EPSG:6279

ITRF97 to GDA94 (2)

Attributes

Geodetic CRS: ITRF97

Datum: International Terrestrial Reference Frame 1997

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Journal of Applied Geodesy 4 (2010) pp189-199 via Geoscience Australia, http://www.ga.gov.au/image_cache/GA19050.pdf

Revision date: 2023-01-12

Scope: Geodesy.

Remarks: RMS residuals 26mm N, 12mm E and 179mm up, maximum residuals 49mm N, 24mm E and 464mm up. Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Replaces 2001 transformation by Dawson and Steed, tfm code 6392.

Method: Time-dependent Coordinate Frame rotation (geocen)

Area of use: Australia - onshore and offshore to 200 nautical mile EEZ boundary. Includes Lord Howe Island, Ashmore and Cartier Islands.

Description: (0,)

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Definition: OGC Well Known Text 2 (2019)

COORDINATEOPERATION["ITRF97 to GDA94 (2)",
    VERSION["GA-Aus 2010"],
    SOURCECRS[
        GEODCRS["ITRF97",
            DYNAMIC[
                FRAMEEPOCH[1997]],
            DATUM["International Terrestrial Reference Frame 1997",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            CS[Cartesian,3],
                AXIS["(X)",geocentricX,
                    ORDER[1],
                    LENGTHUNIT["metre",1]],
                AXIS["(Y)",geocentricY,
                    ORDER[2],
                    LENGTHUNIT["metre",1]],
                AXIS["(Z)",geocentricZ,
                    ORDER[3],
                    LENGTHUNIT["metre",1]],
            ID["EPSG",4918]]],
    TARGETCRS[
        GEODCRS["GDA94",
            DATUM["Geocentric Datum of Australia 1994",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            CS[Cartesian,3],
                AXIS["(X)",geocentricX,
                    ORDER[1],
                    LENGTHUNIT["metre",1]],
                AXIS["(Y)",geocentricY,
                    ORDER[2],
                    LENGTHUNIT["metre",1]],
                AXIS["(Z)",geocentricZ,
                    ORDER[3],
                    LENGTHUNIT["metre",1]],
            ID["EPSG",4938]]],
    METHOD["Time-dependent Coordinate Frame rotation (geocen)",
        ID["EPSG",1056]],
    PARAMETER["X-axis translation",-14.63,
        LENGTHUNIT["millimetre",0.001],
        ID["EPSG",8605]],
    PARAMETER["Y-axis translation",-27.62,
        LENGTHUNIT["millimetre",0.001],
        ID["EPSG",8606]],
    PARAMETER["Z-axis translation",-25.32,
        LENGTHUNIT["millimetre",0.001],
        ID["EPSG",8607]],
    PARAMETER["X-axis rotation",-1.7893,
        ANGLEUNIT["milliarc-second",4.84813681109536E-09],
        ID["EPSG",8608]],
    PARAMETER["Y-axis rotation",-0.6047,
        ANGLEUNIT["milliarc-second",4.84813681109536E-09],
        ID["EPSG",8609]],
    PARAMETER["Z-axis rotation",0.9962,
        ANGLEUNIT["milliarc-second",4.84813681109536E-09],
        ID["EPSG",8610]],
    PARAMETER["Scale difference",6.695,
        SCALEUNIT["parts per billion",1E-09],
        ID["EPSG",8611]],
    PARAMETER["Rate of change of X-axis translation",-8.6,
        LENGTHUNIT["millimetres per year",3.16887651727315E-11],
        ID["EPSG",1040]],
    PARAMETER["Rate of change of Y-axis translation",0.36,
        LENGTHUNIT["millimetres per year",3.16887651727315E-11],
        ID["EPSG",1041]],
    PARAMETER["Rate of change of Z-axis translation",11.25,
        LENGTHUNIT["millimetres per year",3.16887651727315E-11],
        ID["EPSG",1042]],
    PARAMETER["Rate of change of X-axis rotation",1.6394,
        ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16],
        ID["EPSG",1043]],
    PARAMETER["Rate of change of Y-axis rotation",1.5198,
        ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16],
        ID["EPSG",1044]],
    PARAMETER["Rate of change of Z-axis rotation",1.3801,
        ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16],
        ID["EPSG",1045]],
    PARAMETER["Rate of change of Scale difference",0.007,
        SCALEUNIT["parts per billion per year",3.16887651727315E-17],
        ID["EPSG",1046]],
    PARAMETER["Parameter reference epoch",1994,
        TIMEUNIT["year",31556925.445],
        ID["EPSG",1047]],
    OPERATIONACCURACY[0.18],
    USAGE[
        SCOPE["Geodesy."],
        AREA["Australia - onshore and offshore to 200 nautical mile EEZ boundary. Includes Lord Howe Island, Ashmore and Cartier Islands."],
        BBOX[-47.2,109.23,-8.88,163.2]],
    ID["EPSG",6279],
    REMARK["RMS residuals 26mm N, 12mm E and 179mm up, maximum residuals 49mm N, 24mm E and 464mm up. Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Replaces 2001 transformation by Dawson and Steed, tfm code 6392."]]

Definition: PROJ.4

+proj=helmert +x=-0.01463 +y=-0.02762 +z=-0.02532 +rx=-0.0017893 +ry=-0.0006047 +rz=0.0009962 +s=0.006695 +dx=-0.0086 +dy=0.00036 +dz=0.01125 +drx=0.0016394 +dry=0.0015198 +drz=0.0013801 +ds=7e-06 +t_epoch=1994 +convention=coordinate_frame

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:6279","+proj=helmert +x=-0.01463 +y=-0.02762 +z=-0.02532 +rx=-0.0017893 +ry=-0.0006047 +rz=0.0009962 +s=0.006695 +dx=-0.0086 +dy=0.00036 +dz=0.01125 +drx=0.0016394 +dry=0.0015198 +drz=0.0013801 +ds=7e-06 +t_epoch=1994 +convention=coordinate_frame");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Transformation",
    "name": "ITRF97 to GDA94 (2)",
    "source_crs": {
        "type": "GeodeticCRS",
        "name": "ITRF97",
        "datum": {
            "type": "DynamicGeodeticReferenceFrame",
            "name": "International Terrestrial Reference Frame 1997",
            "frame_reference_epoch": 1997,
            "ellipsoid": {
                "name": "GRS 1980",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257222101
            }
        },
        "coordinate_system": {
            "subtype": "Cartesian",
            "axis": [
                {
                    "name": "Geocentric X",
                    "abbreviation": "X",
                    "direction": "geocentricX",
                    "unit": "metre"
                },
                {
                    "name": "Geocentric Y",
                    "abbreviation": "Y",
                    "direction": "geocentricY",
                    "unit": "metre"
                },
                {
                    "name": "Geocentric Z",
                    "abbreviation": "Z",
                    "direction": "geocentricZ",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 4918
        }
    },
    "target_crs": {
        "type": "GeodeticCRS",
        "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": "Cartesian",
            "axis": [
                {
                    "name": "Geocentric X",
                    "abbreviation": "X",
                    "direction": "geocentricX",
                    "unit": "metre"
                },
                {
                    "name": "Geocentric Y",
                    "abbreviation": "Y",
                    "direction": "geocentricY",
                    "unit": "metre"
                },
                {
                    "name": "Geocentric Z",
                    "abbreviation": "Z",
                    "direction": "geocentricZ",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 4938
        }
    },
    "method": {
        "name": "Time-dependent Coordinate Frame rotation (geocen)",
        "id": {
            "authority": "EPSG",
            "code": 1056
        }
    },
    "parameters": [
        {
            "name": "X-axis translation",
            "value": -14.63,
            "unit": {
                "type": "LinearUnit",
                "name": "millimetre",
                "conversion_factor": 0.001
            },
            "id": {
                "authority": "EPSG",
                "code": 8605
            }
        },
        {
            "name": "Y-axis translation",
            "value": -27.62,
            "unit": {
                "type": "LinearUnit",
                "name": "millimetre",
                "conversion_factor": 0.001
            },
            "id": {
                "authority": "EPSG",
                "code": 8606
            }
        },
        {
            "name": "Z-axis translation",
            "value": -25.32,
            "unit": {
                "type": "LinearUnit",
                "name": "millimetre",
                "conversion_factor": 0.001
            },
            "id": {
                "authority": "EPSG",
                "code": 8607
            }
        },
        {
            "name": "X-axis rotation",
            "value": -1.7893,
            "unit": {
                "type": "AngularUnit",
                "name": "milliarc-second",
                "conversion_factor": 4.84813681109536e-09
            },
            "id": {
                "authority": "EPSG",
                "code": 8608
            }
        },
        {
            "name": "Y-axis rotation",
            "value": -0.6047,
            "unit": {
                "type": "AngularUnit",
                "name": "milliarc-second",
                "conversion_factor": 4.84813681109536e-09
            },
            "id": {
                "authority": "EPSG",
                "code": 8609
            }
        },
        {
            "name": "Z-axis rotation",
            "value": 0.9962,
            "unit": {
                "type": "AngularUnit",
                "name": "milliarc-second",
                "conversion_factor": 4.84813681109536e-09
            },
            "id": {
                "authority": "EPSG",
                "code": 8610
            }
        },
        {
            "name": "Scale difference",
            "value": 6.695,
            "unit": {
                "type": "ScaleUnit",
                "name": "parts per billion",
                "conversion_factor": 1e-09
            },
            "id": {
                "authority": "EPSG",
                "code": 8611
            }
        },
        {
            "name": "Rate of change of X-axis translation",
            "value": -8.6,
            "unit": {
                "type": "LinearUnit",
                "name": "millimetres per year",
                "conversion_factor": 3.16887651727315e-11
            },
            "id": {
                "authority": "EPSG",
                "code": 1040
            }
        },
        {
            "name": "Rate of change of Y-axis translation",
            "value": 0.36,
            "unit": {
                "type": "LinearUnit",
                "name": "millimetres per year",
                "conversion_factor": 3.16887651727315e-11
            },
            "id": {
                "authority": "EPSG",
                "code": 1041
            }
        },
        {
            "name": "Rate of change of Z-axis translation",
            "value": 11.25,
            "unit": {
                "type": "LinearUnit",
                "name": "millimetres per year",
                "conversion_factor": 3.16887651727315e-11
            },
            "id": {
                "authority": "EPSG",
                "code": 1042
            }
        },
        {
            "name": "Rate of change of X-axis rotation",
            "value": 1.6394,
            "unit": {
                "type": "AngularUnit",
                "name": "milliarc-seconds per year",
                "conversion_factor": 1.53631468932076e-16
            },
            "id": {
                "authority": "EPSG",
                "code": 1043
            }
        },
        {
            "name": "Rate of change of Y-axis rotation",
            "value": 1.5198,
            "unit": {
                "type": "AngularUnit",
                "name": "milliarc-seconds per year",
                "conversion_factor": 1.53631468932076e-16
            },
            "id": {
                "authority": "EPSG",
                "code": 1044
            }
        },
        {
            "name": "Rate of change of Z-axis rotation",
            "value": 1.3801,
            "unit": {
                "type": "AngularUnit",
                "name": "milliarc-seconds per year",
                "conversion_factor": 1.53631468932076e-16
            },
            "id": {
                "authority": "EPSG",
                "code": 1045
            }
        },
        {
            "name": "Rate of change of Scale difference",
            "value": 0.007,
            "unit": {
                "type": "ScaleUnit",
                "name": "parts per billion per year",
                "conversion_factor": 3.16887651727315e-17
            },
            "id": {
                "authority": "EPSG",
                "code": 1046
            }
        },
        {
            "name": "Parameter reference epoch",
            "value": 1994,
            "unit": {
                "type": "TimeUnit",
                "name": "year",
                "conversion_factor": 31556925.445
            },
            "id": {
                "authority": "EPSG",
                "code": 1047
            }
        }
    ],
    "accuracy": "0.18",
    "scope": "Geodesy.",
    "area": "Australia - onshore and offshore to 200 nautical mile EEZ boundary. Includes Lord Howe Island, Ashmore and Cartier Islands.",
    "bbox": {
        "south_latitude": -47.2,
        "west_longitude": 109.23,
        "north_latitude": -8.88,
        "east_longitude": 163.2
    },
    "id": {
        "authority": "EPSG",
        "code": 6279
    },
    "remarks": "RMS residuals 26mm N, 12mm E and 179mm up, maximum residuals 49mm N, 24mm E and 464mm up. Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Replaces 2001 transformation by Dawson and Steed, tfm code 6392."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=helmert"
	"x=-0.01463"
	"y=-0.02762"
	"z=-0.02532"
	"rx=-0.0017893"
	"ry=-0.0006047"
	"rz=0.0009962"
	"s=0.006695"
	"dx=-0.0086"
	"dy=0.00036"
	"dz=0.01125"
	"drx=0.0016394"
	"dry=0.0015198"
	"drz=0.0013801"
	"ds=7e-06"
	"t_epoch=1994"
	"convention=coordinate_frame"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=helmert +x=-0.01463 +y=-0.02762 +z=-0.02532 +rx=-0.0017893 +ry=-0.0006047 +rz=0.0009962 +s=0.006695 +dx=-0.0086 +dy=0.00036 +dz=0.01125 +drx=0.0016394 +dry=0.0015198 +drz=0.0013801 +ds=7e-06 +t_epoch=1994 +convention=coordinate_frame">
	<Layer srs="+proj=helmert +x=-0.01463 +y=-0.02762 +z=-0.02532 +rx=-0.0017893 +ry=-0.0006047 +rz=0.0009962 +s=0.006695 +dx=-0.0086 +dy=0.00036 +dz=0.01125 +drx=0.0016394 +dry=0.0015198 +drz=0.0013801 +ds=7e-06 +t_epoch=1994 +convention=coordinate_frame">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 6279, 'EPSG', 6279, '+proj=helmert +x=-0.01463 +y=-0.02762 +z=-0.02532 +rx=-0.0017893 +ry=-0.0006047 +rz=0.0009962 +s=0.006695 +dx=-0.0086 +dy=0.00036 +dz=0.01125 +drx=0.0016394 +dry=0.0015198 +drz=0.0013801 +ds=7e-06 +t_epoch=1994 +convention=coordinate_frame', 'None');