EPSG:4291 DEPRECATED

Geodetic coordinate system

SAD69

Covered area

Center coordinates
-57.99953838 -21.57455744

WGS84 bounds:
-82.0 -56.15
-34.0 13.0

Selected transformation

South America

code 1212

(default)
3 parameters

Method: Geocentric translations (geog2D domain)

Remarks: Derived at 84 stations.

Information source: U.S. Defense Mapping Agency TR8350.2 September 1987.

Revision date: 1996-10-18

Attributes

Unit: degree minute second hemisphere

Geodetic CRS: SAD69

Datum: South American Datum 1969

Ellipsoid: GRS 1967

Prime meridian: Greenwich

Data source: OGP

Revision date: 1995-06-02

Scope: Geodetic survey. Recommended coordinate axis representation for the human interface.

Remarks: Uses GRS67 ellipsoid with 1/f to exactly 2 decimal places. Precision of ellipsoid entry increased from 2 to 5 dp with change id 97.251. Error introduced if not using the truncated precision is 0 to 31mm.

Method: Geocentric translations (geog2D domain)

Area of use: Brazil - onshore and offshore. In rest of South America - onshore north of approximately 45°S and Tierra del Fuego.

Coordinate system: Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: DMSH.

Definition: Well Known Text (WKT)

GEOGCS["SAD69",
    DATUM["South_American_Datum_1969",
        SPHEROID["GRS 1967",6378160,298.247167427,
            AUTHORITY["EPSG","7036"]],
        TOWGS84[-57,1,-41,0,0,0,0],
        AUTHORITY["EPSG","6291"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9108"]],
    AUTHORITY["EPSG","4291"]]
GEOGCS["SAD69",
    DATUM["South_American_Datum_1969",
        SPHEROID["GRS 1967",6378160,298.247167427,
            AUTHORITY["EPSG","7036"]],
        TOWGS84[-57,1,-41,0,0,0,0],
        AUTHORITY["EPSG","6291"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9108"]],
    AUTHORITY["EPSG","4291"]]

Definition: ESRI WKT

GEOGCS["SAD69",DATUM["D_South_American_1969",SPHEROID["GRS_1967",6378160,298.247167427]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]

Definition: PROJ.4

+proj=longlat +ellps=GRS67 +towgs84=-57,1,-41,0,0,0,0 +no_defs 

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:4291","+proj=longlat +ellps=GRS67 +towgs84=-57,1,-41,0,0,0,0 +no_defs");

Definition: OGC GML

<?xml version="1.0" encoding="UTF-8"?>
 <gml:GeodeticCRS xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="epsg-crs-4291">
   <gml:metaDataProperty>
      <epsg:CommonMetaData>
         <epsg:type>geographic 2D</epsg:type>
         <epsg:revisionDate>1995-06-02</epsg:revisionDate>
         <epsg:changes>
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::1997.252" />
         </epsg:changes>
         <epsg:show>true</epsg:show>
         <epsg:isDeprecated>true</epsg:isDeprecated>
      </epsg:CommonMetaData>
   </gml:metaDataProperty>
   <gml:identifier codeSpace="OGP">urn:ogc:def:crs:EPSG::4291</gml:identifier>
   <gml:name>SAD69</gml:name>
   <gml:remarks>Uses GRS67 ellipsoid with 1/f to exactly 2 decimal places. Precision of ellipsoid entry increased from 2 to 5 dp with change id 97.251. Error introduced if not using the truncated precision is 0 to 31mm.</gml:remarks>
   <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1358" />
   <gml:scope>Geodetic survey. Recommended coordinate axis representation for the human interface.</gml:scope>
   <gml:ellipsoidalCS xlink:href="urn:ogc:def:cs:EPSG::6402" />
   <gml:geodeticDatum xlink:href="urn:ogc:def:datum:EPSG::6291" />
</gml:GeodeticCRS>
<?xml version="1.0" encoding="UTF-8"?>
 <gml:GeodeticCRS xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="epsg-crs-4291">
   <gml:metaDataProperty>
      <epsg:CommonMetaData>
         <epsg:type>geographic 2D</epsg:type>
         <epsg:revisionDate>1995-06-02</epsg:revisionDate>
         <epsg:changes>
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::1997.252" />
         </epsg:changes>
         <epsg:show>true</epsg:show>
         <epsg:isDeprecated>true</epsg:isDeprecated>
      </epsg:CommonMetaData>
   </gml:metaDataProperty>
   <gml:identifier codeSpace="OGP">urn:ogc:def:crs:EPSG::4291</gml:identifier>
   <gml:name>SAD69</gml:name>
   <gml:remarks>Uses GRS67 ellipsoid with 1/f to exactly 2 decimal places. Precision of ellipsoid entry increased from 2 to 5 dp with change id 97.251. Error introduced if not using the truncated precision is 0 to 31mm.</gml:remarks>
   <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1358" />
   <gml:scope>Geodetic survey. Recommended coordinate axis representation for the human interface.</gml:scope>
   <gml:ellipsoidalCS xlink:href="urn:ogc:def:cs:EPSG::6402" />
   <gml:geodeticDatum xlink:href="urn:ogc:def:datum:EPSG::6291" />
</gml:GeodeticCRS>

Definition: XML

<?xml version="1.0" encoding="UTF-8"?>
 <gml:GeographicCRS gml:id="ogrcrs13266" xmlns:gml="http://www.opengis.net/gml/3.2">
  <gml:srsName>SAD69</gml:srsName>
  <gml:srsID>
    <gml:name gml:codeSpace="urn:ogc:def:crs:EPSG::">4291</gml:name>
  </gml:srsID>
  <gml:usesEllipsoidalCS>
    <gml:EllipsoidalCS gml:id="ogrcrs13267">
      <gml:csName>ellipsoidal</gml:csName>
      <gml:csID>
        <gml:name gml:codeSpace="urn:ogc:def:cs:EPSG::">6402</gml:name>
      </gml:csID>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs13268" gml:uom="urn:ogc:def:uom:EPSG::9102">
          <gml:name>Geodetic latitude</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9901</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>Lat</gml:axisAbbrev>
          <gml:axisDirection>north</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs13269" gml:uom="urn:ogc:def:uom:EPSG::9102">
          <gml:name>Geodetic longitude</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9902</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>Lon</gml:axisAbbrev>
          <gml:axisDirection>east</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
    </gml:EllipsoidalCS>
  </gml:usesEllipsoidalCS>
  <gml:usesGeodeticDatum>
    <gml:GeodeticDatum gml:id="ogrcrs13270">
      <gml:datumName>South_American_Datum_1969</gml:datumName>
      <gml:datumID>
        <gml:name gml:codeSpace="urn:ogc:def:datum:EPSG::">6291</gml:name>
      </gml:datumID>
      <gml:usesPrimeMeridian>
        <gml:PrimeMeridian gml:id="ogrcrs13271">
          <gml:meridianName>Greenwich</gml:meridianName>
          <gml:meridianID>
            <gml:name gml:codeSpace="urn:ogc:def:meridian:EPSG::">8901</gml:name>
          </gml:meridianID>
          <gml:greenwichLongitude>
            <gml:angle gml:uom="urn:ogc:def:uom:EPSG::9102">0</gml:angle>
          </gml:greenwichLongitude>
        </gml:PrimeMeridian>
      </gml:usesPrimeMeridian>
      <gml:usesEllipsoid>
        <gml:Ellipsoid gml:id="ogrcrs13272">
          <gml:ellipsoidName>GRS 1967</gml:ellipsoidName>
          <gml:ellipsoidID>
            <gml:name gml:codeSpace="urn:ogc:def:ellipsoid:EPSG::">7036</gml:name>
          </gml:ellipsoidID>
          <gml:semiMajorAxis gml:uom="urn:ogc:def:uom:EPSG::9001">6378160</gml:semiMajorAxis>
          <gml:secondDefiningParameter>
            <gml:inverseFlattening gml:uom="urn:ogc:def:uom:EPSG::9201">298.247167427</gml:inverseFlattening>
          </gml:secondDefiningParameter>
        </gml:Ellipsoid>
      </gml:usesEllipsoid>
    </gml:GeodeticDatum>
  </gml:usesGeodeticDatum>
</gml:GeographicCRS>
<?xml version="1.0" encoding="UTF-8"?>
 <gml:GeographicCRS gml:id="ogrcrs13266" xmlns:gml="http://www.opengis.net/gml/3.2">
  <gml:srsName>SAD69</gml:srsName>
  <gml:srsID>
    <gml:name gml:codeSpace="urn:ogc:def:crs:EPSG::">4291</gml:name>
  </gml:srsID>
  <gml:usesEllipsoidalCS>
    <gml:EllipsoidalCS gml:id="ogrcrs13267">
      <gml:csName>ellipsoidal</gml:csName>
      <gml:csID>
        <gml:name gml:codeSpace="urn:ogc:def:cs:EPSG::">6402</gml:name>
      </gml:csID>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs13268" gml:uom="urn:ogc:def:uom:EPSG::9102">
          <gml:name>Geodetic latitude</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9901</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>Lat</gml:axisAbbrev>
          <gml:axisDirection>north</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs13269" gml:uom="urn:ogc:def:uom:EPSG::9102">
          <gml:name>Geodetic longitude</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9902</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>Lon</gml:axisAbbrev>
          <gml:axisDirection>east</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
    </gml:EllipsoidalCS>
  </gml:usesEllipsoidalCS>
  <gml:usesGeodeticDatum>
    <gml:GeodeticDatum gml:id="ogrcrs13270">
      <gml:datumName>South_American_Datum_1969</gml:datumName>
      <gml:datumID>
        <gml:name gml:codeSpace="urn:ogc:def:datum:EPSG::">6291</gml:name>
      </gml:datumID>
      <gml:usesPrimeMeridian>
        <gml:PrimeMeridian gml:id="ogrcrs13271">
          <gml:meridianName>Greenwich</gml:meridianName>
          <gml:meridianID>
            <gml:name gml:codeSpace="urn:ogc:def:meridian:EPSG::">8901</gml:name>
          </gml:meridianID>
          <gml:greenwichLongitude>
            <gml:angle gml:uom="urn:ogc:def:uom:EPSG::9102">0</gml:angle>
          </gml:greenwichLongitude>
        </gml:PrimeMeridian>
      </gml:usesPrimeMeridian>
      <gml:usesEllipsoid>
        <gml:Ellipsoid gml:id="ogrcrs13272">
          <gml:ellipsoidName>GRS 1967</gml:ellipsoidName>
          <gml:ellipsoidID>
            <gml:name gml:codeSpace="urn:ogc:def:ellipsoid:EPSG::">7036</gml:name>
          </gml:ellipsoidID>
          <gml:semiMajorAxis gml:uom="urn:ogc:def:uom:EPSG::9001">6378160</gml:semiMajorAxis>
          <gml:secondDefiningParameter>
            <gml:inverseFlattening gml:uom="urn:ogc:def:uom:EPSG::9201">298.247167427</gml:inverseFlattening>
          </gml:secondDefiningParameter>
        </gml:Ellipsoid>
      </gml:usesEllipsoid>
    </gml:GeodeticDatum>
  </gml:usesGeodeticDatum>
</gml:GeographicCRS>

Definition: GeoServer

4291=GEOGCS["SAD69",DATUM["South_American_Datum_1969",SPHEROID["GRS 1967",6378160,298.247167427,AUTHORITY["EPSG","7036"]],TOWGS84[-57,1,-41,0,0,0,0],AUTHORITY["EPSG","6291"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9108"]],AUTHORITY["EPSG","4291"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=GRS67"
	"towgs84=-57,1,-41,0,0,0,0"
	"no_defs"
END

Definition: MapServer - Python

wkt = '''GEOGCS["SAD69",DATUM["South_American_Datum_1969",SPHEROID["GRS 1967",6378160,298.247167427,AUTHORITY["EPSG","7036"]],TOWGS84[-57,1,-41,0,0,0,0],AUTHORITY["EPSG","6291"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9108"]],AUTHORITY["EPSG","4291"]]'''
m = mapObj('')
m.setWKTProjection(ref.ExportToWkt())
lyr = layerObj(m)
lyr.setWKTProjection(ref.ExportToWkt())

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=GRS67 +towgs84=-57,1,-41,0,0,0,0 +no_defs">
	<Layer srs="+proj=longlat +ellps=GRS67 +towgs84=-57,1,-41,0,0,0,0 +no_defs">
	</Layer>
</Map>

Definition: Mapnik - Python

proj4 = '+proj=longlat +ellps=GRS67 +towgs84=-57,1,-41,0,0,0,0 +no_defs'
m = Map(256,256,proj4)
lyr = Layer('Name',proj4)

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4291, 'EPSG', 4291, '+proj=longlat +ellps=GRS67 +towgs84=-57,1,-41,0,0,0,0 +no_defs ', 'GEOGCS["SAD69",DATUM["South_American_Datum_1969",SPHEROID["GRS 1967",6378160,298.247167427,AUTHORITY["EPSG","7036"]],TOWGS84[-57,1,-41,0,0,0,0],AUTHORITY["EPSG","6291"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9108"]],AUTHORITY["EPSG","4291"]]');

Definition: OGC WKT

GEOGCS["SAD69",DATUM["South_American_Datum_1969",SPHEROID["GRS 1967",6378160,298.247167427,AUTHORITY["EPSG","7036"]],TOWGS84[-57,1,-41,0,0,0,0],AUTHORITY["EPSG","6291"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9108"]],AUTHORITY["EPSG","4291"]]