EPSG:3987

Katanga 1955 / Katanga Gauss zone B

Transform Get position on a map

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

Selected transformation

Method: Molodensky-Badekas (CF geog2D domain)

Remarks: Parameter values taken from Katanga 1955 to RGRDC 2005 (2) (code 4067) assuming that RGRDC 2005 is equivalent to WGS 84 within the accuracy of the transformation.

Information source: SD Geomatique.

Revision date: 2020-03-14

Attributes

Unit: metre

Geodetic CRS: Katanga 1955

Datum: Katanga 1955

Ellipsoid: Clarke 1866

Prime meridian: Greenwich

Data source: EPSG

Information source: J. van der Straeten, "Triangulation du Katanga", Comite Special du Katanga (CSK), 1955.

Revision date: 2009-03-11

Scope: Cadastre, engineering survey.

Area of use: The Democratic Republic of the Congo (Zaire) - Katanga between 26°30'E and 29°30'E.

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

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Center coordinates
98183.65 215817.44

Projected bounds:
23179.93 166791.28
172946.32 264645.37

WGS84 bounds:
26.38 -12.01
27.75 -11.13

The Democratic Republic of the Congo (Zaire) - Katanga - Likasi-Lubumbashi area.
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Definition: OGC Well Known Text

PROJCS["Katanga 1955 / Katanga Gauss zone B",
    GEOGCS["Katanga 1955",
        DATUM["Katanga_1955",
            SPHEROID["Clarke 1866",6378206.4,294.978698213898],
            TOWGS84[-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4695"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",-9],
    PARAMETER["central_meridian",28],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",200000],
    PARAMETER["false_northing",500000],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","3987"]]

Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        PROJCRS["Katanga 1955 / Katanga Gauss zone B",
            BASEGEOGCRS["Katanga 1955",
                DATUM["Katanga 1955",
                    ELLIPSOID["Clarke 1866",6378206.4,294.978698213898,
                        LENGTHUNIT["metre",1]]],
                PRIMEM["Greenwich",0,
                    ANGLEUNIT["degree",0.0174532925199433]],
                ID["EPSG",4695]],
            CONVERSION["Katanga Gauss zone B",
                METHOD["Transverse Mercator",
                    ID["EPSG",9807]],
                PARAMETER["Latitude of natural origin",-9,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8801]],
                PARAMETER["Longitude of natural origin",28,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8802]],
                PARAMETER["Scale factor at natural origin",1,
                    SCALEUNIT["unity",1],
                    ID["EPSG",8805]],
                PARAMETER["False easting",200000,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8806]],
                PARAMETER["False northing",500000,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8807]]],
            CS[Cartesian,2],
                AXIS["easting (X)",east,
                    ORDER[1],
                    LENGTHUNIT["metre",1]],
                AXIS["northing (Y)",north,
                    ORDER[2],
                    LENGTHUNIT["metre",1]],
            USAGE[
                SCOPE["Cadastre, engineering survey."],
                AREA["The Democratic Republic of the Congo (Zaire) - Katanga between 26°30'E and 29°30'E."],
                BBOX[-13.44,26.5,-4.99,29.5]],
            ID["EPSG",3987]]],
    TARGETCRS[
        GEOGCRS["WGS 84",
            ENSEMBLE["World Geodetic System 1984 ensemble",
                MEMBER["World Geodetic System 1984 (Transit)"],
                MEMBER["World Geodetic System 1984 (G730)"],
                MEMBER["World Geodetic System 1984 (G873)"],
                MEMBER["World Geodetic System 1984 (G1150)"],
                MEMBER["World Geodetic System 1984 (G1674)"],
                MEMBER["World Geodetic System 1984 (G1762)"],
                MEMBER["World Geodetic System 1984 (G2139)"],
                ELLIPSOID["WGS 84",6378137,298.257223563,
                    LENGTHUNIT["metre",1]],
                ENSEMBLEACCURACY[2.0]],
            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["Horizontal component of 3D system."],
                AREA["World."],
                BBOX[-90,-180,90,180]],
            ID["EPSG",4326]]],
    ABRIDGEDTRANSFORMATION["Transformation from unknown to WGS84",
        METHOD["Position Vector transformation (geog2D domain)",
            ID["EPSG",9606]],
        PARAMETER["X-axis translation",-102.283,
            ID["EPSG",8605]],
        PARAMETER["Y-axis translation",-10.277,
            ID["EPSG",8606]],
        PARAMETER["Z-axis translation",-257.396,
            ID["EPSG",8607]],
        PARAMETER["X-axis rotation",-3.976,
            ID["EPSG",8608]],
        PARAMETER["Y-axis rotation",-0.002,
            ID["EPSG",8609]],
        PARAMETER["Z-axis rotation",-6.203,
            ID["EPSG",8610]],
        PARAMETER["Scale difference",1.000012315,
            ID["EPSG",8611]]]]

Definition: ESRI Well Known Text

PROJCS["Katanga_1955_Katanga_Gauss_Zone_B",
    GEOGCS["GCS_Katanga_1955",
        DATUM["D_Katanga_1955",
            SPHEROID["Clarke_1866",6378206.4,294.978698213898]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Gauss_Kruger"],
    PARAMETER["False_Easting",200000.0],
    PARAMETER["False_Northing",500000.0],
    PARAMETER["Central_Meridian",28.0],
    PARAMETER["Scale_Factor",1.0],
    PARAMETER["Latitude_Of_Origin",-9.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=tmerc +lat_0=-9 +lon_0=28 +k=1 +x_0=200000 +y_0=500000 +ellps=clrk66 +towgs84=-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:3987","+proj=tmerc +lat_0=-9 +lon_0=28 +k=1 +x_0=200000 +y_0=500000 +ellps=clrk66 +towgs84=-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315 +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": "Katanga 1955 / Katanga Gauss zone B",
        "base_crs": {
            "name": "Katanga 1955",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "Katanga 1955",
                "ellipsoid": {
                    "name": "Clarke 1866",
                    "semi_major_axis": 6378206.4,
                    "semi_minor_axis": 6356583.8
                }
            },
            "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": 4695
            }
        },
        "conversion": {
            "name": "Katanga Gauss zone B",
            "method": {
                "name": "Transverse Mercator",
                "id": {
                    "authority": "EPSG",
                    "code": 9807
                }
            },
            "parameters": [
                {
                    "name": "Latitude of natural origin",
                    "value": -9,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8801
                    }
                },
                {
                    "name": "Longitude of natural origin",
                    "value": 28,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8802
                    }
                },
                {
                    "name": "Scale factor at natural origin",
                    "value": 1,
                    "unit": "unity",
                    "id": {
                        "authority": "EPSG",
                        "code": 8805
                    }
                },
                {
                    "name": "False easting",
                    "value": 200000,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8806
                    }
                },
                {
                    "name": "False northing",
                    "value": 500000,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8807
                    }
                }
            ]
        },
        "coordinate_system": {
            "subtype": "Cartesian",
            "axis": [
                {
                    "name": "Easting",
                    "abbreviation": "X",
                    "direction": "east",
                    "unit": "metre"
                },
                {
                    "name": "Northing",
                    "abbreviation": "Y",
                    "direction": "north",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 3987
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "WGS 84",
        "datum_ensemble": {
            "name": "World Geodetic System 1984 ensemble",
            "members": [
                {
                    "name": "World Geodetic System 1984 (Transit)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1166
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G730)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1152
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G873)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1153
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1150)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1154
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1674)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1155
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1762)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1156
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G2139)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1309
                    }
                }
            ],
            "ellipsoid": {
                "name": "WGS 84",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257223563
            },
            "accuracy": "2.0",
            "id": {
                "authority": "EPSG",
                "code": 6326
            }
        },
        "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": 4326
        }
    },
    "transformation": {
        "name": "Transformation from unknown to WGS84",
        "method": {
            "name": "Position Vector transformation (geog2D domain)",
            "id": {
                "authority": "EPSG",
                "code": 9606
            }
        },
        "parameters": [
            {
                "name": "X-axis translation",
                "value": -102.283,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8605
                }
            },
            {
                "name": "Y-axis translation",
                "value": -10.277,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8606
                }
            },
            {
                "name": "Z-axis translation",
                "value": -257.396,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8607
                }
            },
            {
                "name": "X-axis rotation",
                "value": -3.976,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8608
                }
            },
            {
                "name": "Y-axis rotation",
                "value": -0.002,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8609
                }
            },
            {
                "name": "Z-axis rotation",
                "value": -6.203,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8610
                }
            },
            {
                "name": "Scale difference",
                "value": 12.315,
                "unit": {
                    "type": "ScaleUnit",
                    "name": "parts per million",
                    "conversion_factor": 1e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8611
                }
            }
        ]
    }
}

Definition: GeoServer

3987=PROJCS["Katanga 1955 / Katanga Gauss zone B",GEOGCS["Katanga 1955",DATUM["Katanga_1955",SPHEROID["Clarke 1866",6378206.4,294.978698213898],TOWGS84[-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4695"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",-9],PARAMETER["central_meridian",28],PARAMETER["scale_factor",1],PARAMETER["false_easting",200000],PARAMETER["false_northing",500000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3987"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=-9"
	"lon_0=28"
	"k=1"
	"x_0=200000"
	"y_0=500000"
	"ellps=clrk66"
	"towgs84=-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=-9 +lon_0=28 +k=1 +x_0=200000 +y_0=500000 +ellps=clrk66 +towgs84=-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315 +units=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=-9 +lon_0=28 +k=1 +x_0=200000 +y_0=500000 +ellps=clrk66 +towgs84=-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 3987, 'EPSG', 3987, '+proj=tmerc +lat_0=-9 +lon_0=28 +k=1 +x_0=200000 +y_0=500000 +ellps=clrk66 +towgs84=-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315 +units=m +no_defs +type=crs', 'PROJCS["Katanga 1955 / Katanga Gauss zone B",GEOGCS["Katanga 1955",DATUM["Katanga_1955",SPHEROID["Clarke 1866",6378206.4,294.978698213898],TOWGS84[-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4695"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",-9],PARAMETER["central_meridian",28],PARAMETER["scale_factor",1],PARAMETER["false_easting",200000],PARAMETER["false_northing",500000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3987"]]');