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Method: Molodensky-Badekas (CF geog2D domain)
Remarks: Source also quotes an equivalent transformation using the Coordinate Frame 7-parameter method - see Bogota 1975 to MAGNA-SIRGAS (7), tfm code 15726.
Information source: Instituto Geografico Agustin Codazzi (IGAC) publication "Aspectos prácticos de la adopción del Marco Geocéntrico Nacional de Referencia MAGNA-SIRGAS como datum oficial de Colombia". http://www.igac.gov.co/MAGNAWEB/DocumentosMAGNA.htm
Revision date: 2007-07-02
Unit: metre
Geodetic CRS: Bogota 1975
Datum: Bogota 1975
Ellipsoid: International 1924
Prime meridian: Greenwich
Data source: EPSG
Information source: Instituto Geografico Agustin Codazzi (IGAC).
Revision date: 2018-06-12
Scope: Engineering survey, topographic mapping.
Remarks: Replaced by MAGNA-SIRGAS / Colombia East Central zone (CRS code 3117).
Area of use: Colombia - onshore between 1°30'E and 4°30'E of Bogota (approximately 72°35'W and 69°35'W of Greenwich).
Coordinate system: Cartesian 2D CS. Axes: northing, easting (X,Y). Orientations: north, east. UoM: m.
&stroke=red&width=2&path=-1.13,-79.1|3.01,-79.1|3.01,-74.0|-1.13,-74.0|-1.13,-79.1)
Center coordinates
389946.42 596178.63
Projected bounds:
103981.53 365569.27
674968.95 827897.7
WGS84 bounds:
-79.1 -1.13
-74.0 3.01
Definition: OGC Well Known Text
PROJCS["Bogota 1975 / Colombia East Central zone", GEOGCS["Bogota 1975", DATUM["Bogota_1975", SPHEROID["International 1924",6378388,297], TOWGS84[295.282,321.293,-311.001,-4.698084E-05,5.003127E-06,-9.578653E-05,6.325744]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4218"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",4.59904722222222], PARAMETER["central_meridian",-71.0809166666667], PARAMETER["scale_factor",1], PARAMETER["false_easting",1000000], PARAMETER["false_northing",1000000], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AUTHORITY["EPSG","21898"]]
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["Bogota 1975 / Colombia East Central zone", BASEGEOGCRS["Bogota 1975", DATUM["Bogota 1975", ELLIPSOID["International 1924",6378388,297, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4218]], CONVERSION["Colombia East Central zone", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",4.59904722222222, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-71.0809166666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",1000000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",1000000, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["northing (X)",north, ORDER[1], LENGTHUNIT["metre",1]], AXIS["easting (Y)",east, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Engineering survey, topographic mapping."], AREA["Colombia - onshore between 1°30'E and 4°30'E of Bogota (approximately 72°35'W and 69°35'W of Greenwich)."], BBOX[-4.23,-72.59,12.52,-69.58]], ID["EPSG",21898]]], 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",295.282, ID["EPSG",8605]], PARAMETER["Y-axis translation",321.293, ID["EPSG",8606]], PARAMETER["Z-axis translation",-311.001, ID["EPSG",8607]], PARAMETER["X-axis rotation",-4.698084E-05, ID["EPSG",8608]], PARAMETER["Y-axis rotation",5.003127E-06, ID["EPSG",8609]], PARAMETER["Z-axis rotation",-9.578653E-05, ID["EPSG",8610]], PARAMETER["Scale difference",1.000006325744, ID["EPSG",8611]]]]
Definition: ESRI Well Known Text
PROJCS["Colombia_East_Central_Zone", GEOGCS["GCS_Bogota", DATUM["D_Bogota", SPHEROID["International_1924",6378388.0,297.0]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Transverse_Mercator"], PARAMETER["False_Easting",1000000.0], PARAMETER["False_Northing",1000000.0], PARAMETER["Central_Meridian",-71.0809166666667], PARAMETER["Scale_Factor",1.0], PARAMETER["Latitude_Of_Origin",4.59904722222222], UNIT["Meter",1.0]]
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:21898","+proj=tmerc +lat_0=4.59904722222222 +lon_0=-71.0809166666667 +k=1 +x_0=1000000 +y_0=1000000 +ellps=intl +towgs84=295.282,321.293,-311.001,-4.698084e-05,5.003127e-06,-9.578653e-05,6.325744 +units=m +no_defs +type=crs");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "Bogota 1975 / Colombia East Central zone", "base_crs": { "name": "Bogota 1975", "datum": { "type": "GeodeticReferenceFrame", "name": "Bogota 1975", "ellipsoid": { "name": "International 1924", "semi_major_axis": 6378388, "inverse_flattening": 297 } }, "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": 4218 } }, "conversion": { "name": "Colombia East Central zone", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 4.59904722222222, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -71.0809166666667, "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": 1000000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 1000000, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Northing", "abbreviation": "X", "direction": "north", "unit": "metre" }, { "name": "Easting", "abbreviation": "Y", "direction": "east", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 21898 } }, "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": 295.282, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": 321.293, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": -311.001, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": -4.698084e-05, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": 5.003127e-06, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": -9.578653e-05, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": 6.325744, "unit": { "type": "ScaleUnit", "name": "parts per million", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8611 } } ] } }
Definition: GeoServer
21898=PROJCS["Bogota 1975 / Colombia East Central zone",GEOGCS["Bogota 1975",DATUM["Bogota_1975",SPHEROID["International 1924",6378388,297],TOWGS84[295.282,321.293,-311.001,-4.698084E-05,5.003127E-06,-9.578653E-05,6.325744]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4218"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",4.59904722222222],PARAMETER["central_meridian",-71.0809166666667],PARAMETER["scale_factor",1],PARAMETER["false_easting",1000000],PARAMETER["false_northing",1000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","21898"]]
Definition: MapServer - MAPfile
PROJECTION "proj=tmerc" "lat_0=4.59904722222222" "lon_0=-71.0809166666667" "k=1" "x_0=1000000" "y_0=1000000" "ellps=intl" "towgs84=295.282,321.293,-311.001,-4.698084e-05,5.003127e-06,-9.578653e-05,6.325744" "units=m" "no_defs" "type=crs" END
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=4.59904722222222 +lon_0=-71.0809166666667 +k=1 +x_0=1000000 +y_0=1000000 +ellps=intl +towgs84=295.282,321.293,-311.001,-4.698084e-05,5.003127e-06,-9.578653e-05,6.325744 +units=m +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=4.59904722222222 +lon_0=-71.0809166666667 +k=1 +x_0=1000000 +y_0=1000000 +ellps=intl +towgs84=295.282,321.293,-311.001,-4.698084e-05,5.003127e-06,-9.578653e-05,6.325744 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 21898, 'EPSG', 21898, '+proj=tmerc +lat_0=4.59904722222222 +lon_0=-71.0809166666667 +k=1 +x_0=1000000 +y_0=1000000 +ellps=intl +towgs84=295.282,321.293,-311.001,-4.698084e-05,5.003127e-06,-9.578653e-05,6.325744 +units=m +no_defs +type=crs', 'PROJCS["Bogota 1975 / Colombia East Central zone",GEOGCS["Bogota 1975",DATUM["Bogota_1975",SPHEROID["International 1924",6378388,297],TOWGS84[295.282,321.293,-311.001,-4.698084E-05,5.003127E-06,-9.578653E-05,6.325744]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4218"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",4.59904722222222],PARAMETER["central_meridian",-71.0809166666667],PARAMETER["scale_factor",1],PARAMETER["false_easting",1000000],PARAMETER["false_northing",1000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","21898"]]');
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