EPSG:3819

HD1909

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Available transformations
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  • Hungary. , accuracy 3.0 m, code 3817 (default) [7]

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

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Center coordinates
19.51 47.16

WGS84 bounds:
16.11 45.74
22.9 48.58

Hungary.
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Definition: OGC Well Known Text

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,-3.408]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","3819"]]

Definition: OGC Well Known Text 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]]

Definition: ESRI Well Known Text

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,-3.408 +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,-3.408 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/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,-3.408]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],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,-3.408"
	"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,-3.408 +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=bessel +towgs84=595.48,121.69,515.35,-4.115,2.9383,-0.853,-3.408 +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,-3.408 +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,-3.408]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","3819"]]');