Method: Coordinate Frame rotation (geog2D domain)
Remarks: Derived via PZ-90 at 30 stations throughout USSR (Former Soviet Union, FSU) through concatenation of Pulkovo 1942 to PZ-90 (1) (tfm code 15844) and PZ-90 to WGS 84 (1) (tfm code 15843).
Information source: Geodeziya i Katografiya, 1993.
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: Main Department of Navigation & Oceanography of the USSR Ministry of Defence.
Revision date: 2006-05-08
Scope: Hydrography and nautical charting.
Area of use: Azerbaijan - offshore; Kazakhstan - offshore; Russian Federation - Caspian Sea; Turkmenistan - offshore.
Coordinate system: Cartesian 2D CS. Axes: northing, easting (no abbrev). Orientations: north, east. UoM: m.
Center coordinates
4498857.28 5985297.91
Projected bounds:
-2603899.52 3094971.04
11601059.05 12543995.86
WGS84 bounds:
19.57 35.14
-168.97 81.91
Definition: Well Known Text (WKT)
PROJCS["Pulkovo 1942 / Caspian Sea Mercator", GEOGCS["Pulkovo 1942", DATUM["Pulkovo_1942", SPHEROID["Krassowsky 1940",6378245,298.3], TOWGS84[25,-141,-78.5,0,-0.35,-0.736,0]], PRIMEM["Greenwich",0], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4284"]], PROJECTION["Mercator_2SP"], PARAMETER["standard_parallel_1",42], PARAMETER["central_meridian",51], PARAMETER["false_easting",0], PARAMETER["false_northing",0], UNIT["metre",1], AUTHORITY["EPSG","3388"]]
Definition: ESRI WKT
PROJCS["Pulkovo_1942_Caspian_Sea_Mercator",GEOGCS["GCS_Pulkovo_1942",DATUM["D_Pulkovo_1942",SPHEROID["Krasovsky_1940",6378245.0,298.3]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",51.0],PARAMETER["Standard_Parallel_1",42.0],UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json", "type": "ProjectedCRS", "name": "Pulkovo 1942 / Caspian Sea Mercator", "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": "Caspian Sea Mercator", "method": { "name": "Mercator (variant B)", "id": { "authority": "EPSG", "code": 9805 } }, "parameters": [ { "name": "Latitude of 1st standard parallel", "value": 42, "unit": "degree", "id": { "authority": "EPSG", "code": 8823 } }, { "name": "Longitude of natural origin", "value": 51, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "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": "Northing", "abbreviation": "none", "direction": "north", "unit": "metre" }, { "name": "Easting", "abbreviation": "none", "direction": "east", "unit": "metre" } ] }, "scope": "Hydrography and nautical charting.", "area": "Azerbaijan - offshore; Kazakhstan - offshore; Russian Federation - Caspian Sea; Turkmenistan - offshore.", "bbox": { "south_latitude": 37.35, "west_longitude": 46.95, "north_latitude": 46.97, "east_longitude": 53.93 }, "id": { "authority": "EPSG", "code": 3388 } }
Definition: GeoServer
3388=PROJCS["Pulkovo 1942 / Caspian Sea Mercator",GEOGCS["Pulkovo 1942",DATUM["Pulkovo_1942",SPHEROID["Krassowsky 1940",6378245,298.3],TOWGS84[25,-141,-78.5,0,-0.35,-0.736,0]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4284"]],PROJECTION["Mercator_2SP"],PARAMETER["standard_parallel_1",42],PARAMETER["central_meridian",51],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1],AUTHORITY["EPSG","3388"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=merc +lat_ts=42 +lon_0=51 +x_0=0 +y_0=0 +ellps=krass +towgs84=25,-141,-78.5,0,-0.35,-0.736,0 +units=m +no_defs +type=crs"> <Layer srs="+proj=merc +lat_ts=42 +lon_0=51 +x_0=0 +y_0=0 +ellps=krass +towgs84=25,-141,-78.5,0,-0.35,-0.736,0 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 3388, 'EPSG', 3388, '+proj=merc +lat_ts=42 +lon_0=51 +x_0=0 +y_0=0 +ellps=krass +towgs84=25,-141,-78.5,0,-0.35,-0.736,0 +units=m +no_defs +type=crs', 'PROJCS["Pulkovo 1942 / Caspian Sea Mercator",GEOGCS["Pulkovo 1942",DATUM["Pulkovo_1942",SPHEROID["Krassowsky 1940",6378245,298.3],TOWGS84[25,-141,-78.5,0,-0.35,-0.736,0]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4284"]],PROJECTION["Mercator_2SP"],PARAMETER["standard_parallel_1",42],PARAMETER["central_meridian",51],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1],AUTHORITY["EPSG","3388"]]');
Definition: OGC WKT
PROJCS["Pulkovo 1942 / Caspian Sea Mercator",GEOGCS["Pulkovo 1942",DATUM["Pulkovo_1942",SPHEROID["Krassowsky 1940",6378245,298.3],TOWGS84[25,-141,-78.5,0,-0.35,-0.736,0]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4284"]],PROJECTION["Mercator_2SP"],PARAMETER["standard_parallel_1",42],PARAMETER["central_meridian",51],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1],AUTHORITY["EPSG","3388"]]
Definition: OGC WKT 2 (2019)
PROJCRS["Pulkovo 1942 / Caspian Sea Mercator",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["Caspian Sea Mercator",METHOD["Mercator (variant B)",ID["EPSG",9805]],PARAMETER["Latitude of 1st standard parallel",42,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8823]],PARAMETER["Longitude of natural origin",51,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["False easting",0,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False northing",0,LENGTHUNIT["metre",1],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["northing (none)",north,ORDER[1],LENGTHUNIT["metre",1]],AXIS["easting (none)",east,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Hydrography and nautical charting."],AREA["Azerbaijan - offshore; Kazakhstan - offshore; Russian Federation - Caspian Sea; Turkmenistan - offshore."],BBOX[37.35,46.95,46.97,53.93]],ID["EPSG",3388]]