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

<https://gcmd.earthdata.nasa.gov/kms/concept/bb175474-5e70-47be-8e1f-8dcd7563cc5b>
  skos:prefLabel "Magnetic Field/Electric Field Instruments"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/56b3e539-db39-4ff5-8fc3-7dc9b2ee0460> .

<https://gcmd.earthdata.nasa.gov/kms/concept/56b3e539-db39-4ff5-8fc3-7dc9b2ee0460>
  ns0:altLabel [ ] ;
  skos:definition """The 3D-Plasma Analyzer (3DA) instrument on EQUATOR-S consists of an electron
electrostatic analyzer (EESA) and an ion electrostatic analyzer (PESA). The
analyzer is a symmetrical spherical-section electrostatic analyzer (top-hat
design) with a disc-shaped field of view (FOV) of 180¡ directed perpendicular
to the spacecraft body. The complete solid-angle sphere is thus covered in one
spin period of 1.5 s. The analyzers measure electron and ion distribution
functions in 192 angle and 56 energy channels, in the energy-per-charge range
10 eV - 25 keV. Moments of the distributions are computed on board. The 3DA
instrument (together with the EPI instrument) is a derivative of the 3D Plasma
and Energetic Particle Instrument on the WIND spacecraft.
See:
http://www.mpe-garching.mpg.de/EQS/eq-s-instruments.html"""@en ;
  skos:prefLabel "3DA"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/bb175474-5e70-47be-8e1f-8dcd7563cc5b> ;
  a skos:Concept .

