EPSG:4471 — RGM04 / UTM zone 38S

Projected · Mayotte

Export Formats

OGC WKT

PROJCS[
    "RGM04 / UTM zone 38S",
    GEOGCS[
        "RGM04",
        DATUM[
            "Reseau_Geodesique_de_Mayotte_2004",
            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","4470"]
    ],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",45],
    PARAMETER["scale_factor",0.9996],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",10000000],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","4471"]
]

WKT2

PROJCRS[
    "RGM04 / UTM zone 38S",
    BASEGEOGCRS[
        "RGM04",
        DATUM[
            "Reseau Geodesique de Mayotte 2004",
            ELLIPSOID[
                "GRS 1980",
                6378137,
                298.257222101,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7019]
            ],
            ID["EPSG",1036]
        ],
        ID["EPSG",4470]
    ],
    CONVERSION[
        "UTM zone 38S",
        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",
            45,
            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",
            10000000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",16138]
    ],
    CS[Cartesian,2,ID["EPSG",4400]],
    AXIS["Easting (E)",east],
    AXIS["Northing (N)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",4471]
]

PROJ.4

+proj=utm +zone=38 +south +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:4471", "+proj=utm +zone=38 +south +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 4471,
  "name": "RGM04 / UTM zone 38S",
  "kind": "projected",
  "area": "Mayotte",
  "unit": "metre",
  "bbox": [
    -14.49,
    43.68,
    -11.33,
    46.7
  ],
  "proj4": "+proj=utm +zone=38 +south +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 (4471, 'EPSG', 4471, '+proj=utm +zone=38 +south +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["RGM04 / UTM zone 38S",GEOGCS["RGM04",DATUM["Reseau_Geodesique_de_Mayotte_2004",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","4470"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",45],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","4471"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=utm"
  "+zone=38"
  "+south"
  "+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? →

4471=PROJCS["RGM04 / UTM zone 38S",GEOGCS["RGM04",DATUM["Reseau_Geodesique_de_Mayotte_2004",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","4470"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",45],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","4471"]]

Related Coordinate Systems

Available Transformations (5)

Transformations inherited from base CRS: EPSG:4470 (RGM04)

Transformation	Source → Target	Accuracy (m)
RGM04 to RGM23 (2)	4470 → 10671	0.05
Cadastre 1997 to RGM04 (1)	4475 → 4470	0.1
RGM04 to RGM23 (1)	4470 → 10671	0.1
Combani 1950 to RGM04 (1)	4632 → 4470	0.3
RGM04 to WGS 84 (1)	4470 → 4326	1

Other CRS for YT

Other CRS using Reseau Geodesique de Mayotte 2004

Frequently Asked Questions

How do I add EPSG:4471 to GeoServer?

Add the following definition to your GeoServer configuration:

4471=PROJCS["RGM04 / UTM zone 38S",GEOGCS["RGM04",DATUM["Reseau_Geodesique_de_Mayotte_2004",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","4470"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",45],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","4471"]]

Read the full GeoServer guide →

How do I add EPSG:4471 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4471, 'EPSG', 4471, '+proj=utm +zone=38 +south +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["RGM04 / UTM zone 38S",GEOGCS["RGM04",DATUM["Reseau_Geodesique_de_Mayotte_2004",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","4470"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",45],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","4471"]]');

Read the full PostGIS guide →

How do I add EPSG:4471 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=utm"
  "+zone=38"
  "+south"
  "+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:4471 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:4471", "+proj=utm +zone=38 +south +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

RGM04

Datum

Reseau Geodesique de Mayotte 2004

Ellipsoid

GRS 1980

Prime Meridian

Greenwich

Area of Use

Mayotte

Mayotte - onshore and offshore.

Coordinate System

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

Center Coordinates

520611.29 8572809.37

Projected Bounds

8746991.06 357748.31685530.19 8397670.97

WGS84 Bounds

-11.33 43.6846.70 -14.49

Data Source

EPSG

Information Source

IGN Paris

Revision Date

2024-10-29

Scope

Engineering survey, topographic mapping.

Remarks

Replaces Combani 1950 / UTM zone 38S (CRS code 2980) except for cadastre which uses Cadastre 1997 / UTM zone 38S (CRS code 5879). Replaced by RGM23 / UTM zone 38S (CRS code 10674) with effect from 2023-01-01 except for cadastre.

Country Code

EPSG

4471