EPSG:15896

COORDINATEOPERATION["Kertau (RSO) to Kertau 1968 (1)",
    VERSION["OGP-Mys"],
    SOURCECRS[
        GEOGCRS["Kertau (RSO)",
            DATUM["Kertau (RSO)",
                ELLIPSOID["Everest 1830 (RSO 1969)",6377295.664,300.8017,
                    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",4751]]],
    TARGETCRS[
        GEOGCRS["Kertau 1968",
            DATUM["Kertau 1968",
                ELLIPSOID["Everest 1830 Modified",6377304.063,300.8017,
                    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",4245]]],
    METHOD["Geocentric translations (geog2D domain)",
        ID["EPSG",9603]],
    PARAMETER["X-axis translation",0,
        LENGTHUNIT["metre",1],
        ID["EPSG",8605]],
    PARAMETER["Y-axis translation",0,
        LENGTHUNIT["metre",1],
        ID["EPSG",8606]],
    PARAMETER["Z-axis translation",0,
        LENGTHUNIT["metre",1],
        ID["EPSG",8607]],
    OPERATIONACCURACY[0.0],
    USAGE[
        SCOPE["Transformation of MRT68 RSO coordinates."],
        AREA["Malaysia - West Malaysia; Singapore."],
        BBOX[1.13,99.59,6.72,104.6]],
    ID["EPSG",15896],
    REMARK["To transform Kertau (RSO) to WGS 84, see concatenated transformation code 8659."]]

proj4.defs("EPSG:15896","+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=evrst69 +step +inv +proj=cart +ellps=evrst48 +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": "Kertau (RSO) to Kertau 1968 (1)",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "Kertau (RSO)",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Kertau (RSO)",
            "ellipsoid": {
                "name": "Everest 1830 (RSO 1969)",
                "semi_major_axis": 6377295.664,
                "inverse_flattening": 300.8017
            }
        },
        "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": 4751
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "Kertau 1968",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Kertau 1968",
            "ellipsoid": {
                "name": "Everest 1830 Modified",
                "semi_major_axis": 6377304.063,
                "inverse_flattening": 300.8017
            }
        },
        "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": 4245
        }
    },
    "method": {
        "name": "Geocentric translations (geog2D domain)",
        "id": {
            "authority": "EPSG",
            "code": 9603
        }
    },
    "parameters": [
        {
            "name": "X-axis translation",
            "value": 0,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8605
            }
        },
        {
            "name": "Y-axis translation",
            "value": 0,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8606
            }
        },
        {
            "name": "Z-axis translation",
            "value": 0,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8607
            }
        }
    ],
    "accuracy": "0.0",
    "scope": "Transformation of MRT68 RSO coordinates.",
    "area": "Malaysia - West Malaysia; Singapore.",
    "bbox": {
        "south_latitude": 1.13,
        "west_longitude": 99.59,
        "north_latitude": 6.72,
        "east_longitude": 104.6
    },
    "id": {
        "authority": "EPSG",
        "code": 15896
    },
    "remarks": "To transform Kertau (RSO) to WGS 84, see concatenated transformation code 8659."
}

<?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=evrst69 +step +inv +proj=cart +ellps=evrst48 +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=evrst69 +step +inv +proj=cart +ellps=evrst48 +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 ( 15896, 'EPSG', 15896, '+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=evrst69 +step +inv +proj=cart +ellps=evrst48 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');