Method: Position Vector transformation (geog2D domain)
Remarks: Mean of 3 stations in western Georgia, 4 stations in eastern Georgia and 4 stations in eastern Azerbaijan. Derived for use on AIOC early oil western export pipeline, but adopted for all AIOC work replacing the 1995 AIOC transformation (code 1807).
Information source: BP
Revision date: 2020-03-14
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 69E (code 2598).
Area of use: Kazakhstan, Kyrgyzstan, Russian Federation onshore, Tajikistan and Uzbekistan - between 67°30'E and 70°30'E.
Coordinate system: Cartesian 2D CS. Axes: northing, easting (X,Y). Orientations: north, east. UoM: m.
Center coordinates
21538758.12 4778081.66
Projected bounds:
20924591.63 4338934.77
22104611.48 5256300.21
WGS84 bounds:
39.99 37.89
51.73 43.59
Definition: OGC Well Known Text
PROJCS["Pulkovo 1942 / 3-degree Gauss-Kruger zone 23", GEOGCS["Pulkovo 1942", DATUM["Pulkovo_1942", SPHEROID["Krassowsky 1940",6378245,298.3], TOWGS84[686.1,-123.5,-574.4,8.045,-23.366,10.791,-2.926]], 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",69], PARAMETER["scale_factor",1], PARAMETER["false_easting",23500000], PARAMETER["false_northing",0], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AUTHORITY["EPSG","2539"]]
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["Pulkovo 1942 / 3-degree Gauss-Kruger zone 23", 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 23", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",69, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",23500000, 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, Tajikistan and Uzbekistan - between 67°30'E and 70°30'E."], BBOX[36.93,67.5,77.07,70.5]], ID["EPSG",2539]]], 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",686.1, ID["EPSG",8605]], PARAMETER["Y-axis translation",-123.5, ID["EPSG",8606]], PARAMETER["Z-axis translation",-574.4, ID["EPSG",8607]], PARAMETER["X-axis rotation",8.045, ID["EPSG",8608]], PARAMETER["Y-axis rotation",-23.366, ID["EPSG",8609]], PARAMETER["Z-axis rotation",10.791, ID["EPSG",8610]], PARAMETER["Scale difference",0.999997074, ID["EPSG",8611]]]]
Definition: ESRI Well Known Text
PROJCS["Pulkovo_1942_3_Degree_GK_Zone_23", 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",23500000.0], PARAMETER["False_Northing",0.0], PARAMETER["Central_Meridian",69.0], PARAMETER["Scale_Factor",1.0], PARAMETER["Latitude_Of_Origin",0.0], UNIT["Meter",1.0]]
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 23", "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 23", "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": 69, "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": 23500000, "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": 2539 } }, "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": 686.1, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": -123.5, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": -574.4, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": 8.045, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": -23.366, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": 10.791, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": -2.926, "unit": { "type": "ScaleUnit", "name": "parts per million", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8611 } } ] } }
Definition: GeoServer
2539=PROJCS["Pulkovo 1942 / 3-degree Gauss-Kruger zone 23",GEOGCS["Pulkovo 1942",DATUM["Pulkovo_1942",SPHEROID["Krassowsky 1940",6378245,298.3],TOWGS84[686.1,-123.5,-574.4,8.045,-23.366,10.791,-2.926]],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",69],PARAMETER["scale_factor",1],PARAMETER["false_easting",23500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2539"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=0 +lon_0=69 +k=1 +x_0=23500000 +y_0=0 +ellps=krass +towgs84=686.1,-123.5,-574.4,8.045,-23.366,10.791,-2.926 +units=m +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=0 +lon_0=69 +k=1 +x_0=23500000 +y_0=0 +ellps=krass +towgs84=686.1,-123.5,-574.4,8.045,-23.366,10.791,-2.926 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 2539, 'EPSG', 2539, '+proj=tmerc +lat_0=0 +lon_0=69 +k=1 +x_0=23500000 +y_0=0 +ellps=krass +towgs84=686.1,-123.5,-574.4,8.045,-23.366,10.791,-2.926 +units=m +no_defs +type=crs', 'PROJCS["Pulkovo 1942 / 3-degree Gauss-Kruger zone 23",GEOGCS["Pulkovo 1942",DATUM["Pulkovo_1942",SPHEROID["Krassowsky 1940",6378245,298.3],TOWGS84[686.1,-123.5,-574.4,8.045,-23.366,10.791,-2.926]],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",69],PARAMETER["scale_factor",1],PARAMETER["false_easting",23500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2539"]]');