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Method: Coordinate Frame rotation (geog2D domain)
Remarks: Parameter values are taken from GCGD59 to CIGD11 (1) (code 6136) assuming that CIGD11 and WGS 84 can be considered the same to within the accuracy of the transformation.
Information source: OGP
Revision date: 2021-09-23
Unit: foot
Geodetic CRS: GCGD59
Datum: Grand Cayman Geodetic Datum 1959
Ellipsoid: Clarke 1866
Prime meridian: Greenwich
Data source: EPSG
Information source: Lands and Surveys Department, Cayman Islands Government.
Revision date: 2012-12-12
Scope: Cadastre, engineering survey, topographic mapping.
Area of use: Cayman Islands - Grand Cayman.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: ft.
&stroke=red&width=2&path=19.21,-81.46|19.41,-81.46|19.41,-81.04|19.21,-81.04|19.21,-81.46)
Center coordinates
1555757.96 7005934.24
Projected bounds:
1483279.35 6969568.07
1628147.92 7042389.43
WGS84 bounds:
-81.46 19.21
-81.04 19.41
Definition: OGC Well Known Text
PROJCS["Grand Cayman National Grid 1959", GEOGCS["GCGD59", DATUM["Grand_Cayman_Geodetic_Datum_1959", SPHEROID["Clarke 1866",6378206.4,294.978698213898], TOWGS84[-179.483,-69.379,-27.584,7.862,-8.163,-6.042,-13.925]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4723"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",0], PARAMETER["central_meridian",-81], PARAMETER["scale_factor",0.9996], PARAMETER["false_easting",1640419.9475], PARAMETER["false_northing",0], UNIT["foot",0.3048], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","6128"]]
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["Grand Cayman National Grid 1959", BASEGEOGCRS["GCGD59", DATUM["Grand Cayman Geodetic Datum 1959", ELLIPSOID["Clarke 1866",6378206.4,294.978698213898, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4723]], CONVERSION["Cayman Islands TM (ft)", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-81, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.9996, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",1640419.9475, LENGTHUNIT["foot",0.3048], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["foot",0.3048], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["foot",0.3048]], AXIS["(N)",north, ORDER[2], LENGTHUNIT["foot",0.3048]], USAGE[ SCOPE["Cadastre, engineering survey, topographic mapping."], AREA["Cayman Islands - Grand Cayman."], BBOX[19.21,-81.46,19.41,-81.04]], ID["EPSG",6128]]], 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",-179.483, ID["EPSG",8605]], PARAMETER["Y-axis translation",-69.379, ID["EPSG",8606]], PARAMETER["Z-axis translation",-27.584, ID["EPSG",8607]], PARAMETER["X-axis rotation",7.862, ID["EPSG",8608]], PARAMETER["Y-axis rotation",-8.163, ID["EPSG",8609]], PARAMETER["Z-axis rotation",-6.042, ID["EPSG",8610]], PARAMETER["Scale difference",0.999986075, ID["EPSG",8611]]]]
Definition: ESRI Well Known Text
PROJCS["Grand_Cayman_National_Grid_1959", GEOGCS["GCS_Grand_Cayman_1959", DATUM["D_Grand_Cayman_1959", SPHEROID["Clarke_1866",6378206.4,294.978698213898]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Transverse_Mercator"], PARAMETER["False_Easting",1640419.9475], PARAMETER["False_Northing",0.0], PARAMETER["Central_Meridian",-81.0], PARAMETER["Scale_Factor",0.9996], PARAMETER["Latitude_Of_Origin",0.0], UNIT["foot",0.3048]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "Grand Cayman National Grid 1959", "base_crs": { "name": "GCGD59", "datum": { "type": "GeodeticReferenceFrame", "name": "Grand Cayman Geodetic Datum 1959", "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": 4723 } }, "conversion": { "name": "Cayman Islands TM (ft)", "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": -81, "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": 1640419.9475, "unit": { "type": "LinearUnit", "name": "foot", "conversion_factor": 0.3048 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "foot", "conversion_factor": 0.3048 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "E", "direction": "east", "unit": { "type": "LinearUnit", "name": "foot", "conversion_factor": 0.3048 } }, { "name": "Northing", "abbreviation": "N", "direction": "north", "unit": { "type": "LinearUnit", "name": "foot", "conversion_factor": 0.3048 } } ] }, "id": { "authority": "EPSG", "code": 6128 } }, "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": -179.483, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": -69.379, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": -27.584, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": 7.862, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": -8.163, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": -6.042, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": -13.925, "unit": { "type": "ScaleUnit", "name": "parts per million", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8611 } } ] } }
Definition: GeoServer
6128=PROJCS["Grand Cayman National Grid 1959",GEOGCS["GCGD59",DATUM["Grand_Cayman_Geodetic_Datum_1959",SPHEROID["Clarke 1866",6378206.4,294.978698213898],TOWGS84[-179.483,-69.379,-27.584,7.862,-8.163,-6.042,-13.925]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4723"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-81],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",1640419.9475],PARAMETER["false_northing",0],UNIT["foot",0.3048],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6128"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=0 +lon_0=-81 +k=0.9996 +x_0=499999.999998 +y_0=0 +ellps=clrk66 +towgs84=-179.483,-69.379,-27.584,7.862,-8.163,-6.042,-13.925 +units=ft +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=0 +lon_0=-81 +k=0.9996 +x_0=499999.999998 +y_0=0 +ellps=clrk66 +towgs84=-179.483,-69.379,-27.584,7.862,-8.163,-6.042,-13.925 +units=ft +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 6128, 'EPSG', 6128, '+proj=tmerc +lat_0=0 +lon_0=-81 +k=0.9996 +x_0=499999.999998 +y_0=0 +ellps=clrk66 +towgs84=-179.483,-69.379,-27.584,7.862,-8.163,-6.042,-13.925 +units=ft +no_defs +type=crs', 'PROJCS["Grand Cayman National Grid 1959",GEOGCS["GCGD59",DATUM["Grand_Cayman_Geodetic_Datum_1959",SPHEROID["Clarke 1866",6378206.4,294.978698213898],TOWGS84[-179.483,-69.379,-27.584,7.862,-8.163,-6.042,-13.925]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4723"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-81],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",1640419.9475],PARAMETER["false_northing",0],UNIT["foot",0.3048],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6128"]]');
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