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      <ResourceName>Wind Energetic Particle Acceleration, Composition and Transport (EPACT) APE-B Telescope Proton Fluxes 18.90 to 21.90 MeV, Level 2, 1 hr Data</ResourceName>
      <DOI>https://doi.org/10.48322/k50r-er56</DOI>
      <ReleaseDate>2025-12-04T13:32:50Z</ReleaseDate>
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      <Description>The Energetic Particles: Acceleration, Composition and Transport, EPACT, on Wind. The APE-B Telescope measures Proton Fluxes at Particle Energies of 18.90 MeV to 21.90 MeV.</Description>
      <Acknowledgement>T.T. Von Rosenvinge, D.V. Reames</Acknowledgement>
      <PublicationInfo>
        <Authors>Von Rosenvinge, Tycho T.; &amp; Reames, Donald V.</Authors>
        <PublicationDate>2021-01-01T00:00:00</PublicationDate>
        <PublishedBy>Space Physics Data Facility</PublishedBy>
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      <AccessURL>
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      <Acknowledgement>T.T. Von Rosenvinge, D.V. Reames. Please acknowledge the data providers and CDAWeb when using these data.</Acknowledgement>
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      <Acknowledgement>T.T. Von Rosenvinge, D.V. Reames. Please acknowledge the data providers and CDAWeb when using these data.</Acknowledgement>
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    <ProcessingLevel>Calibrated</ProcessingLevel>
    <InstrumentID>spase://SMWG/Instrument/Wind/EPACT</InstrumentID>
    <MeasurementType>EnergeticParticles</MeasurementType>
    <TemporalDescription>
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        <StopDate>2016-01-01T23:59:59.999</StopDate>
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      <Cadence>PT1H</Cadence>
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    <ObservedRegion>Heliosphere</ObservedRegion>
    <ObservedRegion>Heliosphere.NearEarth</ObservedRegion>
    <ObservedRegion>Heliosphere.Inner</ObservedRegion>
    <Parameter>
      <Name>Epoch Time</Name>
      <ParameterKey>Epoch</ParameterKey>
      <Description>Epoch Time, Beginning of Interval</Description>
      <Caveats>Average Type: standard This parameter exhibits an increasing monotonic progression.</Caveats>
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      <Support>
        <SupportQuantity>Temporal</SupportQuantity>
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    <Parameter>
      <Name>Proton Flux Intensity</Name>
      <Set>Time series defined by using: EPOCH</Set>
      <ParameterKey>flux_H</ParameterKey>
      <Description>Proton Flux Intensity, 18.90 MeV/n to 21.90 MeV/n</Description>
      <Cadence>PT1H</Cadence>
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      <Particle>
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        <ParticleQuantity>NumberFlux</ParticleQuantity>
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    <Parameter>
      <Name>Proton Flux Intensity, Uncertainties</Name>
      <Set>Time series defined by using: EPOCH</Set>
      <ParameterKey>unc_H</ParameterKey>
      <Description>Proton Flux Intensity, Uncertainties, 18.90 MeV/n to 21.90 MeV/n</Description>
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        <Qualifier>Uncertainty</Qualifier>
        <ParticleQuantity>NumberFlux</ParticleQuantity>
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