EPSG:4559 — RRAF 1991 / UTM zone 20N

Projected · Caribbean - French Antilles west of 60°W

Export Formats

OGC WKT

PROJCS[
    "RRAF 1991 / UTM zone 20N",
    GEOGCS[
        "RRAF 1991",
        DATUM[
            "Reseau_de_Reference_des_Antilles_Francaises_1991",
            SPHEROID["GRS 1980",6378137,298.257222101],
            TOWGS84[0,0,0,0,0,0,0]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4558"]
    ],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",-63],
    PARAMETER["scale_factor",0.9996],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",0],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","4559"]
]

WKT2

PROJCRS[
    "RRAF 1991 / UTM zone 20N",
    BASEGEOGCRS[
        "RRAF 1991",
        DATUM[
            "Reseau de Reference des Antilles Francaises 1991",
            ELLIPSOID[
                "GRS 1980",
                6378137,
                298.257222101,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7019]
            ],
            ID["EPSG",1047]
        ],
        ID["EPSG",4558]
    ],
    CONVERSION[
        "UTM zone 20N",
        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",
            -63,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "Scale factor at natural origin",
            0.9996,
            SCALEUNIT["unity",1,ID["EPSG",9201]],
            ID["EPSG",8805]
        ],
        PARAMETER[
            "False easting",
            500000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",16020]
    ],
    CS[Cartesian,2,ID["EPSG",4400]],
    AXIS["Easting (E)",east],
    AXIS["Northing (N)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",4559]
]

PROJ.4

+proj=utm +zone=20 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:4559", "+proj=utm +zone=20 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 4559,
  "name": "RRAF 1991 / UTM zone 20N",
  "kind": "projected",
  "area": "Caribbean - French Antilles west of 60°W",
  "unit": "metre",
  "bbox": [
    14.08,
    -63.66,
    18.32,
    -60
  ],
  "proj4": "+proj=utm +zone=20 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +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 (4559, 'EPSG', 4559, '+proj=utm +zone=20 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["RRAF 1991 / UTM zone 20N",GEOGCS["RRAF 1991",DATUM["Reseau_de_Reference_des_Antilles_Francaises_1991",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4558"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-63],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","4559"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=utm"
  "+zone=20"
  "+ellps=GRS80"
  "+towgs84=0,0,0,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

4559=PROJCS["RRAF 1991 / UTM zone 20N",GEOGCS["RRAF 1991",DATUM["Reseau_de_Reference_des_Antilles_Francaises_1991",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4558"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-63],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","4559"]]

Related Coordinate Systems

Available Transformations (4)

Transformations inherited from base CRS: EPSG:4558 (RRAF 1991)

Transformation	Source → Target	Accuracy (m)
RRAF 1991 to RGAF09 (1)	4558 → 5489	0.1
RRAF 1991 to RGAF09 (2)	4558 → 5489	0.1
RRAF 1991 to RGAF09 (3)	4558 → 5489	0.1
RRAF 1991 to WGS 84 (1)	4558 → 4326	1

Other CRS using Reseau de Reference des Antilles Francaises 1991

Frequently Asked Questions

How do I add EPSG:4559 to GeoServer?

Add the following definition to your GeoServer configuration:

4559=PROJCS["RRAF 1991 / UTM zone 20N",GEOGCS["RRAF 1991",DATUM["Reseau_de_Reference_des_Antilles_Francaises_1991",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4558"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-63],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","4559"]]

Read the full GeoServer guide →

How do I add EPSG:4559 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4559, 'EPSG', 4559, '+proj=utm +zone=20 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["RRAF 1991 / UTM zone 20N",GEOGCS["RRAF 1991",DATUM["Reseau_de_Reference_des_Antilles_Francaises_1991",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4558"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-63],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","4559"]]');

Read the full PostGIS guide →

How do I add EPSG:4559 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=utm"
  "+zone=20"
  "+ellps=GRS80"
  "+towgs84=0,0,0,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:4559 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:4559", "+proj=utm +zone=20 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs");

Read the full Proj4js guide →

Type

Projected

Unit

metre

Geodetic CRS

RRAF 1991

Datum

Reseau de Reference des Antilles Francaises 1991

Ellipsoid

GRS 1980

Prime Meridian

Greenwich

Area of Use

Caribbean - French Antilles west of 60°W

French Antilles onshore and offshore west of 60°W - Guadeloupe (including Grande Terre, Basse Terre,…

Coordinate System

Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.

Center Coordinates

625062.25 1791414.75

Projected Bounds

2028201.01 428749.41817127.17 1556673.78

WGS84 Bounds

18.32 -63.66-60.00 14.08

Data Source

EPSG

Information Source

IGN Paris

Revision Date

2011-05-09

Scope

Engineering survey, topographic mapping.

Remarks

Replaces Sainte Anne / UTM zone 20N and Fort Marigot / UTM zone 20N (CRS codes 2969-70) in Guadeloupe and Fort Desaix / UTM zone 20N (CRS code 2973) in Martinique. Replaced by RGAF09 / UTM zone 20N (CRS code 5490).

EPSG

4559