realisation of the IERS Terrestrial Reference System (ITRS) at 1992.0. Supersedes ITRF91 (code 6650). Superseded by ITRF93 (code 6652).International Earth Rotation Service (IERS) Technical Note No. 15. Also IGN Paris http://lareg.ensg.ign.fr/ITRF
IERS Terrestrial Reference Frame 1993geodeticOrigin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS).1993Realisation of the IERS Terrestrial Reference System (ITRS) at 1993.0. Supersedes ITRF92 (code 6651). Superseded by ITRF94 (code 6653).International Earth Rotation Service (IERS) Technical Note No. 18. Also IGN Paris http://lareg.ensg.ign.fr/ITRF
IERS Terrestrial Reference Frame 1994geodeticOrigin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS).1994Realisation of the IERS Terrestrial Reference System (ITRS) at 1994.0. Supersedes ITRF93 (code 6652). Superseded by ITRF96 (code 6654).International Earth Rotation Service (IERS) Technical Note No. 20. Also IGN Paris http://lareg.ensg.ign.fr/ITRF
IERS Terrestrial Reference Frame 1996geodeticOrigin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS).1996Realisation of the IERS Terrestrial Reference System (ITRS) at 1996.0. Supersedes ITRF94 (code 6653). Superseded by ITRF97 (code 6655).International Earth Rotation Service (IERS) Technical Note No. 24. Also IGN Paris http://lareg.ensg.ign.fr/ITRF
IERS Terrestrial Reference Frame 1997geodeticOrigin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS).1997Realisation of the IERS Terrestrial Reference System (ITRS) at 1997.0. Supersedes ITRF96 (code 6654). Superseded by ITRF2000 (code 6656).International Earth Rotation Service (IERS) Technical Note No. 27. Also IGN Paris http://lareg.ensg.ign.fr/ITRF
IERS Terrestrial Reference Frame 2000geodeticOrigin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS).2000Realisation of the IERS Terrestrial Reference System (ITRS) at 2000.0. Supersedes ITRF97 (code 6655).IGN Paris http://lareg.ensg.ign.fr/ITRF
Reykjavik 1900geodeticFundamental point: Latitude: 64 deg 08 min 31.88 sec N; Longitude: 21 deg 55 min 51.15 sec W (of Greenwich).1900Landmaelingar Islands (National Survey of Iceland).
Hjorsey 1955geodeticFundamental point: Latitude: 64 deg 31 min 29.26 sec N; Longitude: 22 deg 22 min 05.84 sec W (of Greenwich).1955Landmaelingar Islands (National Survey of Iceland).
Islands Network 1993geodeticITRF93 at 1993.6.1996Landmaelingar Islands (National Survey of Iceland).
Helle 1954geodetic1954Statens kartverk.
Latvia 1992geodeticConstrained to 4 ETRS89 points in Latvia from the EUREF Baltic 1992 campaign.1992Densification of ETRS89 during the 1992 Baltic campaign.Latvijas Republikas Valsts zemes dienests (State Land Service of the Republic of Latvia) via EuroGeographics. http://crs.ifag.de
Porto Santo 1995geodeticSE Base on Porto Santo island. Origin and orientation constrained to those of the 1936 adjustment.1995"Classical and GPS observations. Supersedes 1936 adjustment (datum code 6615).
Instituto Geografico e Cadastral Lisbon; http://www.igeo.pt/IGEO/portugues/Frameset-produtos.htmlEPSG2003-08-14 00:00:00
Azores Oriental Islands 1995geodeticFundamental point: Forte de São Bras. Origin and orientation constrained to those of the 1940 adjustment.1940Classical and GPS observations. Supersedes 1940 adjustment (datum code 6184).Instituto Geografico e Cadastral Lisbon; http://www.igeo.pt/IGEO/portugues/Frameset-produtos.html
Azores Central Islands 1995geodeticFundamental point: Graciosa south west base. Origin and orientation constrained to those of the 1948 adjustment.1948Classical and GPS observations. Supersedes 1948 adjustment (datum code 6183).Instituto Geografico e Cadastral Lisbon; http://www.igeo.pt/IGEO/portugues/Frameset-produtos.html
Lisbon 1890geodeticFundamental point: Castelo Sao Jorge; Lisbon. Latitude: 38 deg 42 min 43.631 sec N; Longitude: 9 deg 07 min 54.862 sec W of Greenwich.1937Superseded by Lisbon 1937 adjustment (which uses International 1924 ellipsoid).Instituto Geografico e Cadastral Lisbon http://www.igeo.pt
Iraq-Kuwait Boundary Datum 1992geodeticFour stations established between September and December 1991 determined by GPS and Doppler observations.1992United Nations Iraq-Kuwait Boundary Demarcation Commission, Final Report, May 1993.
European Datum 1979geodeticFundamental point: Potsdam (Helmert Tower). Latitude: 52 deg 22 min 51.4456 sec N; Longitude: 13 deg 3 min 58.9283 sec E (of Greenwich).1979Superseded by 1987 adjustment.
Istituto Geografico Militaire 1995geodeticNetwork of 1296 points observed 1992-1995 and adjusted in 1996 constrained to 9 ETRS89 points. Densification of ETRS89 in Italy.1995ENI
Voirol 1879geodeticFundamental point: Voirol. Latitude: 36 deg 45 min 08.199 sec N; Longitude: 3 deg 02 min 49.435 sec E of Greenwich. Uses RGS (and old IGN) value of 2 deg 20 min 13.95 sec for Greenwich-Paris meridian difference.1879Supersedes Voirol 1875 (code 6304).IGN Paris
CH1903 (Bern)geodeticFundamental point: Old Bern observatory. Latitude: 46 deg 57 min 08.660 sec N; Longitude: 0 deg E of Bern.1903Bundesamt für Landestopographie
Bogota 1975 (Bogota)geodeticFundamental point: Bogota observatory. Latitude: 4 deg 35 min 56.570 sec N; Longitude: 0 deg E of Bogota.1975
Lisbon 1937 (Lisbon)geodeticFundamental point: Castelo Sao Jorge; Lisbon. Latitude: 38 deg 42 min 43.631 sec N; Longitude: 01937Supersedes Lisbon 1890 adjustment (which used Bessel 1841 ellipsoid).Instituto Geografico e Cadastral; Lisbon
Makassar (Jakarta)geodeticFundamental point: station P1, Moncongloe. Latitude 5 deg 08 min 41.42 sec S; longitude 12 deg 35 min 47.15 sec E of Jakarta.EPSG
Militar-Geographische Institut (Ferro)geodeticFundamental point: Hermannskogel. Latitude: 48 deg 16 min 15.29 sec N; Longitude: 33 deg 57 min 41.06 sec E of Ferro.1901Bundesamt fur Eich- und Vermessungswesen; Wien
Monte Mario (Rome)geodeticFundamental point: Monte Mario. Latitude: 41 deg 55 min 25.51 sec N; Longitude: 0 deg 00 min 00.00 sec E (of Rome).Superseded Genova datum, Bessel 1841 ellipsoid, from 1940.
Nouvelle Triangulation Francaise (Paris)geodeticFundamental point: Pantheon. Latitude: 54.273618g N; Longitude: 0.0106921g E (of Paris).1895
Padang 1884 (Jakarta)geodeticFundamental point: Padang1884
Reseau National Belge 1950 (Brussels)geodeticFundamental point: Lommel (tower). Latitude: 51 deg 13 min 47.334 sec N; Longitude: 0 deg 56 min 44.773 sec E (of Brussels).1950
Tananarive 1925 (Paris)geodeticFundamental point: Tananarive observatory. Latitude: 21.0191667g S; Longitude: 50.23849537g E (of Paris)1925IGN Paris
Voirol 1875 (Paris)geodeticFundamental point: Voirol. Latitude: 40.83578 grads N; Longitude: 0.78873 grads E of Paris.1875IGN Paris
Batavia (Jakarta)geodeticFundamental point: Longitude at Batavia Astro. Station. Latitude: 6 deg 7 min 39.522 sec S; Longitude: 0 deg 00 min 00.0 sec E (of Jakarta). Latitude and azimuth at Genuk.
Stockholm 1938 (Stockholm)geodeticFundamental point: Stockholm observatory1938Superseded by RT90 adjustment (datum code 6124)
Greek (Athens)geodeticFundamental point: Athens Observatory; latitude 37 deg 58 min 20.132 sec N; longitude 0 deg E of Athens.See geodetic datum alias 6404. Used as basis of topographic mapping based on Hatt projection.Topography Department; National Technical University of Athens
Carthage (Paris)geodeticFundamental point: Carthage. Latitude: 40.9464506g N; Longitude: 8.8724368g E (of Paris).
NGO 1948 (Oslo)geodeticFundamental point: Oslo observatory. Latitude: 59 deg 54 min 43.7 sec N; Longitude: 0 deg 00 min 00.0 sec E (of Oslo).1948
S-JTSK (Ferro)geodeticModification of Austrian MGI (Ferro) datum.1920"Research Institute for Geodesy Topography and Cartography (VUGTK);

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