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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: "Resultats des calculs de la campagne geodesique realisee dans le cadre du projet du cadastre minier", Direction de la Topographie et de la Cartographie, July 1999.
Revision date: 2006-03-16
Scope: Minerals management (including oil and gas exploration and production).
Remarks: Parameter values consistent with the OGP Affine parametric transformation method derived by OGP from the published Helmert 2D parameter values. May be used for transformations to WGS 84 - see tfm code 15862.
Method: Affine parametric transformation
Area of use: Mauritania - between 12°W and 6°W.
Description: (0,)
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Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["IGN Astro 1960 / UTM zone 29N to Mauritania 1999 / UTM zone 29N (1)", VERSION["MMI-Mau C"], SOURCECRS[ PROJCRS["IGN Astro 1960 / UTM zone 29N", 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 29N", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-9, 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",3368]]], TARGETCRS[ PROJCRS["Mauritania 1999 / UTM zone 29N", BASEGEOGCRS["Mauritania 1999", DATUM["Mauritania 1999", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4702]], CONVERSION["UTM zone 29N", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-9, 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",3344]]], METHOD["Affine parametric transformation", ID["EPSG",9624]], PARAMETER["A0",-409.264, LENGTHUNIT["metre",1], ID["EPSG",8623]], PARAMETER["A1",1.00017432259949, SCALEUNIT["coefficient",1], ID["EPSG",8624]], PARAMETER["A2",9.14562824E-05, SCALEUNIT["coefficient",1], ID["EPSG",8625]], PARAMETER["B0",-88.803, LENGTHUNIT["metre",1], ID["EPSG",8639]], PARAMETER["B1",-9.14562824E-05, SCALEUNIT["coefficient",1], ID["EPSG",8640]], PARAMETER["B2",1.00017432259949, SCALEUNIT["coefficient",1], ID["EPSG",8641]], OPERATIONACCURACY[40.0], USAGE[ SCOPE["Minerals management (including oil and gas exploration and production)."], AREA["Mauritania - between 12°W and 6°W."], BBOX[14.75,-12,27.3,-6]], ID["EPSG",15858], REMARK["Parameter values consistent with the OGP Affine parametric transformation method derived by OGP from the published Helmert 2D parameter values. May be used for transformations to WGS 84 - see tfm code 15862."]]
Definition: JSON
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Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=affine +xoff=-409.264 +s11=1.00017432259949 +s12=9.14562824e-05 +yoff=-88.803 +s21=-9.14562824e-05 +s22=1.00017432259949"> <Layer srs="+proj=affine +xoff=-409.264 +s11=1.00017432259949 +s12=9.14562824e-05 +yoff=-88.803 +s21=-9.14562824e-05 +s22=1.00017432259949"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 15858, 'EPSG', 15858, '+proj=affine +xoff=-409.264 +s11=1.00017432259949 +s12=9.14562824e-05 +yoff=-88.803 +s21=-9.14562824e-05 +s22=1.00017432259949', 'None');
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