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

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  <Version>2.4.1</Version>

  <Instrument>

    <ResourceID>spase://CNES/Instrument/CDPP-AMDA/MESSENGER/EPS</ResourceID>

    <ResourceHeader>
      <ResourceName>EPS</ResourceName>
      <AlternateName>Energetic Particle and Plasma Spectrometer (EPPS) : Energetic Particle Spectrometer</AlternateName>
      <ReleaseDate>2017-01-20T21:10:13Z</ReleaseDate>
      <Description>EPS	is	a	compact	TOF	telescope	with	two	main	components:	a	TOF	section	and	a	Solid	State	 
Detectors	(SSD)	array.	The	SSD	array	comprises	six	ion-implanted	planar	silicon	detectors,	
each	with	four	pixels	(two	dedicated	to	ion	measurements	and	two	to	electron	
measurements)	for	a	total	of	24	SSD	elements.	Particles	enter	the	system	through	a	
mechanical	collimator	that	delimits	the	look	direction	into	the	instrument.	Particles	that	
pass	through	the	collimator	then	transit	through	a	thin,	composite	Start	foil	(polyimide	+	 
aluminum,	10	µg/cm2)	and	onto	the	TOF	region	of	the	instrument.</Description>
       <Contact>

          <PersonID>spase://SMWG/Person/George.Ho</PersonID>

         <Role>Scientist</Role>      
      </Contact> 
      <InformationURL>
        <Name>EPS description</Name>

        <URL>https://link.springer.com/article/10.1007%2Fs112.4.107-9272-5</URL>

      </InformationURL> 
    </ResourceHeader>
    <InstrumentType>EnergeticParticleInstrument</InstrumentType>

    <InvestigationName>Energetic Particle and Plasma Spectrometer (EPPS) : Energetic Particle Spectrometer</InvestigationName>

    <OperatingSpan>
      <StartDate>2005-08-02T00:00:00Z</StartDate>
      <StopDate>2015-04-30T00:00:00Z</StopDate>
      <Note>Earth Flyby 2005-08-02</Note>
      <Note> Data Gap 2005-08-03 / 2006-10-25</Note>
      <Note> 1st Venus Flyby : 2006-10-25 </Note>
      <Note> Data Gap 2006-10-26 / 2007-06-05</Note>
      <Note> 2nd Venus flyby : 2007-06-05</Note>
      <Note> Data Gap 2007-06-06 / 2008-01-14</Note>
      <Note> 1st Mercury flyby : 2008-01-14 </Note>
      <Note> Data Gap 2008-01-15 / 2008-10-06</Note>
      <Note> 2nd Mercury flyby : 2008-10-06 </Note>
      <Note> Data Gap 2008-10-07 / 2009-09-29</Note>
      <Note> 3rd Mercury flyby : 2009-09-29 </Note>
      <Note> Data Gap 2009-09-30 / 2011-03-18</Note>
      <Note> Mission phase : 2011-03-18 </Note>
    </OperatingSpan>

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

  </Instrument>
</Spase>