EPSG:22521 — Corrego Alegre 1970-72 / UTM zone 21S

Projected · Brazil - west of 54°W and south of 18°S

Export Formats

OGC WKT

PROJCS[
    "Corrego Alegre 1970-72 / UTM zone 21S",
    GEOGCS[
        "Corrego Alegre 1970-72",
        DATUM[
            "Corrego_Alegre_1970-72",
            SPHEROID["International 1924",6378388,297],
            EXTENSION["PROJ4_GRIDS","CA7072_003.gsb"]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4225"]
    ],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",-57],
    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","22521"]
]

WKT2

PROJCRS[
    "Corrego Alegre 1970-72 / UTM zone 21S",
    BASEGEOGCRS[
        "Corrego Alegre 1970-72",
        DATUM[
            "Corrego Alegre 1970-72",
            ELLIPSOID[
                "International 1924",
                6378388,
                297,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7022]
            ],
            ID["EPSG",6225]
        ],
        ID["EPSG",4225]
    ],
    CONVERSION[
        "UTM zone 21S",
        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",
            -57,
            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",16121]
    ],
    CS[Cartesian,2,ID["EPSG",4400]],
    AXIS["Easting (E)",east],
    AXIS["Northing (N)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",22521]
]

PROJ.4

+proj=utm +zone=21 +south +ellps=intl +nadgrids=CA7072_003.gsb +units=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:22521", "+proj=utm +zone=21 +south +ellps=intl +nadgrids=CA7072_003.gsb +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 22521,
  "name": "Corrego Alegre 1970-72 / UTM zone 21S",
  "kind": "projected",
  "area": "Brazil - west of 54°W and south of 18°S",
  "unit": "metre",
  "bbox": [
    -31.91,
    -58.16,
    -17.99,
    -54
  ],
  "proj4": "+proj=utm +zone=21 +south +ellps=intl +nadgrids=CA7072_003.gsb +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 (22521, 'EPSG', 22521, '+proj=utm +zone=21 +south +ellps=intl +nadgrids=CA7072_003.gsb +units=m +no_defs +type=crs', 'PROJCS["Corrego Alegre 1970-72 / UTM zone 21S",GEOGCS["Corrego Alegre 1970-72",DATUM["Corrego_Alegre_1970-72",SPHEROID["International 1924",6378388,297],EXTENSION["PROJ4_GRIDS","CA7072_003.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4225"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-57],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","22521"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=utm"
  "+zone=21"
  "+south"
  "+ellps=intl"
  "+nadgrids=CA7072_003.gsb"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

22521=PROJCS["Corrego Alegre 1970-72 / UTM zone 21S",GEOGCS["Corrego Alegre 1970-72",DATUM["Corrego_Alegre_1970-72",SPHEROID["International 1924",6378388,297],EXTENSION["PROJ4_GRIDS","CA7072_003.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4225"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-57],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","22521"]]

Related Coordinate Systems

Available Transformations (7)

Transformations inherited from base CRS: EPSG:4225 (Corrego Alegre 1970-72)

Transformation	Source → Target	Accuracy (m)
Corrego Alegre 1970-72 to SIRGAS 2000 (1)	4225 → 4674	2
Corrego Alegre 1970-72 to WGS 84 (2)	4225 → 4326	2
Corrego Alegre 1970-72 to SAD69 (1)	4225 → 4618	5
Corrego Alegre 1970-72 to WGS 84 (3)	4225 → 4326	5
Corrego Alegre 1970-72 to SIRGAS 2000 (2)	4225 → 4674	5
Corrego Alegre 1970-72 to WGS 84 (4)	4225 → 4326	5
Corrego Alegre 1970-72 to WGS 84 (1)	4225 → 4326	8

Other CRS using Corrego Alegre 1970-72

Frequently Asked Questions

How do I add EPSG:22521 to GeoServer?

Add the following definition to your GeoServer configuration:

22521=PROJCS["Corrego Alegre 1970-72 / UTM zone 21S",GEOGCS["Corrego Alegre 1970-72",DATUM["Corrego_Alegre_1970-72",SPHEROID["International 1924",6378388,297],EXTENSION["PROJ4_GRIDS","CA7072_003.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4225"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-57],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","22521"]]

Read the full GeoServer guide →

How do I add EPSG:22521 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (22521, 'EPSG', 22521, '+proj=utm +zone=21 +south +ellps=intl +nadgrids=CA7072_003.gsb +units=m +no_defs +type=crs', 'PROJCS["Corrego Alegre 1970-72 / UTM zone 21S",GEOGCS["Corrego Alegre 1970-72",DATUM["Corrego_Alegre_1970-72",SPHEROID["International 1924",6378388,297],EXTENSION["PROJ4_GRIDS","CA7072_003.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4225"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-57],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","22521"]]');

Read the full PostGIS guide →

How do I add EPSG:22521 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=utm"
  "+zone=21"
  "+south"
  "+ellps=intl"
  "+nadgrids=CA7072_003.gsb"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:22521 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:22521", "+proj=utm +zone=21 +south +ellps=intl +nadgrids=CA7072_003.gsb +units=m +no_defs +type=crs");

Read the full Proj4js guide →