EPSG:CODE

EPSG:5221 — S-JTSK (Ferro) / Krovak East North

Projected · Europe - Czechoslovakia

Export Formats

WKT2
PROJCRS[
    "S-JTSK (Ferro) / Krovak East North",
    BASEGEOGCRS[
        "S-JTSK (Ferro)",
        DATUM[
            "System of the Unified Trigonometrical Cadastral Network (Ferro)",
            ELLIPSOID[
                "Bessel 1841",
                6377397.155,
                299.1528128,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7004]
            ],
            ID["EPSG",6818]
        ],
        PRIMEM[
            "Ferro",
            -17.666666667,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8909]
        ],
        ID["EPSG",4818]
    ],
    CONVERSION[
        "Krovak East North",
        METHOD["Krovak (North Orientated)",ID["EPSG",1041]],
        PARAMETER[
            "Latitude of projection centre",
            49.5000000000003,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8811]
        ],
        PARAMETER[
            "Longitude of origin",
            42.5000000000003,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8833]
        ],
        PARAMETER[
            "Co-latitude of cone axis",
            30.2881397527781,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",1036]
        ],
        PARAMETER[
            "Latitude of pseudo standard parallel",
            78.5000000000003,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8818]
        ],
        PARAMETER[
            "Scale factor on pseudo standard parallel",
            0.9999,
            SCALEUNIT["unity",1,ID["EPSG",9201]],
            ID["EPSG",8819]
        ],
        PARAMETER[
            "False easting",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",5218]
    ],
    CS[Cartesian,2,ID["EPSG",4499]],
    AXIS["Easting (X)",east],
    AXIS["Northing (Y)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",5221]
]

Related Coordinate Systems

Available Transformations (4)

Transformations inherited from base CRS: EPSG:4818 (S-JTSK (Ferro))

Transformation Source → Target Accuracy (m)
S-JTSK (Ferro) to S-JTSK (1)
4818 → 4156 0
S-JTSK (Ferro) to WGS 84 (2)
4818 → 4326 1
S-JTSK (Ferro) to WGS 84 (3)
4818 → 4326 1
S-JTSK (Ferro) to WGS 84 (1)
4818 → 4326 1

Other CRS using System of the Unified Trigonometrical Cadastral Network (Ferro)

Frequently Asked Questions

How do I add EPSG:5221 to PostGIS?

Add the following definition to your PostGIS configuration: 

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (5221, 'EPSG', 5221, '+proj=krovak +lat_0=49.5 +lon_0=42.5 +alpha=30.2881397527778 +k=0.9999 +x_0=0 +y_0=0 +ellps=bessel +pm=ferro +units=m +no_defs +type=crs', '');
Read the full PostGIS guide →

How do I add EPSG:5221 to MapServer?

Add the following definition to your MapServer configuration: 

PROJECTION
  "+proj=krovak"
  "+lat_0=49.5"
  "+lon_0=42.5"
  "+alpha=30.2881397527778"
  "+k=0.9999"
  "+x_0=0"
  "+y_0=0"
  "+ellps=bessel"
  "+pm=ferro"
  "+units=m"
  "+no_defs"
  "+type=crs"
END
Read the full MapServer guide →

How do I use EPSG:5221 with Proj4js?

Add the following definition to your Proj4js configuration: 

proj4.defs("EPSG:5221", "+proj=krovak +lat_0=49.5 +lon_0=42.5 +alpha=30.2881397527778 +k=0.9999 +x_0=0 +y_0=0 +ellps=bessel +pm=ferro +units=m +no_defs +type=crs");
Read the full Proj4js guide →