EPSG:4301

Tokyo

Available transformations
to EPSG:6668

Selected transformation

Grid Files: tky2jgd.gsb touhokutaiheiyouoki2011.gsb

Remarks: See Tokyo to JGD2011 (2) (code 6740) for areas other than northern Honshu.

Information source: OGP

Revision date: 2014-03-10

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: Tokyo

Datum: Tokyo

Ellipsoid: Bessel 1841

Prime meridian: Greenwich

Data source: EPSG

Information source: Geographic Survey Institute; Japan; Bulletin 40 (March 1994). Also http://vldb.gsi.go.jp/sokuchi/datum/tokyodatum.html

Revision date: 2010-06-30

Scope: Geodesy.

Remarks: In Japan, replaces Tokyo 1892 (CRS code 5132) and replaced by JGD2000 (code 4612) from April 2002. In Korea used only for geodetic applications before being replaced by Korean 1985 (code 4162).

Area of use: Japan - onshore; North Korea - onshore; South Korea - onshore.

Coordinate system: Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: degree

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Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        BOUNDCRS[
            SOURCECRS[
                GEOGCRS["Tokyo",
                    DATUM["Tokyo",
                        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",4301]]],
            TARGETCRS[
                GEOGCRS["JGD2000",
                    DATUM["Japanese Geodetic Datum 2000",
                        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]],
                    ID["EPSG",4612]]],
            ABRIDGEDTRANSFORMATION["Tokyo to JGD2000 (2)",
                METHOD["NTv2",
                    ID["EPSG",9615]],
                PARAMETERFILE["Latitude and longitude difference file","tky2jgd.gsb"],
                ID["EPSG",6712]]]],
    TARGETCRS[
        GEOGCRS["JGD2011",
            DATUM["Japanese Geodetic Datum 2011",
                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["Japan - onshore and offshore."],
                BBOX[17.09,122.38,46.05,157.65]],
            ID["EPSG",6668]]],
    ABRIDGEDTRANSFORMATION["JGD2000 to JGD2011 (1)",
        METHOD["NTv2",
            ID["EPSG",9615]],
        PARAMETERFILE["Latitude and longitude difference file","touhokutaiheiyouoki2011.gsb"],
        USAGE[
            SCOPE["Readjustment of coordinates to account for ground deformation caused by 2011 Tohoku earthquake."],
            AREA["Japan - northern Honshu prefectures affected by 2011 Tohoku earthquake: Aomori, Iwate, Miyagi, Akita, Yamaguta, Fukushima, Ibaraki, Tochigi, Gumma, Saitama, Chiba, Tokyo, Kanagawa, Niigata, Toyama, Ishikawa, Fukui, Yamanashi, Nagano, Gifu."],
            BBOX[34.84,135.42,41.58,142.14]],
        ID["EPSG",6713],
        REMARK["NTv2 grid derived by ESRI from that supplied by GSI in application patchjgd."]]]

Definition: PROJ.4

+proj=longlat +ellps=bessel +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:4301","+proj=longlat +ellps=bessel +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": "Tokyo",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "Tokyo",
                "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": 4301
            }
        },
        "target_crs": {
            "type": "GeographicCRS",
            "name": "JGD2000",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "Japanese Geodetic Datum 2000",
                "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": 4612
            }
        },
        "transformation": {
            "name": "Tokyo to JGD2000 (2)",
            "method": {
                "name": "NTv2",
                "id": {
                    "authority": "EPSG",
                    "code": 9615
                }
            },
            "parameters": [
                {
                    "name": "Latitude and longitude difference file",
                    "value": "tky2jgd.gsb",
                    "id": {
                        "authority": "EPSG",
                        "code": 8656
                    }
                }
            ],
            "id": {
                "authority": "EPSG",
                "code": 6712
            }
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "JGD2011",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Japanese Geodetic Datum 2011",
            "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": 6668
        }
    },
    "transformation": {
        "name": "JGD2000 to JGD2011 (1)",
        "method": {
            "name": "NTv2",
            "id": {
                "authority": "EPSG",
                "code": 9615
            }
        },
        "parameters": [
            {
                "name": "Latitude and longitude difference file",
                "value": "touhokutaiheiyouoki2011.gsb",
                "id": {
                    "authority": "EPSG",
                    "code": 8656
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 6713
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=bessel"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=bessel +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=bessel +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4301, 'EPSG', 4301, '+proj=longlat +ellps=bessel +no_defs +type=crs', 'None');