EPSG:4710

Astro DOS 71

Available transformations

Selected transformation

Method: Geocentric translations (geog2D domain)

Remarks: Derived at 1 satellite station.

Information source: DMA / NIMA / NGA TR8350.2 (3rd edition, Amendment 1, 3 January 2000)

Revision date: 2016-12-15

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: Astro DOS 71

Datum: Astro DOS 71

Ellipsoid: International 1924

Prime meridian: Greenwich

Data source: OGP

Information source: DMA / NIMA / NGA TR8350.2 (3rd edition, Amendment 1, 3 January 2000) and St. Helena Government, Environment and Natural Resources Directorate (ENRD).

Revision date: 2016-12-15

Scope: Geodetic control, military and topographic mapping.

Remarks: Used between 1972 and 2015. Replaced by SHGD2015 (CRS code 7886) from 2015.

Method: Geocentric translations (geog2D domain)

Area of use: St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore.

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

Center coordinates
-5.71981415 -15.96021587

WGS84 bounds:
-5.85 -16.08
-5.58 -15.85

St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore.
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Definition: Well Known Text (WKT)

GEOGCS["St. Helena 1971",
    DATUM["St_Helena_1971",
        SPHEROID["International 1924",6378388,297,
            AUTHORITY["EPSG","7022"]],
        TOWGS84[-320,550,-494,0,0,0,0],
        AUTHORITY["EPSG","6710"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4710"]]
GEOGCS["St. Helena 1971",
    DATUM["St_Helena_1971",
        SPHEROID["International 1924",6378388,297,
            AUTHORITY["EPSG","7022"]],
        TOWGS84[-320,550,-494,0,0,0,0],
        AUTHORITY["EPSG","6710"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4710"]]

Definition: ESRI WKT

GEOGCS["St. Helena 1971",DATUM["D_St_Helena_1971",SPHEROID["International_1924",6378388,297]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]

Definition: PROJ.4

+proj=longlat +ellps=intl +towgs84=-320,550,-494,0,0,0,0 +no_defs 

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:4710","+proj=longlat +ellps=intl +towgs84=-320,550,-494,0,0,0,0 +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="iogp-crs-4710">
  <gml:metaDataProperty>
    <epsg:CommonMetaData>
      <epsg:type>geographic 2D</epsg:type>
      <epsg:alias alias="ASTRO DOS 71/4" code="7187" codeSpace="urn:ogc:def:naming-system:EPSG::7301" />
      <epsg:alias alias="St. Helena 1971" code="7188" codeSpace="urn:ogc:def:naming-system:EPSG::7301" />
      <epsg:informationSource>DMA / NIMA / NGA TR8350.2 (3rd edition, Amendment 1, 3 January 2000) and St. Helena Government, Environment and Natural Resources Directorate (ENRD).</epsg:informationSource>
      <epsg:revisionDate>2016-12-15</epsg:revisionDate>
      <epsg:changes>
        <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2016.038" />
      </epsg:changes>
      <epsg:show>true</epsg:show>
      <epsg:isDeprecated>false</epsg:isDeprecated>
    </epsg:CommonMetaData>
  </gml:metaDataProperty>
  <gml:identifier codeSpace="IOGP">urn:ogc:def:crs:EPSG::4710</gml:identifier>
  <gml:name>Astro DOS 71</gml:name>
  <gml:remarks>Used between 1972 and 2015. Replaced by SHGD2015 (CRS code 7886) from 2015.</gml:remarks>
  <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::3183" />
  <gml:scope>Geodetic control, military and topographic mapping.</gml:scope>
  <gml:ellipsoidalCS xlink:href="urn:ogc:def:cs:EPSG::6422" />
  <gml:geodeticDatum xlink:href="urn:ogc:def:datum:EPSG::6710" />
</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="iogp-crs-4710">
  <gml:metaDataProperty>
    <epsg:CommonMetaData>
      <epsg:type>geographic 2D</epsg:type>
      <epsg:alias alias="ASTRO DOS 71/4" code="7187" codeSpace="urn:ogc:def:naming-system:EPSG::7301" />
      <epsg:alias alias="St. Helena 1971" code="7188" codeSpace="urn:ogc:def:naming-system:EPSG::7301" />
      <epsg:informationSource>DMA / NIMA / NGA TR8350.2 (3rd edition, Amendment 1, 3 January 2000) and St. Helena Government, Environment and Natural Resources Directorate (ENRD).</epsg:informationSource>
      <epsg:revisionDate>2016-12-15</epsg:revisionDate>
      <epsg:changes>
        <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2016.038" />
      </epsg:changes>
      <epsg:show>true</epsg:show>
      <epsg:isDeprecated>false</epsg:isDeprecated>
    </epsg:CommonMetaData>
  </gml:metaDataProperty>
  <gml:identifier codeSpace="IOGP">urn:ogc:def:crs:EPSG::4710</gml:identifier>
  <gml:name>Astro DOS 71</gml:name>
  <gml:remarks>Used between 1972 and 2015. Replaced by SHGD2015 (CRS code 7886) from 2015.</gml:remarks>
  <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::3183" />
  <gml:scope>Geodetic control, military and topographic mapping.</gml:scope>
  <gml:ellipsoidalCS xlink:href="urn:ogc:def:cs:EPSG::6422" />
  <gml:geodeticDatum xlink:href="urn:ogc:def:datum:EPSG::6710" />
</gml:GeodeticCRS>

Definition: XML

<?xml version="1.0" encoding="UTF-8"?>
 <gml:GeographicCRS gml:id="ogrcrs65312" xmlns:gml="http://www.opengis.net/gml/3.2">
  <gml:srsName>St. Helena 1971</gml:srsName>
  <gml:srsID>
    <gml:name gml:codeSpace="urn:ogc:def:crs:EPSG::">4710</gml:name>
  </gml:srsID>
  <gml:usesEllipsoidalCS>
    <gml:EllipsoidalCS gml:id="ogrcrs65313">
      <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="ogrcrs65314" 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="ogrcrs65315" 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="ogrcrs65316">
      <gml:datumName>St_Helena_1971</gml:datumName>
      <gml:datumID>
        <gml:name gml:codeSpace="urn:ogc:def:datum:EPSG::">6710</gml:name>
      </gml:datumID>
      <gml:usesPrimeMeridian>
        <gml:PrimeMeridian gml:id="ogrcrs65317">
          <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="ogrcrs65318">
          <gml:ellipsoidName>International 1924</gml:ellipsoidName>
          <gml:ellipsoidID>
            <gml:name gml:codeSpace="urn:ogc:def:ellipsoid:EPSG::">7022</gml:name>
          </gml:ellipsoidID>
          <gml:semiMajorAxis gml:uom="urn:ogc:def:uom:EPSG::9001">6378388</gml:semiMajorAxis>
          <gml:secondDefiningParameter>
            <gml:inverseFlattening gml:uom="urn:ogc:def:uom:EPSG::9201">297</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="ogrcrs65312" xmlns:gml="http://www.opengis.net/gml/3.2">
  <gml:srsName>St. Helena 1971</gml:srsName>
  <gml:srsID>
    <gml:name gml:codeSpace="urn:ogc:def:crs:EPSG::">4710</gml:name>
  </gml:srsID>
  <gml:usesEllipsoidalCS>
    <gml:EllipsoidalCS gml:id="ogrcrs65313">
      <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="ogrcrs65314" 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="ogrcrs65315" 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="ogrcrs65316">
      <gml:datumName>St_Helena_1971</gml:datumName>
      <gml:datumID>
        <gml:name gml:codeSpace="urn:ogc:def:datum:EPSG::">6710</gml:name>
      </gml:datumID>
      <gml:usesPrimeMeridian>
        <gml:PrimeMeridian gml:id="ogrcrs65317">
          <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="ogrcrs65318">
          <gml:ellipsoidName>International 1924</gml:ellipsoidName>
          <gml:ellipsoidID>
            <gml:name gml:codeSpace="urn:ogc:def:ellipsoid:EPSG::">7022</gml:name>
          </gml:ellipsoidID>
          <gml:semiMajorAxis gml:uom="urn:ogc:def:uom:EPSG::9001">6378388</gml:semiMajorAxis>
          <gml:secondDefiningParameter>
            <gml:inverseFlattening gml:uom="urn:ogc:def:uom:EPSG::9201">297</gml:inverseFlattening>
          </gml:secondDefiningParameter>
        </gml:Ellipsoid>
      </gml:usesEllipsoid>
    </gml:GeodeticDatum>
  </gml:usesGeodeticDatum>
</gml:GeographicCRS>

Definition: GeoServer

4710=GEOGCS["St. Helena 1971",DATUM["St_Helena_1971",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],TOWGS84[-320,550,-494,0,0,0,0],AUTHORITY["EPSG","6710"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4710"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=intl"
	"towgs84=-320,550,-494,0,0,0,0"
	"no_defs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=intl +towgs84=-320,550,-494,0,0,0,0 +no_defs">
	<Layer srs="+proj=longlat +ellps=intl +towgs84=-320,550,-494,0,0,0,0 +no_defs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4710, 'EPSG', 4710, '+proj=longlat +ellps=intl +towgs84=-320,550,-494,0,0,0,0 +no_defs ', 'GEOGCS["St. Helena 1971",DATUM["St_Helena_1971",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],TOWGS84[-320,550,-494,0,0,0,0],AUTHORITY["EPSG","6710"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4710"]]');

Definition: OGC WKT

GEOGCS["St. Helena 1971",DATUM["St_Helena_1971",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],TOWGS84[-320,550,-494,0,0,0,0],AUTHORITY["EPSG","6710"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4710"]]