EPSG:11444

JGD2024 / Japan Plane Rectangular CS XVIII + JGD2024 (vertical) height

Attributes

Geodetic CRS: JGD2024 / Japan Plane Rectangular CS XVIII + JGD2024 (vertical) height

Data source: EPSG

Information source: IOGP

Revision date: 2026-04-21

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

Area of use: Japan - onshore - Tokyo-to south of 28°N and west of 140°30'E.

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SimpleMap

Center coordinates
9391.77 47048.33

Projected bounds:
2086.32 40957.48
16702.41 53142.35

WGS84 bounds:
136.02 20.37
136.16 20.48

Japan - onshore - Tokyo-to south of 28°N and west of 140°30'E.
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Definition: OGC Well Known Text

COMPD_CS["JGD2024 / Japan Plane Rectangular CS XVIII + JGD2024 (vertical) height",
    PROJCS["JGD2024 / Japan Plane Rectangular CS XVIII",
        GEOGCS["JGD2024",
            DATUM["Japanese_Geodetic_Datum_2024",
                SPHEROID["GRS 1980",6378137,298.257222101,
                    AUTHORITY["EPSG","7019"]],
                AUTHORITY["EPSG","1128"]],
            PRIMEM["Greenwich",0,
                AUTHORITY["EPSG","8901"]],
            UNIT["degree",0.0174532925199433,
                AUTHORITY["EPSG","9122"]],
            AUTHORITY["EPSG","6668"]],
        PROJECTION["Transverse_Mercator"],
        PARAMETER["latitude_of_origin",20],
        PARAMETER["central_meridian",136],
        PARAMETER["scale_factor",0.9999],
        PARAMETER["false_easting",0],
        PARAMETER["false_northing",0],
        UNIT["metre",1,
            AUTHORITY["EPSG","9001"]],
        AUTHORITY["EPSG","6686"]],
    VERT_CS["JGD2024 (vertical) height",
        VERT_DATUM["Japanese Geodetic Datum 2024 (vertical)",2005,
            AUTHORITY["EPSG","1450"]],
        UNIT["metre",1,
            AUTHORITY["EPSG","9001"]],
        AXIS["Gravity-related height",UP],
        AUTHORITY["EPSG","11317"]],
    AUTHORITY["EPSG","11444"]]

Definition: OGC Well Known Text 2 (2019)

COMPOUNDCRS["JGD2024 / Japan Plane Rectangular CS XVIII + JGD2024 (vertical) height",
    PROJCRS["JGD2024 / Japan Plane Rectangular CS XVIII",
        BASEGEOGCRS["JGD2024",
            DATUM["Japanese Geodetic Datum 2024",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            ID["EPSG",6668]],
        CONVERSION["Japan Plane Rectangular CS zone XVIII",
            METHOD["Transverse Mercator",
                ID["EPSG",9807]],
            PARAMETER["Latitude of natural origin",20,
                ANGLEUNIT["degree",0.0174532925199433],
                ID["EPSG",8801]],
            PARAMETER["Longitude of natural origin",136,
                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]]],
    VERTCRS["JGD2024 (vertical) height",
        VDATUM["Japanese Geodetic Datum 2024 (vertical)",
            ANCHOREPOCH[2024.415]],
        CS[vertical,1],
            AXIS["gravity-related height (H)",up,
                LENGTHUNIT["metre",1]]],
    USAGE[
        SCOPE["Cadastre, engineering survey, topographic mapping (large and medium scale)."],
        AREA["Japan - onshore - Tokyo-to south of 28°N and west of 140°30'E."],
        BBOX[20.37,136.02,20.48,136.16]],
    ID["EPSG",11444]]

Definition: ESRI Well Known Text

PROJCS["JGD_2011_Japan_Zone_18",
    GEOGCS["GCS_JGD_2011",
        DATUM["D_JGD_2011",
            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",136.0],
    PARAMETER["Scale_Factor",0.9999],
    PARAMETER["Latitude_Of_Origin",20.0],
    UNIT["Meter",1.0]],
VERTCS["JGD2024_vertical_height",
    VDATUM["Japanese_Geodetic_Datum_2024_vertical"],
    PARAMETER["Vertical_Shift",0.0],
    PARAMETER["Direction",1.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=tmerc +lat_0=20 +lon_0=136 +k=0.9999 +x_0=0 +y_0=0 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:11444","+proj=tmerc +lat_0=20 +lon_0=136 +k=0.9999 +x_0=0 +y_0=0 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "CompoundCRS",
    "name": "JGD2024 / Japan Plane Rectangular CS XVIII + JGD2024 (vertical) height",
    "components": [
        {
            "type": "ProjectedCRS",
            "name": "JGD2024 / Japan Plane Rectangular CS XVIII",
            "base_crs": {
                "type": "GeographicCRS",
                "name": "JGD2024",
                "datum": {
                    "type": "GeodeticReferenceFrame",
                    "name": "Japanese Geodetic Datum 2024",
                    "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
                },
                "remarks": "Replaces JGD2000 (CRS code 4612) with effect from 21st October 2011. On adoption of JGD2024 (vertical) with effect from 1st April 2025, the name of this geodetic CRS was changed from JGD2011 to JGD2024; there is no change of definition or of coordinate values."
            },
            "conversion": {
                "name": "Japan Plane Rectangular CS zone XVIII",
                "method": {
                    "name": "Transverse Mercator",
                    "id": {
                        "authority": "EPSG",
                        "code": 9807
                    }
                },
                "parameters": [
                    {
                        "name": "Latitude of natural origin",
                        "value": 20,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8801
                        }
                    },
                    {
                        "name": "Longitude of natural origin",
                        "value": 136,
                        "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"
                    }
                ]
            }
        },
        {
            "type": "VerticalCRS",
            "name": "JGD2024 (vertical) height",
            "datum": {
                "type": "VerticalReferenceFrame",
                "name": "Japanese Geodetic Datum 2024 (vertical)",
                "anchor_epoch": 2024.415
            },
            "coordinate_system": {
                "subtype": "vertical",
                "axis": [
                    {
                        "name": "Gravity-related height",
                        "abbreviation": "H",
                        "direction": "up",
                        "unit": "metre"
                    }
                ]
            }
        }
    ],
    "scope": "Cadastre, engineering survey, topographic mapping (large and medium scale).",
    "area": "Japan - onshore - Tokyo-to south of 28°N and west of 140°30'E.",
    "bbox": {
        "south_latitude": 20.37,
        "west_longitude": 136.02,
        "north_latitude": 20.48,
        "east_longitude": 136.16
    },
    "id": {
        "authority": "EPSG",
        "code": 11444
    }
}

Definition: GeoServer

11444=COMPD_CS["JGD2024 / Japan Plane Rectangular CS XVIII + JGD2024 (vertical) height",PROJCS["JGD2024 / Japan Plane Rectangular CS XVIII",GEOGCS["JGD2024",DATUM["Japanese_Geodetic_Datum_2024",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1128"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6668"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",20],PARAMETER["central_meridian",136],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","6686"]],VERT_CS["JGD2024 (vertical) height",VERT_DATUM["Japanese Geodetic Datum 2024 (vertical)",2005,AUTHORITY["EPSG","1450"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","11317"]],AUTHORITY["EPSG","11444"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=20"
	"lon_0=136"
	"k=0.9999"
	"x_0=0"
	"y_0=0"
	"ellps=GRS80"
	"units=m"
	"vunits=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=20 +lon_0=136 +k=0.9999 +x_0=0 +y_0=0 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=20 +lon_0=136 +k=0.9999 +x_0=0 +y_0=0 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 11444, 'EPSG', 11444, '+proj=tmerc +lat_0=20 +lon_0=136 +k=0.9999 +x_0=0 +y_0=0 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs', 'COMPD_CS["JGD2024 / Japan Plane Rectangular CS XVIII + JGD2024 (vertical) height",PROJCS["JGD2024 / Japan Plane Rectangular CS XVIII",GEOGCS["JGD2024",DATUM["Japanese_Geodetic_Datum_2024",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1128"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6668"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",20],PARAMETER["central_meridian",136],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","6686"]],VERT_CS["JGD2024 (vertical) height",VERT_DATUM["Japanese Geodetic Datum 2024 (vertical)",2005,AUTHORITY["EPSG","1450"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","11317"]],AUTHORITY["EPSG","11444"]]');