EPSG:28421 — Pulkovo 1942 / Gauss-Kruger zone 21

Projected · Russia - 120°E to 126°E onshore

Export Formats

OGC WKT

PROJCS[
    "Pulkovo 1942 / Gauss-Kruger zone 21",
    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["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",123],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",21500000],
    PARAMETER["false_northing",0],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AUTHORITY["EPSG","28421"]
]

WKT2

PROJCRS[
    "Pulkovo 1942 / Gauss-Kruger zone 21",
    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[
        "6-degree Gauss-Kruger zone 21",
        METHOD["Transverse Mercator",ID["EPSG",9807]],
        PARAMETER[
            "Latitude of natural origin",
            0,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8801]
        ],
        PARAMETER[
            "Longitude of natural origin",
            123,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "Scale factor at natural origin",
            1,
            SCALEUNIT["unity",1,ID["EPSG",9201]],
            ID["EPSG",8805]
        ],
        PARAMETER[
            "False easting",
            21500000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",16221]
    ],
    CS[Cartesian,2,ID["EPSG",4530]],
    AXIS["Northing (X)",north],
    AXIS["Easting (Y)",east],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",28421]
]

PROJ.4

+proj=tmerc +lat_0=0 +lon_0=123 +k=1 +x_0=21500000 +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:28421", "+proj=tmerc +lat_0=0 +lon_0=123 +k=1 +x_0=21500000 +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": 28421,
  "name": "Pulkovo 1942 / Gauss-Kruger zone 21",
  "kind": "projected",
  "area": "Russia - 120°E to 126°E onshore",
  "unit": "metre",
  "bbox": [
    51.51,
    120,
    74,
    126
  ],
  "proj4": "+proj=tmerc +lat_0=0 +lon_0=123 +k=1 +x_0=21500000 +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 (28421, 'EPSG', 28421, '+proj=tmerc +lat_0=0 +lon_0=123 +k=1 +x_0=21500000 +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 / Gauss-Kruger zone 21",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["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",123],PARAMETER["scale_factor",1],PARAMETER["false_easting",21500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","28421"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=tmerc"
  "+lat_0=0"
  "+lon_0=123"
  "+k=1"
  "+x_0=21500000"
  "+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? →

28421=PROJCS["Pulkovo 1942 / Gauss-Kruger zone 21",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["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",123],PARAMETER["scale_factor",1],PARAMETER["false_easting",21500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","28421"]]

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:28421 to GeoServer?

Add the following definition to your GeoServer configuration:

28421=PROJCS["Pulkovo 1942 / Gauss-Kruger zone 21",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["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",123],PARAMETER["scale_factor",1],PARAMETER["false_easting",21500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","28421"]]

Read the full GeoServer guide →

How do I add EPSG:28421 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (28421, 'EPSG', 28421, '+proj=tmerc +lat_0=0 +lon_0=123 +k=1 +x_0=21500000 +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 / Gauss-Kruger zone 21",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["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",123],PARAMETER["scale_factor",1],PARAMETER["false_easting",21500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","28421"]]');

Read the full PostGIS guide →

How do I add EPSG:28421 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=tmerc"
  "+lat_0=0"
  "+lon_0=123"
  "+k=1"
  "+x_0=21500000"
  "+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:28421 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:28421", "+proj=tmerc +lat_0=0 +lon_0=123 +k=1 +x_0=21500000 +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 →