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      <RightsName>Creative Commons Zero v1.0 Universal</RightsName>
      <Note>CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions</Note>
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  <NumericalData>
    <ResourceID>spase://NASA/NumericalData/ISEE1/LEPEDEA/PT128S</ResourceID>
    <NamingAuthority>NASA</NamingAuthority>
    <ResourceType>NumericalData</ResourceType>
    <ResourceHeader>
      <ResourceName>ISEE 1 LEPEDEA Distribution Functions, offline at NSSDC</ResourceName>
      <ReleaseDate>2025-12-04T13:29:37Z</ReleaseDate>
      <RevisionHistory>
        <RevisionEvent>
          <ReleaseDate>2020-07-07T21:14:39Z</ReleaseDate>
          <Note>Only known prior ReleaseDate of the metadata</Note>
        </RevisionEvent>
        <RevisionEvent>
          <ReleaseDate>2025-12-04T13:29:37Z</ReleaseDate>
          <Note>Added MetadataRightsList and RightsList(s). Added ResourceType and NamingAuthority. Updated to 2.7.1. ZCB</Note>
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      <Description>This data set consists of three-dimensional proton and electron distribution functions.  The energy range is 1 eV to 45 keV or 215 eV to 45 keV, according to mode.  Time resolution for full distributions is 128 sec or 512 sec, depending on telemetry bit rate.  Eight latitude and 16 azimuth bins are used, spanning 180 deg and 360 deg.  Spacecraft position information is included.  Data are currently in VAX binary format.  Data are for discrete intervals 11/01/1977-12/31/1980, 10/15/1982-12/27/1983, 03/01/1986-06/01/1986</Description>
      <Contact>
        <PersonID>spase://SMWG/Person/Cheryl.Y.Huang</PersonID>
        <Role>DataProducer</Role>
      </Contact>
      <InformationURL>
        <Name>NSSDC Master Catalog</Name>
        <URL>https://nssdc.gsfc.nasa.gov/nmc/dataset/display.action?id=SPMS-00308</URL>
      </InformationURL>
      <PriorID>spase://VSPO/NumericalData/SPMS-00308</PriorID>
      <PriorID>spase://VSPO/NumericalData/ISEE1/LEPEDEA/PT128S</PriorID>
    </ResourceHeader>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Offline</Availability>
      <AccessRights>Open</AccessRights>
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          <RightsName>Creative Commons Zero v1.0 Universal</RightsName>
          <Note>CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products</Note>
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      <AccessURL>
        <Name>NSSDC</Name>
        <URL>https://nssdc.gsfc.nasa.gov/nssdc/obtaining_data.html</URL>
      </AccessURL>
      <Format>Binary</Format>
      <DataExtent>
        <Quantity>15</Quantity>
        <Units>GB</Units>
      </DataExtent>
      <Acknowledgement>Please acknowledge the PI, Dr. Louis Frank, the data preparer, Dr. Cheryl Huang, and the NSSDC</Acknowledgement>
    </AccessInformation>
    <ProcessingLevel>Calibrated</ProcessingLevel>
    <InstrumentID>spase://SMWG/Instrument/ISEE1/LEPEDEA</InstrumentID>
    <MeasurementType>EnergeticParticles</MeasurementType>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>1977-11-01T00:00:00</StartDate>
        <StopDate>1986-06-01T00:00:00</StopDate>
        <Note>There are no data for 1/1/1981-10/14/1982 or for 12/28/1983-02/28/86.</Note>
      </TimeSpan>
      <Cadence>PT128S</Cadence>
    </TemporalDescription>
    <ObservedRegion>Earth.Magnetosheath</ObservedRegion>
    <ObservedRegion>Earth.Magnetosphere</ObservedRegion>
    <ObservedRegion>Heliosphere.NearEarth</ObservedRegion>
    <Parameter>
      <Name>Proton distribution function</Name>
      <Description>proton fluxes at 32 energy steps, 16 azimuthal directions and 5 (1977-1980) or 6 (1982-1986) latitudinal look directions.</Description>
      <Cadence>PT128S</Cadence>
      <Structure>
        <Size>32 16 5</Size>
        <Description>The proton distribution is distributed across 32 records, one per energy step.  Each record contains 2 (protons, electrons) x 16 x 5 (1977-1980; x 6 for 1982-1986) values.</Description>
      </Structure>
      <Particle>
        <ParticleType>Proton</ParticleType>
        <ParticleQuantity>NumberFlux</ParticleQuantity>
        <EnergyRange>
          <Low>1</Low>
          <High>45000</High>
          <Units>eV</Units>
        </EnergyRange>
      </Particle>
    </Parameter>
    <Parameter>
      <Name>Electron distribution function</Name>
      <Description>electon fluxes at 32 energy steps, 16 azimuthal directions and 5 (1977-1980) or 6 (1982-1986) latitudinal look directions.</Description>
      <Cadence>PT128S</Cadence>
      <Structure>
        <Size>32 16 5</Size>
        <Description>The electon distribution is distributed across 32 records, one per energy step.  Each record contains 2 (protons, electrons) x 16 x 5 (1977-1980; x 6 for 1982-1986) values.</Description>
      </Structure>
      <Particle>
        <ParticleType>Electron</ParticleType>
        <ParticleQuantity>NumberFlux</ParticleQuantity>
        <EnergyRange>
          <Low>1</Low>
          <High>45000</High>
          <Units>eV</Units>
        </EnergyRange>
      </Particle>
    </Parameter>
    <Parameter>
      <Name>Spacecraft location</Name>
      <Description>GSE x,y,z components of position vector</Description>
      <Cadence>PT128S</Cadence>
      <Units>km</Units>
      <CoordinateSystem>
        <CoordinateRepresentation>Cartesian</CoordinateRepresentation>
        <CoordinateSystemName>GSE</CoordinateSystemName>
      </CoordinateSystem>
      <Structure>
        <Size>3</Size>
        <Description>GSE x,y,z components of position vector</Description>
      </Structure>
      <Support>
        <SupportQuantity>Positional</SupportQuantity>
      </Support>
    </Parameter>
  </NumericalData>
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