<?xml version="1.0" encoding="utf-8"?>
<rdf:RDF
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:skos="http://www.w3.org/2004/02/skos/core#"
    xmlns:pithia="https://metadata.pithia.eu/ontology/2.2/"
    xmlns:owlxml="http://www.w3.org/2006/12/owl2-xml#"
>            
<skos:Concept rdf:about="https://metadata.pithia.eu/ontology/2.2/crs/J2000spherical">
                <skos:prefLabel xml:lang="en">Geocentric Equatorial Inertial system for epoch 2000 (spherical)</skos:prefLabel>
                <skos:altLabel xml:lang="en">J2000 spherical</skos:altLabel>
                <dc:date>2013-05-31 10:00:00.0</dc:date>
                <owlxml:versionInfo>0.1</owlxml:versionInfo>
                <skos:definition xml:lang="en">Geocentric Equatorial Inertial system for epoch 2000 (also known as GEI2000, i.e. GEI for epoch 2000.0) in spherical representation (lat, lon, alt), where "alt" is the distance from Earth center in km (the mean Earth radius is 6371.2 km)</skos:definition>
            </skos:Concept>
</rdf:RDF>