EPSG:3819

HD1909

Available transformations
to EPSG:4326
No other targets exist for this CRS

Selected transformation

Method: Coordinate Frame rotation (geog2D domain)

Remarks: Horizontal coordinates of 66 points of the National Geodetic Network were used to compute this transformation.

Information source: Timar, Molnar and Marta in Geodezia es Kartografia 55(3) pp16-21. www.fomi.hu/internet/magyar/szaklap/geodkart.htm

Revision date: 2020-03-14

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: HD1909

Datum: Hungarian Datum 1909

Ellipsoid: Bessel 1841

Prime meridian: Greenwich

Data source: EPSG

Information source: Timár, Molnár and Márta in Geodezia es Kartografia 55(3) pp16-21. www.fomi.hu/internet/magyar/szaklap/geodkart.htm

Revision date: 2008-08-02

Scope: Geodesy.

Remarks: Replaced earlier HD1863 adjustment also on Bessel ellipsoid. Both HD1863 and HD1909 were originally on Ferro Prime Meridian but subsequently converted to Greenwich. Replaced by HD72 (CRS code 4237).

Area of use: Hungary.

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

Center coordinates
19.51 47.16

WGS84 bounds:
16.11 45.74
22.9 48.58

Hungary.
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Definition: Well Known Text (WKT)

GEOGCS["HD1909",
    DATUM["Hungarian_Datum_1909",
        SPHEROID["Bessel 1841",6377397.155,299.1528128],
        TOWGS84[595.48,121.69,515.35,-4.115,2.9383,-0.853,-3.40799999998]],
    PRIMEM["Greenwich",0],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","3819"]]

Definition: ESRI WKT

GEOGCS["GCS_HD1909",DATUM["D_Hungarian_Datum_1909",SPHEROID["Bessel_1841",6377397.155,299.1528128]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +ellps=bessel +towgs84=595.48,121.69,515.35,-4.115,2.9383,-0.853,-3.40799999998254 +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:3819","+proj=longlat +ellps=bessel +towgs84=595.48,121.69,515.35,-4.115,2.9383,-0.853,-3.40799999998254 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json",
    "type": "GeographicCRS",
    "name": "HD1909",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "Hungarian Datum 1909",
        "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"
            }
        ]
    },
    "scope": "Geodesy.",
    "area": "Hungary.",
    "bbox": {
        "south_latitude": 45.74,
        "west_longitude": 16.11,
        "north_latitude": 48.58,
        "east_longitude": 22.9
    },
    "id": {
        "authority": "EPSG",
        "code": 3819
    }
}

Definition: GeoServer

3819=GEOGCS["HD1909",DATUM["Hungarian_Datum_1909",SPHEROID["Bessel 1841",6377397.155,299.1528128],TOWGS84[595.48,121.69,515.35,-4.115,2.9383,-0.853,-3.40799999998]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","3819"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=bessel"
	"towgs84=595.48,121.69,515.35,-4.115,2.9383,-0.853,-3.40799999998254"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=bessel +towgs84=595.48,121.69,515.35,-4.115,2.9383,-0.853,-3.40799999998254 +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=bessel +towgs84=595.48,121.69,515.35,-4.115,2.9383,-0.853,-3.40799999998254 +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 3819, 'EPSG', 3819, '+proj=longlat +ellps=bessel +towgs84=595.48,121.69,515.35,-4.115,2.9383,-0.853,-3.40799999998254 +no_defs +type=crs', 'GEOGCS["HD1909",DATUM["Hungarian_Datum_1909",SPHEROID["Bessel 1841",6377397.155,299.1528128],TOWGS84[595.48,121.69,515.35,-4.115,2.9383,-0.853,-3.40799999998]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","3819"]]');

Definition: OGC WKT

GEOGCS["HD1909",DATUM["Hungarian_Datum_1909",SPHEROID["Bessel 1841",6377397.155,299.1528128],TOWGS84[595.48,121.69,515.35,-4.115,2.9383,-0.853,-3.40799999998]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","3819"]]

Definition: OGC WKT 2 (2019)

GEOGCRS["HD1909",DATUM["Hungarian Datum 1909",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]],USAGE[SCOPE["Geodesy."],AREA["Hungary."],BBOX[45.74,16.11,48.58,22.9]],ID["EPSG",3819]]