EPSG:15861

IGN Astro 1960 / UTM zone 28N to WGS 84 / UTM zone 28N (1)

Attributes

Geodetic CRS: IGN Astro 1960

Datum: IGN Astro 1960

Ellipsoid: Clarke 1880 (RGS)

Prime meridian: Greenwich

Data source: EPSG

Information source: OGP

Revision date: 2021-09-23

Scope: (null/copy) Approximation for medium and low accuracy applications assuming equality between plate-fixed static and earth-fixed dynamic CRSs, ignoring static/dynamic CRS differences.

Remarks: Transformation taken from IGN Astro 1960 / UTM zone 28N to Mauritania 1999 / UTM zone 28N (1) (tfm code 15857) assuming that Mauritania 1999 is equivalent to WGS 84 within the accuracy of this tfm.

Method: Affine parametric transformation

Area of use: Mauritania - onshore west of 12°W.

Description: (0,)

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Definition: OGC Well Known Text 2 (2019)

COORDINATEOPERATION["IGN Astro 1960 / UTM zone 28N to WGS 84 / UTM zone 28N (1)",
    VERSION["OGP-Mau W"],
    SOURCECRS[
        PROJCRS["IGN Astro 1960 / UTM zone 28N",
            BASEGEOGCRS["IGN Astro 1960",
                DATUM["IGN Astro 1960",
                    ELLIPSOID["Clarke 1880 (RGS)",6378249.145,293.465,
                        LENGTHUNIT["metre",1]]],
                PRIMEM["Greenwich",0,
                    ANGLEUNIT["degree",0.0174532925199433]],
                ID["EPSG",4700]],
            CONVERSION["UTM zone 28N",
                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",3367]]],
    TARGETCRS[
        PROJCRS["WGS 84 / UTM zone 28N",
            BASEGEOGCRS["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]],
                ID["EPSG",4326]],
            CONVERSION["UTM zone 28N",
                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",32628]]],
    METHOD["Affine parametric transformation",
        ID["EPSG",9624]],
    PARAMETER["A0",-532.876,
        LENGTHUNIT["metre",1],
        ID["EPSG",8623]],
    PARAMETER["A1",1.000172166584,
        SCALEUNIT["coefficient",1],
        ID["EPSG",8624]],
    PARAMETER["A2",9.029305555E-05,
        SCALEUNIT["coefficient",1],
        ID["EPSG",8625]],
    PARAMETER["B0",-34.015,
        LENGTHUNIT["metre",1],
        ID["EPSG",8639]],
    PARAMETER["B1",-9.029305555E-05,
        SCALEUNIT["coefficient",1],
        ID["EPSG",8640]],
    PARAMETER["B2",1.000172166584,
        SCALEUNIT["coefficient",1],
        ID["EPSG",8641]],
    OPERATIONACCURACY[40.0],
    USAGE[
        SCOPE["(null/copy) Approximation for medium and low accuracy applications assuming equality between plate-fixed static and earth-fixed dynamic CRSs, ignoring static/dynamic CRS differences."],
        AREA["Mauritania - onshore west of 12°W."],
        BBOX[14.72,-17.08,23.46,-12]],
    ID["EPSG",15861],
    REMARK["Transformation taken from IGN Astro 1960 / UTM zone 28N to Mauritania 1999 / UTM zone 28N (1) (tfm code 15857) assuming that Mauritania 1999 is equivalent to WGS 84 within the accuracy of this tfm."]]

Definition: PROJ.4

+proj=affine +xoff=-532.876 +s11=1.000172166584 +s12=9.029305555e-05 +yoff=-34.015 +s21=-9.029305555e-05 +s22=1.000172166584

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:15861","+proj=affine +xoff=-532.876 +s11=1.000172166584 +s12=9.029305555e-05 +yoff=-34.015 +s21=-9.029305555e-05 +s22=1.000172166584");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Transformation",
    "name": "IGN Astro 1960 / UTM zone 28N to WGS 84 / UTM zone 28N (1)",
    "source_crs": {
        "type": "ProjectedCRS",
        "name": "IGN Astro 1960 / UTM zone 28N",
        "base_crs": {
            "name": "IGN Astro 1960",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "IGN Astro 1960",
                "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": 4700
            }
        },
        "conversion": {
            "name": "UTM zone 28N",
            "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": 3367
        }
    },
    "target_crs": {
        "type": "ProjectedCRS",
        "name": "WGS 84 / UTM zone 28N",
        "base_crs": {
            "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
            }
        },
        "conversion": {
            "name": "UTM zone 28N",
            "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": 32628
        }
    },
    "method": {
        "name": "Affine parametric transformation",
        "id": {
            "authority": "EPSG",
            "code": 9624
        }
    },
    "parameters": [
        {
            "name": "A0",
            "value": -532.876,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8623
            }
        },
        {
            "name": "A1",
            "value": 1.000172166584,
            "unit": {
                "type": "ScaleUnit",
                "name": "coefficient",
                "conversion_factor": 1
            },
            "id": {
                "authority": "EPSG",
                "code": 8624
            }
        },
        {
            "name": "A2",
            "value": 9.029305555e-05,
            "unit": {
                "type": "ScaleUnit",
                "name": "coefficient",
                "conversion_factor": 1
            },
            "id": {
                "authority": "EPSG",
                "code": 8625
            }
        },
        {
            "name": "B0",
            "value": -34.015,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8639
            }
        },
        {
            "name": "B1",
            "value": -9.029305555e-05,
            "unit": {
                "type": "ScaleUnit",
                "name": "coefficient",
                "conversion_factor": 1
            },
            "id": {
                "authority": "EPSG",
                "code": 8640
            }
        },
        {
            "name": "B2",
            "value": 1.000172166584,
            "unit": {
                "type": "ScaleUnit",
                "name": "coefficient",
                "conversion_factor": 1
            },
            "id": {
                "authority": "EPSG",
                "code": 8641
            }
        }
    ],
    "accuracy": "40.0",
    "scope": "(null/copy) Approximation for medium and low accuracy applications assuming equality between plate-fixed static and earth-fixed dynamic CRSs, ignoring static/dynamic CRS differences.",
    "area": "Mauritania - onshore west of 12°W.",
    "bbox": {
        "south_latitude": 14.72,
        "west_longitude": -17.08,
        "north_latitude": 23.46,
        "east_longitude": -12
    },
    "id": {
        "authority": "EPSG",
        "code": 15861
    },
    "remarks": "Transformation taken from IGN Astro 1960 / UTM zone 28N to Mauritania 1999 / UTM zone 28N (1) (tfm code 15857) assuming that Mauritania 1999 is equivalent to WGS 84 within the accuracy of this tfm."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=affine"
	"xoff=-532.876"
	"s11=1.000172166584"
	"s12=9.029305555e-05"
	"yoff=-34.015"
	"s21=-9.029305555e-05"
	"s22=1.000172166584"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=affine +xoff=-532.876 +s11=1.000172166584 +s12=9.029305555e-05 +yoff=-34.015 +s21=-9.029305555e-05 +s22=1.000172166584">
	<Layer srs="+proj=affine +xoff=-532.876 +s11=1.000172166584 +s12=9.029305555e-05 +yoff=-34.015 +s21=-9.029305555e-05 +s22=1.000172166584">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 15861, 'EPSG', 15861, '+proj=affine +xoff=-532.876 +s11=1.000172166584 +s12=9.029305555e-05 +yoff=-34.015 +s21=-9.029305555e-05 +s22=1.000172166584', 'None');