EPSG:6723

GDA94 / CKIG94

Available transformations
to EPSG:4326

Selected transformation

Method: Coordinate Frame rotation (geog2D domain)

Remarks: Concatenation of CTs 8048 and 8450 through GDA2020. Scale difference in ppb where 1/billion = 1E-9. See GDA94 to WGS 84 (2) (CT code 9689) for alternative for Australia including distortion model.

Information source: ANZLIC Intergovernmental Committee on Surveying and Mapping (ICSM) (http://www.icsm.gov.au).

Revision date: 2021-01-18

Attributes

Unit: metre

Geodetic CRS: GDA94

Datum: Geocentric Datum of Australia 1994

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Landgate (Government of Western Australia), www.landgate.wa.gov.au.

Revision date: 2017-03-19

Scope: Cadastre, engineering survey.

Remarks: Replaces WGS 84 / CKIG92 (CRS code 6722). Replaced by GDA2020 / CKIG2020 (CRS code 8019).

Area of use: Cocos (Keeling) Islands - onshore.

Coordinate system: Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.

Center coordinates
3476095.96 -2991476.27

Projected bounds:
-138762.84 -5218938.13
12645944.22 -2215345.05

WGS84 bounds:
93.41 -60.55
173.34 -8.47

Australia including Lord Howe Island, Macquarie Island, Ashmore and Cartier Islands, Christmas Island, Cocos (Keeling) Islands, Norfolk Island. All onshore and offshore.
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Definition: Well Known Text (WKT)

PROJCS["GDA94 / CKIG94",
    GEOGCS["GDA94",
        DATUM["Geocentric_Datum_of_Australia_1994",
            SPHEROID["GRS 1980",6378137,298.257222101],
            TOWGS84[61.55,-10.87,-40.19,-39.4924,-32.7221,-32.8979,-9.99400000001]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4283"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",96.875],
    PARAMETER["scale_factor",0.99999387],
    PARAMETER["false_easting",50000],
    PARAMETER["false_northing",1500000],
    UNIT["metre",1],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","6723"]]

Definition: ESRI WKT

PROJCS["GDA_1994_CKIG94",GEOGCS["GCS_GDA_1994",DATUM["D_GDA_1994",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",50000.0],PARAMETER["False_Northing",1500000.0],PARAMETER["Central_Meridian",96.875],PARAMETER["Scale_Factor",0.99999387],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=tmerc +lat_0=0 +lon_0=96.875 +k=0.99999387 +x_0=50000 +y_0=1500000 +ellps=GRS80 +towgs84=61.55,-10.87,-40.19,-39.4924,-32.7221,-32.8979,-9.99400000001316 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:6723","+proj=tmerc +lat_0=0 +lon_0=96.875 +k=0.99999387 +x_0=50000 +y_0=1500000 +ellps=GRS80 +towgs84=61.55,-10.87,-40.19,-39.4924,-32.7221,-32.8979,-9.99400000001316 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "GDA94 / CKIG94",
    "base_crs": {
        "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": "Cocos Island Grid 1994",
        "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": 96.875,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8802
                }
            },
            {
                "name": "Scale factor at natural origin",
                "value": 0.99999387,
                "unit": "unity",
                "id": {
                    "authority": "EPSG",
                    "code": 8805
                }
            },
            {
                "name": "False easting",
                "value": 50000,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": 1500000,
                "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"
            }
        ]
    },
    "scope": "Cadastre, engineering survey.",
    "area": "Cocos (Keeling) Islands - onshore.",
    "bbox": {
        "south_latitude": -12.27,
        "west_longitude": 96.76,
        "north_latitude": -11.76,
        "east_longitude": 96.99
    },
    "id": {
        "authority": "EPSG",
        "code": 6723
    }
}

Definition: GeoServer

6723=PROJCS["GDA94 / CKIG94",GEOGCS["GDA94",DATUM["Geocentric_Datum_of_Australia_1994",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[61.55,-10.87,-40.19,-39.4924,-32.7221,-32.8979,-9.99400000001]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4283"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",96.875],PARAMETER["scale_factor",0.99999387],PARAMETER["false_easting",50000],PARAMETER["false_northing",1500000],UNIT["metre",1],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6723"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=0"
	"lon_0=96.875"
	"k=0.99999387"
	"x_0=50000"
	"y_0=1500000"
	"ellps=GRS80"
	"towgs84=61.55,-10.87,-40.19,-39.4924,-32.7221,-32.8979,-9.99400000001316"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=0 +lon_0=96.875 +k=0.99999387 +x_0=50000 +y_0=1500000 +ellps=GRS80 +towgs84=61.55,-10.87,-40.19,-39.4924,-32.7221,-32.8979,-9.99400000001316 +units=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=0 +lon_0=96.875 +k=0.99999387 +x_0=50000 +y_0=1500000 +ellps=GRS80 +towgs84=61.55,-10.87,-40.19,-39.4924,-32.7221,-32.8979,-9.99400000001316 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 6723, 'EPSG', 6723, '+proj=tmerc +lat_0=0 +lon_0=96.875 +k=0.99999387 +x_0=50000 +y_0=1500000 +ellps=GRS80 +towgs84=61.55,-10.87,-40.19,-39.4924,-32.7221,-32.8979,-9.99400000001316 +units=m +no_defs +type=crs', 'PROJCS["GDA94 / CKIG94",GEOGCS["GDA94",DATUM["Geocentric_Datum_of_Australia_1994",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[61.55,-10.87,-40.19,-39.4924,-32.7221,-32.8979,-9.99400000001]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4283"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",96.875],PARAMETER["scale_factor",0.99999387],PARAMETER["false_easting",50000],PARAMETER["false_northing",1500000],UNIT["metre",1],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6723"]]');

Definition: OGC WKT

PROJCS["GDA94 / CKIG94",GEOGCS["GDA94",DATUM["Geocentric_Datum_of_Australia_1994",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[61.55,-10.87,-40.19,-39.4924,-32.7221,-32.8979,-9.99400000001]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4283"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",96.875],PARAMETER["scale_factor",0.99999387],PARAMETER["false_easting",50000],PARAMETER["false_northing",1500000],UNIT["metre",1],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6723"]]

Definition: OGC WKT 2 (2019)

PROJCRS["GDA94 / CKIG94",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["Cocos Island Grid 1994",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",96.875,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",0.99999387,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False easting",50000,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False northing",1500000,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]],USAGE[SCOPE["Cadastre, engineering survey."],AREA["Cocos (Keeling) Islands - onshore."],BBOX[-12.27,96.76,-11.76,96.99]],ID["EPSG",6723]]