EPSG:4220

Camacupa 1948

Transform Get position on a map

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

Selected transformation

Method: Position Vector transformation (geog2D domain)

Remarks: Derived by GPS on two Topnav DGPS reference stations at Djeno and Luanda. Replaces Camacupa 1948 to WGS 84 (3). In block 18 replaced by BP from 1999 by Camacupa 1948 to WGS 84 (10).

Information source: OGP

Revision date: 2020-03-14

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: Camacupa 1948

Datum: Camacupa 1948

Ellipsoid: Clarke 1880 (RGS)

Prime meridian: Greenwich

Data source: EPSG

Information source: IOGP, Portuguese Hydrographic Institute and Clifford J. Mugnier, PE&RS journal, March 2001.

Revision date: 2020-04-30

Scope: Oil and gas exploration and production.

Remarks: Provisional adjustment. Coastal stations used for offshore radio-navigation positioning and determination of transformations to WGS. Differs from second adjustment (Camacupa 2015, CRS code 8694), which is not used for offshore E&P, by up to 25m.

Area of use: Angola - Angola proper - onshore and offshore.

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

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Center coordinates
11.92 -7.18

WGS84 bounds:
11.08 -8.34
12.75 -6.03

Angola - offshore blocks 1, 16 and 18.
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Definition: OGC Well Known Text

GEOGCS["Camacupa 1948",
    DATUM["Camacupa_1948",
        SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],
        TOWGS84[-41.057,-374.564,-226.287,0,0,0.554,0.219]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4220"]]

Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        GEOGCRS["Camacupa 1948",
            DATUM["Camacupa 1948",
                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]],
            USAGE[
                SCOPE["Oil and gas exploration and production."],
                AREA["Angola - Angola proper - onshore and offshore."],
                BBOX[-18.02,8.2,-5.82,24.09]],
            ID["EPSG",4220]]],
    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",-41.057,
            ID["EPSG",8605]],
        PARAMETER["Y-axis translation",-374.564,
            ID["EPSG",8606]],
        PARAMETER["Z-axis translation",-226.287,
            ID["EPSG",8607]],
        PARAMETER["X-axis rotation",0,
            ID["EPSG",8608]],
        PARAMETER["Y-axis rotation",0,
            ID["EPSG",8609]],
        PARAMETER["Z-axis rotation",0.554,
            ID["EPSG",8610]],
        PARAMETER["Scale difference",1.000000219,
            ID["EPSG",8611]]]]

Definition: ESRI Well Known Text

GEOGCS["GCS_Camacupa",
    DATUM["D_Camacupa",
        SPHEROID["Clarke_1880_RGS",6378249.145,293.465]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-41.057,-374.564,-226.287,0,0,0.554,0.219 +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4220","+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-41.057,-374.564,-226.287,0,0,0.554,0.219 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "Camacupa 1948",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Camacupa 1948",
            "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": 4220
        }
    },
    "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": -41.057,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8605
                }
            },
            {
                "name": "Y-axis translation",
                "value": -374.564,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8606
                }
            },
            {
                "name": "Z-axis translation",
                "value": -226.287,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8607
                }
            },
            {
                "name": "X-axis rotation",
                "value": 0,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8608
                }
            },
            {
                "name": "Y-axis rotation",
                "value": 0,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8609
                }
            },
            {
                "name": "Z-axis rotation",
                "value": 0.554,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8610
                }
            },
            {
                "name": "Scale difference",
                "value": 0.219,
                "unit": {
                    "type": "ScaleUnit",
                    "name": "parts per million",
                    "conversion_factor": 1e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8611
                }
            }
        ]
    }
}

Definition: GeoServer

4220=GEOGCS["Camacupa 1948",DATUM["Camacupa_1948",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],TOWGS84[-41.057,-374.564,-226.287,0,0,0.554,0.219]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4220"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"a=6378249.145"
	"rf=293.465"
	"towgs84=-41.057,-374.564,-226.287,0,0,0.554,0.219"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-41.057,-374.564,-226.287,0,0,0.554,0.219 +no_defs +type=crs">
	<Layer srs="+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-41.057,-374.564,-226.287,0,0,0.554,0.219 +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4220, 'EPSG', 4220, '+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-41.057,-374.564,-226.287,0,0,0.554,0.219 +no_defs +type=crs', 'GEOGCS["Camacupa 1948",DATUM["Camacupa_1948",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],TOWGS84[-41.057,-374.564,-226.287,0,0,0.554,0.219]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4220"]]');