Ordnance Survey's Levelling of Great Britain |
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DATUM_NAME | DATUM_TYPE | ORIGIN_DESCRIPTION | REALIZATION_EPOCH | REMARKS | INFORMATION_SOURCE |
---|---|---|---|---|---|
Mean Sea Level | vertical | msl 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 Newlyn | vertical | Ordnance Survey of Great Britain | |||
National Geodetic Vertical Datum 1929 | vertical | 26 tide gauges in the US and Canada. | 1929 | ||
North American Vertical Datum 1988 | vertical | Father's Point, Rimouski, Quebec. | 1988 | ||
Yellow Sea 1956 | vertical | 2 years tide readings at Qingdao. | 1956 | Superseded by Yellow Sea 1985 datum. | |
Baltic Sea | vertical | Average water level at Kronshtadt | |||
Caspian Sea | vertical | Defined as -28.0m Baltic datum | |||
Nivellement general de la France | vertical | Mean sea level at Marseille | The 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 Peil | vertical | Nederlandse Commissie voor Geodesie publication 30; 1993 | |||
Oostende | vertical | Mean low water during 1958 | 1958 | Nederlandse Commissie voor Geodesie publication 30; 1993 | |
Australian Height Datum | vertical | MSL 1966-68 at 30 gauges around coast. | 1968 | http://www.auslig.gov.au/geodesy | |
Australian Height Datum (Tasmania) | vertical | MSL 1972 at Hobart and Burnie. | 1972 | ||
Sea Level | vertical | An unspecified local vertical datum not recommended for use. | |||
Canadian Vertical Datum of 1928 | vertical | 1928 | |||
Piraeus Harbour 1986 | vertical | MSL determined during 1986. | 1986 | Geodesy Department; Public Pertoleum Corporation of Greece | |
Helsinki 1960 | vertical | MSL at Helsinki during 1960. | 1960 | www.nls.fi/maa/papers/kkj.html | |
Rikets hojdsystem 1970 | vertical | 1970 | National Land Survey of Sweden | ||
Nivellement general de la France - Lalle | vertical | Mean 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 - IGN69 | vertical | Mean sea level at Marseille. | 1969 | Normal heights. | Conseil National de l'Information Geographique groupe de travail 'Reseaux de Nivellement' recommendations v5.1 April 1994. |
Nivellement general de la France - IGN78 | vertical | Mean Sea Level Ajaccio | 1978 | Normal heights. | Conseil National de l'Information Geographique groupe de travail 'Reseaux de Nivellement' recommendations v5.1 April 1994. |
Maputo | vertical | Mean sea level at Maputo. | Direcção Nacional de Geografia e Cadastral (DINAGECA). | ||
Japanese Standard Levelling Datum 1949 | vertical | 24.4140 metres above mean sea level Tokyo Bay. | 1949 | Ministry of Construction; Japan. http://vldb.gsi.go.jp/sokuchi/datum/tokyodatum.html | |
PDO Height Datum 1993 | vertical | 1993 | Misclosure 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 Datum | vertical | Superceded 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 1960 | vertical | 1960 | In Vietnam replaced by Hon Dau in 1992. | ||
Hon Dau 1992 | vertical | 1992 | Supersedes Ha Tien in Vietnam. | ||
Landesnivellement 1902 | vertical | Origin at Repere Pierre du Niton (RPN) 373.6 metres above msl derived at Marseille. | 1902 | Bundesamt für Landestopographie | |
Landeshohennetz 1995 | vertical | Origin at Repere Pierre du Niton (RPN) 373.6 metres above msl derived at Marseille. | 1995 | Bundesamt für Landestopographie | |
European Vertical Reference Frame 2000 | vertical | Geopotential number at Normaal Amsterdams Peil is zero. | 2000 | Realised by geopotential numbers and normal heights of the United European Levelling Network. | |
Malin Head | vertical | Mean sea level between January 1960 and December 1969. | 1970 | Ordnance Survey of Ireland | |
Belfast Lough | vertical | Mean sea level between 1951 and 1956 at Clarendon Dock, Belfast. | 1957 | Malin Head (datum code 5130) used for 1:50,000 and smaller mapping. | Ordnance Survey of Northern Ireland |
Dansk Normal Nul | vertical | Kort & Matrikelstyrelsen | |||
AIOC 1995 | vertical | Average level of Caspian Sea at the Oil Rocks tide gauge June-September 1995. | 1995 | AIOC 1995 datum is 1.7m above Caspian datum and 26.3m below Baltic datum. | BP |
Black Sea | vertical | Black Sea datum is 0.4m below Baltic datum. | BP | ||
Hong Kong Principal Datum | vertical | 1.23m below the mean of 19 years (1965-83) observations of tide levels at North Point, Victoria Harbour. | 1980 | Survey and Mapping Office, Lands Department. Http://www.info.gov.hk/landsd/mapping/tindex.htm | |
Hong Kong Chart Datum | vertical | Approximates 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 1985 | vertical | 20 years tide readings at Qingdao. | 1985 | Supersedes Yellow Sea 1956 datum. | Guangdong Province Land Resource Information Centre |
Ordnance Datum Newlyn (Orkney Isles) | vertical | Connected to Newlyn datum by triangulation from the British mainland. | Ordnance Survey of Great Britain | ||
Fair Isle | vertical | Ordnance Survey of Great Britain | |||
Lerwick | vertical | Ordnance Survey of Great Britain | |||
Foula | vertical | Ordnance Survey of Great Britain | |||
Sule Skerry | vertical | Ordnance Survey of Great Britain | |||
North Rona | vertical | Ordnance Survey of Great Britain | |||
Stornoway | vertical | Ordnance Survey of Great Britain | |||
St. Kilda | vertical | Ordnance Survey of Great Britain | |||
Flannan Isles | vertical | Ordnance Survey of Great Britain | |||
St. Marys | vertical | Ordnance Survey of Great Britain | |||
Douglas | vertical | Ordnance Survey of Great Britain | |||
Fao | vertical | Established 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 Abbas | vertical | Average sea level at Bandar Abbass 1995-2001. | 2001 | Supersedes Fao (code 5149). | National Cartographic Centre of Iran |
Nivellement General Nouvelle Caledonie | vertical | Service Topographique de la Nouvelle Caledonie. | |||
Poolbeg | vertical | Low water mark of the spring tide on the 8 April 1837 at Poolbeg Lighthouse, Dublin. | 1837 | Superseded 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 1977 | vertical | Normal heights. | IGN Paris | ||
IGN 1987 | vertical | IGN Paris | |||
IGN 1988 | vertical | IGN Paris | |||
IGN 1989 | vertical | IGN Paris | |||
Not specified (based on Airy 1830 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Airy Modified 1849 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Australian National Spheroid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Bessel 1841 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Bessel Modified ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Bessel Namibia ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Clarke 1858 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Clarke 1866 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Clarke 1866 Michigan ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Clarke 1880 (Benoit) ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Clarke 1880 (IGN) ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Clarke 1880 (RGS) ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Clarke 1880 (Arc) ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Clarke 1880 (SGA 1922) ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Everest 1830 (1937 Adjustment) ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Everest 1830 (1967 Definition) ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Everest 1830 Modified ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on GRS 1980 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Helmert 1906 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Indonesian National Spheroid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on International 1924 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Krassowsky 1940 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on NWL 9D ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Plessis 1817 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Struve 1860 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on War Office ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on WGS 84 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on GEM 10C ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on OSU86F ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on OSU91A ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Clarke 1880 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Authalic Sphere) | geodetic | Included for coordinate reference systems where datum is unknown. Deprecated and superseded by 6047. | EPSG | ||
Not specified (based on GRS 1967 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Average Terrestrial System 1977 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Everest (1830 Definition) ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on WGS 72 ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Everest 1830 (1962 Definition) ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on Everest 1830 (1975 Definition) ellipsoid) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Not specified (based on GRS 1980 Authalic Sphere) | geodetic | Included for coordinate reference systems where datum is unknown. | EPSG | ||
Greek | geodetic | Fundamental point: Athens Observatory; latitude 37 deg 58 min 20.132 sec N; longitude 23 deg 42 min 58.815 sec E of Greenwich | See 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 1987 | geodetic | Fundamental 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. | 1987 | Superseded (old) Greek datum. Oil industry work based on ED50. | L. Portokalakis; Public Petroleum Corporation of Greece |
Average Terrestrial System 1977 | geodetic | 1977 | In 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 1966 | geodetic | Adjustment with fundamental point SF31 based on ED50 transformed to best fit the older VVJ adjustment. | 1966 | Adopted in 1970. | www.nls.fi/maa/papers/kkj.html |
Rikets koordinatsystem 1990 | geodetic | 1982 | Supersedes RT38 adjustment (datum code 6308) | National Land Survey of Sweden | |
Samboja | geodetic | Original origin station P2 Exc now destroyed. Extensions recomputed using Toran station T9 as origin. | Total Indonesia. | ||
Lithuania 1994 (ETRS89) | geodetic | Constrained to 4 ETRS89 points in Lithuania from the EUREF Baltic 1992 campaign.. | 1994 | Densification of ETRS89 during the 1992 Baltic campaign. | HNIT-Baltic GeoInfoServisas |
Tete | geodetic | Fundamental point: Tete. | Mozambique Direcção Nacional de Geografia e Cadastral (DINAGECA). | ||
Madzansua | geodetic | Fundamental point: Madzansua. | Superseded by transformation to Tete datum (datum code 6127). | Mozambique Direcção Nacional de Geografia e Cadastral (DINAGECA). | |
Observatario | geodetic | Fundamental point: Maputo observatory. | Superseded by transformation to Tete datum (datum code 6127). | Mozambique Direcção Nacional de Geografia e Cadastral (DINAGECA). | |
Moznet (ITRF94) | geodetic | ITRF 1994 epoch 20 | Mozambique Direcção Nacional de Geografia e Cadastral (DINAGECA). | ||
Indian 1960 | geodetic | DMA extension over IndoChina of the Indian 1954 network adjusted to better fit local geoid. | Also known as Indian (DMA Reduced). | ||
Final Datum 1958 | geodetic | Fundamental 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 1992 | geodetic | Densification from 4 ETRS89 points. | 1992 | Based 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 1993 | geodetic | Adjustment best fitted to Fahud network. | 1993 | Supersedes Fahud datum (code 6232). Maximum differences to Fahud adjustment are 20 metres. | Petroleum Development Oman |
Old Hawaiian | geodetic | Fundamental 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 Island | geodetic | Many 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 Island | geodetic | Fundamental 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 Island | geodetic | Fundamental 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 Rico | geodetic | Fundamental point: Cardona Island Lighthouse. Latitude:17 deg 57 min 31.40 sec N; Longitude: 66 deg 38 min 07.53 sec W (of Greenwich). | 1901 | NADCON 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 System | geodetic | 1998 | Supersedes ATS77 from 1999 in New Brunswick. | Service New Brunswick Land and Information Standards Manual | |
Israel | geodetic | Fundamental 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 1965 | geodetic | Fundamental point: T5 Banco. Latitude: 5 deg 18 min 50.5 sec N; Longitude: 4 deg 02 min 05.1 sec W (of Greenwich). | 1965 | IGN Paris. | |
Abidjan 1987 | geodetic | Fundamental point: Abidjan I. Latitude: 5 deg 18 min 51.01 sec N; Longitude: 4 deg 02 min 06.04 sec W (of Greenwich). | 1987 | IGN Paris. | |
Kalianpur 1937 | geodetic | Fundamental point: Kalianpur. Latitude: 24 deg 07 min 11.260 sec N; Longitude: 77 deg 39 min 17.570 sec E (of Greenwich). | 1937 | Supersedes 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 1962 | geodetic | Fundamental point: Kalianpur. Latitude: 24 deg 07 min 11.260 sec N; Longitude: 77 deg 39 min 17.570 sec E (of Greenwich). | 1962 | 1937 adjustment rescaled by ratio metric conversions of Indian foot (1937) to Indian foot (1962). | |
Kalianpur 1975 | geodetic | Fundamental point: Kalianpur. Latitude: 24 deg 07 min 11.260 sec N; Longitude: 77 deg 39 min 17.570 sec E (of Greenwich). | 1975 | 1937 adjustment rescaled by ratio metric conversions of Indian foot (1937) to Indian foot (1975). | |
Hanoi 1972 | geodetic | 1972 | PetroVietnam | ||
Hartebeesthoek94 | geodetic | Coincident with ITRF91 (1994.0) at Hartebeesthoek astronomical observatory near Pretoria. | 1994 | Supersedes Cape datum (code 6222). | Directorate of Surveys and Mapping; http://w3sli.wcape.gov.za/surveys/mapping/wgs84.htm |
CH1903 | geodetic | Fundamental point: Old Bern observatory. Latitude: 46 deg 57 min 08.660 sec N; Longitude: 7 deg 26 min 22.500 sec E (of Greenwich). | 1903 | Bundesamt für Landestopographie | |
CH1903+ | geodetic | Fundamental 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 1995 | geodetic | ETRF89 at 1993.0 | 1995 | Bundesamt für Landestopographie. Aufbau der Landesvermessung der Schweiz 'LV95' Teil 3: Terrestrische Bezugssysteme und Bezugsrahmen. L+T 1999. | |
NAD83 (High Accuracy Regional Network) | geodetic | National Geodetic Survey | |||
Rassadiran | geodetic | Fundamental 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) | geodetic | Extension of ED50 over Iran. | 1977 | Sometimes referred to as ED50-ED77. | National Cartographic Centre of Iran |
Dabola 1981 | geodetic | 1981 | IGN Paris | ||
Jednotne Trigonometricke Site Katastralni | geodetic | Modification 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 Dillon | geodetic | Fundamental 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 1955 | geodetic | Fundamental point: Naparima. Latitude: 10 deg 16 min 44.860 sec N; Longitude: 61 deg 27 min 34.620 sec W (of Greenwich). | 1955 | Naparima 1972 is an extension of the Naparima 1955 network of Trinidad to include Tobago. | Ordnance Survey International. |
European Libyan Datum 1979 | geodetic | Extension of ED50 over Libya. | 1979 | Brown and Root | |
Chos Malal 1914 | geodetic | Chos Malal police station. | 1914 | Also known as Quini-Huao. Superseded by Campo Inchauspe (code 6221). | Various oil company records. |
Pampa del Castillo | geodetic | Used in Comodoro Rivadavia area. Superseded by Campo Inchauspe (code 6221). | Various oil company records. | ||
Korean Datum 1985 | geodetic | Fundamental point: Suwon; latitude 37 deg 16 min 31.9034 sec N; longitude 127 deg 03 min 05.1451 sec E of Greenwich. | 1985 | Clifford J. Mugnier; in Photogrammetric Engineering & Remote Sensing November 1999. http://www.asprs.org/resources.html | |
Yemen National Geodetic Network 1996 | geodetic | Sana'a IGN reference marker | 1996 | IGN Paris | |
South Yemen | geodetic | IGN Paris | |||
Bissau | geodetic | NIMA TR8350.2 | |||
Korean Datum 1995 | geodetic | 1995 | NIMA TR8350.2 ftp://164.214.2.65/pub/gg/tr8350.2/changes.pdf | ||
New Zealand Geodetic Datum 2000 | geodetic | Based on ITRF96 at epoch 2000.0 | 2000 | Land Information New Zealand. http://www.linz.govt.nz/rcs/linz/pub/web/root/core/SurveySystem/GeodeticInfo/GeodeticDatums/nzgd2000factsheet/index.jsp | |
Accra | geodetic | Fundamental 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 1962 | geodetic | Fundamental point: Betty 13 eccentric. Latitude: 14 deg 20 min 08.34 sec S; longitude: 170 deg 42 min 52.25 sec W | 1962 | NIMA TR8350.2 revision of January 2000. Oil industry sources for origin description details. | |
Sistema de Referencia Geocentrico para America del Sur | geodetic | ITRF94 epoch 1995.42. | 1995 | Realised by a frame of 58 stations observed in 1995 and adjusted in the ITRF94. | NIMA TR8350.2 revision of January 2000. |
Reseau Geodesique Francais 1993 | geodetic | Coincident with ETRS89 at epoch 1993.0 | 1993 | http://www.ign.fr/fr/PI/activites/geodesie/rgf93/RGF/rgf93.html via TotalFinaElf | |
Posiciones Geodesicas Argentinas | geodetic | 1994 | "Una red geodésica de 127 puntos materializados | ||
http://www.igm.gov.ar/posgar.html | EPSG | 2000-10-19 00:00:00 | |||
IRENET95 | geodetic | ETRS89 stations in Ireland | 1995 | Densification of ETRS89 | Ordnance Survey of Ireland |
Sierra Leone Colony 1924 | geodetic | Fundamental point: Kortright. Latitude: 8 deg 28 min 44.4 sec N; Longitude: 13 deg 13 min 03.81 sec W (of Greenwich). | 1924 | Ordnance Survey International. | |
Sierra Leone 1968 | geodetic | Fundamental point: SLX2 Astro. Latitude: 8 deg 27 min 17.567 sec N; Longitude: 12 deg 49 min 40.186 sec W (of Greenwich). | 1968 | Extension and readjustment with additional observations of 1960 network. Coordinates of 1960 stations change by less than 3 metres. | Ordnance Survey International. |
Australian Antarctic Datum 1998 | geodetic | 1998 | Standards Australia | ||
Pulkovo 1942/83 | geodetic | Fundamental point: Pulkovo observatory. Latitude: 59 deg 46 min 18.550 sec N; Longitude: 30 deg 19 min 42.090 sec E (of Greenwich). | 1983 | International 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 1942/58 | geodetic | Fundamental point: Pulkovo observatory. Latitude: 59 deg 46 min 18.550 sec N; Longitude: 30 deg 19 min 42.090 sec E (of Greenwich). | 1958 | Glowny Urzad Geodezji i Kartografii via EuroGeographics; http://crs.ifag.de/ | |
Estonia 1997 | geodetic | Densification of ETRS89 during EUREF-ESTONIA97 campaign through transformation from ITRF96 epoch 1997.56. | 1997 | Supersedes Estonia 1992 adjustment (code 6133). | Estonian National Land Board via EuroGeographics; http://crs.ifag.de/ |
Luxembourg 1930 | geodetic | Fundamental 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) | 1930 | Administration du Cadastre et de la Topographie via EuroGeographics; http://crs.ifag.de/ | |
Azores Occidental Islands 1939 | geodetic | Fundamental point: Observatario Meteorologico Flores. | 1939 | Instituto Geografico e Cadastral Lisbon via EuroGeographics; http://crs.ifag.de/ | |
Azores Central Islands 1948 | geodetic | Fundamental point: Graciosa south west base. Latitude: 39 deg 03 min 54.934 sec N; longitude: 28 deg 02 min 23.882 sec W | 1948 | Superseded 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 1940 | geodetic | Fundamental point: Forte de São Bras. | 1940 | Superseded by 1995 adjustment (datum code 6664). | Instituto Geografico e Cadastral Lisbon via EuroGeographics; http://crs.ifag.de/ |
Madeira 1936 | geodetic | Fundamental point: Madeira SE Base. | 1936 | Instituto Geografico e Cadastral Lisbon via EuroGeographics; http://crs.ifag.de/ | |
OSNI 1952 | geodetic | Position 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. | 1952 | Superseded by Geodetic Datum of 1965 alias 1975 Mapping Adjustment or TM75 (datum code 6300). | Ordnance Survey of Northern Ireland. |
Red Geodesica Venezolana | geodetic | Realised by a frame of 67 stations observed in 1995 as a densification of the SIRGAS campaign and adjusted in the ITRF94. | 2000 | Servicio Autonomo de Geografia y Cartografia Nacional. | |
Posiciones Geodesicas Argentinas 1998 | geodetic | A 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. | 1998 | Una 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 1987 | geodetic | 1987 | EuroGeographics; http://crs.ifag.de/ | ||
Douala 1948 | geodetic | South pillar of Doula base; 4deg 00min 40.64sec N, 9deg 42min 30.41sec E | 1948 | Superseded by Manoca 1962 datum (code 6193). | TotalFinaElf |
Manoca 1962 | geodetic | Reservoir centre at the Manoca tower ('tube Suel'), 3deg 51min 49.896sec N, 9deg 36min 49.347sec E. | 1962 | The 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 1927 | geodetic | Fundamental point: Station 7008. Latitude: 64 deg 31 min 06.27 sec N; Longitude: 51 deg 12 min 24.86 sec W (of Greenwich). | 1927 | Kort & Matrikelstyrelsen, Copenhagen. Origin coordinates from NIMA http://earth-info.nima.mil/GandG/historic/hdatums.html | |
Scoresbysund 1952 | geodetic | 1952 | Kort & Matrikelstyrelsen, Copenhagen. | ||
Ammassalik 1958 | geodetic | 1958 | Kort & Matrikelstyrelsen, Copenhagen. | ||
Garoua | geodetic | Fundamental ;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 | ||
Kousseri | geodetic | IGN astronomical station Dabanga; 11deg 55min 05.9sec N 14deg 38min 40.8sec E. | TotalFinaElf | ||
Egypt 1930 | geodetic | Fundamental point: Station F1 (Venus). Latitude: 30 deg 01 min 42.86 sec N; Longitude: 31 deg 16 min 37.05 sec E (of Greenwich). | 1930 | Note 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 1995 | geodetic | Fundamental 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 | |
Adindan | geodetic | Fundamental 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 1966 | geodetic | Fundamental point: Johnson Memorial Cairn. Latitude: 25 deg 56 min 54.5515 sec S; Longitude: 133 deg 12 min 30.0771 sec E (of Greenwich). | 1966 | Australian Map Grid Technical Manual. National Mapping Council of Australia Technical Publication 7; 1972. | |
Australian Geodetic Datum 1984 | geodetic | Fundamental point: Johnson Memorial Cairn. Latitude: 25 deg 56 min 54.5515 sec S; Longitude: 133 deg 12 min 30.0771 sec E (of Greenwich). | 1984 | Uses 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 1970 | geodetic | Fundamental 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 | ||
Afgooye | geodetic | ||||
Agadez | geodetic | ||||
Lisbon 1937 | geodetic | Fundamental 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). | 1937 | Supersedes Lisbon 1890 adjustment (which used Bessel 1841 ellipsoid). | Instituto Geografico e Cadastral; Lisbon |
Aratu | geodetic | ||||
Arc 1950 | geodetic | Fundamental point: Buffelsfontein. Latitude: 33 deg 59 min 32.000 sec S; Longitude: 25 deg 30 min 44.622 sec E (of Greenwich). | 1950 | ||
Arc 1960 | geodetic | Fundamental point: Buffelsfontein. Latitude: 33 deg 59 min 32.000 sec S; Longitude: 25 deg 30 min 44.622 sec E (of Greenwich). | 1960 | ||
Batavia | geodetic | Fundamental 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 1938 | geodetic | Fundamental 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). | 1938 | Ordnance Survey of Great Britain. | |
Beduaram | geodetic | ||||
Beijing 1954 | geodetic | 1954 | |||
Reseau National Belge 1950 | geodetic | Fundamental 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 1957 | geodetic | Fundamental point: Fort George base. Latitude 32 deg 22 min 44.36 sec N; longitude 64 deg 40 min 58.11 sec W (of Greenwich). | 1957 | Various oil industry sources. | |
Bogota 1975 | geodetic | Fundamental point: Bogota observatory. Latitude: 4 deg 35 min 56.570 sec N; Longitude: 74 deg 4 min 51.300 sec W (of Greenwich). | 1975 | Supersedes 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 Rimpah | geodetic | 2deg 00min 40.16sec S 105deg 51min 39.76sec E (of Greenwich). | |||
Camacupa | geodetic | Fundamental point: Campo de Aviaçao. Latitude: 12 deg 01 min 19.070 sec South, Longitude = 17 deg 27 min 19.800 sec East of Greenwich | 1948 | Clifford J. Mugnier, PE&RS journal, March 2001. | |
Campo Inchauspe | geodetic | Fundamental 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 | ||
Cape | geodetic | Fundamental 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. | ||
Carthage | geodetic | Fundamental 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. | |||
Chua | geodetic | Fundamental 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 Alegre | geodetic | Fundamental 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'Ivoire | geodetic | ||||
Deir ez Zor | geodetic | Fundamental point: Trig. 254 Deir. Latitude: 35 deg 21 min 49.975 sec N; Longitude: 40 deg 05 min 46.770 sec E (of Greenwich). | |||
Douala | geodetic | ||||
Egypt 1907 | geodetic | Fundamental 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 1950 | geodetic | Fundamental point: Potsdam (Helmert Tower). Latitude: 52 deg 22 min 51.4456 sec N; Longitude: 13 deg 3 min 58.9283 sec E (of Greenwich). | 1950 | EuroGeographics; http://crs.ifag.de/ | |
European Datum 1987 | geodetic | Fundamental 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 | ||
Fahud | geodetic | Fundamental 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 1970 | geodetic | 1970 | |||
Garoua | geodetic | The 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 Francaise | geodetic | ||||
Hu Tzu Shan | geodetic | Fundamental 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 1972 | geodetic | Fundamental point: Szolohegy. Latitude: 47 deg 17 min 32,6156 sec N; Longitude 19 deg 36 min 09.9865 sec E; geoid height 6.56m. | 1972 | http://lazarus.elte.hu/gb/geodez/geod3.htm | |
Indonesian Datum 1974 | geodetic | Fundamental 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. | 1974 | Bakosurtanal 1979 paper by Jacob Rais. | |
Indian 1954 | geodetic | Extension of Kalianpur 1937 over Myanmar and Thailand. | 1954 | ||
Indian 1975 | geodetic | Fundamental point: Khau Sakaerang | 1975 | ||
Jamaica 1875 | geodetic | Fundamental 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 1969 | geodetic | Fundamental 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 1880 | geodetic | Fundamental point: Kalianpur. Latitude: 24 deg 07 min 11.260 sec N; Longitude: 77 deg 39 min 17.570 sec E (of Greenwich). | 1880 | Includes 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. |
Kandawala | geodetic | ||||
Kertau | geodetic | Fundamental point: Kertau. Latitude: 3 deg 27 min 50.710 sec N; Longitude: 102 deg 37 min 24.550 sec E (of Greenwich). | |||
Kuwait Oil Company | geodetic | ||||
La Canoa | geodetic | Fundamental 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 1956 | geodetic | Fundamental point: La Canoa. Latitude: 8 deg 34 min 17.170 sec N; Longitude: 63 deg 51 min 34.880 sec W (of Greenwich). | 1956 | Same origin as La Canoa datum. | |
Lake | geodetic | Fundamental point: Maracaibo Cathedral. Latitude: 10 deg 38 min 34.678 sec N; Longitude: 71 deg 36 min 20.224 sec W (of Greenwich). | |||
Leigon | geodetic | Fundamental 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 1964 | geodetic | Fundamental point: Robertsfield. Latitude: 6 deg 13 min 53.02 sec N; Longitude: 10 deg 21 min 35.44 sec W (of Greenwich). | 1964 | NIMA http://earth-info.nima.mil/GandG/historic/hdatums.html | |
Lome | geodetic | ||||
Luzon 1911 | geodetic | Fundamental 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 1963 | geodetic | Chile-Argentina boundary survey. | 1963 | Used in Tierra del Fuego. | Various oil company records. |
Herat North | geodetic | Fundamental 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 1971 | geodetic | Fundamental point: Mahe | 1971 | ||
Makassar | geodetic | Fundamental 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 1989 | geodetic | "Fixed to the stable part of the Eurasian continental | |||
1989 | 7019 | 8901 | 1298 | 2003-08-14 00:00:00 | 97.11 97.55 99.111 2000.72 2003.26 |
Malongo 1987 | geodetic | Fundamental 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). | 1987 | Offshore extension of Mhast datum (6264) using Transit translocation. | Chevron Petroleum Technology. |
Manoca | geodetic | ||||
Merchich | geodetic | Fundamental point: Merchich. Latitude: 33 deg 26 min 59.672 sec N; Longitude: 7deg 33 min 27.295sec W (of Greenwich). | 1922 | ||
Massawa | geodetic | ||||
Minna | geodetic | Fundamental 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 | ||
Mhast | geodetic | ||||
Monte Mario | geodetic | Fundamental point: Monte Mario. Latitude: 41 deg 55 min 25.51 sec N; Longitude: 12 deg 27 min 08.4 sec E (of Greenwich). | 1940 | Superseded Genova datum, Bessel 1841 ellipsoid, from 1940. | |
M'poraloko | geodetic | ||||
North American Datum 1927 | geodetic | Fundamental point: Meade's Ranch. Latitude: 39 deg 13 min 26.686 sec N; Longitude: 98 deg 32 min 30.506 sec W (of Greenwich). | 1927 | Superseded by North American Datum 1983 (NAD83) | |
NAD Michigan | geodetic | Fundamental 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 1983 | geodetic | Origin at geocentre. | 1986 | ||
Nahrwan 1967 | geodetic | Fundamental 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 1972 | geodetic | Fundamental point: Naparima. Latitude: 10 deg 16 min 44.860 sec N; Longitude: 61 deg 27 min 34.620 sec W (of Greenwich). | 1972 | Naparima 1972 is an extension of the Naparima 1955 network of Trinidad to include Tobago. | Ordnance Survey International. |
New Zealand Geodetic Datum 1949 | geodetic | Fundamental point: Papatahi. Latitude: 41 deg 19 min 8.900 sec S; Longitude: 175 deg 02 min 51.000 sec E (of Greenwich). | 1949 | ||
NGO 1948 | geodetic | Fundamental point: Oslo observatory. Latitude: 59 deg 54 min 43.7 sec N; Longitude: 10 deg 43 min 22.5 sec E (of Greenwich). | 1948 | EuroGeographics; http://crs.ifag.de/ | |
Datum 73 | geodetic | Fundamental point: TF4, Melrica. Latitude: 39 deg 41 min 37.30 sec N; Longitude: 8 deg 07 min 53.31 sec W (of Greenwich). | 1964 | Instituto Geografico e Cadastral; Lisbon | |
Nouvelle Triangulation Francaise | geodetic | Fundamental 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-2 | geodetic | Transit precise ephemeris before 1991. | |||
OSGB 1936 | geodetic | Fundamental 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. | 1936 | Ordnance Survey of Great Britain | |
OSGB 1970 (SN) | geodetic | Fundamental 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) 1980 | geodetic | Fundamental point: Herstmonceux. Latitude: 50 deg 51 min 55.271 sec N; Longitude: 0 deg 20 min 45.882 sec E (of Greenwich). | 1980 | ||
Padang 1884 | geodetic | Fundamental point: Padang | 1884 | ||
Palestine 1923 | geodetic | Fundamental 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 Noire | geodetic | Fundamental point: Point Noire Astro. Latitude: 4 deg 47 min 00.10 sec S; Longitude: 11 deg 51 min 01.55 sec E (of Greenwich). | 1960 | Elf | |
Geocentric Datum of Australia 1994 | geodetic | ITRF92 at epoch 1994.0 | 1994 | Coincident 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 1942 | geodetic | Fundamental 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 1974 | geodetic | Fundamental point: Station G3 | 1974 | ||
Qatar 1948 | geodetic | Fundamental 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 | ||
Qornoq | geodetic | 1927 | |||
Loma Quintana | geodetic | Fundamental point: Loma Quintana | Superseded by La Canoa (code 6247). | ||
Amersfoort | geodetic | Fundamental 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 1969 | geodetic | 1969 | SAD69 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 1943 | geodetic | 1943 | |||
Schwarzeck | geodetic | Private Communication, Directorate of Surveys and Land Information, Cape Town. | |||
Segora | geodetic | ||||
Serindung | geodetic | Fundamental 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 | ||
Sudan | geodetic | ||||
Tananarive 1925 | geodetic | Fundamental point: Tananarive observatory. Latitude: 18 deg 55 min 02.10 sec S; Longitude: 47 deg 33 min 06.75 sec E (of Greenwich). | 2025 | IGN Paris | |
Timbalai 1948 | geodetic | Fundamental point: Timbalai. Latitude: 5 deg 17 min 3.548 sec N; Longitude: 115 deg 10 min 56.409 sec E (of Greenwich). | 1948 | ||
TM65 | geodetic | Adjusted to best mean fit 12 stations of the OSNI 1952 primary adjustment. | 1965 | Differences 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 1965 | geodetic | Adjusted 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. | 1975 | Differences 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. |
Tokyo | geodetic | Fundamental 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 1903 | geodetic | Harbour 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) | 1903 | Clifford J. Mugnier, PE&RS November 2000. | |
Trucial Coast 1948 | geodetic | Fundamental point: TC1. Latitude: 25 deg 23 min 50.190 sec N; Longitude: 55 deg 26 min 43.950 sec E (of Greenwich). | 1948 | ||
Voirol 1875 | geodetic | Fundamental 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. | 1875 | Superseded by Voirol 1879 (code 6671). | IGN Paris |
Bern 1938 | geodetic | Fundamental point: Old Bern observatory. Latitude: 46 deg 57 min 7.890 sec N; Longitude: 7 deg 26 min 22.335 sec E (of Greenwich). | 1938 | This 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 1959 | geodetic | Coordinates of primary network readjusted on ED50 datum and then transformed conformally to Clarke 1880 (RGS) ellipsoid. | 1959 | Sometimes 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 1938 | geodetic | Fundamental point: Stockholm observatory | 1938 | Superseded by RT90 adjustment (datum code 6124) | |
Yacare | geodetic | Fundamental 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 | ||
Yoff | geodetic | Fundamental point: Yoff. Latitude: 14 deg 44 min 41.62 sec N; Longitude: 17 deg 29 min 07.02 sec W of Greenwich. | |||
Zanderij | geodetic | ||||
Militar-Geographische Institut | geodetic | Fundamental point: Hermannskogel. Latitude: 48 deg 16 min 15.29 sec N; Longitude: 16 deg 17 min 41.06 sec E (of Greenwich). | 1901 | Croatia 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 1972 | geodetic | Fundamental 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 Hauptdreiecksnetz | geodetic | Fundamental point: Rauenberg. Latitude: 52 deg 27 min 12.021 sec N; Longitude: 13 deg 22 min 04.928 sec E (of Greenwich). | |||
Conakry 1905 | geodetic | Fundamental point: Conakry. Latitude: 10.573766g N; Longitude: 17.833682g W (of Paris). | 1905 | ||
Dealul Piscului 1933 | geodetic | Fundamental point: latitude 44 deg 24 min 33.9606 sec N; longitude 26 deg 06 min 44.8772 sec E (of Greenwich). | 1933 | Superseded by 1970 adjustment (datum code 6317) | Institute for Geodesy Photogrametry and Land Management |
Dealul Piscului 1970 | geodetic | Fundamental point: latitude 44 deg 24 min 23.7709 sec N; longitude 26deg 06 min 44.1265 sec E (of Greenwich). | 1970 | Supersedes 1933 adjustment (datum code 6316) | Institute for Geodesy Photogrametry and Land Management |
National Geodetic Network | geodetic | ||||
Kuwait Utility | geodetic | ||||
World Geodetic System 1972 | geodetic | Developed from a worldwide distribution of terrestrial and geodetic satellite observations and defined through a set of station coordinates. | 1972 | Used 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 Ephemeris | geodetic | 1972 | Alleged 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 1984 | geodetic | Defined 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. | 1984 | EPSG'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 1957 | geodetic | Fundamental point: station A4. | 1957 | Ordnance Survey of Great Britain. | |
Antigua 1943 | geodetic | Fundamental point: station A14. | 1943 | Ordnance Survey of Great Britain. | |
Dominica 1945 | geodetic | Fundamental point: station M12. | 1945 | Ordnance Survey of Great Britain. | |
Grenada 1953 | geodetic | Fundamental point: station GS8. | 1953 | Ordnance Survey of Great Britain. | |
Montserrat 1958 | geodetic | Fundamental point: station M36. | 1958 | Ordnance Survey of Great Britain. | |
St. Kitts 1955 | geodetic | Fundamental point: station K12. | 1955 | Ordnance Survey of Great Britain. | |
St. Lucia 1955 | geodetic | Fundamental point: station DCS3. | 1955 | Ordnance Survey of Great Britain. | |
St. Vincent 1945 | geodetic | Fundamental point: station V1. | 1945 | Ordnance Survey of Great Britain. | |
North American Datum 1927 (1976) | geodetic | Fundamental point: Meade's Ranch. Latitude: 39 deg 13 min 26.686 sec N; Longitude: 98 deg 32 min 30.506 sec W (of Greenwich). | 1976 | NAD27(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) | geodetic | Fundamental point: Meade's Ranch. Latitude: 39 deg 13 min 26.686 sec N; Longitude: 98 deg 32 min 30.506 sec W (of Greenwich). | 1977 | NAD27 (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 1980 | geodetic | 1980 | BP | ||
Hong Kong 1980 | geodetic | Fundamental 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. | 1980 | Supersedes 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 2000 | geodetic | ITRF94 at epoch 1997.0 | 2000 | Instigated 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 Segara | geodetic | Station P5 (Gunung Segara). Latitude 0deg 32min 12.83sec S, longitude 117deg 08min 48.47sec E (of Greenwich). | TotalFinaElf. | ||
Qatar National Datum 1995 | geodetic | Defined by transformation from WGS 84 - see coordinate operation code 1840. | 1995 | Qatar Centre for Geographic Information. | |
Porto Santo 1936 | geodetic | SE Base on Porto Santo island. | 1936 | Superseded by 1995 adjustment (datum code 6663). For Selvagens see Selvagem Grande (code 6616). | Instituto Geografico e Cadastral Lisbon http://www.igeo.pt |
Selvagem Grande | geodetic | Instituto Geografico e Cadastral Lisbon http://www.igeo.pt | |||
South American Datum 1969 | geodetic | Fundamental 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). | 1969 | SAD69 uses GRS 1967 ellipsoid but with 1/f to exactly 2 decimal places. | DMA 1974. |
SWEREF99 | geodetic | Densification of ETRS89. | 1982 | National Land Survey of Sweden http://www.lantmateriet.se | |
Point 58 | geodetic | Fundamental point: Point 58. Latitude: 3 deg 58 min 37.040 sec N; Longitude: 12 deg 52 min 44.045 sec E (of Greenwich). | 1969 | Used 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 Marigot | geodetic | Superseded by RRAF 1991 (datum code 6640). | IGN Paris. | ||
Sainte Anne | geodetic | Superseded by RRAF 1991 (datum code 6640). | IGN Paris. | ||
Centre Spatial Guyanais 1967 | geodetic | Fundamental point: Kourou-Diane. Latitude: 5 deg 15 min 53.699 sec N; Longitude: 52 deg 48 min 09.149 sec W (of Greenwich). | 1967 | Superseded by RGFG95 (code 6624). | IGN Paris. |
Reseau Geodesique Francais Guyane 1995 | geodetic | ITRF93 at epoch 1995.0 | 1995 | Supersedes CSG67 (datum code 6623). | IGN Paris. |
Fort Desaix | geodetic | Fundamental 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 Neiges | geodetic | Fundamental 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 1992 | geodetic | ITRF91 at epoch 93.0 | 1992 | Supersedes Piton des Neiges (code 6626). | IGN Paris. |
Tahiti | geodetic | Tahiti North Base | IGN Paris. | ||
Tahaa | geodetic | IGN Paris. | |||
IGN72 Nuku Hiva | geodetic | 1972 | IGN Paris. | ||
K0 1949 | geodetic | 1949 | IGN Paris. | ||
Combani 1950 | geodetic | 1950 | IGN Paris. | ||
IGN56 Lifou | geodetic | 1956 | Service Topographique de la Nouvelle Caledonie. | ||
IGN72 Grande Terre | geodetic | 1972 | Service Topographique de la Nouvelle Caledonie. | ||
ST87 Ouvea | geodetic | 1987 | Service Topographique de la Nouvelle Caledonie. | ||
Petrels 1972 | geodetic | Fundamental 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). | 1972 | IGN Paris. | |
Pointe Geologie Perroud 1950 | geodetic | Fundamental 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). | 1950 | IGN Paris. | |
Saint Pierre et Miquelon 1950 | geodetic | 1950 | IGN Paris. | ||
MOP78 | geodetic | 1978 | IGN Paris. | ||
Reseau de Reference des Antilles Francaises 1991 | geodetic | WGS 84 coordinates of a single station determined during the 1988 Tango mission. | 1991 | Supersedes Fort Marigot and Sainte Anne (datum codes 6621-22) in Guadeloupe and Fort Desaix (datum code 6625) in Martinique. | IGN Paris. |
IGN53 Mare | geodetic | 1953 | Service Topographique de la Nouvelle Caledonie. | ||
ST84 Ile des Pins | geodetic | 1984 | Service Topographique de la Nouvelle Caledonie. | ||
ST71 Belep | geodetic | 1971 | Service Topographique de la Nouvelle Caledonie. | ||
NEA74 Noumea | geodetic | 1974 | Service Topographique de la Nouvelle Caledonie. | ||
Reseau Geodesique Nouvelle Caledonie 1991 | geodetic | ITRF90 at 1989.0 | 1989 | Service Topographique de la Nouvelle Caledonie. | |
Grand Comoros | geodetic | Fundamental 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 1988 | geodetic | Origin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS). | 1988 | Realisation 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 1989 | geodetic | Origin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS). | 1989 | Realisation 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 1990 | geodetic | Origin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS). | 1990 | Realisation 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 1991 | geodetic | Origin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS). | 1991 | Realisation 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 1992 | geodetic | Origin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS). | 1992 | Realisation 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 1993 | geodetic | Origin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS). | 1993 | Realisation 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 1994 | geodetic | Origin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS). | 1994 | Realisation 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 1996 | geodetic | Origin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS). | 1996 | Realisation 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 1997 | geodetic | Origin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS). | 1997 | Realisation 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 2000 | geodetic | Origin at geocentre, orientated to the BIH Terrestrial System at 1984.0. Datum defined by a set of 3-dimensional Cartesian station coordinates (SCS). | 2000 | Realisation of the IERS Terrestrial Reference System (ITRS) at 2000.0. Supersedes ITRF97 (code 6655). | IGN Paris http://lareg.ensg.ign.fr/ITRF |
Reykjavik 1900 | geodetic | Fundamental point: Latitude: 64 deg 08 min 31.88 sec N; Longitude: 21 deg 55 min 51.15 sec W (of Greenwich). | 1900 | Landmaelingar Islands (National Survey of Iceland). | |
Hjorsey 1955 | geodetic | Fundamental point: Latitude: 64 deg 31 min 29.26 sec N; Longitude: 22 deg 22 min 05.84 sec W (of Greenwich). | 1955 | Landmaelingar Islands (National Survey of Iceland). | |
Islands Network 1993 | geodetic | ITRF93 at 1993.6. | 1996 | Landmaelingar Islands (National Survey of Iceland). | |
Helle 1954 | geodetic | 1954 | Statens kartverk. | ||
Latvia 1992 | geodetic | Constrained to 4 ETRS89 points in Latvia from the EUREF Baltic 1992 campaign. | 1992 | Densification 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 1995 | geodetic | SE 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.html | EPSG | 2003-08-14 00:00:00 | |||
Azores Oriental Islands 1995 | geodetic | Fundamental point: Forte de São Bras. Origin and orientation constrained to those of the 1940 adjustment. | 1940 | Classical 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 1995 | geodetic | Fundamental point: Graciosa south west base. Origin and orientation constrained to those of the 1948 adjustment. | 1948 | Classical and GPS observations. Supersedes 1948 adjustment (datum code 6183). | Instituto Geografico e Cadastral Lisbon; http://www.igeo.pt/IGEO/portugues/Frameset-produtos.html |
Lisbon 1890 | geodetic | Fundamental 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. | 1937 | Superseded by Lisbon 1937 adjustment (which uses International 1924 ellipsoid). | Instituto Geografico e Cadastral Lisbon http://www.igeo.pt |
Iraq-Kuwait Boundary Datum 1992 | geodetic | Four stations established between September and December 1991 determined by GPS and Doppler observations. | 1992 | United Nations Iraq-Kuwait Boundary Demarcation Commission, Final Report, May 1993. | |
European Datum 1979 | geodetic | Fundamental point: Potsdam (Helmert Tower). Latitude: 52 deg 22 min 51.4456 sec N; Longitude: 13 deg 3 min 58.9283 sec E (of Greenwich). | 1979 | Superseded by 1987 adjustment. | |
Istituto Geografico Militaire 1995 | geodetic | Network of 1296 points observed 1992-1995 and adjusted in 1996 constrained to 9 ETRS89 points. Densification of ETRS89 in Italy. | 1995 | ENI | |
Voirol 1879 | geodetic | Fundamental 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. | 1879 | Supersedes Voirol 1875 (code 6304). | IGN Paris |
CH1903 (Bern) | geodetic | Fundamental point: Old Bern observatory. Latitude: 46 deg 57 min 08.660 sec N; Longitude: 0 deg E of Bern. | 1903 | Bundesamt für Landestopographie | |
Bogota 1975 (Bogota) | geodetic | Fundamental point: Bogota observatory. Latitude: 4 deg 35 min 56.570 sec N; Longitude: 0 deg E of Bogota. | 1975 | ||
Lisbon 1937 (Lisbon) | geodetic | Fundamental point: Castelo Sao Jorge; Lisbon. Latitude: 38 deg 42 min 43.631 sec N; Longitude: 0 | 1937 | Supersedes Lisbon 1890 adjustment (which used Bessel 1841 ellipsoid). | Instituto Geografico e Cadastral; Lisbon |
Makassar (Jakarta) | geodetic | Fundamental 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) | geodetic | Fundamental point: Hermannskogel. Latitude: 48 deg 16 min 15.29 sec N; Longitude: 33 deg 57 min 41.06 sec E of Ferro. | 1901 | Bundesamt fur Eich- und Vermessungswesen; Wien | |
Monte Mario (Rome) | geodetic | Fundamental 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) | geodetic | Fundamental point: Pantheon. Latitude: 54.273618g N; Longitude: 0.0106921g E (of Paris). | 1895 | ||
Padang 1884 (Jakarta) | geodetic | Fundamental point: Padang | 1884 | ||
Reseau National Belge 1950 (Brussels) | geodetic | Fundamental 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) | geodetic | Fundamental point: Tananarive observatory. Latitude: 21.0191667g S; Longitude: 50.23849537g E (of Paris) | 1925 | IGN Paris | |
Voirol 1875 (Paris) | geodetic | Fundamental point: Voirol. Latitude: 40.83578 grads N; Longitude: 0.78873 grads E of Paris. | 1875 | IGN Paris | |
Batavia (Jakarta) | geodetic | Fundamental 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) | geodetic | Fundamental point: Stockholm observatory | 1938 | Superseded by RT90 adjustment (datum code 6124) | |
Greek (Athens) | geodetic | Fundamental 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) | geodetic | Fundamental point: Carthage. Latitude: 40.9464506g N; Longitude: 8.8724368g E (of Paris). | |||
NGO 1948 (Oslo) | geodetic | Fundamental 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) | geodetic | Modification of Austrian MGI (Ferro) datum. | 1920 | "Research Institute for Geodesy Topography and Cartography (VUGTK); |