EPSG:4237

HD72

Transform Get position on a map

Available transformations
to EPSG:11163
EPSG:11163 - ETRS89-HUN [ETRF2000]

Selected transformation

Name: HD72 to ETRS89-HUN [ETRF2000] (2)

Method: NTv2

Grid Files: hu_bme_hd72corr.gsb

Remarks: Emulation to better than 2mm of the official SGO EHT transformation. ETRF2000 coordinates of the grid nodes were converted to HD72 using the online EHT tool. For cadastral and other legal purposes the official transformation (CT code 10663) must be used.

Information source: Budapest University of Technology and Economics (BME) - Faculty of Civil Engineering. https://github.com/OSGeoLabBp/eov2etrs/blob/master/etrs2eov_doc.rst

Revision date: 2025-10-31

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: HD72

Datum: Hungarian Datum 1972

Ellipsoid: GRS 1967

Prime meridian: Greenwich

Data source: EPSG

Revision date: 2008-08-02

Scope: Geodesy.

Remarks: Replaced HD1909 (EPSG CRS code 3819).

Area of use: Hungary.

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[
        GEOGCRS["HD72",
            DATUM["Hungarian Datum 1972",
                ELLIPSOID["GRS 1967",6378160,298.247167427,
                    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["Geodesy."],
                AREA["Hungary."],
                BBOX[45.74,16.11,48.58,22.9]],
            ID["EPSG",4237],
            REMARK["Replaced HD1909 (EPSG CRS code 3819)."]]],
    TARGETCRS[
        GEOGCRS["ETRS89-HUN [ETRF2000]",
            DATUM["ETRS89-HUN [ETRF2000]",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]],
                ANCHOREPOCH[2024]],
            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["Hungary."],
                BBOX[45.74,16.11,48.58,22.9]],
            ID["EPSG",11163],
            REMARK["Horizontal component of national realization of ETRS89 in Hungary."]]],
    ABRIDGEDTRANSFORMATION["HD72 to ETRS89-HUN [ETRF2000] (2)",
        METHOD["NTv2",
            ID["EPSG",9615]],
        PARAMETERFILE["Latitude and longitude difference file","hu_bme_hd72corr.gsb"],
        USAGE[
            SCOPE["Geodesy, engineering survey, topographic mapping."],
            AREA["Hungary."],
            BBOX[45.74,16.11,48.58,22.9]],
        ID["EPSG",10668],
        REMARK["Emulation to better than 2mm of the official SGO EHT transformation. ETRF2000 coordinates of the grid nodes were converted to HD72 using the online EHT tool. For cadastral and other legal purposes the official transformation (CT code 10663) must be used."]]]

Definition: PROJ.4

+proj=longlat +ellps=GRS67 +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4237","+proj=longlat +ellps=GRS67 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "GeographicCRS",
        "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
        },
        "remarks": "Replaced HD1909 (EPSG CRS code 3819)."
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "ETRS89-HUN [ETRF2000]",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "ETRS89-HUN [ETRF2000]",
            "anchor_epoch": 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": 11163
        },
        "remarks": "Horizontal component of national realization of ETRS89 in Hungary."
    },
    "transformation": {
        "name": "HD72 to ETRS89-HUN [ETRF2000] (2)",
        "method": {
            "name": "NTv2",
            "id": {
                "authority": "EPSG",
                "code": 9615
            }
        },
        "parameters": [
            {
                "name": "Latitude and longitude difference file",
                "value": "hu_bme_hd72corr.gsb",
                "id": {
                    "authority": "EPSG",
                    "code": 8656
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 10668
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=GRS67"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=GRS67 +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=GRS67 +no_defs +type=crs">
	</Layer>
</Map>