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  <Version>2.3.1</Version>

  <Instrument>

    <ResourceID>spase://CNES/Instrument/CDPP-AMDA/THEMIS/D/ESA</ResourceID>

    <ResourceHeader>
      <ResourceName>ESA</ResourceName>

      <ReleaseDate>2017-03-20T21:10:04Z</ReleaseDate>

      <Description>The THEMIS Electrostatic Analyzers (ESAs) measures the flux of thermal particles in a 360° field of view over the energy range from ~3 eV to 30 keV. There are two ESAs on each THEMIS spacecraft, one measures ions, the other electrons. The ESA measures the full 3-D distributions, as well as the density, velocity, and temperature of the ambient electrons and ions.</Description>

      <Acknowledgement> NASA contract NAS5-02099 and V. Angelopoulos for use of data from the THEMIS Mission. Specifically: C. W. Carlson and J. P. McFadden for use of ESA data. </Acknowledgement>   

      <Contact>

        <PersonID>spase://SMWG/Person/Charles.W.Carlson</PersonID>
        <Role>CoInvestigator</Role>
      </Contact>
      <Contact>

        <PersonID>spase://SMWG/Person/James.P.McFadden</PersonID>
        <Role>CoInvestigator</Role>
      </Contact>
      <InformationURL>

        <Name>NSSDC description</Name>

        <URL>http://nssdc.gsfc.nasa.gov/nmc/experimentDisplay.do?id=2007-004A-02</URL>
        <Description>Instrument description from NSSDC database</Description>
      </InformationURL>

      <InformationURL>
        <Name>UCLA description</Name>
        <URL>http://themis.igpp.ucla.edu/instrument_esa.shtml</URL>
        <Description>Instrument description from UCLA</Description>
      </InformationURL>

      <PriorID>spase://SMWG/Instrument/THEMIS-D/ESA</PriorID>
    </ResourceHeader>
    <InstrumentType>ElectrostaticAnalyser</InstrumentType>

    <InvestigationName/>

    <ObservatoryID>spase://CNES/Observatory/CDPP-AMDA/THEMIS/ThemisD</ObservatoryID>

    <Caveats/>
  </Instrument>
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