EPSG:2391

KKJ / Finland zone 1

Transform Get position on a map

Available transformations
to EPSG:4258
EPSG:4258 - ETRS89

Selected transformation

Method: Coordinate Frame rotation (geog2D domain)

Remarks: In most areas accuracy is approximately 0.5m although in some areas it is in the order of 2m. May be taken as approximate transformation KKJ to WGS 84 - see code 10099. Replaces KKJ to ETRS89 (1) (code 1638).

Information source: National Land Survey of Finland; http://www.maanmittauslaitos.fi

Revision date: 2020-03-14

Attributes

Unit: metre

Geodetic CRS: KKJ

Datum: Kartastokoordinaattijarjestelma (1966)

Ellipsoid: International 1924

Prime meridian: Greenwich

Data source: EPSG

Information source: National Land Survey of Finland; http://www.maanmittauslaitos.fi

Revision date: 2006-03-31

Scope: Engineering survey, topographic mapping.

Area of use: Finland - onshore between 19°30'E and 22°30'E.

Coordinate system: Cartesian 2D CS. Axes: northing, easting (X,Y). Orientations: north, east. UoM: m.

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SimpleMap

Center coordinates
1708666.5 7209947.56

Projected bounds:
1400957.88 6626458.25
2093591.36 7814216.46

WGS84 bounds:
19.24 59.75
31.59 70.09

Finland - onshore.
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Definition: OGC Well Known Text

PROJCS["KKJ / Finland zone 1",
    GEOGCS["KKJ",
        DATUM["Kartastokoordinaattijarjestelma_1966",
            SPHEROID["International 1924",6378388,297],
            TOWGS84[-96.062,-82.428,-121.753,-4.801,-0.345,1.376,1.496]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4123"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",21],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",1500000],
    PARAMETER["false_northing",0],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AUTHORITY["EPSG","2391"]]

Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        PROJCRS["KKJ / Finland zone 1",
            BASEGEOGCRS["KKJ",
                DATUM["Kartastokoordinaattijarjestelma (1966)",
                    ELLIPSOID["International 1924",6378388,297,
                        LENGTHUNIT["metre",1]]],
                PRIMEM["Greenwich",0,
                    ANGLEUNIT["degree",0.0174532925199433]],
                ID["EPSG",4123]],
            CONVERSION["Finland zone 1",
                METHOD["Transverse Mercator",
                    ID["EPSG",9807]],
                PARAMETER["Latitude of natural origin",0,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8801]],
                PARAMETER["Longitude of natural origin",21,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8802]],
                PARAMETER["Scale factor at natural origin",1,
                    SCALEUNIT["unity",1],
                    ID["EPSG",8805]],
                PARAMETER["False easting",1500000,
                    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["Engineering survey, topographic mapping."],
                AREA["Finland - onshore between 19°30'E and 22°30'E."],
                BBOX[59.76,19.5,69.33,22.5]],
            ID["EPSG",2391]]],
    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["Transformation from unknown to WGS84",
        METHOD["Position Vector transformation (geog2D domain)",
            ID["EPSG",9606]],
        PARAMETER["X-axis translation",-96.062,
            ID["EPSG",8605]],
        PARAMETER["Y-axis translation",-82.428,
            ID["EPSG",8606]],
        PARAMETER["Z-axis translation",-121.753,
            ID["EPSG",8607]],
        PARAMETER["X-axis rotation",-4.801,
            ID["EPSG",8608]],
        PARAMETER["Y-axis rotation",-0.345,
            ID["EPSG",8609]],
        PARAMETER["Z-axis rotation",1.376,
            ID["EPSG",8610]],
        PARAMETER["Scale difference",1.000001496,
            ID["EPSG",8611]]]]

Definition: ESRI Well Known Text

PROJCS["Finland_Zone_1",
    GEOGCS["GCS_KKJ",
        DATUM["D_KKJ",
            SPHEROID["International_1924",6378388.0,297.0]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["False_Easting",1500000.0],
    PARAMETER["False_Northing",0.0],
    PARAMETER["Central_Meridian",21.0],
    PARAMETER["Scale_Factor",1.0],
    PARAMETER["Latitude_Of_Origin",0.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=tmerc +lat_0=0 +lon_0=21 +k=1 +x_0=1500000 +y_0=0 +ellps=intl +towgs84=-96.062,-82.428,-121.753,-4.801,-0.345,1.376,1.496 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:2391","+proj=tmerc +lat_0=0 +lon_0=21 +k=1 +x_0=1500000 +y_0=0 +ellps=intl +towgs84=-96.062,-82.428,-121.753,-4.801,-0.345,1.376,1.496 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "ProjectedCRS",
        "name": "KKJ / Finland zone 1",
        "base_crs": {
            "name": "KKJ",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "Kartastokoordinaattijarjestelma (1966)",
                "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": 4123
            }
        },
        "conversion": {
            "name": "Finland zone 1",
            "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": 21,
                    "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": 1500000,
                    "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"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 2391
        }
    },
    "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": "Transformation from unknown to WGS84",
        "method": {
            "name": "Position Vector transformation (geog2D domain)",
            "id": {
                "authority": "EPSG",
                "code": 9606
            }
        },
        "parameters": [
            {
                "name": "X-axis translation",
                "value": -96.062,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8605
                }
            },
            {
                "name": "Y-axis translation",
                "value": -82.428,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8606
                }
            },
            {
                "name": "Z-axis translation",
                "value": -121.753,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8607
                }
            },
            {
                "name": "X-axis rotation",
                "value": -4.801,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8608
                }
            },
            {
                "name": "Y-axis rotation",
                "value": -0.345,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8609
                }
            },
            {
                "name": "Z-axis rotation",
                "value": 1.376,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8610
                }
            },
            {
                "name": "Scale difference",
                "value": 1.496,
                "unit": {
                    "type": "ScaleUnit",
                    "name": "parts per million",
                    "conversion_factor": 1e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8611
                }
            }
        ]
    }
}

Definition: GeoServer

2391=PROJCS["KKJ / Finland zone 1",GEOGCS["KKJ",DATUM["Kartastokoordinaattijarjestelma_1966",SPHEROID["International 1924",6378388,297],TOWGS84[-96.062,-82.428,-121.753,-4.801,-0.345,1.376,1.496]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4123"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",21],PARAMETER["scale_factor",1],PARAMETER["false_easting",1500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2391"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=0"
	"lon_0=21"
	"k=1"
	"x_0=1500000"
	"y_0=0"
	"ellps=intl"
	"towgs84=-96.062,-82.428,-121.753,-4.801,-0.345,1.376,1.496"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=0 +lon_0=21 +k=1 +x_0=1500000 +y_0=0 +ellps=intl +towgs84=-96.062,-82.428,-121.753,-4.801,-0.345,1.376,1.496 +units=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=0 +lon_0=21 +k=1 +x_0=1500000 +y_0=0 +ellps=intl +towgs84=-96.062,-82.428,-121.753,-4.801,-0.345,1.376,1.496 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 2391, 'EPSG', 2391, '+proj=tmerc +lat_0=0 +lon_0=21 +k=1 +x_0=1500000 +y_0=0 +ellps=intl +towgs84=-96.062,-82.428,-121.753,-4.801,-0.345,1.376,1.496 +units=m +no_defs +type=crs', 'PROJCS["KKJ / Finland zone 1",GEOGCS["KKJ",DATUM["Kartastokoordinaattijarjestelma_1966",SPHEROID["International 1924",6378388,297],TOWGS84[-96.062,-82.428,-121.753,-4.801,-0.345,1.376,1.496]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4123"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",21],PARAMETER["scale_factor",1],PARAMETER["false_easting",1500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2391"]]');