EPSG:6258

DATUM["European_Terrestrial_Reference_System_1989",
    SPHEROID["GRS 1980",6378137,298.257222101,
        AUTHORITY["EPSG","7019"]],
    AUTHORITY["EPSG","6258"]]

ENSEMBLE["European Terrestrial Reference System 1989 ensemble",
    MEMBER["European Terrestrial Reference Frame 1989",
        ID["EPSG",1178]],
    MEMBER["European Terrestrial Reference Frame 1990",
        ID["EPSG",1179]],
    MEMBER["European Terrestrial Reference Frame 1991",
        ID["EPSG",1180]],
    MEMBER["European Terrestrial Reference Frame 1992",
        ID["EPSG",1181]],
    MEMBER["European Terrestrial Reference Frame 1993",
        ID["EPSG",1182]],
    MEMBER["European Terrestrial Reference Frame 1994",
        ID["EPSG",1183]],
    MEMBER["European Terrestrial Reference Frame 1996",
        ID["EPSG",1184]],
    MEMBER["European Terrestrial Reference Frame 1997",
        ID["EPSG",1185]],
    MEMBER["European Terrestrial Reference Frame 2000",
        ID["EPSG",1186]],
    MEMBER["European Terrestrial Reference Frame 2005",
        ID["EPSG",1204]],
    MEMBER["European Terrestrial Reference Frame 2014",
        ID["EPSG",1206]],
    ELLIPSOID["GRS 1980",6378137,298.257222101,
        LENGTHUNIT["metre",1],
        ID["EPSG",7019]],
    ENSEMBLEACCURACY[0.1],
    ID["EPSG",6258]]

DATUM["D_ETRS_1989",
    SPHEROID["GRS_1980",6378137.0,298.257222101]]

{
    "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json",
    "type": "DatumEnsemble",
    "name": "European Terrestrial Reference System 1989 ensemble",
    "members": [
        {
            "name": "European Terrestrial Reference Frame 1989",
            "id": {
                "authority": "EPSG",
                "code": 1178
            }
        },
        {
            "name": "European Terrestrial Reference Frame 1990",
            "id": {
                "authority": "EPSG",
                "code": 1179
            }
        },
        {
            "name": "European Terrestrial Reference Frame 1991",
            "id": {
                "authority": "EPSG",
                "code": 1180
            }
        },
        {
            "name": "European Terrestrial Reference Frame 1992",
            "id": {
                "authority": "EPSG",
                "code": 1181
            }
        },
        {
            "name": "European Terrestrial Reference Frame 1993",
            "id": {
                "authority": "EPSG",
                "code": 1182
            }
        },
        {
            "name": "European Terrestrial Reference Frame 1994",
            "id": {
                "authority": "EPSG",
                "code": 1183
            }
        },
        {
            "name": "European Terrestrial Reference Frame 1996",
            "id": {
                "authority": "EPSG",
                "code": 1184
            }
        },
        {
            "name": "European Terrestrial Reference Frame 1997",
            "id": {
                "authority": "EPSG",
                "code": 1185
            }
        },
        {
            "name": "European Terrestrial Reference Frame 2000",
            "id": {
                "authority": "EPSG",
                "code": 1186
            }
        },
        {
            "name": "European Terrestrial Reference Frame 2005",
            "id": {
                "authority": "EPSG",
                "code": 1204
            }
        },
        {
            "name": "European Terrestrial Reference Frame 2014",
            "id": {
                "authority": "EPSG",
                "code": 1206
            }
        }
    ],
    "ellipsoid": {
        "name": "GRS 1980",
        "semi_major_axis": 6378137,
        "inverse_flattening": 298.257222101
    },
    "accuracy": "0.1",
    "id": {
        "authority": "EPSG",
        "code": 6258
    }
}