EPSG:4809

BD50 (Brussels)

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: BD50 (Brussels)

Datum: Reseau National Belge 1950 (Brussels)

Ellipsoid: International 1924

Prime meridian: Brussels

Data source: EPSG

Information source: IGN Brussels.

Revision date: 2021-06-17

Scope: Geodesy.

Area of use: Belgium - onshore.

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

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SimpleMap

Center coordinates
0.08 50.5

WGS84 bounds:
2.5 49.5
6.4 51.51

Belgium - onshore.
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Definition: OGC Well Known Text

GEOGCS["BD50 (Brussels)",
    DATUM["Reseau_National_Belge_1950_Brussels",
        SPHEROID["International 1924",6378388,297,
            AUTHORITY["EPSG","7022"]],
        AUTHORITY["EPSG","6809"]],
    PRIMEM["Brussels",4.367975,
        AUTHORITY["EPSG","8910"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4809"]]

Definition: OGC Well Known Text 2 (2019)

GEOGCRS["BD50 (Brussels)",
    DATUM["Reseau National Belge 1950 (Brussels)",
        ELLIPSOID["International 1924",6378388,297,
            LENGTHUNIT["metre",1]]],
    PRIMEM["Brussels",4.367975,
        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["Belgium - onshore."],
        BBOX[49.5,2.5,51.51,6.4]],
    ID["EPSG",4809]]

Definition: ESRI Well Known Text

GEOGCS["GCS_Belge_1950_Brussels",
    DATUM["Reseau_National_Belge_1950_(Brussels)",
        SPHEROID["International_1924",6378388.0,297.0]],
    PRIMEM["Brussels",4.367975],
    UNIT["Degree",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +ellps=intl +pm=brussels +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4809","+proj=longlat +ellps=intl +pm=brussels +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeographicCRS",
    "name": "BD50 (Brussels)",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "Reseau National Belge 1950 (Brussels)",
        "ellipsoid": {
            "name": "International 1924",
            "semi_major_axis": 6378388,
            "inverse_flattening": 297
        },
        "prime_meridian": {
            "name": "Brussels",
            "longitude": 4.367975
        }
    },
    "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": "Belgium - onshore.",
    "bbox": {
        "south_latitude": 49.5,
        "west_longitude": 2.5,
        "north_latitude": 51.51,
        "east_longitude": 6.4
    },
    "id": {
        "authority": "EPSG",
        "code": 4809
    }
}

Definition: GeoServer

4809=GEOGCS["BD50 (Brussels)",DATUM["Reseau_National_Belge_1950_Brussels",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6809"]],PRIMEM["Brussels",4.367975,AUTHORITY["EPSG","8910"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4809"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=intl"
	"pm=brussels"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

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

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4809, 'EPSG', 4809, '+proj=longlat +ellps=intl +pm=brussels +no_defs +type=crs', 'GEOGCS["BD50 (Brussels)",DATUM["Reseau_National_Belge_1950_Brussels",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6809"]],PRIMEM["Brussels",4.367975,AUTHORITY["EPSG","8910"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4809"]]');