EPSG:1823

Minna to WGS 84 (9)

Attributes

Geodetic CRS: Minna

Datum: Minna

Ellipsoid: Clarke 1880 (RGS)

Prime meridian: Greenwich

Data source: EPSG

Information source: Shell Nigeria Exploration and Production Company

Revision date: 2020-03-14

Scope: Oil and gas exploration and production.

Remarks: Used by Shell SNEPCO for OPLs 217-223. Derived during 1990 Niger Delta control survey at 4 stations (XSU38, 41, 44 and 45).

Method: Geocentric translations (geog2D domain)

Area of use: Nigeria - offshore blocks OPL 217-223.

Description: (-93.134, -86.647, 114.196, 0.0, 0.0, 0.0, 0.0)

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Definition: PROJ.4

+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=longlat +a=6378249.145 +rf=293.465 +step +proj=push +v_3 +step +proj=cart +a=6378249.145 +rf=293.465 +step +proj=helmert +x=-93.134 +y=-86.647 +z=114.196 +step +inv +proj=cart +ellps=WGS84 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:1823","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=longlat +a=6378249.145 +rf=293.465 +step +proj=push +v_3 +step +proj=cart +a=6378249.145 +rf=293.465 +step +proj=helmert +x=-93.134 +y=-86.647 +z=114.196 +step +inv +proj=cart +ellps=WGS84 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json",
    "type": "Transformation",
    "name": "Minna to WGS 84 (9)",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "Minna",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Minna",
            "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": 4263
        }
    },
    "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
        }
    },
    "method": {
        "name": "Geocentric translations (geog2D domain)",
        "id": {
            "authority": "EPSG",
            "code": 9603
        }
    },
    "parameters": [
        {
            "name": "X-axis translation",
            "value": -93.134,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8605
            }
        },
        {
            "name": "Y-axis translation",
            "value": -86.647,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8606
            }
        },
        {
            "name": "Z-axis translation",
            "value": 114.196,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8607
            }
        }
    ],
    "accuracy": "8.0",
    "scope": "Oil and gas exploration and production.",
    "area": "Nigeria - offshore blocks OPL 217-223.",
    "bbox": {
        "south_latitude": 3.24,
        "west_longitude": 5.58,
        "north_latitude": 3.86,
        "east_longitude": 8
    },
    "id": {
        "authority": "EPSG",
        "code": 1823
    },
    "remarks": "Used by Shell SNEPCO for OPLs 217-223. Derived during 1990 Niger Delta control survey at 4 stations (XSU38, 41, 44 and 45)."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=pipeline"
	"step"
	"proj=axisswap"
	"order=2,1"
	"step"
	"proj=unitconvert"
	"xy_in=deg"
	"xy_out=rad"
	"step"
	"inv"
	"proj=longlat"
	"a=6378249.145"
	"rf=293.465"
	"step"
	"proj=push"
	"v_3"
	"step"
	"proj=cart"
	"a=6378249.145"
	"rf=293.465"
	"step"
	"proj=helmert"
	"x=-93.134"
	"y=-86.647"
	"z=114.196"
	"step"
	"inv"
	"proj=cart"
	"ellps=WGS84"
	"step"
	"proj=pop"
	"v_3"
	"step"
	"proj=unitconvert"
	"xy_in=rad"
	"xy_out=deg"
	"step"
	"proj=axisswap"
	"order=2,1"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=longlat +a=6378249.145 +rf=293.465 +step +proj=push +v_3 +step +proj=cart +a=6378249.145 +rf=293.465 +step +proj=helmert +x=-93.134 +y=-86.647 +z=114.196 +step +inv +proj=cart +ellps=WGS84 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1">
	<Layer srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=longlat +a=6378249.145 +rf=293.465 +step +proj=push +v_3 +step +proj=cart +a=6378249.145 +rf=293.465 +step +proj=helmert +x=-93.134 +y=-86.647 +z=114.196 +step +inv +proj=cart +ellps=WGS84 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 1823, 'EPSG', 1823, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=longlat +a=6378249.145 +rf=293.465 +step +proj=push +v_3 +step +proj=cart +a=6378249.145 +rf=293.465 +step +proj=helmert +x=-93.134 +y=-86.647 +z=114.196 +step +inv +proj=cart +ellps=WGS84 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');

Definition: OGC WKT 2 (2019)

COORDINATEOPERATION["Minna to WGS 84 (9)",VERSION["SHL-Nga OPL S"],SOURCECRS[GEOGCRS["Minna",DATUM["Minna",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",4263]]],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]],ID["EPSG",4326]]],METHOD["Geocentric translations (geog2D domain)",ID["EPSG",9603]],PARAMETER["X-axis translation",-93.134,LENGTHUNIT["metre",1],ID["EPSG",8605]],PARAMETER["Y-axis translation",-86.647,LENGTHUNIT["metre",1],ID["EPSG",8606]],PARAMETER["Z-axis translation",114.196,LENGTHUNIT["metre",1],ID["EPSG",8607]],OPERATIONACCURACY[8.0],USAGE[SCOPE["Oil and gas exploration and production."],AREA["Nigeria - offshore blocks OPL 217-223."],BBOX[3.24,5.58,3.86,8]],ID["EPSG",1823],REMARK["Used by Shell SNEPCO for OPLs 217-223. Derived during 1990 Niger Delta control survey at 4 stations (XSU38, 41, 44 and 45)."]]