EPSG:2451

JGD2000 / Japan Plane Rectangular CS IX

Transform Get position on a map

Available transformations
to EPSG:4326
EPSG:4326 - WGS 84

Selected transformation

Method: Geocentric translations (geog2D domain)

Remarks: Excludes area affected by the 2011 Tohoku earthquake. For areas of northern Honshu affected by the earthquake see JGD2000 to WGS 84 (2) (code 9896).

Information source: OGP

Revision date: 2021-12-30

Attributes

Unit: metre

Geodetic CRS: JGD2000

Datum: Japanese Geodetic Datum 2000

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Geographic Survey Institute; Japan. http://vldb.gsi.go.jp/sokuchi/datum/tokyodatum.html

Revision date: 2002-06-22

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

Remarks: Replaces Tokyo / Japan Plane Rectangular CS IX (code 30169).

Area of use: Japan - onshore - Honshu - Tokyo-to. (Excludes offshore island areas of Tokyo-to covered by Japan Plane Rectangular Coordinate System zones XIV, XVIII and XIX).

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

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Center coordinates
17244.17 -491306.5

Projected bounds:
-1881761.44 -2095056.7
1921995.63 1272689.51

WGS84 bounds:
122.38 17.09
157.65 46.05

Japan - onshore and offshore, excluding northern prefectures of 'main province' (see remarks).
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Definition: OGC Well Known Text

PROJCS["JGD2000 / Japan Plane Rectangular CS IX",
    GEOGCS["JGD2000",
        DATUM["Japanese_Geodetic_Datum_2000",
            SPHEROID["GRS 1980",6378137,298.257222101],
            TOWGS84[0,0,0,0,0,0,0]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4612"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",36],
    PARAMETER["central_meridian",139.833333333333],
    PARAMETER["scale_factor",0.9999],
    PARAMETER["false_easting",0],
    PARAMETER["false_northing",0],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AUTHORITY["EPSG","2451"]]

Definition: OGC Well Known Text 2 (2019)

PROJCRS["JGD2000 / Japan Plane Rectangular CS IX",
    BASEGEOGCRS["JGD2000",
        DATUM["Japanese Geodetic Datum 2000",
            ELLIPSOID["GRS 1980",6378137,298.257222101,
                LENGTHUNIT["metre",1]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",4612]],
    CONVERSION["Japan Plane Rectangular CS zone IX",
        METHOD["Transverse Mercator",
            ID["EPSG",9807]],
        PARAMETER["Latitude of natural origin",36,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8801]],
        PARAMETER["Longitude of natural origin",139.833333333333,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["Scale factor at natural origin",0.9999,
            SCALEUNIT["unity",1],
            ID["EPSG",8805]],
        PARAMETER["False easting",0,
            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 and medium scale)."],
        AREA["Japan - onshore - Honshu - Tokyo-to. (Excludes offshore island areas of Tokyo-to covered by Japan Plane Rectangular Coordinate System zones XIV, XVIII and XIX)."],
        BBOX[29.31,138.4,37.98,141.11]],
    ID["EPSG",2451]]

Definition: ESRI Well Known Text

PROJCS["JGD_2000_Japan_Zone_9",
    GEOGCS["GCS_JGD_2000",
        DATUM["D_JGD_2000",
            SPHEROID["GRS_1980",6378137.0,298.257222101]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["False_Easting",0.0],
    PARAMETER["False_Northing",0.0],
    PARAMETER["Central_Meridian",139.833333333333],
    PARAMETER["Scale_Factor",0.9999],
    PARAMETER["Latitude_Of_Origin",36.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=tmerc +lat_0=36 +lon_0=139.833333333333 +k=0.9999 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:2451","+proj=tmerc +lat_0=36 +lon_0=139.833333333333 +k=0.9999 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "JGD2000 / Japan Plane Rectangular CS IX",
    "base_crs": {
        "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
        }
    },
    "conversion": {
        "name": "Japan Plane Rectangular CS zone IX",
        "method": {
            "name": "Transverse Mercator",
            "id": {
                "authority": "EPSG",
                "code": 9807
            }
        },
        "parameters": [
            {
                "name": "Latitude of natural origin",
                "value": 36,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8801
                }
            },
            {
                "name": "Longitude of natural origin",
                "value": 139.833333333333,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8802
                }
            },
            {
                "name": "Scale factor at natural origin",
                "value": 0.9999,
                "unit": "unity",
                "id": {
                    "authority": "EPSG",
                    "code": 8805
                }
            },
            {
                "name": "False easting",
                "value": 0,
                "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 and medium scale).",
    "area": "Japan - onshore - Honshu - Tokyo-to. (Excludes offshore island areas of Tokyo-to covered by Japan Plane Rectangular Coordinate System zones XIV, XVIII and XIX).",
    "bbox": {
        "south_latitude": 29.31,
        "west_longitude": 138.4,
        "north_latitude": 37.98,
        "east_longitude": 141.11
    },
    "id": {
        "authority": "EPSG",
        "code": 2451
    }
}

Definition: GeoServer

2451=PROJCS["JGD2000 / Japan Plane Rectangular CS IX",GEOGCS["JGD2000",DATUM["Japanese_Geodetic_Datum_2000",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4612"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",36],PARAMETER["central_meridian",139.833333333333],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2451"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=36"
	"lon_0=139.833333333333"
	"k=0.9999"
	"x_0=0"
	"y_0=0"
	"ellps=GRS80"
	"towgs84=0,0,0,0,0,0,0"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=36 +lon_0=139.833333333333 +k=0.9999 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=36 +lon_0=139.833333333333 +k=0.9999 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 2451, 'EPSG', 2451, '+proj=tmerc +lat_0=36 +lon_0=139.833333333333 +k=0.9999 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["JGD2000 / Japan Plane Rectangular CS IX",GEOGCS["JGD2000",DATUM["Japanese_Geodetic_Datum_2000",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4612"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",36],PARAMETER["central_meridian",139.833333333333],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2451"]]');