EPSG:23700

HD72 / EOV

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

Selected transformation

Remarks: Approximation at the +/- 1m level assuming that ETRF89 is equivalent to WGS 84.

Information source: OGP

Revision date: 1997-07-22

Steps of transformation: 1273 1149

Attributes

Unit: metre

Geodetic CRS: HD72

Datum: Hungarian Datum 1972

Ellipsoid: GRS 1967

Prime meridian: Greenwich

Data source: EPSG

Revision date: 1997-07-22

Steps of transformation: 1273 1149

Scope: Engineering survey, topographic mapping.

Area of use: Hungary.

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

Covered area powered by MapTiler MapTiler logo
SimpleMap

Center coordinates
684607.84 201836.74

Projected bounds:
421306.57 48183.71
934135.48 366631.71

WGS84 bounds:
16.11 45.74
22.9 48.58

Hungary.
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Definition: PROJ.4

+proj=somerc +lat_0=47.1443937222222 +lon_0=19.0485717777778 +k_0=0.99993 +x_0=650000 +y_0=200000 +ellps=GRS67 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:23700","+proj=somerc +lat_0=47.1443937222222 +lon_0=19.0485717777778 +k_0=0.99993 +x_0=650000 +y_0=200000 +ellps=GRS67 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "BoundCRS",
        "source_crs": {
            "type": "ProjectedCRS",
            "name": "HD72 / EOV",
            "base_crs": {
                "name": "HD72",
                "datum": {
                    "type": "GeodeticReferenceFrame",
                    "name": "Hungarian Datum 1972",
                    "ellipsoid": {
                        "name": "GRS 1967",
                        "semi_major_axis": 6378160,
                        "inverse_flattening": 298.247167427
                    }
                },
                "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": 4237
                }
            },
            "conversion": {
                "name": "Egyseges Orszagos Vetuleti",
                "method": {
                    "name": "Hotine Oblique Mercator (variant B)",
                    "id": {
                        "authority": "EPSG",
                        "code": 9815
                    }
                },
                "parameters": [
                    {
                        "name": "Latitude of projection centre",
                        "value": 47.1443937222222,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8811
                        }
                    },
                    {
                        "name": "Longitude of projection centre",
                        "value": 19.0485717777778,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8812
                        }
                    },
                    {
                        "name": "Azimuth of initial line",
                        "value": 90,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8813
                        }
                    },
                    {
                        "name": "Angle from Rectified to Skew Grid",
                        "value": 90,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8814
                        }
                    },
                    {
                        "name": "Scale factor on initial line",
                        "value": 0.99993,
                        "unit": "unity",
                        "id": {
                            "authority": "EPSG",
                            "code": 8815
                        }
                    },
                    {
                        "name": "Easting at projection centre",
                        "value": 650000,
                        "unit": "metre",
                        "id": {
                            "authority": "EPSG",
                            "code": 8816
                        }
                    },
                    {
                        "name": "Northing at projection centre",
                        "value": 200000,
                        "unit": "metre",
                        "id": {
                            "authority": "EPSG",
                            "code": 8817
                        }
                    }
                ]
            },
            "coordinate_system": {
                "subtype": "Cartesian",
                "axis": [
                    {
                        "name": "Easting",
                        "abbreviation": "Y",
                        "direction": "east",
                        "unit": "metre"
                    },
                    {
                        "name": "Northing",
                        "abbreviation": "X",
                        "direction": "north",
                        "unit": "metre"
                    }
                ]
            },
            "id": {
                "authority": "EPSG",
                "code": 23700
            }
        },
        "target_crs": {
            "type": "GeographicCRS",
            "name": "ETRS89",
            "datum_ensemble": {
                "name": "European Terrestrial Reference System 1989 ensemble",
                "members": [
                    {
                        "name": "European Terrestrial Reference Frame 1989"
                    },
                    {
                        "name": "European Terrestrial Reference Frame 1990"
                    },
                    {
                        "name": "European Terrestrial Reference Frame 1991"
                    },
                    {
                        "name": "European Terrestrial Reference Frame 1992"
                    },
                    {
                        "name": "European Terrestrial Reference Frame 1993"
                    },
                    {
                        "name": "European Terrestrial Reference Frame 1994"
                    },
                    {
                        "name": "European Terrestrial Reference Frame 1996"
                    },
                    {
                        "name": "European Terrestrial Reference Frame 1997"
                    },
                    {
                        "name": "European Terrestrial Reference Frame 2000"
                    },
                    {
                        "name": "European Terrestrial Reference Frame 2005"
                    },
                    {
                        "name": "European Terrestrial Reference Frame 2014"
                    }
                ],
                "ellipsoid": {
                    "name": "GRS 1980",
                    "semi_major_axis": 6378137,
                    "inverse_flattening": 298.257222101
                },
                "accuracy": "0.1"
            },
            "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": 4258
            }
        },
        "transformation": {
            "name": "HD72 to ETRS89 (1)",
            "method": {
                "name": "Coordinate Frame rotation (geog2D domain)",
                "id": {
                    "authority": "EPSG",
                    "code": 9607
                }
            },
            "parameters": [
                {
                    "name": "X-axis translation",
                    "value": -56,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8605
                    }
                },
                {
                    "name": "Y-axis translation",
                    "value": 75.77,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8606
                    }
                },
                {
                    "name": "Z-axis translation",
                    "value": 15.31,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8607
                    }
                },
                {
                    "name": "X-axis rotation",
                    "value": -0.37,
                    "unit": {
                        "type": "AngularUnit",
                        "name": "arc-second",
                        "conversion_factor": 4.84813681109536e-06
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8608
                    }
                },
                {
                    "name": "Y-axis rotation",
                    "value": -0.2,
                    "unit": {
                        "type": "AngularUnit",
                        "name": "arc-second",
                        "conversion_factor": 4.84813681109536e-06
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8609
                    }
                },
                {
                    "name": "Z-axis rotation",
                    "value": -0.21,
                    "unit": {
                        "type": "AngularUnit",
                        "name": "arc-second",
                        "conversion_factor": 4.84813681109536e-06
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8610
                    }
                },
                {
                    "name": "Scale difference",
                    "value": -1.00999999996798,
                    "unit": {
                        "type": "ScaleUnit",
                        "name": "parts per million",
                        "conversion_factor": 1e-06
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8611
                    }
                }
            ],
            "id": {
                "authority": "EPSG",
                "code": 1273
            }
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "WGS 84",
        "datum_ensemble": {
            "name": "World Geodetic System 1984 ensemble",
            "members": [
                {
                    "name": "World Geodetic System 1984 (Transit)"
                },
                {
                    "name": "World Geodetic System 1984 (G730)"
                },
                {
                    "name": "World Geodetic System 1984 (G873)"
                },
                {
                    "name": "World Geodetic System 1984 (G1150)"
                },
                {
                    "name": "World Geodetic System 1984 (G1674)"
                },
                {
                    "name": "World Geodetic System 1984 (G1762)"
                },
                {
                    "name": "World Geodetic System 1984 (G2139)"
                }
            ],
            "ellipsoid": {
                "name": "WGS 84",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257223563
            },
            "accuracy": "2.0"
        },
        "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": "ETRS89 to WGS 84 (1)",
        "method": {
            "name": "Geocentric translations (geog2D domain)",
            "id": {
                "authority": "EPSG",
                "code": 9603
            }
        },
        "parameters": [
            {
                "name": "X-axis translation",
                "value": 0,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8605
                }
            },
            {
                "name": "Y-axis translation",
                "value": 0,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8606
                }
            },
            {
                "name": "Z-axis translation",
                "value": 0,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8607
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 1149
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=somerc"
	"lat_0=47.1443937222222"
	"lon_0=19.0485717777778"
	"k_0=0.99993"
	"x_0=650000"
	"y_0=200000"
	"ellps=GRS67"
	"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=somerc +lat_0=47.1443937222222 +lon_0=19.0485717777778 +k_0=0.99993 +x_0=650000 +y_0=200000 +ellps=GRS67 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs">
	<Layer srs="+proj=somerc +lat_0=47.1443937222222 +lon_0=19.0485717777778 +k_0=0.99993 +x_0=650000 +y_0=200000 +ellps=GRS67 +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 ( 23700, 'EPSG', 23700, '+proj=somerc +lat_0=47.1443937222222 +lon_0=19.0485717777778 +k_0=0.99993 +x_0=650000 +y_0=200000 +ellps=GRS67 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'None');

Definition: OGC WKT 2 (2019)

BOUNDCRS[SOURCECRS[BOUNDCRS[SOURCECRS[PROJCRS["HD72 / EOV",BASEGEOGCRS["HD72",DATUM["Hungarian Datum 1972",ELLIPSOID["GRS 1967",6378160,298.247167427,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4237]],CONVERSION["Egyseges Orszagos Vetuleti",METHOD["Hotine Oblique Mercator (variant B)",ID["EPSG",9815]],PARAMETER["Latitude of projection centre",47.1443937222222,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8811]],PARAMETER["Longitude of projection centre",19.0485717777778,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8812]],PARAMETER["Azimuth of initial line",90,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8813]],PARAMETER["Angle from Rectified to Skew Grid",90,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8814]],PARAMETER["Scale factor on initial line",0.99993,SCALEUNIT["unity",1],ID["EPSG",8815]],PARAMETER["Easting at projection centre",650000,LENGTHUNIT["metre",1],ID["EPSG",8816]],PARAMETER["Northing at projection centre",200000,LENGTHUNIT["metre",1],ID["EPSG",8817]]],CS[Cartesian,2],AXIS["easting (Y)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["northing (X)",north,ORDER[2],LENGTHUNIT["metre",1]],ID["EPSG",23700]]],TARGETCRS[GEOGCRS["ETRS89",ENSEMBLE["European Terrestrial Reference System 1989 ensemble",MEMBER["European Terrestrial Reference Frame 1989"],MEMBER["European Terrestrial Reference Frame 1990"],MEMBER["European Terrestrial Reference Frame 1991"],MEMBER["European Terrestrial Reference Frame 1992"],MEMBER["European Terrestrial Reference Frame 1993"],MEMBER["European Terrestrial Reference Frame 1994"],MEMBER["European Terrestrial Reference Frame 1996"],MEMBER["European Terrestrial Reference Frame 1997"],MEMBER["European Terrestrial Reference Frame 2000"],MEMBER["European Terrestrial Reference Frame 2005"],MEMBER["European Terrestrial Reference Frame 2014"],ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1]],ENSEMBLEACCURACY[0.1]],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",4258]]],ABRIDGEDTRANSFORMATION["HD72 to ETRS89 (1)",METHOD["Coordinate Frame rotation (geog2D domain)",ID["EPSG",9607]],PARAMETER["X-axis translation",-56,ID["EPSG",8605]],PARAMETER["Y-axis translation",75.77,ID["EPSG",8606]],PARAMETER["Z-axis translation",15.31,ID["EPSG",8607]],PARAMETER["X-axis rotation",-0.37,ID["EPSG",8608]],PARAMETER["Y-axis rotation",-0.2,ID["EPSG",8609]],PARAMETER["Z-axis rotation",-0.21,ID["EPSG",8610]],PARAMETER["Scale difference",0.99999899,ID["EPSG",8611]],ID["EPSG",1273]]]],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["ETRS89 to WGS 84 (1)",METHOD["Geocentric translations (geog2D domain)",ID["EPSG",9603]],PARAMETER["X-axis translation",0,ID["EPSG",8605]],PARAMETER["Y-axis translation",0,ID["EPSG",8606]],PARAMETER["Z-axis translation",0,ID["EPSG",8607]],USAGE[SCOPE["(null/copy) Approximation for medium and low accuracy applications assuming equality between plate-fixed static and earth-fixed dynamic CRSs, ignoring static/dynamic CRS differences."],AREA["Europe - onshore and offshore: Albania; Andorra; Austria; Belgium; Bosnia and Herzegovina; Bulgaria; Croatia; Cyprus; Czechia; Denmark; Estonia; Faroe Islands; Finland; France; Germany; Gibraltar; Greece; Hungary; Ireland; Italy; Kosovo; Latvia; Liechtenstein; Lithuania; Luxembourg; Malta; Moldova; Monaco; Montenegro; Netherlands; North Macedonia; Norway including Svalbard and Jan Mayen; Poland; Portugal; Romania; San Marino; Serbia; Slovakia; Slovenia; Spain; Sweden; Switzerland; United Kingdom (UK) including Channel Islands and Isle of Man; Vatican City State."],BBOX[32.88,-16.1,84.73,40.18]],ID["EPSG",1149],REMARK["ETRS89 and WGS 84 are realizations of ITRS coincident to within 1 metre. This transformation has an accuracy equal to the coincidence figure."]]]