@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ns0: <https://gcmd.earthdata.nasa.gov/kms#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/8e8b7689-0a8e-47a4-9c68-5f6a207104d5>
  skos:prefLabel "Solar/Space Observation Satellites"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/c381eef8-a0be-407e-b85b-67757d724af8> .

<https://gcmd.earthdata.nasa.gov/kms/concept/f4c1befd-8eae-4cc0-b7ce-1a5306f79fa8>
  skos:prefLabel "RAE-A"@en ;
  a skos:Concept ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/c381eef8-a0be-407e-b85b-67757d724af8> .

<https://gcmd.earthdata.nasa.gov/kms/concept/c381eef8-a0be-407e-b85b-67757d724af8>
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/82b2d471-ddff-4c3c-8eed-82e834cc0029>, <https://gcmd.earthdata.nasa.gov/kms/concept/f4c1befd-8eae-4cc0-b7ce-1a5306f79fa8> ;
  skos:prefLabel "Radio Astronomy Explorer (RAE)"@en ;
  skos:definition "The Radio Astronomy Explorer investigated low frequency (long wave-length) radio emissions from the sun and its planets as well as galactic and extragalactic sources. The spacecraft had a mass of about 190 kg. It was equipped with a dipole antenna (36 m from tip to tip) and two V-shaped antennas. These antennas consist of four 230 m long elements which form a large \"X\" with the spacecraft in the center. The V-shaped antennas provided gravity gradient stabilization. The RAE program, as planned, called for a series of four spacecraft with the first scheduled for launch in early 1968. Two missions (RAE-A and B) were approved and payloads for them were selected. Missions RAE-C, and D were not approved. RAE-A and B were intended for a circular orbit with an altitude of 5800 km. Inclination of the orbit to the equator was 58 degrees retrograde and the orbital period was 3.83 hours."@en ;
  skos:changeNote """2021-12-01 12:52:21.0 [tstevens]  
update PrefLabel (Radio Astronomy Explorer (RAE)); 
""", """2022-03-07 13:10:24.0 [tstevens]  
insert Definition (id: null
text: The Radio Astronomy Explorer investigated low frequency (long wave-length) radio emissions from the sun and its planets as well as galactic and extragalactic sources. The spacecraft had a mass of about 190 kg. It was equipped with a dipole antenna (36 m from tip to tip) and two V-shaped antennas. These antennas consist of four 230 m long elements which form a large "X" with the spacecraft in the center. The V-shaped antennas provided gravity gradient stabilization. The RAE program, as planned, called for a series of four spacecraft with the first scheduled for launch in early 1968. Two missions (RAE-A and B) were approved and payloads for them were selected. Missions RAE-C, and D were not approved. RAE-A and B were intended for a circular orbit with an altitude of 5800 km. Inclination of the orbit to the equator was 58 degrees retrograde and the orbital period was 3.83 hours.
language code: en); 
""" ;
  ns0:reference [ ] ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/8e8b7689-0a8e-47a4-9c68-5f6a207104d5> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/82b2d471-ddff-4c3c-8eed-82e834cc0029>
  skos:prefLabel "RAE-B"@en ;
  a skos:Concept ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/c381eef8-a0be-407e-b85b-67757d724af8> .