@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix esado: <https://data.esa.int/esado/> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix ns0: <https://gcmd.earthdata.nasa.gov/kms#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/b1c1ecfd-eb6c-4a51-b86e-2ae64babc27d>
  skos:prefLabel "Galileo (Europe's European Satellite Navigation System)"@en ;
  a skos:Concept ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/1506fb17-7ac4-44ce-bde5-074885bdb2d2> .

esado:platformsGCMD
  a skos:Collection, esado:MicroThesaurus, isothes:ConceptGroup ;
  skos:prefLabel "Global Change Master Directory platforms"@en ;
  skos:member <https://gcmd.earthdata.nasa.gov/kms/concept/1506fb17-7ac4-44ce-bde5-074885bdb2d2> .

<https://gcmd.earthdata.nasa.gov/kms/concept/960f8eb8-6ca9-47d3-ae4a-7e21ebfad4c0>
  skos:prefLabel "GLObal NAvigation Satellite System (GLONASS)"@en ;
  a skos:Concept ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/1506fb17-7ac4-44ce-bde5-074885bdb2d2> .

<https://gcmd.earthdata.nasa.gov/kms/concept/612454e6-06ce-4bd3-b4f2-6db85f49a013>
  skos:prefLabel "Satellite-Based Augmentation System (SBAS)"@en ;
  a skos:Concept ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/1506fb17-7ac4-44ce-bde5-074885bdb2d2> .

<https://gcmd.earthdata.nasa.gov/kms/concept/b39a69b4-c3b9-4a94-b296-bbbbe5e4c847>
  skos:prefLabel "Space-based Platforms"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/1506fb17-7ac4-44ce-bde5-074885bdb2d2> .

<https://gcmd.earthdata.nasa.gov/kms/concept/225fb800-22b1-4d06-88ac-2bb391ac0906>
  skos:prefLabel "Quasi-Zenith Satellite System (QZSS)"@en ;
  a skos:Concept ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/1506fb17-7ac4-44ce-bde5-074885bdb2d2> .

<https://gcmd.earthdata.nasa.gov/kms/concept/41de58a7-f1e3-453f-9094-80cb8e839b36>
  skos:prefLabel "NAVSTAR"@en ;
  a skos:Concept ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/1506fb17-7ac4-44ce-bde5-074885bdb2d2> .

esado:domainGCMD
  a skos:Collection, isothes:ConceptGroup, esado:Domain ;
  skos:prefLabel "Global Change Master Directory"@en ;
  skos:member esado:platformsGCMD .

<https://gcmd.earthdata.nasa.gov/kms/concept/7bf16419-1047-4902-a4fa-38c74bceb3bd>
  skos:prefLabel "Global Positioning System (GPS)"@en ;
  a skos:Concept ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/1506fb17-7ac4-44ce-bde5-074885bdb2d2> .

esado:
  rdfs:label "ESA Data Ontology"@en ;
  skos:prefLabel "ESA Data Ontology"@en ;
  a skos:ConceptScheme, owl:Ontology ;
  skos:hasTopConcept <https://gcmd.earthdata.nasa.gov/kms/concept/1506fb17-7ac4-44ce-bde5-074885bdb2d2> .

<https://gcmd.earthdata.nasa.gov/kms/concept/bad22a08-f8ab-49b3-b266-005b21496626>
  skos:prefLabel "India's Regional Navigation Satellite System (IRNSS)"@en ;
  a skos:Concept ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/1506fb17-7ac4-44ce-bde5-074885bdb2d2> .

<https://gcmd.earthdata.nasa.gov/kms/concept/ef679d6a-a05b-4976-a236-ce2158b758ea>
  skos:prefLabel "Beidou (China's Satellite Navigation System)"@en ;
  a skos:Concept ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/1506fb17-7ac4-44ce-bde5-074885bdb2d2> .

<https://gcmd.earthdata.nasa.gov/kms/concept/1506fb17-7ac4-44ce-bde5-074885bdb2d2>
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/612454e6-06ce-4bd3-b4f2-6db85f49a013>, <https://gcmd.earthdata.nasa.gov/kms/concept/ef679d6a-a05b-4976-a236-ce2158b758ea>, <https://gcmd.earthdata.nasa.gov/kms/concept/7bf16419-1047-4902-a4fa-38c74bceb3bd>, <https://gcmd.earthdata.nasa.gov/kms/concept/41de58a7-f1e3-453f-9094-80cb8e839b36>, <https://gcmd.earthdata.nasa.gov/kms/concept/225fb800-22b1-4d06-88ac-2bb391ac0906>, <https://gcmd.earthdata.nasa.gov/kms/concept/b1c1ecfd-eb6c-4a51-b86e-2ae64babc27d>, <https://gcmd.earthdata.nasa.gov/kms/concept/960f8eb8-6ca9-47d3-ae4a-7e21ebfad4c0>, <https://gcmd.earthdata.nasa.gov/kms/concept/736ef795-ec95-415f-b10a-456366f8a185>, <https://gcmd.earthdata.nasa.gov/kms/concept/bad22a08-f8ab-49b3-b266-005b21496626> ;
  skos:changeNote """2022-02-27 13:55:57.0 [tstevens]  
update Definition (Platforms such as GPS, NAVSTAR, and GLONASS whose purpose is for ascertaining one's position and planning and following a route.A satellite navigation system with global coverage may be termed a global navigation satellite system (GNSS). As of September 2020, the United States' Global Positioning System (GPS), Russia's Global Navigation Satellite System (GLONASS), China's BeiDou Navigation Satellite System (BDS) and the European Union's Galileo are fully operational GNSSs. Japan's Quasi-Zenith Satellite System (QZSS) is a (US) GPS satellite-based augmentation system to enhance the accuracy of GPS, with satellite navigation independent of GPS scheduled for 2023. The Indian Regional Navigation Satellite System (IRNSS) plans to expand to a global version in the long term.); 
update Definition (NASA); 
""", """2021-11-18 13:06:32.0 [tstevens] Move Concepts 
delete broader relation (null); 
add broader relation (Navigation Satellites [1506fb17-7ac4-44ce-bde5-074885bdb2d2,825996] - Space-based Platforms [b39a69b4-c3b9-4a94-b296-bbbbe5e4c847,835875]); 
""", """2017-08-14 15:24:51.0 [tstevens] Insert Concept 
add narrower relation (Navigation Platforms [1506fb17-7ac4-44ce-bde5-074885bdb2d2,287403] - SBAS (Satellite-Based Augmentation System) [612454e6-06ce-4bd3-b4f2-6db85f49a013,309927]); 
""", """2017-08-14 14:59:55.0 [tstevens] Insert Concept 
add narrower relation (Navigation Platforms [1506fb17-7ac4-44ce-bde5-074885bdb2d2,287403] - Galileo [b1c1ecfd-eb6c-4a51-b86e-2ae64babc27d,309895]); 
""", """2017-08-14 15:22:50.0 [tstevens] Insert Concept 
add narrower relation (Navigation Platforms [1506fb17-7ac4-44ce-bde5-074885bdb2d2,287403] - QZSS (Japan’s Quasi-Zenith Satellite System) [225fb800-22b1-4d06-88ac-2bb391ac0906,309911]); 
""", """2017-08-14 15:23:49.0 [tstevens] Insert Concept 
add narrower relation (Navigation Platforms [1506fb17-7ac4-44ce-bde5-074885bdb2d2,287403] - IRNSS (India’s Regional Navigation Satellite System) [bad22a08-f8ab-49b3-b266-005b21496626,309919]); 
""", """2017-08-14 15:21:42.0 [tstevens] Insert Concept 
add narrower relation (Navigation Platforms [1506fb17-7ac4-44ce-bde5-074885bdb2d2,287403] - Beidou (China’s Satellite Navigation System) [ef679d6a-a05b-4976-a236-ce2158b758ea,309903]); 
""", """2021-11-18 12:37:26.0 [tstevens]  
update PrefLabel (Navigation Satellites); 
""" ;
  skos:topConceptOf esado: ;
  skos:prefLabel "Navigation Satellites"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms>, esado: ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/b39a69b4-c3b9-4a94-b296-bbbbe5e4c847> ;
  a skos:Concept ;
  skos:definition "Platforms such as GPS, NAVSTAR, and GLONASS whose purpose is for ascertaining one's position and planning and following a route.A satellite navigation system with global coverage may be termed a global navigation satellite system (GNSS). As of September 2020, the United States' Global Positioning System (GPS), Russia's Global Navigation Satellite System (GLONASS), China's BeiDou Navigation Satellite System (BDS) and the European Union's Galileo are fully operational GNSSs. Japan's Quasi-Zenith Satellite System (QZSS) is a (US) GPS satellite-based augmentation system to enhance the accuracy of GPS, with satellite navigation independent of GPS scheduled for 2023. The Indian Regional Navigation Satellite System (IRNSS) plans to expand to a global version in the long term."@en ;
  ns0:reference [ ] .

<https://gcmd.earthdata.nasa.gov/kms/concept/736ef795-ec95-415f-b10a-456366f8a185>
  skos:prefLabel "FEDSAT"@en ;
  a skos:Concept ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/1506fb17-7ac4-44ce-bde5-074885bdb2d2> .