<Spase xmlns="http://www.spase-group.org/data/schema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://www.spase-group.org/data/schema https://www.spase-group.org/data/schema/spase-2.7.1.xsd">
  <Version>2.7.1</Version>
  <MetadataRightsList>
    <Rights>
      <SchemeURI>https://spdx.org/licenses/</SchemeURI>
      <RightsIdentifierScheme>SPDX</RightsIdentifierScheme>
      <RightsIdentifier>CC0-1.0</RightsIdentifier>
      <RightsURI>https://spdx.org/licenses/CC0-1.0.html</RightsURI>
      <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>
    </Rights>
  </MetadataRightsList>
  <NumericalData>
    <ResourceID>spase://NASA/NumericalData/Wind/3DP/ELPD/PT96S</ResourceID>
    <NamingAuthority>NASA</NamingAuthority>
    <ResourceType>NumericalData</ResourceType>
    <ResourceHeader>
      <ResourceName>Wind 3DP EESA-LOW Electron Pitch-Angle Distributions</ResourceName>
      <DOI>https://doi.org/10.48322/kesf-re26</DOI>
      <ReleaseDate>2025-12-04T13:32:48Z</ReleaseDate>
      <RevisionHistory>
        <RevisionEvent>
          <ReleaseDate>2021-05-31T12:34:56.789</ReleaseDate>
          <Note>Updated to SPASE Version 2.3.2 if needed, Applied quality control for DOI usage, LFB</Note>
        </RevisionEvent>
        <RevisionEvent>
          <ReleaseDate>2025-09-30T14:25:25Z</ReleaseDate>
          <Note>Updated PublishedBy name to match ROR Registry. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB</Note>
        </RevisionEvent>
        <RevisionEvent>
          <ReleaseDate>2025-10-23T12:34:56.789</ReleaseDate>
          <Note>Revised ObservedRegion. JMW</Note>
        </RevisionEvent>
        <RevisionEvent>
          <ReleaseDate>2025-12-04T13:32:48Z</ReleaseDate>
          <Note>Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB</Note>
        </RevisionEvent>
      </RevisionHistory>
      <Description>Wind 3DP electron pitch angle product providing electron fluxes in 8 directional bins relative to the local magnetic field direction at 15 different energy levels. Time resolution is mode- dependent, with 96s being used for the past several years and with higher resolution (e.g., 24s) used for some earlier intervals. For any given cadence, electron observations made over the full cadence interval and in all look directions in and out of the spacecraft spin plane, are folded together with the magnetic field vector as averaged over the cadence interval, to produce the pitch angle distributions. The data are calibrated science quality data.</Description>
      <Acknowledgement>User will acknowledge the Wind 3DP Team in any publication resulting from use of this data.</Acknowledgement>
      <PublicationInfo>
        <Authors>Lin, Robert P.; Bale, Stuart D.; Wilson III, Lynn B.; &amp; Schroeder, Peter</Authors>
        <PublicationDate>2021-01-01T00:00:00</PublicationDate>
        <PublishedBy>Space Physics Data Facility; University of California, Berkeley</PublishedBy>
      </PublicationInfo>
      <Contact>
        <PersonID>spase://SMWG/Person/Peter.Schroeder</PersonID>
        <Role>DataProducer</Role>
      </Contact>
      <Contact>
        <PersonID>spase://SMWG/Person/Robert.P.Lin</PersonID>
        <Role>PrincipalInvestigator</Role>
      </Contact>
      <InformationURL>
        <Name>Wind 3DP instrument home page</Name>
        <URL>http://sprg.ssl.berkeley.edu/wind3dp/</URL>
        <Description>The Wind 3DP instrument home page contains information on the Wind 3DP instruments and their associated data sets.</Description>
      </InformationURL>
      <PriorID>spase://VHO/NumericalData/Wind/3DP/ELPD.PT96S</PriorID>
      <PriorID>spase://VSPO/NumericalData/Wind/3DP/ELPD/PT96S</PriorID>
    </ResourceHeader>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <RightsList>
        <Rights>
          <SchemeURI>https://spdx.org/licenses/</SchemeURI>
          <RightsIdentifierScheme>SPDX</RightsIdentifierScheme>
          <RightsIdentifier>CC0-1.0</RightsIdentifier>
          <RightsURI>https://spdx.org/licenses/CC0-1.0.html</RightsURI>
          <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>
        </Rights>
      </RightsList>
      <AccessURL>
        <Name>FTPS from SPDF (not with most browsers)</Name>
        <URL>ftps://spdf.gsfc.nasa.gov/pub/data/wind/3dp/3dp_elpd/</URL>
        <Description>in CDF via ftp from CDAWeb</Description>
      </AccessURL>
      <AccessURL>
        <Name>HTTPS from SPDF</Name>
        <URL>https://spdf.gsfc.nasa.gov/pub/data/wind/3dp/3dp_elpd/</URL>
        <Description>In CDF via HTTP from CDAWeb</Description>
      </AccessURL>
      <Format>CDF</Format>
      <Encoding>None</Encoding>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <RightsList>
        <Rights>
          <SchemeURI>https://spdx.org/licenses/</SchemeURI>
          <RightsIdentifierScheme>SPDX</RightsIdentifierScheme>
          <RightsIdentifier>CC0-1.0</RightsIdentifier>
          <RightsURI>https://spdx.org/licenses/CC0-1.0.html</RightsURI>
          <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>
        </Rights>
      </RightsList>
      <AccessURL>
        <Name>CDAWeb</Name>
        <URL>https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=WI_ELPD_3DP&amp;index=sp_phys</URL>
        <ProductKey>WI_ELPD_3DP</ProductKey>
        <Description>Subsets, plots, lists from CDAWeb</Description>
      </AccessURL>
      <Format>Text</Format>
      <Encoding>None</Encoding>
            <AccessDirectoryTemplate>https://cdaweb.gsfc.nasa.gov/pub/data/wind/3dp/3dp_elpd/$Y</AccessDirectoryTemplate>
            <AccessFilenameTemplate>wi_elpd_3dp_$Y$m$d_$v.cdf</AccessFilenameTemplate>
    </AccessInformation>
        <AccessInformation>
            <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
            <Availability>Online</Availability>
            <AccessRights>Open</AccessRights>
            <AccessURL>
                <Name>CDAWeb Programmatic Data Access</Name>
                <URL>https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/WI_ELPD_3DP/clientLibraryExample/</URL>
                <Style>WebService</Style>
                <ProductKey>WI_ELPD_3DP</ProductKey>
                <Description>Access to this data from common programming environments.  Note: this AccessInformation element was added by HDPWS.</Description>
            </AccessURL>
            <Format>Binary</Format>
            <Acknowledgement/>
        </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <RightsList>
        <Rights>
          <SchemeURI>https://spdx.org/licenses/</SchemeURI>
          <RightsIdentifierScheme>SPDX</RightsIdentifierScheme>
          <RightsIdentifier>CC0-1.0</RightsIdentifier>
          <RightsURI>https://spdx.org/licenses/CC0-1.0.html</RightsURI>
          <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>
        </Rights>
      </RightsList>
      <AccessURL>
        <Name>CDAWeb HAPI Server</Name>
        <URL>https://cdaweb.gsfc.nasa.gov/hapi</URL>
        <Style>HAPI</Style>
        <ProductKey>WI_ELPD_3DP</ProductKey>
        <Description>Web Service to this product using the HAPI interface.</Description>
      </AccessURL>
      <Format>CSV</Format>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/UCB/Wind/3DP</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <AccessURL>
        <Name>WIND 3DP ELPD data at UCB</Name>
        <URL>http://sprg.ssl.berkeley.edu/wind3dp/data/wi/3dp/elpd/</URL>
        <Description>in CDF via ftp from CDAWeb</Description>
      </AccessURL>
      <Format>CDF</Format>
      <Encoding>None</Encoding>
    </AccessInformation>
    <ProviderResourceName>Wind 3DP ELPD Data</ProviderResourceName>
    <ProviderProcessingLevel>1</ProviderProcessingLevel>
    <ProviderVersion>2</ProviderVersion>
    <InstrumentID>spase://SMWG/Instrument/Wind/3DP</InstrumentID>
    <MeasurementType>ThermalPlasma</MeasurementType>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>1994-11-15T12:53:43Z</StartDate>
        <RelativeStopDate>-P02D</RelativeStopDate>
      </TimeSpan>
      <Cadence>PT96S</Cadence>
    </TemporalDescription>
    <ObservedRegion>Heliosphere</ObservedRegion>
    <ObservedRegion>Earth.NearSurface.Plasmasphere</ObservedRegion>
    <ObservedRegion>Earth.Magnetosphere</ObservedRegion>
    <ObservedRegion>Earth.Magnetosphere.Magnetotail</ObservedRegion>
    <ObservedRegion>Earth.Magnetosphere.Main</ObservedRegion>
    <ObservedRegion>Heliosphere.NearEarth</ObservedRegion>
    <ObservedRegion>Heliosphere.Inner</ObservedRegion>
    <ObservedRegion>Earth.Magnetosheath</ObservedRegion>
    <Caveats>There are several variables in the data files which are not populated in the publicly available data product. These variables include EDENS, TEMP, QP, QM, QT, REDF, and VSW.</Caveats>
    <Parameter>
      <Name>Epoch</Name>
      <ParameterKey>Epoch</ParameterKey>
      <Description>Number of milliseconds since CDF_EPOCH: 0000-01-01T00:00:00.000.</Description>
      <Units>ms</Units>
      <UnitsConversion>1e-3&gt;s</UnitsConversion>
      <Support>
        <SupportQuantity>Temporal</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>Unix Time</Name>
      <ParameterKey>TIME</ParameterKey>
      <Description>Time since 1970-01-01T00:00:00Z in seconds</Description>
      <Units>s</Units>
      <Support>
        <SupportQuantity>Temporal</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>Electron Flux</Name>
      <ParameterKey>FLUX</ParameterKey>
      <Description>Electron flux is a 15 by 8 dimensional array. The first dimension corresponds to 15 time dependent energy bands (parameter ENERGY, centered from ~5 eV to ~1150 eV). The 2nd dimension corresponds to 8 time dependent pitch angles (parameter PANGLE, ranging from ~15 deg to ~165 deg) relative to the magnetic field direction as averaged over the 96 sec (or other mode-dependent cadence) interval. Pitch angle distributions are calculated using all EESA look directions (ie., the whole cone), not just those in the spin plane.</Description>
      <Units>#/(cm^2*ster*eV*s)</Units>
      <Structure>
        <Size>15 8</Size>
      </Structure>
      <Particle>
        <ParticleType>Electron</ParticleType>
        <ParticleQuantity>NumberFlux</ParticleQuantity>
        <EnergyRange>
          <Low>3</Low>
          <High>30000</High>
          <Units>eV</Units>
        </EnergyRange>
        <AzimuthalAngleRange>
          <Low>0</Low>
          <High>360</High>
          <Units>degrees</Units>
        </AzimuthalAngleRange>
        <PolarAngleRange>
          <Low>-45</Low>
          <High>45</High>
          <Units>degrees</Units>
        </PolarAngleRange>
      </Particle>
    </Parameter>
    <Parameter>
      <Name>Electron Energy</Name>
      <ParameterKey>ENERGY</ParameterKey>
      <Description>Average electron energy</Description>
      <Units>eV</Units>
      <Structure>
        <Size>15</Size>
        <Description>The 15 average electron energies for this pitch angle distribution</Description>
      </Structure>
      <Particle>
        <ParticleType>Electron</ParticleType>
        <Qualifier>Average</Qualifier>
        <ParticleQuantity>Energy</ParticleQuantity>
        <EnergyRange>
          <Low>3</Low>
          <High>30000</High>
          <Units>eV</Units>
        </EnergyRange>
      </Particle>
    </Parameter>
    <Parameter>
      <Name>Electron Pitch Angle</Name>
      <ParameterKey>PANGLE</ParameterKey>
      <Description>Average electron pitch angle with respect to the magnetic field vector</Description>
      <Units>degree</Units>
      <Structure>
        <Size>8</Size>
        <Description>The 8 average pitch angles for this pitch angle distribution</Description>
      </Structure>
      <Particle>
        <ParticleType>Electron</ParticleType>
        <Qualifier>DirectionAngle</Qualifier>
        <ParticleQuantity>ArrivalDirection</ParticleQuantity>
        <EnergyRange>
          <Low>3</Low>
          <High>30000</High>
          <Units>eV</Units>
        </EnergyRange>
      </Particle>
    </Parameter>
    <Parameter>
      <Name>Magnetic field vector in GSE coordinates</Name>
      <ParameterKey>MAGF</ParameterKey>
      <Description>Magnetic field vector in GSE coordinates, as averaged over higher resolutuion measurements during the 96s interval (or other instrument-mode-dependent interval)</Description>
      <Units>nT</Units>
      <CoordinateSystem>
        <CoordinateRepresentation>Cartesian</CoordinateRepresentation>
        <CoordinateSystemName>GSE</CoordinateSystemName>
      </CoordinateSystem>
      <Structure>
        <Size>3</Size>
        <Element>
          <Name>Bx</Name>
          <Index>1</Index>
        </Element>
        <Element>
          <Name>By</Name>
          <Index>2</Index>
        </Element>
        <Element>
          <Name>Bz</Name>
          <Index>3</Index>
        </Element>
      </Structure>
      <Field>
        <Qualifier>Average</Qualifier>
        <Qualifier>Vector</Qualifier>
        <FieldQuantity>Magnetic</FieldQuantity>
      </Field>
    </Parameter>
  </NumericalData>
</Spase>