@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sosa: <http://www.w3.org/ns/sosa/> .
@prefix esado: <https://data.esa.int/esado/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .

<https://earth.esa.int/concept/8e754a1c-0947-56b2-bba9-c800e2b8e43d>
  skos:notation "S3B"@en ;
  rdfs:label "Sentinel-3B"@en ;
  skos:prefLabel "Sentinel-3B"@en ;
  a skos:Concept ;
  sosa:hosts <https://earth.esa.int/concept/7ee4616d-7cce-5a96-ba11-7bcc2cb8b41f> .

<https://earth.esa.int/concept/9a043c1c-b79e-56ea-8d29-ce17037667ef>
  skos:prefLabel "Radar Altimeters"@en ;
  a skos:Concept ;
  skos:narrower <https://earth.esa.int/concept/7ee4616d-7cce-5a96-ba11-7bcc2cb8b41f> .

<https://earth.esa.int/concept/48a68d1f-63e0-563a-b94e-67fee77706bb>
  skos:notation "S3A, S3B"@en ;
  rdfs:label "Sentinel-3"@en ;
  skos:prefLabel "Sentinel-3"@en ;
  a skos:Concept ;
  sosa:hosts <https://earth.esa.int/concept/7ee4616d-7cce-5a96-ba11-7bcc2cb8b41f> .

esado:
  rdfs:label "ESA Data Ontology"@en ;
  skos:prefLabel "ESA Data Ontology"@en ;
  a skos:ConceptScheme, owl:Ontology .

<https://gcmd.earthdata.nasa.gov/kms/concept/7b6e3162-1314-4441-b33a-e2b68ae85bcd>
  skos:prefLabel "Sentinel-3 SRAL"@en ;
  a skos:Concept .

<https://earth.esa.int/concept/276d427e-b285-5071-8e5d-bfbf9067eadb>
  skos:notation "S3A"@en ;
  rdfs:label "Sentinel-3A"@en ;
  skos:prefLabel "Sentinel-3A"@en ;
  a skos:Concept ;
  sosa:hosts <https://earth.esa.int/concept/7ee4616d-7cce-5a96-ba11-7bcc2cb8b41f> .

<https://earth.esa.int/concept/7ee4616d-7cce-5a96-ba11-7bcc2cb8b41f>
  skos:altLabel "Sentinel-3 SRAL"@en ;
  skos:broader <https://earth.esa.int/concept/9a043c1c-b79e-56ea-8d29-ce17037667ef> ;
  sosa:isHostedBy <https://earth.esa.int/concept/276d427e-b285-5071-8e5d-bfbf9067eadb>, <https://earth.esa.int/concept/8e754a1c-0947-56b2-bba9-c800e2b8e43d>, <https://earth.esa.int/concept/48a68d1f-63e0-563a-b94e-67fee77706bb> ;
  a skos:Concept ;
  skos:exactMatch <https://gcmd.earthdata.nasa.gov/kms/concept/7b6e3162-1314-4441-b33a-e2b68ae85bcd> ;
  skos:inScheme esado: ;
  rdfs:seeAlso <https://earth.esa.int/web/sentinel/technical-guides/sentinel-3-altimetry/instrument/sral> ;
  skos:prefLabel "SRAL"@en ;
  skos:definition """The SRAL instrument comprises one nadir-looking antenna, externally mounted on the satellite's +Zs Earth panel, and a central electronic chain composed of a Digital Processing Unit (DPU) and a Radio Frequency Unit (RFU). The central electronic chain is mounted inside the satellite on the -Ys panel in a cold redundant configuration.

The main frequency used for range measurements is the Ku-band (13.575 GHz, bandwidth 350 MHz), while the C-band frequency (5.41 GHz, bandwidth 320 MHz) is used for ionospheric correction."""@en .