EPSG:9685

ATRF2014 to GDA94 (2)

Attributes

Geodetic CRS: ATRF2014

Datum: Australian Terrestrial Reference Frame 2014

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: GDA2020 Technical Manual, ANZLIC Intergovernmental Committee on Surveying and Mapping (ICSM) (http://www.icsm.gov.au).

Revision date: 2021-01-18

Steps of transformation: 9459 8447

Scope: Transformation of GDA94 coordinates when localised distortion needs to be taken into account, e.g. if GDA94 coordinates were derived from survey control monuments.

Remarks: See ATRF2014 to GDA94 (1) (CT 9684) for conformal-only alternative (i.e. without distortion modelling).

Area of use: Australia - Australian Capital Territory; New South Wales; Northern Territory; Queensland; South Australia; Tasmania; Western Australia; Victoria.

Description: (0,)

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Australia - Australian Capital Territory; New South Wales; Northern Territory; Queensland; South Australia; Tasmania; Western Australia; Victoria.

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Definition: OGC Well Known Text 2 (2019)

CONCATENATEDOPERATION["ATRF2014 to GDA94 (2)",
    VERSION["ICSM-Aus Conf+Dist"],
    SOURCECRS[
        GEOGCRS["ATRF2014",
            DYNAMIC[
                FRAMEEPOCH[2020]],
            DATUM["Australian Terrestrial Reference Frame 2014",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            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]],
            ID["EPSG",9309]]],
    TARGETCRS[
        GEOGCRS["GDA94",
            DATUM["Geocentric Datum of Australia 1994",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            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]],
            ID["EPSG",4283]]],
    STEP[
        CONVERSION["Conversion from ATRF2014 (geog2D) to ATRF2014 (geocentric)",
            METHOD["Geographic/geocentric conversions",
                ID["EPSG",9602]]]],
    STEP[
        COORDINATEOPERATION["ATRF2014 to GDA2020 (1)",
            VERSION["GA-Aus"],
            SOURCECRS[
                GEODCRS["ATRF2014",
                    DYNAMIC[
                        FRAMEEPOCH[2020]],
                    DATUM["Australian Terrestrial Reference Frame 2014",
                        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",9307]]],
            TARGETCRS[
                GEODCRS["GDA2020",
                    DATUM["Geocentric Datum of Australia 2020",
                        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",7842]]],
            METHOD["Time-dependent Coordinate Frame rotation (geocen)",
                ID["EPSG",1056]],
            PARAMETER["X-axis translation",0,
                LENGTHUNIT["millimetre",0.001],
                ID["EPSG",8605]],
            PARAMETER["Y-axis translation",0,
                LENGTHUNIT["millimetre",0.001],
                ID["EPSG",8606]],
            PARAMETER["Z-axis translation",0,
                LENGTHUNIT["millimetre",0.001],
                ID["EPSG",8607]],
            PARAMETER["X-axis rotation",0,
                ANGLEUNIT["milliarc-second",4.84813681109536E-09],
                ID["EPSG",8608]],
            PARAMETER["Y-axis rotation",0,
                ANGLEUNIT["milliarc-second",4.84813681109536E-09],
                ID["EPSG",8609]],
            PARAMETER["Z-axis rotation",0,
                ANGLEUNIT["milliarc-second",4.84813681109536E-09],
                ID["EPSG",8610]],
            PARAMETER["Scale difference",0,
                SCALEUNIT["parts per billion",1E-09],
                ID["EPSG",8611]],
            PARAMETER["Rate of change of X-axis translation",0,
                LENGTHUNIT["millimetres per year",3.16887651727315E-11],
                ID["EPSG",1040]],
            PARAMETER["Rate of change of Y-axis translation",0,
                LENGTHUNIT["millimetres per year",3.16887651727315E-11],
                ID["EPSG",1041]],
            PARAMETER["Rate of change of Z-axis translation",0,
                LENGTHUNIT["millimetres per year",3.16887651727315E-11],
                ID["EPSG",1042]],
            PARAMETER["Rate of change of X-axis rotation",1.50379,
                ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16],
                ID["EPSG",1043]],
            PARAMETER["Rate of change of Y-axis rotation",1.18346,
                ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16],
                ID["EPSG",1044]],
            PARAMETER["Rate of change of Z-axis rotation",1.20716,
                ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16],
                ID["EPSG",1045]],
            PARAMETER["Rate of change of Scale difference",0,
                SCALEUNIT["parts per billion per year",3.16887651727315E-17],
                ID["EPSG",1046]],
            PARAMETER["Parameter reference epoch",2020,
                TIMEUNIT["year",31556925.445],
                ID["EPSG",1047]],
            OPERATIONACCURACY[0.03],
            ID["EPSG",9459],
            REMARK["Describes movement of ATRF2014 relative to GDA2020 due to Australian tectonic plate motion. Derived at 109 stations of the Australian Regional GNSS network (ARGN). Scale difference (dS) in ppb and dS rate in ppb/yr where 1/billion = 1E-9 or nm/m."]]],
    STEP[
        CONVERSION["Conversion from GDA2020 (geocentric) to GDA2020 (geog2D)",
            METHOD["Geographic/geocentric conversions",
                ID["EPSG",9602]]]],
    STEP[
        COORDINATEOPERATION["Inverse of GDA94 to GDA2020 (2)",
            SOURCECRS[
                GEOGCRS["GDA2020",
                    DATUM["Geocentric Datum of Australia 2020",
                        ELLIPSOID["GRS 1980",6378137,298.257222101,
                            LENGTHUNIT["metre",1]]],
                    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]],
                    ID["EPSG",7844]]],
            TARGETCRS[
                GEOGCRS["GDA94",
                    DATUM["Geocentric Datum of Australia 1994",
                        ELLIPSOID["GRS 1980",6378137,298.257222101,
                            LENGTHUNIT["metre",1]]],
                    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]],
                    ID["EPSG",4283]]],
            METHOD["Inverse of NTv2",
                ID["INVERSE(EPSG)",9615]],
            PARAMETERFILE["Latitude and longitude difference file","GDA94_GDA2020_conformal_and_distortion.gsb"],
            OPERATIONACCURACY[0.05],
            ID["INVERSE(EPSG)",8447],
            REMARK["See GDA94 to GDA2020 (1) or (3) (codes 8048 and 8446) for alternative conformal-only transformation without local distortion modelling. GDA2020 Technical Manual and fact sheet T1 give guidance on which to use."]]],
    OPERATIONACCURACY[0.06],
    USAGE[
        SCOPE["Transformation of GDA94 coordinates when localised distortion needs to be taken into account, e.g. if GDA94 coordinates were derived from survey control monuments."],
        AREA["Australia - Australian Capital Territory; New South Wales; Northern Territory; Queensland; South Australia; Tasmania; Western Australia; Victoria."],
        BBOX[-43.7,112.85,-9.86,153.69]],
    ID["EPSG",9685],
    REMARK["See ATRF2014 to GDA94 (1) (CT 9684) for conformal-only alternative (i.e. without distortion modelling)."]]

Definition: PROJ.4

+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=cart +ellps=GRS80 +step +proj=helmert +x=0 +y=0 +z=0 +rx=0 +ry=0 +rz=0 +s=0 +dx=0 +dy=0 +dz=0 +drx=0.00150379 +dry=0.00118346 +drz=0.00120716 +ds=0 +t_epoch=2020 +convention=coordinate_frame +step +inv +proj=cart +ellps=GRS80 +step +inv +proj=hgridshift +grids=au_icsm_GDA94_GDA2020_conformal_and_distortion.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:9685","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=cart +ellps=GRS80 +step +proj=helmert +x=0 +y=0 +z=0 +rx=0 +ry=0 +rz=0 +s=0 +dx=0 +dy=0 +dz=0 +drx=0.00150379 +dry=0.00118346 +drz=0.00120716 +ds=0 +t_epoch=2020 +convention=coordinate_frame +step +inv +proj=cart +ellps=GRS80 +step +inv +proj=hgridshift +grids=au_icsm_GDA94_GDA2020_conformal_and_distortion.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ConcatenatedOperation",
    "name": "ATRF2014 to GDA94 (2)",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "ATRF2014",
        "datum": {
            "type": "DynamicGeodeticReferenceFrame",
            "name": "Australian Terrestrial Reference Frame 2014",
            "frame_reference_epoch": 2020,
            "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": 9309
        }
    },
    "target_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
        }
    },
    "steps": [
        {
            "type": "Conversion",
            "name": "Conversion from ATRF2014 (geog2D) to ATRF2014 (geocentric)",
            "method": {
                "name": "Geographic/geocentric conversions",
                "id": {
                    "authority": "EPSG",
                    "code": 9602
                }
            }
        },
        {
            "type": "Transformation",
            "name": "ATRF2014 to GDA2020 (1)",
            "source_crs": {
                "type": "GeodeticCRS",
                "name": "ATRF2014",
                "datum": {
                    "type": "DynamicGeodeticReferenceFrame",
                    "name": "Australian Terrestrial Reference Frame 2014",
                    "frame_reference_epoch": 2020,
                    "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": 9307
                }
            },
            "target_crs": {
                "type": "GeodeticCRS",
                "name": "GDA2020",
                "datum": {
                    "type": "GeodeticReferenceFrame",
                    "name": "Geocentric Datum of Australia 2020",
                    "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": 7842
                }
            },
            "method": {
                "name": "Time-dependent Coordinate Frame rotation (geocen)",
                "id": {
                    "authority": "EPSG",
                    "code": 1056
                }
            },
            "parameters": [
                {
                    "name": "X-axis translation",
                    "value": 0,
                    "unit": {
                        "type": "LinearUnit",
                        "name": "millimetre",
                        "conversion_factor": 0.001
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8605
                    }
                },
                {
                    "name": "Y-axis translation",
                    "value": 0,
                    "unit": {
                        "type": "LinearUnit",
                        "name": "millimetre",
                        "conversion_factor": 0.001
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8606
                    }
                },
                {
                    "name": "Z-axis translation",
                    "value": 0,
                    "unit": {
                        "type": "LinearUnit",
                        "name": "millimetre",
                        "conversion_factor": 0.001
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8607
                    }
                },
                {
                    "name": "X-axis rotation",
                    "value": 0,
                    "unit": {
                        "type": "AngularUnit",
                        "name": "milliarc-second",
                        "conversion_factor": 4.84813681109536e-09
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8608
                    }
                },
                {
                    "name": "Y-axis rotation",
                    "value": 0,
                    "unit": {
                        "type": "AngularUnit",
                        "name": "milliarc-second",
                        "conversion_factor": 4.84813681109536e-09
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8609
                    }
                },
                {
                    "name": "Z-axis rotation",
                    "value": 0,
                    "unit": {
                        "type": "AngularUnit",
                        "name": "milliarc-second",
                        "conversion_factor": 4.84813681109536e-09
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 8610
                    }
                },
                {
                    "name": "Scale difference",
                    "value": 0,
                    "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": 0,
                    "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,
                    "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": 0,
                    "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": 1.50379,
                    "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": 1.18346,
                    "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": 1.20716,
                    "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,
                    "unit": {
                        "type": "ScaleUnit",
                        "name": "parts per billion per year",
                        "conversion_factor": 3.16887651727315e-17
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 1046
                    }
                },
                {
                    "name": "Parameter reference epoch",
                    "value": 2020,
                    "unit": {
                        "type": "TimeUnit",
                        "name": "year",
                        "conversion_factor": 31556925.445
                    },
                    "id": {
                        "authority": "EPSG",
                        "code": 1047
                    }
                }
            ],
            "accuracy": "0.03",
            "id": {
                "authority": "EPSG",
                "code": 9459
            },
            "remarks": "Describes movement of ATRF2014 relative to GDA2020 due to Australian tectonic plate motion. Derived at 109 stations of the Australian Regional GNSS network (ARGN). Scale difference (dS) in ppb and dS rate in ppb/yr where 1/billion = 1E-9 or nm/m."
        },
        {
            "type": "Conversion",
            "name": "Conversion from GDA2020 (geocentric) to GDA2020 (geog2D)",
            "method": {
                "name": "Geographic/geocentric conversions",
                "id": {
                    "authority": "EPSG",
                    "code": 9602
                }
            }
        },
        {
            "type": "Transformation",
            "name": "Inverse of GDA94 to GDA2020 (2)",
            "source_crs": {
                "type": "GeographicCRS",
                "name": "GDA2020",
                "datum": {
                    "type": "GeodeticReferenceFrame",
                    "name": "Geocentric Datum of Australia 2020",
                    "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": 7844
                }
            },
            "target_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
                }
            },
            "method": {
                "name": "Inverse of NTv2",
                "id": {
                    "authority": "INVERSE(EPSG)",
                    "code": 9615
                }
            },
            "parameters": [
                {
                    "name": "Latitude and longitude difference file",
                    "value": "GDA94_GDA2020_conformal_and_distortion.gsb",
                    "id": {
                        "authority": "EPSG",
                        "code": 8656
                    }
                }
            ],
            "accuracy": "0.05",
            "id": {
                "authority": "INVERSE(EPSG)",
                "code": 8447
            },
            "remarks": "See GDA94 to GDA2020 (1) or (3) (codes 8048 and 8446) for alternative conformal-only transformation without local distortion modelling. GDA2020 Technical Manual and fact sheet T1 give guidance on which to use."
        }
    ],
    "accuracy": "0.06",
    "scope": "Transformation of GDA94 coordinates when localised distortion needs to be taken into account, e.g. if GDA94 coordinates were derived from survey control monuments.",
    "area": "Australia - Australian Capital Territory; New South Wales; Northern Territory; Queensland; South Australia; Tasmania; Western Australia; Victoria.",
    "bbox": {
        "south_latitude": -43.7,
        "west_longitude": 112.85,
        "north_latitude": -9.86,
        "east_longitude": 153.69
    },
    "id": {
        "authority": "EPSG",
        "code": 9685
    },
    "remarks": "See ATRF2014 to GDA94 (1) (CT 9684) for conformal-only alternative (i.e. without distortion modelling)."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=pipeline"
	"step"
	"proj=axisswap"
	"order=2,1"
	"step"
	"proj=unitconvert"
	"xy_in=deg"
	"xy_out=rad"
	"step"
	"proj=cart"
	"ellps=GRS80"
	"step"
	"proj=helmert"
	"x=0"
	"y=0"
	"z=0"
	"rx=0"
	"ry=0"
	"rz=0"
	"s=0"
	"dx=0"
	"dy=0"
	"dz=0"
	"drx=0.00150379"
	"dry=0.00118346"
	"drz=0.00120716"
	"ds=0"
	"t_epoch=2020"
	"convention=coordinate_frame"
	"step"
	"inv"
	"proj=cart"
	"ellps=GRS80"
	"step"
	"inv"
	"proj=hgridshift"
	"grids=au_icsm_GDA94_GDA2020_conformal_and_distortion.tif"
	"step"
	"proj=unitconvert"
	"xy_in=rad"
	"xy_out=deg"
	"step"
	"proj=axisswap"
	"order=2,1"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=cart +ellps=GRS80 +step +proj=helmert +x=0 +y=0 +z=0 +rx=0 +ry=0 +rz=0 +s=0 +dx=0 +dy=0 +dz=0 +drx=0.00150379 +dry=0.00118346 +drz=0.00120716 +ds=0 +t_epoch=2020 +convention=coordinate_frame +step +inv +proj=cart +ellps=GRS80 +step +inv +proj=hgridshift +grids=au_icsm_GDA94_GDA2020_conformal_and_distortion.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1">
	<Layer srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=cart +ellps=GRS80 +step +proj=helmert +x=0 +y=0 +z=0 +rx=0 +ry=0 +rz=0 +s=0 +dx=0 +dy=0 +dz=0 +drx=0.00150379 +dry=0.00118346 +drz=0.00120716 +ds=0 +t_epoch=2020 +convention=coordinate_frame +step +inv +proj=cart +ellps=GRS80 +step +inv +proj=hgridshift +grids=au_icsm_GDA94_GDA2020_conformal_and_distortion.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9685, 'EPSG', 9685, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=cart +ellps=GRS80 +step +proj=helmert +x=0 +y=0 +z=0 +rx=0 +ry=0 +rz=0 +s=0 +dx=0 +dy=0 +dz=0 +drx=0.00150379 +dry=0.00118346 +drz=0.00120716 +ds=0 +t_epoch=2020 +convention=coordinate_frame +step +inv +proj=cart +ellps=GRS80 +step +inv +proj=hgridshift +grids=au_icsm_GDA94_GDA2020_conformal_and_distortion.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');