EPSG:5172

Tokyo 1892 / Korea East Sea Belt

Available transformations
to EPSG:4737

Selected transformation

Remarks:

Information source: OGP

Revision date: 2023-07-17

Attributes

Unit: metre

Geodetic CRS: Tokyo 1892

Datum: Tokyo 1892

Ellipsoid: Bessel 1841

Prime meridian: Greenwich

Data source: EPSG

Information source: OGP based on projection information from National Geographic Information Institute (NGII) and by Clifford J. Mugnier in Photogrammetric Engineering & Remote Sensing November 1999, http://www.asprs.org

Revision date: 2010-07-07

Scope: Cadastre, engineering survey, topographic mapping (large and medium scale).

Remarks: Sometimes incorrectly assumed to be Tokyo 1918 / Korea East Sea Belt, a system that was never put into use. In South Korea, replaced by Korean 1985 / East Sea Belt (CRS code 5167).

Area of use: Democratic People's Republic of Korea (North Korea) and Republic of Korea (South Korea) - onshore east of 130°E.

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

Center coordinates
-91723.86 270356.39

Projected bounds:
-404252.48 -39533.9
200887.83 590658.83

WGS84 bounds:
124.53 33.14
131.01 38.64

Republic of Korea (South Korea) - onshore.
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Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        BOUNDCRS[
            SOURCECRS[
                PROJCRS["Tokyo 1892 / Korea East Sea Belt",
                    BASEGEOGCRS["Tokyo 1892",
                        DATUM["Tokyo 1892",
                            ELLIPSOID["Bessel 1841",6377397.155,299.1528128,
                                LENGTHUNIT["metre",1]]],
                        PRIMEM["Greenwich",0,
                            ANGLEUNIT["degree",0.0174532925199433]],
                        ID["EPSG",5132]],
                    CONVERSION["Korea East Sea Belt",
                        METHOD["Transverse Mercator",
                            ID["EPSG",9807]],
                        PARAMETER["Latitude of natural origin",38,
                            ANGLEUNIT["degree",0.0174532925199433],
                            ID["EPSG",8801]],
                        PARAMETER["Longitude of natural origin",131,
                            ANGLEUNIT["degree",0.0174532925199433],
                            ID["EPSG",8802]],
                        PARAMETER["Scale factor at natural origin",1,
                            SCALEUNIT["unity",1],
                            ID["EPSG",8805]],
                        PARAMETER["False easting",200000,
                            LENGTHUNIT["metre",1],
                            ID["EPSG",8806]],
                        PARAMETER["False northing",500000,
                            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]],
                    ID["EPSG",5172]]],
            TARGETCRS[
                GEOGCRS["Korean 1985",
                    DATUM["Korean Datum 1985",
                        ELLIPSOID["Bessel 1841",6377397.155,299.1528128,
                            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",4162]]],
            ABRIDGEDTRANSFORMATION["Tokyo 1892 to Korean 1985 (1)",
                METHOD["Longitude rotation",
                    ID["EPSG",9601]],
                PARAMETER["Longitude offset",10.405,
                    ID["EPSG",8602]],
                ID["EPSG",5134]]]],
    TARGETCRS[
        GEOGCRS["KGD2002",
            DATUM["Korean Geodetic Datum 2002",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    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]],
            USAGE[
                SCOPE["Horizontal component of 3D system."],
                AREA["Republic of Korea (South Korea) - onshore and offshore."],
                BBOX[28.6,122.71,40.27,134.28]],
            ID["EPSG",4737]]],
    ABRIDGEDTRANSFORMATION["Korean 1985 to KGD2002 (1)",
        METHOD["Molodensky-Badekas (CF geog2D domain)",
            ID["EPSG",9636]],
        PARAMETER["X-axis translation",-145.907,
            ID["EPSG",8605]],
        PARAMETER["Y-axis translation",505.034,
            ID["EPSG",8606]],
        PARAMETER["Z-axis translation",685.756,
            ID["EPSG",8607]],
        PARAMETER["X-axis rotation",-1.162,
            ID["EPSG",8608]],
        PARAMETER["Y-axis rotation",2.347,
            ID["EPSG",8609]],
        PARAMETER["Z-axis rotation",1.592,
            ID["EPSG",8610]],
        PARAMETER["Scale difference",1.000006342,
            ID["EPSG",8611]],
        PARAMETER["Ordinate 1 of evaluation point",-3159521.31,
            ID["EPSG",8617]],
        PARAMETER["Ordinate 2 of evaluation point",4068151.32,
            ID["EPSG",8618]],
        PARAMETER["Ordinate 3 of evaluation point",3748113.85,
            ID["EPSG",8667]],
        USAGE[
            SCOPE["Transformation of coordinates at 1m level of accuracy."],
            AREA["Republic of Korea (South Korea) - onshore."],
            BBOX[33.14,124.53,38.64,131.01]],
        ID["EPSG",5189],
        REMARK["For accuracies commensurate with mapping at 1/5000 scale. May be taken as approximate transformation Korean 1985 to WGS 84 - see code 5191."]]]

Definition: PROJ.4

+proj=tmerc +lat_0=38 +lon_0=131 +k=1 +x_0=200000 +y_0=500000 +ellps=bessel +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:5172","+proj=tmerc +lat_0=38 +lon_0=131 +k=1 +x_0=200000 +y_0=500000 +ellps=bessel +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "BoundCRS",
        "source_crs": {
            "type": "ProjectedCRS",
            "name": "Tokyo 1892 / Korea East Sea Belt",
            "base_crs": {
                "name": "Tokyo 1892",
                "datum": {
                    "type": "GeodeticReferenceFrame",
                    "name": "Tokyo 1892",
                    "ellipsoid": {
                        "name": "Bessel 1841",
                        "semi_major_axis": 6377397.155,
                        "inverse_flattening": 299.1528128
                    }
                },
                "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": 5132
                }
            },
            "conversion": {
                "name": "Korea East Sea Belt",
                "method": {
                    "name": "Transverse Mercator",
                    "id": {
                        "authority": "EPSG",
                        "code": 9807
                    }
                },
                "parameters": [
                    {
                        "name": "Latitude of natural origin",
                        "value": 38,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8801
                        }
                    },
                    {
                        "name": "Longitude of natural origin",
                        "value": 131,
                        "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": 200000,
                        "unit": "metre",
                        "id": {
                            "authority": "EPSG",
                            "code": 8806
                        }
                    },
                    {
                        "name": "False northing",
                        "value": 500000,
                        "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": 5172
            }
        },
        "target_crs": {
            "type": "GeographicCRS",
            "name": "Korean 1985",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "Korean Datum 1985",
                "ellipsoid": {
                    "name": "Bessel 1841",
                    "semi_major_axis": 6377397.155,
                    "inverse_flattening": 299.1528128
                }
            },
            "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": 4162
            }
        },
        "transformation": {
            "name": "Tokyo 1892 to Korean 1985 (1)",
            "method": {
                "name": "Longitude rotation",
                "id": {
                    "authority": "EPSG",
                    "code": 9601
                }
            },
            "parameters": [
                {
                    "name": "Longitude offset",
                    "value": 10.405,
                    "unit": {
                        "type": "AngularUnit",
                        "name": "arc-second",
                        "conversion_factor": 4.84813681109536e-06
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8602
                    }
                }
            ],
            "id": {
                "authority": "EPSG",
                "code": 5134
            }
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "KGD2002",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Korean Geodetic Datum 2002",
            "ellipsoid": {
                "name": "GRS 1980",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257222101
            }
        },
        "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": 4737
        }
    },
    "transformation": {
        "name": "Korean 1985 to KGD2002 (1)",
        "source_crs": {
            "type": "GeographicCRS",
            "name": "Korean 1985",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "Korean Datum 1985",
                "ellipsoid": {
                    "name": "Bessel 1841",
                    "semi_major_axis": 6377397.155,
                    "inverse_flattening": 299.1528128
                }
            },
            "coordinate_system": {
                "subtype": "ellipsoidal",
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                    {
                        "name": "Geodetic latitude",
                        "abbreviation": "Lat",
                        "direction": "north",
                        "unit": "degree"
                    },
                    {
                        "name": "Geodetic longitude",
                        "abbreviation": "Lon",
                        "direction": "east",
                        "unit": "degree"
                    }
                ]
            },
            "id": {
                "authority": "EPSG",
                "code": 4162
            }
        },
        "method": {
            "name": "Molodensky-Badekas (CF geog2D domain)",
            "id": {
                "authority": "EPSG",
                "code": 9636
            }
        },
        "parameters": [
            {
                "name": "X-axis translation",
                "value": -145.907,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8605
                }
            },
            {
                "name": "Y-axis translation",
                "value": 505.034,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8606
                }
            },
            {
                "name": "Z-axis translation",
                "value": 685.756,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8607
                }
            },
            {
                "name": "X-axis rotation",
                "value": -1.162,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8608
                }
            },
            {
                "name": "Y-axis rotation",
                "value": 2.347,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8609
                }
            },
            {
                "name": "Z-axis rotation",
                "value": 1.592,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8610
                }
            },
            {
                "name": "Scale difference",
                "value": 6.342,
                "unit": {
                    "type": "ScaleUnit",
                    "name": "parts per million",
                    "conversion_factor": 1e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8611
                }
            },
            {
                "name": "Ordinate 1 of evaluation point",
                "value": -3159521.31,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8617
                }
            },
            {
                "name": "Ordinate 2 of evaluation point",
                "value": 4068151.32,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8618
                }
            },
            {
                "name": "Ordinate 3 of evaluation point",
                "value": 3748113.85,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8667
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 5189
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=38"
	"lon_0=131"
	"k=1"
	"x_0=200000"
	"y_0=500000"
	"ellps=bessel"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=38 +lon_0=131 +k=1 +x_0=200000 +y_0=500000 +ellps=bessel +units=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=38 +lon_0=131 +k=1 +x_0=200000 +y_0=500000 +ellps=bessel +units=m +no_defs +type=crs">
	</Layer>
</Map>