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Geodetic CRS: Christmas Island Grid 1985
Datum: Christmas Island Datum 1985
Data source: EPSG
Information source: Landgate (Government of Western Australia), Christmas Island Geographic Information System documentation, www.ga.gov.au/christmas.
Revision date: 2014-02-15
Scope: Topographic mapping.
Remarks: Accuracy estimated as sub-metre in northeast of island and variable up to 8m in west and south.
Method: Cartesian Grid Offsets
Area of use: Christmas Island - onshore.
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["CIG85 to GDA94 / MGA zone 48", VERSION["GA-Cxr"], SOURCECRS[ ENGCRS["Christmas Island Grid 1985", EDATUM["Christmas Island Datum 1985"], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(N)",north, ORDER[2], LENGTHUNIT["metre",1]], ID["EPSG",6715]]], TARGETCRS[ PROJCRS["GDA94 / MGA zone 48", BASEGEOGCRS["GDA94", DATUM["Geocentric Datum of Australia 1994", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4283]], CONVERSION["Map Grid of Australia zone 48", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",105, 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",10000000, 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",28348]]], METHOD["Cartesian Grid Offsets", ID["EPSG",9656]], PARAMETER["Easting offset",550015, LENGTHUNIT["metre",1], ID["EPSG",8728]], PARAMETER["Northing offset",8780001, LENGTHUNIT["metre",1], ID["EPSG",8729]], OPERATIONACCURACY[5.0], USAGE[ SCOPE["Topographic mapping."], AREA["Christmas Island - onshore."], BBOX[-10.63,105.48,-10.36,105.77]], ID["EPSG",6724], REMARK["Accuracy estimated as sub-metre in northeast of island and variable up to 8m in west and south."]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "CIG85 to GDA94 / MGA zone 48", "source_crs": { "type": "EngineeringCRS", "name": "Christmas Island Grid 1985", "datum": { "name": "Christmas Island Datum 1985" }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "E", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "N", "direction": "north", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 6715 } }, "target_crs": { "type": "ProjectedCRS", "name": "GDA94 / MGA zone 48", "base_crs": { "type": "GeographicCRS", "name": "GDA94", "datum": { "type": "GeodeticReferenceFrame", "name": "Geocentric Datum of Australia 1994", "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "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": 4283 } }, "conversion": { "name": "Map Grid of Australia zone 48", "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": 105, "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": 500000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 10000000, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "E", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "N", "direction": "north", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 28348 } }, "method": { "name": "Cartesian Grid Offsets", "id": { "authority": "EPSG", "code": 9656 } }, "parameters": [ { "name": "Easting offset", "value": 550015, "unit": "metre", "id": { "authority": "EPSG", "code": 8728 } }, { "name": "Northing offset", "value": 8780001, "unit": "metre", "id": { "authority": "EPSG", "code": 8729 } } ], "accuracy": "5.0", "scope": "Topographic mapping.", "area": "Christmas Island - onshore.", "bbox": { "south_latitude": -10.63, "west_longitude": 105.48, "north_latitude": -10.36, "east_longitude": 105.77 }, "id": { "authority": "EPSG", "code": 6724 }, "remarks": "Accuracy estimated as sub-metre in northeast of island and variable up to 8m in west and south." }
Definition: Mapnik
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