EPSG:5680 — DHDN / 3-degree Gauss-Kruger zone 1 (E-N)

PROJCRS[
    "DHDN / 3-degree Gauss-Kruger zone 1 (E-N)",
    BASEGEOGCRS[
        "DHDN",
        DATUM[
            "Deutsches Hauptdreiecksnetz",
            ELLIPSOID[
                "Bessel 1841",
                6377397.155,
                299.1528128,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7004]
            ],
            ID["EPSG",6314]
        ],
        ID["EPSG",4314]
    ],
    CONVERSION[
        "3-degree Gauss-Kruger zone 1",
        METHOD["Transverse Mercator",ID["EPSG",9807]],
        PARAMETER[
            "Latitude of natural origin",
            0,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8801]
        ],
        PARAMETER[
            "Longitude of natural origin",
            3,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "Scale factor at natural origin",
            1,
            SCALEUNIT["unity",1,ID["EPSG",9201]],
            ID["EPSG",8805]
        ],
        PARAMETER[
            "False easting",
            1500000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",16261]
    ],
    CS[Cartesian,2,ID["EPSG",4400]],
    AXIS["Easting (E)",east],
    AXIS["Northing (N)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",5680]
]

+proj=tmerc +lat_0=0 +lon_0=3 +k=1 +x_0=1500000 +y_0=0 +ellps=bessel +nadgrids=BETA2007.gsb +units=m +no_defs +type=crs

proj4.defs("EPSG:5680", "+proj=tmerc +lat_0=0 +lon_0=3 +k=1 +x_0=1500000 +y_0=0 +ellps=bessel +nadgrids=BETA2007.gsb +units=m +no_defs +type=crs");

{
  "type": "CoordinateReferenceSystem",
  "code": 5680,
  "name": "DHDN / 3-degree Gauss-Kruger zone 1 (E-N)",
  "kind": "projected",
  "area": "Germany - offshore North Sea west of 4.5°E",
  "unit": "metre",
  "bbox": [
    55.24,
    3.34,
    55.92,
    4.51
  ],
  "proj4": "+proj=tmerc +lat_0=0 +lon_0=3 +k=1 +x_0=1500000 +y_0=0 +ellps=bessel +nadgrids=BETA2007.gsb +units=m +no_defs +type=crs"
}

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (5680, 'EPSG', 5680, '+proj=tmerc +lat_0=0 +lon_0=3 +k=1 +x_0=1500000 +y_0=0 +ellps=bessel +nadgrids=BETA2007.gsb +units=m +no_defs +type=crs', 'PROJCS["DHDN / 3-degree Gauss-Kruger zone 1 (E-N)",GEOGCS["DHDN",DATUM["Deutsches_Hauptdreiecksnetz",SPHEROID["Bessel 1841",6377397.155,299.1528128],EXTENSION["PROJ4_GRIDS","BETA2007.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4314"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",3],PARAMETER["scale_factor",1],PARAMETER["false_easting",1500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","5680"]]');

PROJECTION
  "+proj=tmerc"
  "+lat_0=0"
  "+lon_0=3"
  "+k=1"
  "+x_0=1500000"
  "+y_0=0"
  "+ellps=bessel"
  "+nadgrids=BETA2007.gsb"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

5680=PROJCS["DHDN / 3-degree Gauss-Kruger zone 1 (E-N)",GEOGCS["DHDN",DATUM["Deutsches_Hauptdreiecksnetz",SPHEROID["Bessel 1841",6377397.155,299.1528128],EXTENSION["PROJ4_GRIDS","BETA2007.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4314"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",3],PARAMETER["scale_factor",1],PARAMETER["false_easting",1500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","5680"]]