EPSG:10321

COORDINATEOPERATION["RGNC91-93 to RGNC15 (1)",
    VERSION["BGN-Ncl 1m"],
    SOURCECRS[
        GEOGCRS["RGNC91-93 (lon-lat)",
            DATUM["Reseau Geodesique de Nouvelle Caledonie 91-93",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            CS[ellipsoidal,2],
                AXIS["geodetic longitude (Lon)",east,
                    ORDER[1],
                    ANGLEUNIT["degree",0.0174532925199433]],
                AXIS["geodetic latitude (Lat)",north,
                    ORDER[2],
                    ANGLEUNIT["degree",0.0174532925199433]],
            ID["EPSG",10307]]],
    TARGETCRS[
        GEOGCRS["RGNC15 (lon-lat)",
            DATUM["Reseau Geodesique de Nouvelle Caledonie 2015",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            CS[ellipsoidal,2],
                AXIS["geodetic longitude (Lon)",east,
                    ORDER[1],
                    ANGLEUNIT["degree",0.0174532925199433]],
                AXIS["geodetic latitude (Lat)",north,
                    ORDER[2],
                    ANGLEUNIT["degree",0.0174532925199433]],
            ID["EPSG",10312]]],
    METHOD["Geocentric translations (geog2D domain)",
        ID["EPSG",9603]],
    PARAMETER["X-axis translation",-0.584,
        LENGTHUNIT["metre",1],
        ID["EPSG",8605]],
    PARAMETER["Y-axis translation",-1.117,
        LENGTHUNIT["metre",1],
        ID["EPSG",8606]],
    PARAMETER["Z-axis translation",1.125,
        LENGTHUNIT["metre",1],
        ID["EPSG",8607]],
    OPERATIONACCURACY[1.0],
    USAGE[
        SCOPE["Transformation of coordinates at 1m level of accuracy."],
        AREA["New Caledonia - Belep, Grande Terre, Ile des Pins, Loyalty Islands (Lifou, Mare, Ouvea)."],
        BBOX[-22.73,163.54,-19.5,168.19]],
    ID["EPSG",10321],
    REMARK["See RGNC91-93 to RGNC15 (2) (transformation code 10322) for authoritative transformation between these CRSs. This transformation is used only as the standard transformation T0 within that transformation."]]

proj4.defs("EPSG:10321","+proj=pipeline +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=push +v_3 +step +proj=cart +ellps=GRS80 +step +proj=helmert +x=-0.584 +y=-1.117 +z=1.125 +step +inv +proj=cart +ellps=GRS80 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg");

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Transformation",
    "name": "RGNC91-93 to RGNC15 (1)",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "RGNC91-93 (lon-lat)",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Reseau Geodesique de Nouvelle Caledonie 91-93",
            "ellipsoid": {
                "name": "GRS 1980",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257222101
            }
        },
        "coordinate_system": {
            "subtype": "ellipsoidal",
            "axis": [
                {
                    "name": "Geodetic longitude",
                    "abbreviation": "Lon",
                    "direction": "east",
                    "unit": "degree"
                },
                {
                    "name": "Geodetic latitude",
                    "abbreviation": "Lat",
                    "direction": "north",
                    "unit": "degree"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 10307
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "RGNC15 (lon-lat)",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Reseau Geodesique de Nouvelle Caledonie 2015",
            "ellipsoid": {
                "name": "GRS 1980",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257222101
            }
        },
        "coordinate_system": {
            "subtype": "ellipsoidal",
            "axis": [
                {
                    "name": "Geodetic longitude",
                    "abbreviation": "Lon",
                    "direction": "east",
                    "unit": "degree"
                },
                {
                    "name": "Geodetic latitude",
                    "abbreviation": "Lat",
                    "direction": "north",
                    "unit": "degree"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 10312
        }
    },
    "method": {
        "name": "Geocentric translations (geog2D domain)",
        "id": {
            "authority": "EPSG",
            "code": 9603
        }
    },
    "parameters": [
        {
            "name": "X-axis translation",
            "value": -0.584,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8605
            }
        },
        {
            "name": "Y-axis translation",
            "value": -1.117,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8606
            }
        },
        {
            "name": "Z-axis translation",
            "value": 1.125,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8607
            }
        }
    ],
    "accuracy": "1.0",
    "scope": "Transformation of coordinates at 1m level of accuracy.",
    "area": "New Caledonia - Belep, Grande Terre, Ile des Pins, Loyalty Islands (Lifou, Mare, Ouvea).",
    "bbox": {
        "south_latitude": -22.73,
        "west_longitude": 163.54,
        "north_latitude": -19.5,
        "east_longitude": 168.19
    },
    "id": {
        "authority": "EPSG",
        "code": 10321
    },
    "remarks": "See RGNC91-93 to RGNC15 (2) (transformation code 10322) for authoritative transformation between these CRSs. This transformation is used only as the standard transformation T0 within that transformation."
}

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=pipeline +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=push +v_3 +step +proj=cart +ellps=GRS80 +step +proj=helmert +x=-0.584 +y=-1.117 +z=1.125 +step +inv +proj=cart +ellps=GRS80 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg">
	<Layer srs="+proj=pipeline +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=push +v_3 +step +proj=cart +ellps=GRS80 +step +proj=helmert +x=-0.584 +y=-1.117 +z=1.125 +step +inv +proj=cart +ellps=GRS80 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg">
	</Layer>
</Map>

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 10321, 'EPSG', 10321, '+proj=pipeline +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=push +v_3 +step +proj=cart +ellps=GRS80 +step +proj=helmert +x=-0.584 +y=-1.117 +z=1.125 +step +inv +proj=cart +ellps=GRS80 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg', 'None');