EPSG:3388 — Pulkovo 1942 / Caspian Sea Mercator

Projected · Asia - FSU - Caspian Sea

Export Formats

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,AUTHORITY["EPSG","8901"]],
        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","9001"]],
    AUTHORITY["EPSG","3388"]
]

WKT2

PROJCRS[
    "Pulkovo 1942 / Caspian Sea Mercator",
    BASEGEOGCRS[
        "Pulkovo 1942",
        DATUM[
            "Pulkovo 1942",
            ELLIPSOID[
                "Krassowsky 1940",
                6378245,
                298.3,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7024]
            ],
            ID["EPSG",6284]
        ],
        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",9102]],
            ID["EPSG",8823]
        ],
        PARAMETER[
            "Longitude of natural origin",
            51,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "False easting",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",19884]
    ],
    CS[Cartesian,2,ID["EPSG",4534]],
    AXIS["Northing (none)",north],
    AXIS["Easting (none)",east],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",3388]
]

PROJ.4

+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

Proj4js

How to add a projection to Proj4js? →

proj4.defs("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");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 3388,
  "name": "Pulkovo 1942 / Caspian Sea Mercator",
  "kind": "projected",
  "area": "Asia - FSU - Caspian Sea",
  "unit": "metre",
  "bbox": [
    37.35,
    46.95,
    46.97,
    53.93
  ],
  "proj4": "+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"
}

PostGIS

How to add a projection to 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,AUTHORITY["EPSG","8901"]],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","9001"]],AUTHORITY["EPSG","3388"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+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"
END

GeoServer

How to add a projection to 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,AUTHORITY["EPSG","8901"]],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","9001"]],AUTHORITY["EPSG","3388"]]

Related Coordinate Systems

Available Transformations (28)

Transformations inherited from base CRS: EPSG:4284 (Pulkovo 1942)

Transformation	Source → Target	Accuracy (m)
Pulkovo 1942 to Georgia Geodetic Datum (1)	4284 → 10831	0.1
Pulkovo 1942 to QazTRF-23 (1)	4284 → 10941	0.1
Pulkovo 1942 to WGS 84 (10)	4284 → 4326	2
Pulkovo 1942 to WGS 84 (15)	4284 → 4326	2
Pulkovo 1942 to WGS 84 (20)	4284 → 4326	3
Pulkovo 1942 to UCS-2000 (1)	4284 → 5561	3.5
Pulkovo 1942 to WGS 84 (17)	4284 → 4326	4
Pulkovo 1942 to WGS 84 (6)	4284 → 4326	4
Pulkovo 1942 to PZ-90 (1)	4284 → 4740	4
Pulkovo 1942 to WGS 84 (16)	4284 → 4326	4.5

Other CRS using Pulkovo 1942 (192)

Frequently Asked Questions

How do I add EPSG:3388 to GeoServer?

Add the following definition to your GeoServer configuration:

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,AUTHORITY["EPSG","8901"]],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","9001"]],AUTHORITY["EPSG","3388"]]

Read the full GeoServer guide →

How do I add EPSG:3388 to PostGIS?

Add the following definition to your PostGIS configuration:

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,AUTHORITY["EPSG","8901"]],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","9001"]],AUTHORITY["EPSG","3388"]]');

Read the full PostGIS guide →

How do I add EPSG:3388 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+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"
END

Read the full MapServer guide →

How do I use EPSG:3388 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("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");

Read the full Proj4js guide →

Type

Projected

Unit

metre

Geodetic CRS

Pulkovo 1942

Datum

Pulkovo 1942

Ellipsoid

Krassowsky 1940

Prime Meridian

Greenwich

Area of Use

Asia - FSU - Caspian Sea

Azerbaijan - offshore; Kazakhstan - offshore; Russian Federation - Caspian Sea; Turkmenistan - offsh…

Coordinate System

Cartesian 2D CS. Axes: northing, easting (no abbrev). Orientations: north, east. UoM: m.

Center Coordinates

-46276.50 3837678.76

Projected Bounds

4395599.63 -335431.63242879.18 3321010.88

WGS84 Bounds

46.97 46.9553.93 37.35

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.

EPSG

3388