S-JTSK/05 / Modified Krovak East North

Czechia. , accuracy 1.0 m, code 5227 (default) [7]

Selected transformation

Method: Coordinate Frame rotation (geog2D domain)

Remarks: Parameter values from S-JTSK/05 to ETRS89 (1) (code 5226). Assumes ETRS89 and WGS 84 can be considered the same to within the accuracy of the transformation. Replaces tfm code 1622.

Information source: OGP

Revision date: 2020-03-14

Attributes

Unit: metre

Geodetic CRS: S-JTSK/05

Datum: System of the Unified Trigonometrical Cadastral Network/05

Ellipsoid: Bessel 1841

Prime meridian: Greenwich

Data source: EPSG

Information source: Land Survey Office (ZU), Prague. www.cuzk.cz/zu

Revision date: 2024-03-06

Scope: GIS.

Remarks: North-orientated alternative to S-JTSK/05 / Modified Krovak (CRS code 5515) for GIS purposes. Coordinates are negative. See CRS code 5225 for Ferro-referenced equivalent. S-JTSK / Krovak (CRS code 5513) remains the legal system.

Area of use: Czechia.

Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.

Covered area powered by MapTiler

Center coordinates
-5671714.6 -6082295.54

Projected bounds:
-5935747.51 -6244147.19
-5418640.5 -5911061.5

WGS84 bounds:
12.09 48.58
18.86 51.06

Czechia.

Definition: OGC Well Known Text 2 (2019)

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PROJCRS["S-JTSK/05 / Modified Krovak East North",
    BASEGEOGCRS["S-JTSK/05",
        DATUM["System of the Unified Trigonometrical Cadastral Network/05",
            ELLIPSOID["Bessel 1841",6377397.155,299.1528128,
                LENGTHUNIT["metre",1]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",5228]],
    CONVERSION["Modified Krovak East North (Greenwich)",
        METHOD["Krovak Modified (North Orientated)",
            ID["EPSG",1043]],
        PARAMETER["Latitude of projection centre",49.5,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8811]],
        PARAMETER["Longitude of origin",24.8333333333333,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8833]],
        PARAMETER["Co-latitude of cone axis",30.2881397222222,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",1036]],
        PARAMETER["Latitude of pseudo standard parallel",78.5,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8818]],
        PARAMETER["Scale factor on pseudo standard parallel",0.9999,
            SCALEUNIT["unity",1],
            ID["EPSG",8819]],
        PARAMETER["False easting",5000000,
            LENGTHUNIT["metre",1],
            ID["EPSG",8806]],
        PARAMETER["False northing",5000000,
            LENGTHUNIT["metre",1],
            ID["EPSG",8807]]],
    CS[Cartesian,2],
        AXIS["easting (X)",east,
            ORDER[1],
            LENGTHUNIT["metre",1]],
        AXIS["northing (Y)",north,
            ORDER[2],
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["GIS."],
        AREA["Czechia."],
        BBOX[48.58,12.09,51.06,18.86]],
    ID["EPSG",5516]]

Definition: PROJ.4

+proj=mod_krovak +lat_0=49.5 +lon_0=24.8333333333333 +alpha=30.2881397222222 +k=0.9999 +x_0=5000000 +y_0=5000000 +ellps=bessel +towgs84=572.213,85.334,461.94,-4.9732,-1.529,-5.2484,3.5378 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:5516","+proj=mod_krovak +lat_0=49.5 +lon_0=24.8333333333333 +alpha=30.2881397222222 +k=0.9999 +x_0=5000000 +y_0=5000000 +ellps=bessel +towgs84=572.213,85.334,461.94,-4.9732,-1.529,-5.2484,3.5378 +units=m +no_defs +type=crs");

Definition: JSON

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{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "S-JTSK/05 / Modified Krovak East North",
    "base_crs": {
        "name": "S-JTSK/05",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "System of the Unified Trigonometrical Cadastral Network/05",
            "ellipsoid": {
                "name": "Bessel 1841",
                "semi_major_axis": 6377397.155,
                "inverse_flattening": 299.1528128
            }
        },
        "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": 5228
        }
    },
    "conversion": {
        "name": "Modified Krovak East North (Greenwich)",
        "method": {
            "name": "Krovak Modified (North Orientated)",
            "id": {
                "authority": "EPSG",
                "code": 1043
            }
        },
        "parameters": [
            {
                "name": "Latitude of projection centre",
                "value": 49.5,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8811
                }
            },
            {
                "name": "Longitude of origin",
                "value": 24.8333333333333,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8833
                }
            },
            {
                "name": "Co-latitude of cone axis",
                "value": 30.2881397222222,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 1036
                }
            },
            {
                "name": "Latitude of pseudo standard parallel",
                "value": 78.5,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8818
                }
            },
            {
                "name": "Scale factor on pseudo standard parallel",
                "value": 0.9999,
                "unit": "unity",
                "id": {
                    "authority": "EPSG",
                    "code": 8819
                }
            },
            {
                "name": "False easting",
                "value": 5000000,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": 5000000,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8807
                }
            }
        ]
    },
    "coordinate_system": {
        "subtype": "Cartesian",
        "axis": [
            {
                "name": "Easting",
                "abbreviation": "X",
                "direction": "east",
                "unit": "metre"
            },
            {
                "name": "Northing",
                "abbreviation": "Y",
                "direction": "north",
                "unit": "metre"
            }
        ]
    },
    "scope": "GIS.",
    "area": "Czechia.",
    "bbox": {
        "south_latitude": 48.58,
        "west_longitude": 12.09,
        "north_latitude": 51.06,
        "east_longitude": 18.86
    },
    "id": {
        "authority": "EPSG",
        "code": 5516
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=mod_krovak"
	"lat_0=49.5"
	"lon_0=24.8333333333333"
	"alpha=30.2881397222222"
	"k=0.9999"
	"x_0=5000000"
	"y_0=5000000"
	"ellps=bessel"
	"towgs84=572.213,85.334,461.94,-4.9732,-1.529,-5.2484,3.5378"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=mod_krovak +lat_0=49.5 +lon_0=24.8333333333333 +alpha=30.2881397222222 +k=0.9999 +x_0=5000000 +y_0=5000000 +ellps=bessel +towgs84=572.213,85.334,461.94,-4.9732,-1.529,-5.2484,3.5378 +units=m +no_defs +type=crs">
	<Layer srs="+proj=mod_krovak +lat_0=49.5 +lon_0=24.8333333333333 +alpha=30.2881397222222 +k=0.9999 +x_0=5000000 +y_0=5000000 +ellps=bessel +towgs84=572.213,85.334,461.94,-4.9732,-1.529,-5.2484,3.5378 +units=m +no_defs +type=crs">
	</Layer>
</Map>

EPSG:5516