EPSG:4230

ED50

Available transformations
to EPSG:4326

Selected transformation

Remarks: Replaced by codes 8569 and 1612 in 1997 and 2001. The concatenation of transformations 1147 and 1146 gives the following position vector tfm: dX=-84.491 dY=-100.559 dZ=-114.209 metres rX= -2.4006 rY=-0.5367 rZ=-2.3742 microradians dS=+0.2947 ppm.

Information source: Statenskartverk note of January 1991 "Om transformasjon mellom geodetiske datum i Norge".

Revision date: 2020-03-14

Center coordinates
17.33 74.86

WGS84 bounds:
-3.35 65.0
38.01 84.73

Norway - offshore north of 65°N. Also Svalbard.
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Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        BOUNDCRS[
            SOURCECRS[
                GEOGCRS["ED50",
                    DATUM["European Datum 1950",
                        ELLIPSOID["International 1924",6378388,297,
                            LENGTHUNIT["metre",1]]],
                    PRIMEM["Greenwich",0,
                        ANGLEUNIT["degree",0.0174532925199433]],
                    CS[ellipsoidal,2],
                        AXIS["geodetic latitude (Lat)",north,
                            ORDER[1],
                            ANGLEUNIT["degree",0.0174532925199433]],
                        AXIS["geodetic longitude (Lon)",east,
                            ORDER[2],
                            ANGLEUNIT["degree",0.0174532925199433]],
                    ID["EPSG",4230]]],
            TARGETCRS[
                GEOGCRS["ED87",
                    DATUM["European Datum 1987",
                        ELLIPSOID["International 1924",6378388,297,
                            LENGTHUNIT["metre",1]]],
                    PRIMEM["Greenwich",0,
                        ANGLEUNIT["degree",0.0174532925199433]],
                    CS[ellipsoidal,2],
                        AXIS["geodetic latitude (Lat)",north,
                            ORDER[1],
                            ANGLEUNIT["degree",0.0174532925199433]],
                        AXIS["geodetic longitude (Lon)",east,
                            ORDER[2],
                            ANGLEUNIT["degree",0.0174532925199433]],
                    ID["EPSG",4231]]],
            ABRIDGEDTRANSFORMATION["ED50 to ED87 (2)",
                METHOD["Position Vector transformation (geog2D domain)",
                    ID["EPSG",9606]],
                PARAMETER["X-axis translation",-1.51,
                    ID["EPSG",8605]],
                PARAMETER["Y-axis translation",-0.84,
                    ID["EPSG",8606]],
                PARAMETER["Z-axis translation",-3.5,
                    ID["EPSG",8607]],
                PARAMETER["X-axis rotation",-0.390459278225753,
                    ID["EPSG",8608]],
                PARAMETER["Y-axis rotation",-0.141703921891755,
                    ID["EPSG",8609]],
                PARAMETER["Z-axis rotation",-0.570115924466974,
                    ID["EPSG",8610]],
                PARAMETER["Scale difference",1.000000609,
                    ID["EPSG",8611]],
                ID["EPSG",1147]]]],
    TARGETCRS[
        GEOGCRS["WGS 84",
            ENSEMBLE["World Geodetic System 1984 ensemble",
                MEMBER["World Geodetic System 1984 (Transit)"],
                MEMBER["World Geodetic System 1984 (G730)"],
                MEMBER["World Geodetic System 1984 (G873)"],
                MEMBER["World Geodetic System 1984 (G1150)"],
                MEMBER["World Geodetic System 1984 (G1674)"],
                MEMBER["World Geodetic System 1984 (G1762)"],
                MEMBER["World Geodetic System 1984 (G2139)"],
                ELLIPSOID["WGS 84",6378137,298.257223563,
                    LENGTHUNIT["metre",1]],
                ENSEMBLEACCURACY[2.0]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            CS[ellipsoidal,2],
                AXIS["geodetic latitude (Lat)",north,
                    ORDER[1],
                    ANGLEUNIT["degree",0.0174532925199433]],
                AXIS["geodetic longitude (Lon)",east,
                    ORDER[2],
                    ANGLEUNIT["degree",0.0174532925199433]],
            USAGE[
                SCOPE["Horizontal component of 3D system."],
                AREA["World."],
                BBOX[-90,-180,90,180]],
            ID["EPSG",4326]]],
    ABRIDGEDTRANSFORMATION["ED87 to WGS 84 (1)",
        METHOD["Position Vector transformation (geog2D domain)",
            ID["EPSG",9606]],
        PARAMETER["X-axis translation",-82.981,
            ID["EPSG",8605]],
        PARAMETER["Y-axis translation",-99.719,
            ID["EPSG",8606]],
        PARAMETER["Z-axis translation",-110.709,
            ID["EPSG",8607]],
        PARAMETER["X-axis rotation",-0.104700015651026,
            ID["EPSG",8608]],
        PARAMETER["Y-axis rotation",0.0310016003789386,
            ID["EPSG",8609]],
        PARAMETER["Z-axis rotation",0.0804020214751182,
            ID["EPSG",8610]],
        PARAMETER["Scale difference",0.9999996857,
            ID["EPSG",8611]],
        USAGE[
            SCOPE["Not known."],
            AREA["Denmark - North Sea; Germany - North Sea; Netherlands - offshore; Norway - North Sea south of 62°N; United Kingdom (UKCS) - North Sea south of 62°N."],
            BBOX[51.03,-5.05,62.01,11.14]],
        ID["EPSG",1146]]]

Definition: PROJ.4

+proj=longlat +ellps=intl +towgs84=-82.981,-99.719,-110.709,-0.104700015651026,0.0310016003789386,0.0804020214751182,-0.3143 +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:4230","+proj=longlat +ellps=intl +towgs84=-82.981,-99.719,-110.709,-0.104700015651026,0.0310016003789386,0.0804020214751182,-0.3143 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "BoundCRS",
        "source_crs": {
            "type": "GeographicCRS",
            "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
            }
        },
        "target_crs": {
            "type": "GeographicCRS",
            "name": "ED87",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "European Datum 1987",
                "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": 4231
            }
        },
        "transformation": {
            "name": "ED50 to ED87 (2)",
            "method": {
                "name": "Position Vector transformation (geog2D domain)",
                "id": {
                    "authority": "EPSG",
                    "code": 9606
                }
            },
            "parameters": [
                {
                    "name": "X-axis translation",
                    "value": -1.51,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8605
                    }
                },
                {
                    "name": "Y-axis translation",
                    "value": -0.84,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8606
                    }
                },
                {
                    "name": "Z-axis translation",
                    "value": -3.5,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8607
                    }
                },
                {
                    "name": "X-axis rotation",
                    "value": -1.893,
                    "unit": {
                        "type": "AngularUnit",
                        "name": "microradian",
                        "conversion_factor": 1e-06
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8608
                    }
                },
                {
                    "name": "Y-axis rotation",
                    "value": -0.687,
                    "unit": {
                        "type": "AngularUnit",
                        "name": "microradian",
                        "conversion_factor": 1e-06
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8609
                    }
                },
                {
                    "name": "Z-axis rotation",
                    "value": -2.764,
                    "unit": {
                        "type": "AngularUnit",
                        "name": "microradian",
                        "conversion_factor": 1e-06
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8610
                    }
                },
                {
                    "name": "Scale difference",
                    "value": 0.609,
                    "unit": {
                        "type": "ScaleUnit",
                        "name": "parts per million",
                        "conversion_factor": 1e-06
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8611
                    }
                }
            ],
            "id": {
                "authority": "EPSG",
                "code": 1147
            }
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "WGS 84",
        "datum_ensemble": {
            "name": "World Geodetic System 1984 ensemble",
            "members": [
                {
                    "name": "World Geodetic System 1984 (Transit)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1166
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G730)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1152
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G873)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1153
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1150)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1154
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1674)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1155
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1762)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1156
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G2139)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1309
                    }
                }
            ],
            "ellipsoid": {
                "name": "WGS 84",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257223563
            },
            "accuracy": "2.0",
            "id": {
                "authority": "EPSG",
                "code": 6326
            }
        },
        "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": 4326
        }
    },
    "transformation": {
        "name": "ED87 to WGS 84 (1)",
        "method": {
            "name": "Position Vector transformation (geog2D domain)",
            "id": {
                "authority": "EPSG",
                "code": 9606
            }
        },
        "parameters": [
            {
                "name": "X-axis translation",
                "value": -82.981,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8605
                }
            },
            {
                "name": "Y-axis translation",
                "value": -99.719,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8606
                }
            },
            {
                "name": "Z-axis translation",
                "value": -110.709,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8607
                }
            },
            {
                "name": "X-axis rotation",
                "value": -0.5076,
                "unit": {
                    "type": "AngularUnit",
                    "name": "microradian",
                    "conversion_factor": 1e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8608
                }
            },
            {
                "name": "Y-axis rotation",
                "value": 0.1503,
                "unit": {
                    "type": "AngularUnit",
                    "name": "microradian",
                    "conversion_factor": 1e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8609
                }
            },
            {
                "name": "Z-axis rotation",
                "value": 0.3898,
                "unit": {
                    "type": "AngularUnit",
                    "name": "microradian",
                    "conversion_factor": 1e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8610
                }
            },
            {
                "name": "Scale difference",
                "value": -0.3143,
                "unit": {
                    "type": "ScaleUnit",
                    "name": "parts per million",
                    "conversion_factor": 1e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8611
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 1146
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=intl"
	"towgs84=-82.981,-99.719,-110.709,-0.104700015651026,0.0310016003789386,0.0804020214751182,-0.3143"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=intl +towgs84=-82.981,-99.719,-110.709,-0.104700015651026,0.0310016003789386,0.0804020214751182,-0.3143 +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=intl +towgs84=-82.981,-99.719,-110.709,-0.104700015651026,0.0310016003789386,0.0804020214751182,-0.3143 +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4230, 'EPSG', 4230, '+proj=longlat +ellps=intl +towgs84=-82.981,-99.719,-110.709,-0.104700015651026,0.0310016003789386,0.0804020214751182,-0.3143 +no_defs +type=crs', 'None');