EPSG:2541

Pulkovo 1942 / 3-degree Gauss-Kruger zone 25

Transform Get position on a map

Available transformations
to EPSG:4326
EPSG:4326 - WGS 84

Selected transformation

Method: Position Vector transformation (geog2D domain)

Remarks: Derived via WGS72 values taken from SOCAR Magnavox 1502 manual. Used by AIOC 1995-1997 then replaced by the AIOC97 values (tfm code 1808). Do not confuse with AIOC95 vertical datum as used in southern Caspian Sea and at Sangachal terminal by AIOC.

Information source: BP

Revision date: 2023-11-19

Attributes

Unit: metre

Geodetic CRS: Pulkovo 1942

Datum: Pulkovo 1942

Ellipsoid: Krassowsky 1940

Prime meridian: Greenwich

Data source: EPSG

Information source: OGP

Revision date: 2002-06-22

Scope: Cadastre, engineering survey, topographic mapping (large scale).

Remarks: Also found with truncated false easting - see Pulkovo 1942 / 3-degree Gauss-Kruger CM 75E (code 2601).

Area of use: Kazakhstan, Kyrgyzstan, Russian Federation onshore and Tajikistan - between 73°30'E and 76°30'E.

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

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SimpleMap

Center coordinates
23212405.12 4815475.84

Projected bounds:
22814533.37 4460511.29
23586803.76 5183828.33

WGS84 bounds:
44.77 37.89
51.73 42.59

Azerbaijan - onshore and offshore.
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Definition: OGC Well Known Text

PROJCS["Pulkovo 1942 / 3-degree Gauss-Kruger zone 25",
    GEOGCS["Pulkovo 1942",
        DATUM["Pulkovo_1942",
            SPHEROID["Krassowsky 1940",6378245,298.3],
            TOWGS84[27,-135,-84.5,0,0,0.554,0.2263]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4284"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",75],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",25500000],
    PARAMETER["false_northing",0],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AUTHORITY["EPSG","2541"]]

Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        PROJCRS["Pulkovo 1942 / 3-degree Gauss-Kruger zone 25",
            BASEGEOGCRS["Pulkovo 1942",
                DATUM["Pulkovo 1942",
                    ELLIPSOID["Krassowsky 1940",6378245,298.3,
                        LENGTHUNIT["metre",1]]],
                PRIMEM["Greenwich",0,
                    ANGLEUNIT["degree",0.0174532925199433]],
                ID["EPSG",4284]],
            CONVERSION["3-degree Gauss-Kruger zone 25",
                METHOD["Transverse Mercator",
                    ID["EPSG",9807]],
                PARAMETER["Latitude of natural origin",0,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8801]],
                PARAMETER["Longitude of natural origin",75,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8802]],
                PARAMETER["Scale factor at natural origin",1,
                    SCALEUNIT["unity",1],
                    ID["EPSG",8805]],
                PARAMETER["False easting",25500000,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8806]],
                PARAMETER["False northing",0,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8807]]],
            CS[Cartesian,2],
                AXIS["northing (X)",north,
                    ORDER[1],
                    LENGTHUNIT["metre",1]],
                AXIS["easting (Y)",east,
                    ORDER[2],
                    LENGTHUNIT["metre",1]],
            USAGE[
                SCOPE["Cadastre, engineering survey, topographic mapping (large scale)."],
                AREA["Kazakhstan, Kyrgyzstan, Russian Federation onshore and Tajikistan - between 73°30'E and 76°30'E."],
                BBOX[37.22,73.5,79.71,76.5]],
            ID["EPSG",2541]]],
    TARGETCRS[
        GEOGCRS["WGS 84",
            ENSEMBLE["World Geodetic System 1984 ensemble",
                MEMBER["World Geodetic System 1984 (Transit)"],
                MEMBER["World Geodetic System 1984 (G730)"],
                MEMBER["World Geodetic System 1984 (G873)"],
                MEMBER["World Geodetic System 1984 (G1150)"],
                MEMBER["World Geodetic System 1984 (G1674)"],
                MEMBER["World Geodetic System 1984 (G1762)"],
                MEMBER["World Geodetic System 1984 (G2139)"],
                ELLIPSOID["WGS 84",6378137,298.257223563,
                    LENGTHUNIT["metre",1]],
                ENSEMBLEACCURACY[2.0]],
            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["World."],
                BBOX[-90,-180,90,180]],
            ID["EPSG",4326]]],
    ABRIDGEDTRANSFORMATION["Transformation from unknown to WGS84",
        METHOD["Position Vector transformation (geog2D domain)",
            ID["EPSG",9606]],
        PARAMETER["X-axis translation",27,
            ID["EPSG",8605]],
        PARAMETER["Y-axis translation",-135,
            ID["EPSG",8606]],
        PARAMETER["Z-axis translation",-84.5,
            ID["EPSG",8607]],
        PARAMETER["X-axis rotation",0,
            ID["EPSG",8608]],
        PARAMETER["Y-axis rotation",0,
            ID["EPSG",8609]],
        PARAMETER["Z-axis rotation",0.554,
            ID["EPSG",8610]],
        PARAMETER["Scale difference",1.0000002263,
            ID["EPSG",8611]]]]

Definition: ESRI Well Known Text

PROJCS["Pulkovo_1942_3_Degree_GK_Zone_25",
    GEOGCS["GCS_Pulkovo_1942",
        DATUM["D_Pulkovo_1942",
            SPHEROID["Krasovsky_1940",6378245.0,298.3]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Gauss_Kruger"],
    PARAMETER["False_Easting",25500000.0],
    PARAMETER["False_Northing",0.0],
    PARAMETER["Central_Meridian",75.0],
    PARAMETER["Scale_Factor",1.0],
    PARAMETER["Latitude_Of_Origin",0.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=tmerc +lat_0=0 +lon_0=75 +k=1 +x_0=25500000 +y_0=0 +ellps=krass +towgs84=27,-135,-84.5,0,0,0.554,0.2263 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:2541","+proj=tmerc +lat_0=0 +lon_0=75 +k=1 +x_0=25500000 +y_0=0 +ellps=krass +towgs84=27,-135,-84.5,0,0,0.554,0.2263 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "ProjectedCRS",
        "name": "Pulkovo 1942 / 3-degree Gauss-Kruger zone 25",
        "base_crs": {
            "name": "Pulkovo 1942",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "Pulkovo 1942",
                "ellipsoid": {
                    "name": "Krassowsky 1940",
                    "semi_major_axis": 6378245,
                    "inverse_flattening": 298.3
                }
            },
            "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": 4284
            }
        },
        "conversion": {
            "name": "3-degree Gauss-Kruger zone 25",
            "method": {
                "name": "Transverse Mercator",
                "id": {
                    "authority": "EPSG",
                    "code": 9807
                }
            },
            "parameters": [
                {
                    "name": "Latitude of natural origin",
                    "value": 0,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8801
                    }
                },
                {
                    "name": "Longitude of natural origin",
                    "value": 75,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8802
                    }
                },
                {
                    "name": "Scale factor at natural origin",
                    "value": 1,
                    "unit": "unity",
                    "id": {
                        "authority": "EPSG",
                        "code": 8805
                    }
                },
                {
                    "name": "False easting",
                    "value": 25500000,
                    "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": "Northing",
                    "abbreviation": "X",
                    "direction": "north",
                    "unit": "metre"
                },
                {
                    "name": "Easting",
                    "abbreviation": "Y",
                    "direction": "east",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 2541
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "WGS 84",
        "datum_ensemble": {
            "name": "World Geodetic System 1984 ensemble",
            "members": [
                {
                    "name": "World Geodetic System 1984 (Transit)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1166
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G730)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1152
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G873)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1153
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1150)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1154
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1674)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1155
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1762)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1156
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G2139)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1309
                    }
                }
            ],
            "ellipsoid": {
                "name": "WGS 84",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257223563
            },
            "accuracy": "2.0",
            "id": {
                "authority": "EPSG",
                "code": 6326
            }
        },
        "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": 4326
        }
    },
    "transformation": {
        "name": "Transformation from unknown to WGS84",
        "method": {
            "name": "Position Vector transformation (geog2D domain)",
            "id": {
                "authority": "EPSG",
                "code": 9606
            }
        },
        "parameters": [
            {
                "name": "X-axis translation",
                "value": 27,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8605
                }
            },
            {
                "name": "Y-axis translation",
                "value": -135,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8606
                }
            },
            {
                "name": "Z-axis translation",
                "value": -84.5,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8607
                }
            },
            {
                "name": "X-axis rotation",
                "value": 0,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8608
                }
            },
            {
                "name": "Y-axis rotation",
                "value": 0,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8609
                }
            },
            {
                "name": "Z-axis rotation",
                "value": 0.554,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8610
                }
            },
            {
                "name": "Scale difference",
                "value": 0.2263,
                "unit": {
                    "type": "ScaleUnit",
                    "name": "parts per million",
                    "conversion_factor": 1e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8611
                }
            }
        ]
    }
}

Definition: GeoServer

2541=PROJCS["Pulkovo 1942 / 3-degree Gauss-Kruger zone 25",GEOGCS["Pulkovo 1942",DATUM["Pulkovo_1942",SPHEROID["Krassowsky 1940",6378245,298.3],TOWGS84[27,-135,-84.5,0,0,0.554,0.2263]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4284"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",75],PARAMETER["scale_factor",1],PARAMETER["false_easting",25500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2541"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=0"
	"lon_0=75"
	"k=1"
	"x_0=25500000"
	"y_0=0"
	"ellps=krass"
	"towgs84=27,-135,-84.5,0,0,0.554,0.2263"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=0 +lon_0=75 +k=1 +x_0=25500000 +y_0=0 +ellps=krass +towgs84=27,-135,-84.5,0,0,0.554,0.2263 +units=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=0 +lon_0=75 +k=1 +x_0=25500000 +y_0=0 +ellps=krass +towgs84=27,-135,-84.5,0,0,0.554,0.2263 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 2541, 'EPSG', 2541, '+proj=tmerc +lat_0=0 +lon_0=75 +k=1 +x_0=25500000 +y_0=0 +ellps=krass +towgs84=27,-135,-84.5,0,0,0.554,0.2263 +units=m +no_defs +type=crs', 'PROJCS["Pulkovo 1942 / 3-degree Gauss-Kruger zone 25",GEOGCS["Pulkovo 1942",DATUM["Pulkovo_1942",SPHEROID["Krassowsky 1940",6378245,298.3],TOWGS84[27,-135,-84.5,0,0,0.554,0.2263]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4284"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",75],PARAMETER["scale_factor",1],PARAMETER["false_easting",25500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2541"]]');