EPSG:9687

GDA94 to WGS 84 (G1762) (2)

Attributes

Geodetic CRS: GDA94

Datum: Geocentric Datum of Australia 1994

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: 8447 8448

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 GDA94 to WGS 84 (G1762) (1) (CT code 9686) 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["GDA94 to WGS 84 (G1762) (2)",
    VERSION["ICSM-Aus Conf+Dist"],
    SOURCECRS[
        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]]],
    TARGETCRS[
        GEOGCRS["WGS 84 (G1762)",
            DYNAMIC[
                FRAMEEPOCH[2005]],
            DATUM["World Geodetic System 1984 (G1762)",
                ELLIPSOID["WGS 84",6378137,298.257223563,
                    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",9057]]],
    STEP[
        COORDINATEOPERATION["GDA94 to GDA2020 (2)",
            VERSION["ICSM-Aus Conf and Dist"],
            SOURCECRS[
                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]]],
            TARGETCRS[
                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]]],
            METHOD["NTv2",
                ID["EPSG",9615]],
            PARAMETERFILE["Latitude and longitude difference file","GDA94_GDA2020_conformal_and_distortion.gsb"],
            OPERATIONACCURACY[0.05],
            ID["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."]]],
    STEP[
        CONVERSION["Conversion from GDA2020 (geog2D) to GDA2020 (geocentric)",
            METHOD["Geographic/geocentric conversions",
                ID["EPSG",9602]]]],
    STEP[
        COORDINATEOPERATION["GDA2020 to WGS 84 (G1762) (1)",
            VERSION["GA-Aus 0.2m"],
            SOURCECRS[
                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]]],
            TARGETCRS[
                GEODCRS["WGS 84 (G1762)",
                    DYNAMIC[
                        FRAMEEPOCH[2005]],
                    DATUM["World Geodetic System 1984 (G1762)",
                        ELLIPSOID["WGS 84",6378137,298.257223563,
                            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",7664]]],
            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[0.2],
            ID["EPSG",8448],
            REMARK["Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Parameter values taken from ITRF2014 to GDA2020 (1) (code 8049), assuming WGS 84 (G1762) is equivalent to ITRF2014 within the accuracy of the transformation."]]],
    STEP[
        CONVERSION["Conversion from WGS 84 (G1762) (geocentric) to WGS 84 (G1762) (geog2D)",
            METHOD["Geographic/geocentric conversions",
                ID["EPSG",9602]]]],
    OPERATIONACCURACY[0.25],
    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",9687],
    REMARK["See GDA94 to WGS 84 (G1762) (1) (CT code 9686) 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=hgridshift +grids=au_icsm_GDA94_GDA2020_conformal_and_distortion.tif +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=WGS84 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:9687","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=au_icsm_GDA94_GDA2020_conformal_and_distortion.tif +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=WGS84 +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": "GDA94 to WGS 84 (G1762) (2)",
    "source_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
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "WGS 84 (G1762)",
        "datum": {
            "type": "DynamicGeodeticReferenceFrame",
            "name": "World Geodetic System 1984 (G1762)",
            "frame_reference_epoch": 2005,
            "ellipsoid": {
                "name": "WGS 84",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257223563
            }
        },
        "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": 9057
        }
    },
    "steps": [
        {
            "type": "Transformation",
            "name": "GDA94 to GDA2020 (2)",
            "source_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
                }
            },
            "target_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
                }
            },
            "method": {
                "name": "NTv2",
                "id": {
                    "authority": "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": "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."
        },
        {
            "type": "Conversion",
            "name": "Conversion from GDA2020 (geog2D) to GDA2020 (geocentric)",
            "method": {
                "name": "Geographic/geocentric conversions",
                "id": {
                    "authority": "EPSG",
                    "code": 9602
                }
            }
        },
        {
            "type": "Transformation",
            "name": "GDA2020 to WGS 84 (G1762) (1)",
            "source_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
                }
            },
            "target_crs": {
                "type": "GeodeticCRS",
                "name": "WGS 84 (G1762)",
                "datum": {
                    "type": "DynamicGeodeticReferenceFrame",
                    "name": "World Geodetic System 1984 (G1762)",
                    "frame_reference_epoch": 2005,
                    "ellipsoid": {
                        "name": "WGS 84",
                        "semi_major_axis": 6378137,
                        "inverse_flattening": 298.257223563
                    }
                },
                "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": 7664
                }
            },
            "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": "0.2",
            "id": {
                "authority": "EPSG",
                "code": 8448
            },
            "remarks": "Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Parameter values taken from ITRF2014 to GDA2020 (1) (code 8049), assuming WGS 84 (G1762) is equivalent to ITRF2014 within the accuracy of the transformation."
        },
        {
            "type": "Conversion",
            "name": "Conversion from WGS 84 (G1762) (geocentric) to WGS 84 (G1762) (geog2D)",
            "method": {
                "name": "Geographic/geocentric conversions",
                "id": {
                    "authority": "EPSG",
                    "code": 9602
                }
            }
        }
    ],
    "accuracy": "0.25",
    "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": 9687
    },
    "remarks": "See GDA94 to WGS 84 (G1762) (1) (CT code 9686) 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=hgridshift"
	"grids=au_icsm_GDA94_GDA2020_conformal_and_distortion.tif"
	"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=WGS84"
	"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=hgridshift +grids=au_icsm_GDA94_GDA2020_conformal_and_distortion.tif +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=WGS84 +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=hgridshift +grids=au_icsm_GDA94_GDA2020_conformal_and_distortion.tif +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=WGS84 +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 ( 9687, 'EPSG', 9687, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=au_icsm_GDA94_GDA2020_conformal_and_distortion.tif +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=WGS84 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');