EPSG:6942

COORDINATEOPERATION["AGD66 to PNG94 (7)",
    VERSION["Qcl-Png North Fly 3m"],
    SOURCECRS[
        GEOGCRS["AGD66",
            DATUM["Australian Geodetic Datum 1966",
                ELLIPSOID["Australian National Spheroid",6378160,298.25,
                    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",4202]]],
    TARGETCRS[
        GEOGCRS["PNG94",
            DATUM["Papua New Guinea Geodetic Datum 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",5546]]],
    METHOD["Geocentric translations (geog2D domain)",
        ID["EPSG",9603]],
    PARAMETER["X-axis translation",-137.4,
        LENGTHUNIT["metre",1],
        ID["EPSG",8605]],
    PARAMETER["Y-axis translation",-58.9,
        LENGTHUNIT["metre",1],
        ID["EPSG",8606]],
    PARAMETER["Z-axis translation",150.4,
        LENGTHUNIT["metre",1],
        ID["EPSG",8607]],
    OPERATIONACCURACY[2.5],
    USAGE[
        SCOPE["Low accuracy applications."],
        AREA["Papua New Guinea - North Fly area (between 5°04'S and 6°36'S and west of 141°32'E)."],
        BBOX[-6.6,140.89,-5.05,141.54]],
    ID["EPSG",6942],
    REMARK["Derived in 2014 at 7 stations in Ningerum and Tabubil (North Fly District). See AGD66 to PNG94 (6) for a more accurate 7-parameter transformation. May be taken as an approximate transformation AGD66 to WGS 84 - see tfm code 6945."]]

proj4.defs("EPSG:6942","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=push +v_3 +step +proj=cart +ellps=aust_SA +step +proj=helmert +x=-137.4 +y=-58.9 +z=150.4 +step +inv +proj=cart +ellps=GRS80 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1");

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Transformation",
    "name": "AGD66 to PNG94 (7)",
    "source_crs": {
        "type": "GeographicCRS",
        "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
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "PNG94",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Papua New Guinea Geodetic Datum 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": 5546
        }
    },
    "method": {
        "name": "Geocentric translations (geog2D domain)",
        "id": {
            "authority": "EPSG",
            "code": 9603
        }
    },
    "parameters": [
        {
            "name": "X-axis translation",
            "value": -137.4,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8605
            }
        },
        {
            "name": "Y-axis translation",
            "value": -58.9,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8606
            }
        },
        {
            "name": "Z-axis translation",
            "value": 150.4,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8607
            }
        }
    ],
    "accuracy": "2.5",
    "scope": "Low accuracy applications.",
    "area": "Papua New Guinea - North Fly area (between 5°04'S and 6°36'S and west of 141°32'E).",
    "bbox": {
        "south_latitude": -6.6,
        "west_longitude": 140.89,
        "north_latitude": -5.05,
        "east_longitude": 141.54
    },
    "id": {
        "authority": "EPSG",
        "code": 6942
    },
    "remarks": "Derived in 2014 at 7 stations in Ningerum and Tabubil (North Fly District). See AGD66 to PNG94 (6) for a more accurate 7-parameter transformation. May be taken as an approximate transformation AGD66 to WGS 84 - see tfm code 6945."
}

<?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=push +v_3 +step +proj=cart +ellps=aust_SA +step +proj=helmert +x=-137.4 +y=-58.9 +z=150.4 +step +inv +proj=cart +ellps=GRS80 +step +proj=pop +v_3 +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=push +v_3 +step +proj=cart +ellps=aust_SA +step +proj=helmert +x=-137.4 +y=-58.9 +z=150.4 +step +inv +proj=cart +ellps=GRS80 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1">
	</Layer>
</Map>

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 6942, 'EPSG', 6942, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=push +v_3 +step +proj=cart +ellps=aust_SA +step +proj=helmert +x=-137.4 +y=-58.9 +z=150.4 +step +inv +proj=cart +ellps=GRS80 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');