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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: 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: 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');
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