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    <ResourceHeader>
      <ResourceName>Wind EPACT/LEMT 1-Hr He,C,O,Ne,Si,Fe Solar Energetic Particle Intensities Level 2 Data</ResourceName>
      <DOI>https://doi.org/10.48322/n0f2-3519</DOI>
      <ReleaseDate>2025-12-04T13:32:50Z</ReleaseDate>
      <RevisionHistory>
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          <ReleaseDate>2021-05-31T12:34:56.789</ReleaseDate>
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      <Description>Hourly-averaged fluxes of He, C, O Ne,Si, Fe nuclei in the general range 2-11 MeV/n. Poisson uncertainties are given for each flux.</Description>
      <Acknowledgement>Dr. Tycho T. Von Rosenvinge</Acknowledgement>
      <PublicationInfo>
        <Authors>Von Rosenvinge, Tycho T.; Reames, Donald V.; &amp; Tan, Lun C.</Authors>
        <PublicationDate>2021-01-01T00:00:00</PublicationDate>
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        <Role>PrincipalInvestigator</Role>
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        <PersonID>spase://SMWG/Person/Donald.V.Reames</PersonID>
        <Role>CoInvestigator</Role>
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        <PersonID>spase://SMWG/Person/Robert.E.McGuire</PersonID>
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        <URL>ftps://spdf.gsfc.nasa.gov/pub/data/wind/epact/epact_l2-1hour-sep/</URL>
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        <URL>https://spdf.gsfc.nasa.gov/pub/data/wind/epact/epact_l2-1hour-sep/</URL>
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      <Format>CDF</Format>
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        <Description>Web Service to this product using the HAPI interface.</Description>
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      <Format>CSV</Format>
      <Acknowledgement>NASA Space Physics Data Facility (SPDF) CDAWeb.</Acknowledgement>
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    <InstrumentID>spase://SMWG/Instrument/Wind/EPACT</InstrumentID>
    <MeasurementType>EnergeticParticles</MeasurementType>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>1994-11-03T00:00:00.000Z</StartDate>
        <RelativeStopDate>-P30D</RelativeStopDate>
      </TimeSpan>
      <Cadence>PT1H</Cadence>
    </TemporalDescription>
    <ObservedRegion>Heliosphere.NearEarth</ObservedRegion>
    <Parameter>
      <Name>Epoch Time</Name>
      <ParameterKey>Epoch</ParameterKey>
      <Description>Number of milliseconds since the CDF epoch.</Description>
      <Units>ms</Units>
      <UnitsConversion>1e-3&gt;s</UnitsConversion>
      <ValidMin>01-Jan-1956 00:00:00.000</ValidMin>
      <ValidMax>01-Jan-2083 00:00:00.000</ValidMax>
      <FillValue>-1.0E31</FillValue>
      <Support>
        <SupportQuantity>Temporal</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>Helium Flux</Name>
      <ParameterKey>flux_He</ParameterKey>
      <Description>He intensity, at select energies 2.2-8.5 MeV/nuc</Description>
      <Cadence>PT1H</Cadence>
      <Units>1/(cm^2 sec ster MeV/n)</Units>
      <Structure>
        <Size>7 1</Size>
        <Description>This is a 7 x 1 matrix, with 7 rows for each of the 7 energy windows</Description>
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      <Particle>
        <ParticleType>AlphaParticle</ParticleType>
        <ParticleType>Ion</ParticleType>
        <ParticleQuantity>NumberFlux</ParticleQuantity>
        <EnergyRange>
          <Low>2</Low>
          <High>9.64</High>
          <Units>MeV/n</Units>
        </EnergyRange>
      </Particle>
    </Parameter>
    <Parameter>
      <Name>Carbon Flux</Name>
      <ParameterKey>flux_C</ParameterKey>
      <Description>C intensity, at 7 energies 2.9-11.4 MeV/nuc</Description>
      <Cadence>PT1H</Cadence>
      <Units>1/(cm^2 sec ster MeV/n)</Units>
      <Structure>
        <Size>7 1</Size>
        <Description>This is a 7 x 1 matrix, with 7 rows for each of the 7 energy windows</Description>
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      <Particle>
        <ParticleType>AlphaParticle</ParticleType>
        <ParticleType>Ion</ParticleType>
        <ParticleQuantity>NumberFlux</ParticleQuantity>
        <EnergyRange>
          <Low>2.57</Low>
          <High>13.7</High>
          <Units>MeV/n</Units>
        </EnergyRange>
      </Particle>
    </Parameter>
    <Parameter>
      <Name>Oxygen Flux</Name>
      <ParameterKey>flux_O</ParameterKey>
      <Description>O intensity, at 7 energies 2.9-11.3 MeV/nuc</Description>
      <Cadence>PT1H</Cadence>
      <Units>1/(cm^2 sec ster MeV/n)</Units>
      <Structure>
        <Size>7 1</Size>
        <Description>This is a 7 x 1 matrix, with 7 rows for each of the 7 energy windows</Description>
      </Structure>
      <Particle>
        <ParticleType>AlphaParticle</ParticleType>
        <ParticleType>Ion</ParticleType>
        <ParticleQuantity>NumberFlux</ParticleQuantity>
        <EnergyRange>
          <Low>2.56</Low>
          <High>13.4</High>
          <Units>MeV/n</Units>
        </EnergyRange>
      </Particle>
    </Parameter>
    <Parameter>
      <Name>Neon Flux</Name>
      <ParameterKey>flux_Ne</ParameterKey>
      <Description>Ne intensity, at 6 energies 3.6-11.3 MeV/nuc</Description>
      <Cadence>PT1H</Cadence>
      <Units>1/(cm^2 sec ster MeV/n)</Units>
      <Structure>
        <Size>7 1</Size>
        <Description>This is a 7 x 1 matrix, with 7 rows for each of the 7 energy windows</Description>
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      <Particle>
        <ParticleType>AlphaParticle</ParticleType>
        <ParticleType>Ion</ParticleType>
        <ParticleQuantity>NumberFlux</ParticleQuantity>
        <EnergyRange>
          <Low>3.27</Low>
          <High>12.7</High>
          <Units>MeV/n</Units>
        </EnergyRange>
      </Particle>
    </Parameter>
    <Parameter>
      <Name>Silicon Flux</Name>
      <ParameterKey>flux_Si</ParameterKey>
      <Description>Si intensity, at 7 energies 2.8-11.6 MeV/nuc (time-series with uncertainties)</Description>
      <Cadence>PT1H</Cadence>
      <Units>1/(cm^2 sec ster MeV/n)</Units>
      <Structure>
        <Size>7 1</Size>
        <Description>This is a 7 x 1 matrix, with 7 rows for each of the 7 energy windows</Description>
      </Structure>
      <Particle>
        <ParticleType>AlphaParticle</ParticleType>
        <ParticleType>Ion</ParticleType>
        <ParticleQuantity>NumberFlux</ParticleQuantity>
        <EnergyRange>
          <Low>2.5</Low>
          <High>13.6</High>
          <Units>MeV/n</Units>
        </EnergyRange>
      </Particle>
    </Parameter>
    <Parameter>
      <Name>Iron Flux</Name>
      <ParameterKey>flux_Fe</ParameterKey>
      <Description>Fe intensity, at 7 energies 2.7-10.9 MeV/nuc</Description>
      <Cadence>PT1H</Cadence>
      <Units>1/(cm^2 sec ster MeV/n)</Units>
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        <ParticleType>Ion</ParticleType>
        <ParticleQuantity>NumberFlux</ParticleQuantity>
        <EnergyRange>
          <Low>2.4</Low>
          <High>12.5</High>
          <Units>MeV/n</Units>
        </EnergyRange>
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