EPSG:2312

Garoua / UTM zone 33N

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

  • Cameroon - Garoua area. , accuracy 6.0 m, code 8631 (default)

Selected transformation

Remarks:

Information source: OGP

Revision date: 2020-03-14

Attributes

Unit: metre

Geodetic CRS: Garoua

Datum: Garoua

Ellipsoid: Clarke 1880 (RGS)

Prime meridian: Greenwich

Data source: EPSG

Information source: TotalFinaElf

Revision date: 2002-02-12

Scope: Engineering survey, topographic mapping.

Area of use: Cameroon - Garoua area.

Coordinate system: Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.

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SimpleMap

Center coordinates
340358.49 1038841.22

Projected bounds:
269202.86 986092.36
411312.37 1091750.38

WGS84 bounds:
12.9 8.92
14.19 9.87

Cameroon - Garoua area.
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Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        PROJCRS["Garoua / UTM zone 33N",
            BASEGEOGCRS["Garoua",
                DATUM["Garoua",
                    ELLIPSOID["Clarke 1880 (RGS)",6378249.145,293.465,
                        LENGTHUNIT["metre",1]]],
                PRIMEM["Greenwich",0,
                    ANGLEUNIT["degree",0.0174532925199433]],
                ID["EPSG",4197]],
            CONVERSION["UTM zone 33N",
                METHOD["Transverse Mercator",
                    ID["EPSG",9807]],
                PARAMETER["Latitude of natural origin",0,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8801]],
                PARAMETER["Longitude of natural origin",15,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8802]],
                PARAMETER["Scale factor at natural origin",0.9996,
                    SCALEUNIT["unity",1],
                    ID["EPSG",8805]],
                PARAMETER["False easting",500000,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8806]],
                PARAMETER["False northing",0,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8807]]],
            CS[Cartesian,2],
                AXIS["(E)",east,
                    ORDER[1],
                    LENGTHUNIT["metre",1]],
                AXIS["(N)",north,
                    ORDER[2],
                    LENGTHUNIT["metre",1]],
            ID["EPSG",2312]]],
    TARGETCRS[
        GEOGCRS["WGS 72BE",
            DYNAMIC[
                FRAMEEPOCH[1972]],
            DATUM["WGS 72 Transit Broadcast Ephemeris",
                ELLIPSOID["WGS 72",6378135,298.26,
                    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",4324]]],
    ABRIDGEDTRANSFORMATION["Garoua to WGS 72BE (1)",
        METHOD["Geocentric translations (geog2D domain)",
            ID["EPSG",9603]],
        PARAMETER["X-axis translation",-56.1,
            ID["EPSG",8605]],
        PARAMETER["Y-axis translation",-167.8,
            ID["EPSG",8606]],
        PARAMETER["Z-axis translation",13.1,
            ID["EPSG",8607]],
        ID["EPSG",1805]]]

Definition: PROJ.4

+proj=utm +zone=33 +a=6378249.145 +rf=293.465 +towgs84=0,0,1.9,0,0,0.814,-0.38 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:2312","+proj=utm +zone=33 +a=6378249.145 +rf=293.465 +towgs84=0,0,1.9,0,0,0.814,-0.38 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "ProjectedCRS",
        "name": "Garoua / UTM zone 33N",
        "base_crs": {
            "name": "Garoua",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "Garoua",
                "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": 4197
            }
        },
        "conversion": {
            "name": "UTM zone 33N",
            "method": {
                "name": "Transverse Mercator",
                "id": {
                    "authority": "EPSG",
                    "code": 9807
                }
            },
            "parameters": [
                {
                    "name": "Latitude of natural origin",
                    "value": 0,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8801
                    }
                },
                {
                    "name": "Longitude of natural origin",
                    "value": 15,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8802
                    }
                },
                {
                    "name": "Scale factor at natural origin",
                    "value": 0.9996,
                    "unit": "unity",
                    "id": {
                        "authority": "EPSG",
                        "code": 8805
                    }
                },
                {
                    "name": "False easting",
                    "value": 500000,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8806
                    }
                },
                {
                    "name": "False northing",
                    "value": 0,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8807
                    }
                }
            ]
        },
        "coordinate_system": {
            "subtype": "Cartesian",
            "axis": [
                {
                    "name": "Easting",
                    "abbreviation": "E",
                    "direction": "east",
                    "unit": "metre"
                },
                {
                    "name": "Northing",
                    "abbreviation": "N",
                    "direction": "north",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 2312
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "WGS 72BE",
        "datum": {
            "type": "DynamicGeodeticReferenceFrame",
            "name": "WGS 72 Transit Broadcast Ephemeris",
            "frame_reference_epoch": 1972,
            "ellipsoid": {
                "name": "WGS 72",
                "semi_major_axis": 6378135,
                "inverse_flattening": 298.26
            }
        },
        "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": 4324
        }
    },
    "transformation": {
        "name": "Garoua to WGS 72BE (1)",
        "method": {
            "name": "Geocentric translations (geog2D domain)",
            "id": {
                "authority": "EPSG",
                "code": 9603
            }
        },
        "parameters": [
            {
                "name": "X-axis translation",
                "value": -56.1,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8605
                }
            },
            {
                "name": "Y-axis translation",
                "value": -167.8,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8606
                }
            },
            {
                "name": "Z-axis translation",
                "value": 13.1,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8607
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 1805
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=utm"
	"zone=33"
	"a=6378249.145"
	"rf=293.465"
	"towgs84=0,0,1.9,0,0,0.814,-0.38"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=utm +zone=33 +a=6378249.145 +rf=293.465 +towgs84=0,0,1.9,0,0,0.814,-0.38 +units=m +no_defs +type=crs">
	<Layer srs="+proj=utm +zone=33 +a=6378249.145 +rf=293.465 +towgs84=0,0,1.9,0,0,0.814,-0.38 +units=m +no_defs +type=crs">
	</Layer>
</Map>