EPSG:4819 DEPRECATED

Nord Sahara 1959 (Paris)

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

Selected transformation

Remarks:

Information source:

Revision date: 2002-09-19

Attributes

Unit: grad

Geodetic CRS: Nord Sahara 1959 (Paris)

Datum: Nord Sahara 1959 (Paris)

Ellipsoid: Clarke 1880 (RGS)

Prime meridian: Paris

Data source: EPSG

Information source: "Le System Geodesique Nord-Sahara"; IGN Paris

Revision date: 2000-10-19

Scope: Geodesy.

Area of use: Algeria; Morocco; Tunisia.

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

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Center coordinates
-0.75 32.09

WGS84 bounds:
-8.67 18.97
11.99 38.8

Algeria - onshore and offshore.
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Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        GEOGCRS["Nord Sahara 1959 (Paris)",
            DATUM["Nord Sahara 1959 (Paris)",
                ELLIPSOID["Clarke 1880 (RGS)",6378249.145,293.465,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Paris",2.5969213,
                ANGLEUNIT["grad",0.0157079632679489]],
            CS[ellipsoidal,2],
                AXIS["geodetic latitude (Lat)",north,
                    ORDER[1],
                    ANGLEUNIT["grad",0.0157079632679489]],
                AXIS["geodetic longitude (Lon)",east,
                    ORDER[2],
                    ANGLEUNIT["grad",0.0157079632679489]],
            ID["EPSG",4819]]],
    TARGETCRS[
        GEOGCRS["Nord Sahara 1959",
            DATUM["Nord Sahara 1959",
                ELLIPSOID["Clarke 1880 (RGS)",6378249.145,293.465,
                    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]],
            ID["EPSG",4307]]],
    ABRIDGEDTRANSFORMATION["Nord Sahara 1959 (Paris) to Nord Sahara 1959 (1)",
        METHOD["Longitude rotation",
            ID["EPSG",9601]],
        PARAMETER["Longitude offset",8414.02501199997,
            ID["EPSG",8602]],
        ID["EPSG",1882]]]

Definition: PROJ.4

+proj=longlat +a=6378249.145 +rf=293.465 +pm=paris +towgs84=-186,-93,310,0,0,0,0 +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4819","+proj=longlat +a=6378249.145 +rf=293.465 +pm=paris +towgs84=-186,-93,310,0,0,0,0 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "Nord Sahara 1959 (Paris)",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Nord Sahara 1959 (Paris)",
            "ellipsoid": {
                "name": "Clarke 1880 (RGS)",
                "semi_major_axis": 6378249.145,
                "inverse_flattening": 293.465
            },
            "prime_meridian": {
                "name": "Paris",
                "longitude": {
                    "value": 2.5969213,
                    "unit": {
                        "type": "AngularUnit",
                        "name": "grad",
                        "conversion_factor": 0.0157079632679489
                    }
                }
            }
        },
        "coordinate_system": {
            "subtype": "ellipsoidal",
            "axis": [
                {
                    "name": "Geodetic latitude",
                    "abbreviation": "Lat",
                    "direction": "north",
                    "unit": {
                        "type": "AngularUnit",
                        "name": "grad",
                        "conversion_factor": 0.0157079632679489
                    }
                },
                {
                    "name": "Geodetic longitude",
                    "abbreviation": "Lon",
                    "direction": "east",
                    "unit": {
                        "type": "AngularUnit",
                        "name": "grad",
                        "conversion_factor": 0.0157079632679489
                    }
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 4819
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "Nord Sahara 1959",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Nord Sahara 1959",
            "ellipsoid": {
                "name": "Clarke 1880 (RGS)",
                "semi_major_axis": 6378249.145,
                "inverse_flattening": 293.465
            }
        },
        "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": 4307
        }
    },
    "transformation": {
        "name": "Nord Sahara 1959 (Paris) to Nord Sahara 1959 (1)",
        "method": {
            "name": "Longitude rotation",
            "id": {
                "authority": "EPSG",
                "code": 9601
            }
        },
        "parameters": [
            {
                "name": "Longitude offset",
                "value": 8414.02501199997,
                "unit": {
                    "type": "Unit",
                    "name": "",
                    "conversion_factor": 1
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8602
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 1882
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"a=6378249.145"
	"rf=293.465"
	"pm=paris"
	"towgs84=-186,-93,310,0,0,0,0"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +a=6378249.145 +rf=293.465 +pm=paris +towgs84=-186,-93,310,0,0,0,0 +no_defs +type=crs">
	<Layer srs="+proj=longlat +a=6378249.145 +rf=293.465 +pm=paris +towgs84=-186,-93,310,0,0,0,0 +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4819, 'EPSG', 4819, '+proj=longlat +a=6378249.145 +rf=293.465 +pm=paris +towgs84=-186,-93,310,0,0,0,0 +no_defs +type=crs', 'None');