<?xml version="1.0" encoding="UTF-8"?>

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  <Version>2.4.1</Version>

  <Instrument>

    <ResourceID>spase://CNES/Instrument/CDPP-AMDA/MAVEN/SEP</ResourceID>

    <ResourceHeader>
      <ResourceName>SEP</ResourceName>
      <AlternateName>Solar Energetic Particle</AlternateName>
      <ReleaseDate>2016-08-01T22:37:00Z</ReleaseDate>
      <Description>The Solar Energetic Particle (SEP) instrument is part of the Particles and Fields 
        Package and determines the impact of SEPs on the upper atmosphere.

Goals:
    * Determine SEP input into the atmosphere as a function of altitude
    * Determine SEP heating, ionization, and sputtering of upper atmosphere

    * Detect the highest energy pickup ions (>30 to 100s of keV)

Observations:
    * Characterize solar particles in an energy range that affects upper atmosphere and ionospheric processes (~120 – 200 km)
    * Time resolution adequate to capture major SEP events ( less 1 hour)
    
 Technical details and heritage:
    * Two dual double-ended telescopes
    * Four look directions per species, optimized for parallel and perpendicular Parker Spiral viewing
    * Protons and heavier ions from ~25 keV to 12 MeV
    * Electrons from ~25 keV to 1 MeV
    * Energy fluxes 10 to 106 eV/cm2-sec-ster-eV
    * Better than 50% energy resolution
    * Heritage from (nearly identical to) SST on THEMIS
      </Description>
      <Contact>       
        <PersonID>spase://SMWG/Person/Davin.Larson</PersonID>
        <Role>PrincipalInvestigator</Role>
      </Contact>
      <InformationURL>
        <Name>SEP web page, Summary sheet </Name>
        <URL>http://lasp.colorado.edu/home/maven/science/instrument-package/sep/</URL>
      </InformationURL>      
    </ResourceHeader>

   <InstrumentType>SolidStateDetector</InstrumentType>
    <InvestigationName>MAVEN Solar Energetic Particle Investigation</InvestigationName>

    <OperatingSpan>
      <StartDate>2013-11-18T13:28:00</StartDate>
      <!--StopDate>2014-12-16T00:00:00</StopDate-->
      <!-- Note :  Mission phases : multiple tags possible -->
      <Note>Mars arrival : 2014-09-28T19:24:00</Note>
    </OperatingSpan>

    <ObservatoryID>spase://CNES/Observatory/CDPP-AMDA/MAVEN</ObservatoryID>

  </Instrument>
</Spase>