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Method: Geocentric translations (geog2D domain)
Remarks: Derived at 3 stations. Accuracy 20m in each axis. Beware! Source CRS uses German legal metres, transformation parameter values are in (International) metres. See tfm code 1271 for example.
Information source: U.S. Defense Mapping Agency TR8350.2 September 1987.
Revision date: 2023-11-19
Unit: German legal metre
Geodetic CRS: Schwarzeck
Datum: Schwarzeck
Ellipsoid: Bessel Namibia (GLM)
Prime meridian: Greenwich
Data source: EPSG
Revision date: 2007-02-12
Scope: Cadastre, engineering survey, topographic mapping (large and medium scale).
Area of use: Namibia - onshore between 16°E and 18°E.
Coordinate system: Cartesian 2D CS. Axes: westing, southing (Y,X). Orientations: west, south. UoM: GLM.
&stroke=red&width=2&path=-30.64,8.24|-16.95,8.24|-16.95,25.27|-30.64,25.27|-30.64,8.24)
Center coordinates
24880.98 198755.3
Projected bounds:
-883513.9 -559051.95
936015.36 990144.15
WGS84 bounds:
8.24 -30.64
25.27 -16.95
Definition: OGC Well Known Text
PROJCS["Schwarzeck / Lo22/17", GEOGCS["Schwarzeck", DATUM["Schwarzeck", SPHEROID["Bessel Namibia (GLM)",6377483.86528042,299.1528128], TOWGS84[616,97,-251,0,0,0,0]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4293"]], PROJECTION["Transverse_Mercator_South_Orientated"], PARAMETER["latitude_of_origin",-22], PARAMETER["central_meridian",17], PARAMETER["scale_factor",1], PARAMETER["false_easting",0], PARAMETER["false_northing",0], UNIT["German legal metre",1.0000135965], AUTHORITY["EPSG","29377"]]
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["Schwarzeck / Lo22/17", BASEGEOGCRS["Schwarzeck", DATUM["Schwarzeck", ELLIPSOID["Bessel Namibia (GLM)",6377397.155,299.1528128, LENGTHUNIT["German legal metre",1.0000135965]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4293]], CONVERSION["South West African Survey Grid zone 17", METHOD["Transverse Mercator (South Orientated)", ID["EPSG",9808]], PARAMETER["Latitude of natural origin",-22, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",17, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",0, LENGTHUNIT["German legal metre",1.0000135965], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["German legal metre",1.0000135965], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["westing (Y)",west, ORDER[1], LENGTHUNIT["German legal metre",1.0000135965]], AXIS["southing (X)",south, ORDER[2], LENGTHUNIT["German legal metre",1.0000135965]], USAGE[ SCOPE["Cadastre, engineering survey, topographic mapping (large and medium scale)."], AREA["Namibia - onshore between 16°E and 18°E."], BBOX[-28.83,15.99,-17.38,18.01]], ID["EPSG",29377]]], 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",616, ID["EPSG",8605]], PARAMETER["Y-axis translation",97, ID["EPSG",8606]], PARAMETER["Z-axis translation",-251, ID["EPSG",8607]], PARAMETER["X-axis rotation",0, ID["EPSG",8608]], PARAMETER["Y-axis rotation",0, ID["EPSG",8609]], PARAMETER["Z-axis rotation",0, ID["EPSG",8610]], PARAMETER["Scale difference",1, ID["EPSG",8611]]]]
Definition: ESRI Well Known Text
PROJCS["Schwarzeck_Lo22_17", GEOGCS["GCS_Schwarzeck", DATUM["D_Schwarzeck", SPHEROID["Bessel_Namibia_GLM",6377483.86528042,299.1528128]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Transverse_Mercator_South_Orientated"], PARAMETER["latitude_of_origin",-22.0], PARAMETER["central_meridian",17.0], PARAMETER["scale_factor",1.0], PARAMETER["false_easting",0.0], PARAMETER["false_northing",0.0], UNIT["German legal metre",1.0000135965]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "Schwarzeck / Lo22/17", "base_crs": { "name": "Schwarzeck", "datum": { "type": "GeodeticReferenceFrame", "name": "Schwarzeck", "ellipsoid": { "name": "Bessel Namibia (GLM)", "semi_major_axis": { "value": 6377397.155, "unit": { "type": "LinearUnit", "name": "German legal metre", "conversion_factor": 1.0000135965 } }, "inverse_flattening": 299.1528128 } }, "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": 4293 } }, "conversion": { "name": "South West African Survey Grid zone 17", "method": { "name": "Transverse Mercator (South Orientated)", "id": { "authority": "EPSG", "code": 9808 } }, "parameters": [ { "name": "Latitude of natural origin", "value": -22, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 17, "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": 0, "unit": { "type": "LinearUnit", "name": "German legal metre", "conversion_factor": 1.0000135965 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "German legal metre", "conversion_factor": 1.0000135965 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Westing", "abbreviation": "Y", "direction": "west", "unit": { "type": "LinearUnit", "name": "German legal metre", "conversion_factor": 1.0000135965 } }, { "name": "Southing", "abbreviation": "X", "direction": "south", "unit": { "type": "LinearUnit", "name": "German legal metre", "conversion_factor": 1.0000135965 } } ] }, "id": { "authority": "EPSG", "code": 29377 } }, "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": 616, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": 97, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": -251, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": 0, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": 0, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": 0, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": 0, "unit": { "type": "ScaleUnit", "name": "parts per million", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8611 } } ] } }
Definition: GeoServer
29377=PROJCS["Schwarzeck / Lo22/17",GEOGCS["Schwarzeck",DATUM["Schwarzeck",SPHEROID["Bessel Namibia (GLM)",6377483.86528042,299.1528128],TOWGS84[616,97,-251,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4293"]],PROJECTION["Transverse_Mercator_South_Orientated"],PARAMETER["latitude_of_origin",-22],PARAMETER["central_meridian",17],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["German legal metre",1.0000135965],AUTHORITY["EPSG","29377"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +axis=wsu +lat_0=-22 +lon_0=17 +k=1 +x_0=0 +y_0=0 +ellps=bess_nam +towgs84=616,97,-251,0,0,0,0 +to_meter=1.0000135965 +no_defs +type=crs"> <Layer srs="+proj=tmerc +axis=wsu +lat_0=-22 +lon_0=17 +k=1 +x_0=0 +y_0=0 +ellps=bess_nam +towgs84=616,97,-251,0,0,0,0 +to_meter=1.0000135965 +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 29377, 'EPSG', 29377, '+proj=tmerc +axis=wsu +lat_0=-22 +lon_0=17 +k=1 +x_0=0 +y_0=0 +ellps=bess_nam +towgs84=616,97,-251,0,0,0,0 +to_meter=1.0000135965 +no_defs +type=crs', 'PROJCS["Schwarzeck / Lo22/17",GEOGCS["Schwarzeck",DATUM["Schwarzeck",SPHEROID["Bessel Namibia (GLM)",6377483.86528042,299.1528128],TOWGS84[616,97,-251,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4293"]],PROJECTION["Transverse_Mercator_South_Orientated"],PARAMETER["latitude_of_origin",-22],PARAMETER["central_meridian",17],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["German legal metre",1.0000135965],AUTHORITY["EPSG","29377"]]');
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