Method: Molodensky-Badekas (CF geog2D domain)
Remarks: Parameter values taken from Katanga 1955 to RGRDC 2005 (2) (code 4067) assuming that RGRDC 2005 is equivalent to WGS 84 within the accuracy of the transformation.
Information source: SD Geomatique.
Revision date: 2020-03-14
Unit: metre
Geodetic CRS: Katanga 1955
Datum: Katanga 1955
Ellipsoid: Clarke 1866
Prime meridian: Greenwich
Data source: EPSG
Information source: J. van der Straeten, "Triangulation du Katanga", Comite Special du Katanga (CSK), 1955.
Revision date: 2009-03-11
Scope: Cadastre, engineering survey.
Area of use: The Democratic Republic of the Congo (Zaire) - Katanga between 26°30'E and 29°30'E.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.
Center coordinates
98183.65 215817.44
Projected bounds:
23179.93 166791.28
172946.32 264645.37
WGS84 bounds:
26.38 -12.01
27.75 -11.13
Definition: OGC Well Known Text
PROJCS["Katanga 1955 / Katanga Gauss zone B", GEOGCS["Katanga 1955", DATUM["Katanga_1955", SPHEROID["Clarke 1866",6378206.4,294.978698213898], TOWGS84[-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4695"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",-9], PARAMETER["central_meridian",28], PARAMETER["scale_factor",1], PARAMETER["false_easting",200000], PARAMETER["false_northing",500000], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","3987"]]
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["Katanga 1955 / Katanga Gauss zone B", BASEGEOGCRS["Katanga 1955", DATUM["Katanga 1955", ELLIPSOID["Clarke 1866",6378206.4,294.978698213898, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4695]], CONVERSION["Katanga Gauss zone B", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",-9, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",28, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",200000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",500000, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["easting (X)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["northing (Y)",north, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Cadastre, engineering survey."], AREA["The Democratic Republic of the Congo (Zaire) - Katanga between 26°30'E and 29°30'E."], BBOX[-13.44,26.5,-4.99,29.5]], ID["EPSG",3987]]], 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",-102.283, ID["EPSG",8605]], PARAMETER["Y-axis translation",-10.277, ID["EPSG",8606]], PARAMETER["Z-axis translation",-257.396, ID["EPSG",8607]], PARAMETER["X-axis rotation",-3.976, ID["EPSG",8608]], PARAMETER["Y-axis rotation",-0.002, ID["EPSG",8609]], PARAMETER["Z-axis rotation",-6.203, ID["EPSG",8610]], PARAMETER["Scale difference",1.000012315, ID["EPSG",8611]]]]
Definition: ESRI Well Known Text
PROJCS["Katanga_1955_Katanga_Gauss_Zone_B", GEOGCS["GCS_Katanga_1955", DATUM["D_Katanga_1955", SPHEROID["Clarke_1866",6378206.4,294.978698213898]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Gauss_Kruger"], PARAMETER["False_Easting",200000.0], PARAMETER["False_Northing",500000.0], PARAMETER["Central_Meridian",28.0], PARAMETER["Scale_Factor",1.0], PARAMETER["Latitude_Of_Origin",-9.0], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "Katanga 1955 / Katanga Gauss zone B", "base_crs": { "name": "Katanga 1955", "datum": { "type": "GeodeticReferenceFrame", "name": "Katanga 1955", "ellipsoid": { "name": "Clarke 1866", "semi_major_axis": 6378206.4, "semi_minor_axis": 6356583.8 } }, "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": 4695 } }, "conversion": { "name": "Katanga Gauss zone B", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": -9, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 28, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 1, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 200000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 500000, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 3987 } }, "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": -102.283, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": -10.277, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": -257.396, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": -3.976, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": -0.002, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": -6.203, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": 12.315, "unit": { "type": "ScaleUnit", "name": "parts per million", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8611 } } ] } }
Definition: GeoServer
3987=PROJCS["Katanga 1955 / Katanga Gauss zone B",GEOGCS["Katanga 1955",DATUM["Katanga_1955",SPHEROID["Clarke 1866",6378206.4,294.978698213898],TOWGS84[-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4695"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",-9],PARAMETER["central_meridian",28],PARAMETER["scale_factor",1],PARAMETER["false_easting",200000],PARAMETER["false_northing",500000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3987"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=-9 +lon_0=28 +k=1 +x_0=200000 +y_0=500000 +ellps=clrk66 +towgs84=-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315 +units=m +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=-9 +lon_0=28 +k=1 +x_0=200000 +y_0=500000 +ellps=clrk66 +towgs84=-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 3987, 'EPSG', 3987, '+proj=tmerc +lat_0=-9 +lon_0=28 +k=1 +x_0=200000 +y_0=500000 +ellps=clrk66 +towgs84=-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315 +units=m +no_defs +type=crs', 'PROJCS["Katanga 1955 / Katanga Gauss zone B",GEOGCS["Katanga 1955",DATUM["Katanga_1955",SPHEROID["Clarke 1866",6378206.4,294.978698213898],TOWGS84[-102.283,-10.277,-257.396,-3.976,-0.002,-6.203,12.315]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4695"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",-9],PARAMETER["central_meridian",28],PARAMETER["scale_factor",1],PARAMETER["false_easting",200000],PARAMETER["false_northing",500000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3987"]]');