Taken from ED50 to WGS 84 (14) (code 8046). In 1998 agreed that within the accuracy of that transformation WGS 84 equates to ETRS89 and the transformation would relate ED50 to ETRS89.
Statens Kartverk.
2001-06-05
metre
EPSG
General Command of Mapping via EuroGeographics; http://crs.bkg.bund.de/crs-eu/
2006-07-22
Cadastre, engineering survey, topographic mapping (large scale).
Also found with zone number prefix to false easting - see ED50 / 3-degree Gauss-Kruger zone 9 (code 2206).
Türkiye (Turkey) - west of 28°30'E, onshore.
Cartesian 2D CS. Axes: northing, easting (X,Y). Orientations: north, east. UoM: m.
-964860.67 6529802.06
-1717917.78 5780724.78
-339033.05 7295622.34
-5.05 51.03
10.86 62.01
Definition: OGC Well Known Text
PROJCS["ED50 / TM27", GEOGCS["ED50", DATUM["European_Datum_1950", SPHEROID["International 1924",6378388,297, AUTHORITY["EPSG","7022"]], AUTHORITY["EPSG","6230"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4230"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",0], PARAMETER["central_meridian",27], PARAMETER["scale_factor",1], PARAMETER["false_easting",500000], PARAMETER["false_northing",0], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AUTHORITY["EPSG","2319"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["ED50 / TM27", BASEGEOGCRS["ED50", DATUM["European Datum 1950", ELLIPSOID["International 1924",6378388,297, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4230]], CONVERSION["Gauss-Kruger CM 27E", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",27, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",500000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["northing (X)",north, ORDER[1], LENGTHUNIT["metre",1]], AXIS["easting (Y)",east, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Cadastre, engineering survey, topographic mapping (large scale)."], AREA["Türkiye (Turkey) - west of 28°30'E, onshore."], BBOX[36.5,25.62,42.11,28.5]], ID["EPSG",2319]]
Definition: ESRI Well Known Text
PROJCS["ED_1950_TM27", GEOGCS["GCS_European_1950", DATUM["D_European_1950", SPHEROID["International_1924",6378388.0,297.0]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Transverse_Mercator"], PARAMETER["False_Easting",500000.0], PARAMETER["False_Northing",0.0], PARAMETER["Central_Meridian",27.0], PARAMETER["Scale_Factor",1.0], PARAMETER["Latitude_Of_Origin",0.0], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "ED50 / TM27", "base_crs": { "name": "ED50", "datum": { "type": "GeodeticReferenceFrame", "name": "European Datum 1950", "ellipsoid": { "name": "International 1924", "semi_major_axis": 6378388, "inverse_flattening": 297 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 4230 } }, "conversion": { "name": "Gauss-Kruger CM 27E", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 0, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 27, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 1, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 500000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Northing", "abbreviation": "X", "direction": "north", "unit": "metre" }, { "name": "Easting", "abbreviation": "Y", "direction": "east", "unit": "metre" } ] }, "scope": "Cadastre, engineering survey, topographic mapping (large scale).", "area": "Türkiye (Turkey) - west of 28°30'E, onshore.", "bbox": { "south_latitude": 36.5, "west_longitude": 25.62, "north_latitude": 42.11, "east_longitude": 28.5 }, "id": { "authority": "EPSG", "code": 2319 } }
Definition: GeoServer
2319=PROJCS["ED50 / TM27",GEOGCS["ED50",DATUM["European_Datum_1950",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6230"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4230"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",27],PARAMETER["scale_factor",1],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2319"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=0 +lon_0=27 +k=1 +x_0=500000 +y_0=0 +ellps=intl +units=m +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=0 +lon_0=27 +k=1 +x_0=500000 +y_0=0 +ellps=intl +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 2319, 'EPSG', 2319, '+proj=tmerc +lat_0=0 +lon_0=27 +k=1 +x_0=500000 +y_0=0 +ellps=intl +units=m +no_defs +type=crs', 'PROJCS["ED50 / TM27",GEOGCS["ED50",DATUM["European_Datum_1950",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6230"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4230"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",27],PARAMETER["scale_factor",1],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2319"]]');