Definition: OGP XML
<div class="syntax"><pre><span class="cp"><?xml version="1.0" encoding="UTF-8"?></span>
<span class="nt"><gml:GeodeticDatum</span> <span class="na">xmlns:epsg=</span><span class="s">"urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset"</span> <span class="na">xmlns:gml=</span><span class="s">"http://www.opengis.net/gml/3.2"</span> <span class="na">xmlns:xlink=</span><span class="s">"http://www.w3.org/1999/xlink"</span> <span class="na">gml:id=</span><span class="s">"iogp-datum-1244"</span><span class="nt">></span>
<span class="nt"><gml:metaDataProperty></span>
<span class="nt"><epsg:CommonMetaData></span>
<span class="nt"><epsg:type></span>geodetic<span class="nt"></epsg:type></span>
<span class="nt"><epsg:informationSource></span>http://www.ngs.noaa.gov/CORS/<span class="nt"></epsg:informationSource></span>
<span class="nt"><epsg:revisionDate></span>2019-05-15<span class="nt"></epsg:revisionDate></span>
<span class="nt"><epsg:changes></span>
<span class="nt"><epsg:changeID</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:change-request:EPSG::2019.031"</span> <span class="nt">/></span>
<span class="nt"></epsg:changes></span>
<span class="nt"><epsg:show></span>true<span class="nt"></epsg:show></span>
<span class="nt"><epsg:isDeprecated></span>false<span class="nt"></epsg:isDeprecated></span>
<span class="nt"></epsg:CommonMetaData></span>
<span class="nt"></gml:metaDataProperty></span>
<span class="nt"><gml:identifier</span> <span class="na">codeSpace=</span><span class="s">"IOGP"</span><span class="nt">></span>urn:ogc:def:datum:EPSG::1244<span class="nt"></gml:identifier></span>
<span class="nt"><gml:name></span>IGS97<span class="nt"></gml:name></span>
<span class="nt"><gml:remarks></span>Used for IGS products from GPS week 1065 through GPS week 1142 (2000-06-04 to 2001-12-01). Replaced by IGS00. For all practical purposes coincident with ITRF97.<span class="nt"></gml:remarks></span>
<span class="nt"><gml:domainOfValidity</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:area:EPSG::1262"</span> <span class="nt">/></span>
<span class="nt"><gml:scope></span>Geodesy. GPS satellite ephemerides produced by US NGS and other International GNSS Service (IGS) analysis centres are expressed in this datum.<span class="nt"></gml:scope></span>
<span class="nt"><gml:anchorDefinition></span>Derived from ITRF97 at epoch 1997.00 through a subset of stable IGS station coordinates. Preserves the ITRF origin, orientation and scale, but without any distortions introduced from non-GNSS space-geodetic techniques.<span class="nt"></gml:anchorDefinition></span>
<span class="nt"><gml:realizationEpoch></span>1997-01-01<span class="nt"></gml:realizationEpoch></span>
<span class="nt"><gml:primeMeridian</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:meridian:EPSG::8901"</span> <span class="nt">/></span>
<span class="nt"><gml:ellipsoid</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:ellipsoid:EPSG::7019"</span> <span class="nt">/></span>
<span class="nt"></gml:GeodeticDatum></span>
</pre></div>
<?xml version="1.0" encoding="UTF-8"?>
<gml:GeodeticDatum 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-datum-1244">
<gml:metaDataProperty>
<epsg:CommonMetaData>
<epsg:type>geodetic</epsg:type>
<epsg:informationSource>http://www.ngs.noaa.gov/CORS/</epsg:informationSource>
<epsg:revisionDate>2019-05-15</epsg:revisionDate>
<epsg:changes>
<epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2019.031" />
</epsg:changes>
<epsg:show>true</epsg:show>
<epsg:isDeprecated>false</epsg:isDeprecated>
</epsg:CommonMetaData>
</gml:metaDataProperty>
<gml:identifier codeSpace="IOGP">urn:ogc:def:datum:EPSG::1244</gml:identifier>
<gml:name>IGS97</gml:name>
<gml:remarks>Used for IGS products from GPS week 1065 through GPS week 1142 (2000-06-04 to 2001-12-01). Replaced by IGS00. For all practical purposes coincident with ITRF97.</gml:remarks>
<gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1262" />
<gml:scope>Geodesy. GPS satellite ephemerides produced by US NGS and other International GNSS Service (IGS) analysis centres are expressed in this datum.</gml:scope>
<gml:anchorDefinition>Derived from ITRF97 at epoch 1997.00 through a subset of stable IGS station coordinates. Preserves the ITRF origin, orientation and scale, but without any distortions introduced from non-GNSS space-geodetic techniques.</gml:anchorDefinition>
<gml:realizationEpoch>1997-01-01</gml:realizationEpoch>
<gml:primeMeridian xlink:href="urn:ogc:def:meridian:EPSG::8901" />
<gml:ellipsoid xlink:href="urn:ogc:def:ellipsoid:EPSG::7019" />
</gml:GeodeticDatum>