EPSG:4209 — Arc 1950

Geographic 2D · Africa - Botswana, Malawi, Zambia, Zimbabwe

Export Formats

OGC WKT

GEOGCS[
    "Arc 1950",
    DATUM[
        "Arc_1950",
        SPHEROID["Clarke 1880 (Arc)",6378249.145,293.4663077],
        TOWGS84[-143,-90,-294,0,0,0,0]
    ],
    PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4209"]
]

WKT2

GEOGCRS[
    "Arc 1950",
    DATUM[
        "Arc 1950",
        ELLIPSOID[
            "Clarke 1880 (Arc)",
            6378249.145,
            293.4663077,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",7013]
        ],
        ID["EPSG",6209]
    ],
    CS[ellipsoidal,2,ID["EPSG",6422]],
    AXIS["Geodetic latitude (Lat)",north],
    AXIS["Geodetic longitude (Lon)",east],
    ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
    ID["EPSG",4209]
]

PROJ.4

+proj=longlat +a=6378249.145 +rf=293.4663077 +towgs84=-143,-90,-294,0,0,0,0 +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:4209", "+proj=longlat +a=6378249.145 +rf=293.4663077 +towgs84=-143,-90,-294,0,0,0,0 +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 4209,
  "name": "Arc 1950",
  "kind": "geographic 2D",
  "area": "Africa - Botswana, Malawi, Zambia, Zimbabwe",
  "unit": "degree (supplier to define representation)",
  "bbox": [
    -26.88,
    19.99,
    -8.19,
    35.93
  ],
  "proj4": "+proj=longlat +a=6378249.145 +rf=293.4663077 +towgs84=-143,-90,-294,0,0,0,0 +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 (4209, 'EPSG', 4209, '+proj=longlat +a=6378249.145 +rf=293.4663077 +towgs84=-143,-90,-294,0,0,0,0 +no_defs +type=crs', 'GEOGCS["Arc 1950",DATUM["Arc_1950",SPHEROID["Clarke 1880 (Arc)",6378249.145,293.4663077],TOWGS84[-143,-90,-294,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4209"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=longlat"
  "+a=6378249.145"
  "+rf=293.4663077"
  "+towgs84=-143,-90,-294,0,0,0,0"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

4209=GEOGCS["Arc 1950",DATUM["Arc_1950",SPHEROID["Clarke 1880 (Arc)",6378249.145,293.4663077],TOWGS84[-143,-90,-294,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4209"]]

Related Coordinate Systems

Available Transformations (11)

Transformation	Source → Target	Accuracy (m)
Arc 1950 to WGS 84 (2)	4209 → 4326	7
Arc 1950 to WGS 84 (4)	4209 → 4326	10
Arc 1950 to WGS 84 (9)	4209 → 4326	15
Arc 1950 to WGS 84 (10)	4209 → 4326	17
Arc 1950 to WGS 84 (6)	4209 → 4326	26
Arc 1950 to WGS 84 (5)	4209 → 4326	27
Arc 1950 to WGS 84 (11)	4209 → 4326	29
Arc 1950 to WGS 84 (8)	4209 → 4326	41
Arc 1950 to WGS 84 (1)	4209 → 4326	44
Arc 1950 to WGS 84 (3) Deprecated	4209 → 4326	35

Other CRS using Arc 1950

Frequently Asked Questions

How do I add EPSG:4209 to GeoServer?

Add the following definition to your GeoServer configuration:

4209=GEOGCS["Arc 1950",DATUM["Arc_1950",SPHEROID["Clarke 1880 (Arc)",6378249.145,293.4663077],TOWGS84[-143,-90,-294,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4209"]]

Read the full GeoServer guide →

How do I add EPSG:4209 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4209, 'EPSG', 4209, '+proj=longlat +a=6378249.145 +rf=293.4663077 +towgs84=-143,-90,-294,0,0,0,0 +no_defs +type=crs', 'GEOGCS["Arc 1950",DATUM["Arc_1950",SPHEROID["Clarke 1880 (Arc)",6378249.145,293.4663077],TOWGS84[-143,-90,-294,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4209"]]');

Read the full PostGIS guide →

How do I add EPSG:4209 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=longlat"
  "+a=6378249.145"
  "+rf=293.4663077"
  "+towgs84=-143,-90,-294,0,0,0,0"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:4209 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:4209", "+proj=longlat +a=6378249.145 +rf=293.4663077 +towgs84=-143,-90,-294,0,0,0,0 +no_defs +type=crs");

Read the full Proj4js guide →