EPSG:20251

AGD66 / AMG zone 51

Transform Get position on a map

Available transformations
to EPSG:4326
EPSG:4326 - WGS 84

Selected transformation

Method: Coordinate Frame rotation (geog2D domain)

Remarks: Parameter values from AGD66 to GDA94 (4) (code 1460). Approximation assuming WGS 84 is equivalent to GDA94; ignores the low accuracy of the WGS 84 ensemble and the inconsistent application of tectonic plate motion to WGS 84 data.

Information source: OGP

Revision date: 2021-01-18

Attributes

Unit: metre

Geodetic CRS: AGD66

Datum: Australian Geodetic Datum 1966

Ellipsoid: Australian National Spheroid

Prime meridian: Greenwich

Data source: EPSG

Revision date: 1995-06-02

Scope: Engineering survey, topographic mapping.

Area of use: Australia - onshore and offshore between 120°E and 126°E.

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

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Center coordinates
2780110.59 5995224.6

Projected bounds:
2055530.27 5503944.85
3593143.92 6469093.2

WGS84 bounds:
140.96 -39.2
153.69 -28.15

Australia - New South Wales and Victoria.
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Definition: Well Known Text (WKT)

PROJCS["AGD66 / AMG zone 51",
    GEOGCS["AGD66",
        DATUM["Australian_Geodetic_Datum_1966",
            SPHEROID["Australian National Spheroid",6378160,298.25],
            TOWGS84[-119.353,-48.301,139.484,-0.415,-0.26,-0.437,-0.612999999983]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4202"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",123],
    PARAMETER["scale_factor",0.9996],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",10000000],
    UNIT["metre",1],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","20251"]]

Definition: ESRI WKT

PROJCS["AGD_1966_AMG_Zone_51",GEOGCS["GCS_Australian_1966",DATUM["D_Australian_1966",SPHEROID["Australian",6378160.0,298.25]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",10000000.0],PARAMETER["Central_Meridian",123.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=utm +zone=51 +south +ellps=aust_SA +towgs84=-119.353,-48.301,139.484,-0.415,-0.26,-0.437,-0.612999999982655 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:20251","+proj=utm +zone=51 +south +ellps=aust_SA +towgs84=-119.353,-48.301,139.484,-0.415,-0.26,-0.437,-0.612999999982655 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "ProjectedCRS",
        "name": "AGD66 / AMG zone 51",
        "base_crs": {
            "name": "AGD66",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "Australian Geodetic Datum 1966",
                "ellipsoid": {
                    "name": "Australian National Spheroid",
                    "semi_major_axis": 6378160,
                    "inverse_flattening": 298.25
                }
            },
            "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": 4202
            }
        },
        "conversion": {
            "name": "Australian Map Grid zone 51",
            "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": 123,
                    "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": 20251
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "WGS 84",
        "datum_ensemble": {
            "name": "World Geodetic System 1984 ensemble",
            "members": [
                {
                    "name": "World Geodetic System 1984 (Transit)"
                },
                {
                    "name": "World Geodetic System 1984 (G730)"
                },
                {
                    "name": "World Geodetic System 1984 (G873)"
                },
                {
                    "name": "World Geodetic System 1984 (G1150)"
                },
                {
                    "name": "World Geodetic System 1984 (G1674)"
                },
                {
                    "name": "World Geodetic System 1984 (G1762)"
                },
                {
                    "name": "World Geodetic System 1984 (G2139)"
                }
            ],
            "ellipsoid": {
                "name": "WGS 84",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257223563
            },
            "accuracy": "2.0"
        },
        "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": -119.353,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8605
                }
            },
            {
                "name": "Y-axis translation",
                "value": -48.301,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8606
                }
            },
            {
                "name": "Z-axis translation",
                "value": 139.484,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8607
                }
            },
            {
                "name": "X-axis rotation",
                "value": -0.415,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8608
                }
            },
            {
                "name": "Y-axis rotation",
                "value": -0.26,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8609
                }
            },
            {
                "name": "Z-axis rotation",
                "value": -0.437,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8610
                }
            },
            {
                "name": "Scale difference",
                "value": -0.612999999982655,
                "unit": {
                    "type": "ScaleUnit",
                    "name": "parts per million",
                    "conversion_factor": 1e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8611
                }
            }
        ]
    }
}

Definition: GeoServer

20251=PROJCS["AGD66 / AMG zone 51",GEOGCS["AGD66",DATUM["Australian_Geodetic_Datum_1966",SPHEROID["Australian National Spheroid",6378160,298.25],TOWGS84[-119.353,-48.301,139.484,-0.415,-0.26,-0.437,-0.612999999983]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4202"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",123],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","20251"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=utm"
	"zone=51"
	"south"
	"ellps=aust_SA"
	"towgs84=-119.353,-48.301,139.484,-0.415,-0.26,-0.437,-0.612999999982655"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=utm +zone=51 +south +ellps=aust_SA +towgs84=-119.353,-48.301,139.484,-0.415,-0.26,-0.437,-0.612999999982655 +units=m +no_defs +type=crs">
	<Layer srs="+proj=utm +zone=51 +south +ellps=aust_SA +towgs84=-119.353,-48.301,139.484,-0.415,-0.26,-0.437,-0.612999999982655 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 20251, 'EPSG', 20251, '+proj=utm +zone=51 +south +ellps=aust_SA +towgs84=-119.353,-48.301,139.484,-0.415,-0.26,-0.437,-0.612999999982655 +units=m +no_defs +type=crs', 'PROJCS["AGD66 / AMG zone 51",GEOGCS["AGD66",DATUM["Australian_Geodetic_Datum_1966",SPHEROID["Australian National Spheroid",6378160,298.25],TOWGS84[-119.353,-48.301,139.484,-0.415,-0.26,-0.437,-0.612999999983]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4202"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",123],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","20251"]]');

Definition: OGC WKT

PROJCS["AGD66 / AMG zone 51",GEOGCS["AGD66",DATUM["Australian_Geodetic_Datum_1966",SPHEROID["Australian National Spheroid",6378160,298.25],TOWGS84[-119.353,-48.301,139.484,-0.415,-0.26,-0.437,-0.612999999983]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4202"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",123],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","20251"]]

Definition: OGC WKT 2 (2019)

BOUNDCRS[SOURCECRS[PROJCRS["AGD66 / AMG zone 51",BASEGEOGCRS["AGD66",DATUM["Australian Geodetic Datum 1966",ELLIPSOID["Australian National Spheroid",6378160,298.25,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4202]],CONVERSION["Australian Map Grid zone 51",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",123,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]],USAGE[SCOPE["Engineering survey, topographic mapping."],AREA["Australia - onshore and offshore between 120°E and 126°E."],BBOX[-38.07,120,-10.46,126.01]],ID["EPSG",20251]]],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",-119.353,ID["EPSG",8605]],PARAMETER["Y-axis translation",-48.301,ID["EPSG",8606]],PARAMETER["Z-axis translation",139.484,ID["EPSG",8607]],PARAMETER["X-axis rotation",-0.415,ID["EPSG",8608]],PARAMETER["Y-axis rotation",-0.26,ID["EPSG",8609]],PARAMETER["Z-axis rotation",-0.437,ID["EPSG",8610]],PARAMETER["Scale difference",0.999999387,ID["EPSG",8611]]]]