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Name: S-JTSK to ETRS89-SVK [SKTRF09] (6)
Grid Files: Slovakia_JTSK03_to_JTSK.LAS Slovakia_JTSK03_to_JTSK.LOS
Remarks: Recommended method of a transformation from S-JTSK to ETRS89 in Slovakia. For reverse transformation see ETRS89-SVK [SKTRF09] to S-JTSK (5) (code 8442). Both together replace S-JTSK to ETRS89 (4) (code 4827).
Information source: Geodesy, Cartography and Cadastre Authority of Slovak Republic (UGKK SR).
Revision date: 2025-12-16
Unit: metre
Geodetic CRS: S-JTSK
Datum: System of the Unified Trigonometrical Cadastral Network
Ellipsoid: Bessel 1841
Prime meridian: Greenwich
Data source: EPSG
Information source: Research Institute for Geodesy Topography and Cartography (VUGTK), Prague; Land Survey Office (ZU), Prague. www.cuzk.cz/zu; and Geodesy, Cartography and Cadastre Authority of Slovak Republic (UGKK SR).
Revision date: 2024-03-06
Scope: Cadastre in Slovakia.
Remarks: Equivalent to CRS code 2065 but referenced to Greenwich meridian. In Slovakia remains the legal system for cadastre but for non-cadastral purposes replaced by CRS 8352. In Czechia remains the legal system but see CRS 5515 for a scientific working system.
Area of use: Czechia; Slovakia.
Coordinate system: Cartesian 2D CS. Axes: southing, westing (X,Y). Orientations: south, west. UoM: m.
&stroke=red&width=2&path=47.73,16.84|49.61,16.84|49.61,22.56|47.73,22.56|47.73,16.84)
Center coordinates
1238664.83 377604.01
Projected bounds:
1116658.38 164132.87
1353306.69 598358.82
WGS84 bounds:
16.84 47.73
22.56 49.61
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ BOUNDCRS[ SOURCECRS[ PROJCRS["S-JTSK / Krovak", BASEGEOGCRS["S-JTSK", DATUM["System of the Unified Trigonometrical Cadastral Network", ELLIPSOID["Bessel 1841",6377397.155,299.1528128, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4156]], CONVERSION["Krovak (Greenwich)", METHOD["Krovak", ID["EPSG",9819]], 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",30.2881397527778, 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",0, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["southing (X)",south, ORDER[1], LENGTHUNIT["metre",1]], AXIS["westing (Y)",west, ORDER[2], LENGTHUNIT["metre",1]], ID["EPSG",5513]]], TARGETCRS[ GEOGCRS["S-JTSK [JTSK03]", DATUM["System of the Unified Trigonometrical Cadastral Network [JTSK03]", ELLIPSOID["Bessel 1841",6377397.155,299.1528128, 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",8351], REMARK["Defined by transformation from ETRS89 (ETRF2000 realization) (transformation code 8365) to improve the scale and homogeneity of S-JTSK (CRS 4156) within Slovakia."]]], ABRIDGEDTRANSFORMATION["Inverse of S-JTSK [JTSK03] to S-JTSK (1)", METHOD["Inverse of NADCON", ID["INVERSE(EPSG)",9613]], PARAMETERFILE["Latitude difference file","Slovakia_JTSK03_to_JTSK.LAS"], PARAMETERFILE["Longitude difference file","Slovakia_JTSK03_to_JTSK.LOS"], ID["INVERSE(EPSG)",8364]]]], TARGETCRS[ GEOGCRS["ETRS89-SVK [SKTRF09]", DATUM["ETRS89-SVK [SKTRF09]", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]], ANCHOREPOCH[2008.5]], 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]], USAGE[ SCOPE["Horizontal component of 3D system."], AREA["Slovakia."], BBOX[47.73,16.84,49.61,22.56]], ID["EPSG",11076], REMARK["Horizontal component of national realization of ETRS89 in Slovakia. From 2024-04-01 replaced by ETRS89-SVK [SKTRF2022] (CRS code 11079)."]]], ABRIDGEDTRANSFORMATION["S-JTSK [JTSK03] to ETRS89-SVK [SKTRF09] (1)", METHOD["Coordinate Frame rotation (geog2D domain)", ID["EPSG",9607]], PARAMETER["X-axis translation",485.021, ID["EPSG",8605]], PARAMETER["Y-axis translation",169.465, ID["EPSG",8606]], PARAMETER["Z-axis translation",483.839, ID["EPSG",8607]], PARAMETER["X-axis rotation",-7.786342, ID["EPSG",8608]], PARAMETER["Y-axis rotation",-4.397554, ID["EPSG",8609]], PARAMETER["Z-axis rotation",-4.102655, ID["EPSG",8610]], PARAMETER["Scale difference",1, ID["EPSG",8611]], USAGE[ SCOPE["Geodesy."], AREA["Slovakia."], BBOX[47.73,16.84,49.61,22.56]], ID["EPSG",8367], REMARK["Derived at 684 points. At the 1mm accuracy level this transformation is not reversible: for reverse see transformation code 8365. May be taken as approximate transformation to WGS 84 - see code 8368."]]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "S-JTSK / Krovak", "base_crs": { "type": "GeographicCRS", "name": "S-JTSK", "datum": { "type": "GeodeticReferenceFrame", "name": "System of the Unified Trigonometrical Cadastral Network", "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": 4156 }, "remarks": "Greenwich-referenced equivalent to S-JTSK (CRS code 4818). Technically improved and replaced through S-JTSK [JTSK03] in Slovakia, CRS code 8351. Remains the legal system in Czechia but see scientific working system CRSs 5228 and 5229." }, "conversion": { "name": "Krovak (Greenwich)", "method": { "name": "Krovak", "id": { "authority": "EPSG", "code": 9819 } }, "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": 30.2881397527778, "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": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Southing", "abbreviation": "X", "direction": "south", "unit": "metre" }, { "name": "Westing", "abbreviation": "Y", "direction": "west", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 5513 } }, "target_crs": { "type": "GeographicCRS", "name": "S-JTSK [JTSK03]", "datum": { "type": "GeodeticReferenceFrame", "name": "System of the Unified Trigonometrical Cadastral Network [JTSK03]", "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": 8351 }, "remarks": "Defined by transformation from ETRS89 (ETRF2000 realization) (transformation code 8365) to improve the scale and homogeneity of S-JTSK (CRS 4156) within Slovakia." }, "transformation": { "name": "Inverse of S-JTSK [JTSK03] to S-JTSK (1)", "method": { "name": "Inverse of NADCON", "id": { "authority": "INVERSE(EPSG)", "code": 9613 } }, "parameters": [ { "name": "Latitude difference file", "value": "Slovakia_JTSK03_to_JTSK.LAS", "id": { "authority": "EPSG", "code": 8657 } }, { "name": "Longitude difference file", "value": "Slovakia_JTSK03_to_JTSK.LOS", "id": { "authority": "EPSG", "code": 8658 } } ], "id": { "authority": "INVERSE(EPSG)", "code": 8364 } } }, "target_crs": { "type": "GeographicCRS", "name": "ETRS89-SVK [SKTRF09]", "datum": { "type": "GeodeticReferenceFrame", "name": "ETRS89-SVK [SKTRF09]", "anchor_epoch": 2008.5, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "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": 11076 }, "remarks": "Horizontal component of national realization of ETRS89 in Slovakia. From 2024-04-01 replaced by ETRS89-SVK [SKTRF2022] (CRS code 11079)." }, "transformation": { "name": "S-JTSK [JTSK03] to ETRS89-SVK [SKTRF09] (1)", "source_crs": { "type": "GeographicCRS", "name": "S-JTSK [JTSK03]", "datum": { "type": "GeodeticReferenceFrame", "name": "System of the Unified Trigonometrical Cadastral Network [JTSK03]", "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": 8351 }, "remarks": "Defined by transformation from ETRS89 (ETRF2000 realization) (transformation code 8365) to improve the scale and homogeneity of S-JTSK (CRS 4156) within Slovakia." }, "method": { "name": "Coordinate Frame rotation (geog2D domain)", "id": { "authority": "EPSG", "code": 9607 } }, "parameters": [ { "name": "X-axis translation", "value": 485.021, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": 169.465, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": 483.839, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": -7.786342, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": -4.397554, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": -4.102655, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": 0, "unit": { "type": "ScaleUnit", "name": "parts per million", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8611 } } ], "id": { "authority": "EPSG", "code": 8367 } } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=krovak +axis=swu +lat_0=49.5 +lon_0=24.8333333333333 +alpha=30.2881397527778 +k=0.9999 +x_0=0 +y_0=0 +ellps=bessel +units=m +no_defs +type=crs"> <Layer srs="+proj=krovak +axis=swu +lat_0=49.5 +lon_0=24.8333333333333 +alpha=30.2881397527778 +k=0.9999 +x_0=0 +y_0=0 +ellps=bessel +units=m +no_defs +type=crs"> </Layer> </Map>
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