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      <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>
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  <NumericalData>
    <ResourceID>spase://NASA/NumericalData/Pioneer11/TRD/PT30M</ResourceID>
    <NamingAuthority>NASA</NamingAuthority>
    <ResourceType>NumericalData</ResourceType>
    <ResourceHeader>
      <ResourceName>Pioneer 11 Trapped Radiation Detector (TRD) 30-m Count Rate Summary Data</ResourceName>
      <ReleaseDate>2025-12-04T13:30:56Z</ReleaseDate>
      <RevisionHistory>
        <RevisionEvent>
          <ReleaseDate>2021-03-11T18:39:11Z</ReleaseDate>
          <Note>Only known prior ReleaseDate of the metadata</Note>
        </RevisionEvent>
        <RevisionEvent>
          <ReleaseDate>2025-11-14T16:02:54Z</ReleaseDate>
          <Note>Added PublicationInfo. Added ResourceType and NamingAuthority. ZCB</Note>
        </RevisionEvent>
        <RevisionEvent>
          <ReleaseDate>2025-12-04T13:30:56Z</ReleaseDate>
          <Note>Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB</Note>
        </RevisionEvent>
      </RevisionHistory>
      <Description>This ASCII data set contains 30-min count rates for 
21 "pulse-counting" channels from a Cerenkov counter (which measures,
via 3 discrimination levels, electrons &gt;6 MeV plus nuclei &gt;480 MeV/n,
electrons &gt;9 MeV plus nuclei &gt;550 MeV/n, and electrons &gt;13 MeV plus 
nuclei &gt;650 MeV/n), an electron scatter detector (nuclei &gt;80 MeV/n
and electrons &gt;0.16, &gt;0.255, &gt;0.46 MeV), and a minimizing ionizing 
particle counter (nuclei &gt;80 MeV and electrons &gt;35 MeV.  The data set 
also contains 30-min averaged currents from the Cerenkov counter and 
two scintillators, spacecraft position and attitude data, and various 
other statistical and housekeeping data.  The electrometer-based currents 
data are not reliable.  The data are all for mission cruise phases and 
not planetary encounters.</Description>
      <Acknowledgement>Please acknowledge the PI, R. Walker Fillius,
and the GSFC Space Physics Data Facility.</Acknowledgement>
      <PublicationInfo>
        <Authors>Fillius, R. W.</Authors>
        <PublicationDate>2025-11-14T16:02:54Z</PublicationDate>
        <PublishedBy>Space Physics Data Facility</PublishedBy>
      </PublicationInfo>
      <Contact>
        <PersonID>spase://SMWG/Person/R.Walker.Fillius</PersonID>
        <Role>PrincipalInvestigator</Role>
      </Contact>
      <InformationURL>
        <Name>Readme at SPDF</Name>
        <URL>https://spdf.gsfc.nasa.gov/pub/data/pioneer/pioneer11/particle/trd/ip_30min_ascii/voldesc.sfdu</URL>
        <Description>Voldesc.sfdu file gerenated by PI team</Description>
      </InformationURL>
      <PriorID>spase://VEPO/NumericalData/Pioneer11/TRD/PT30M</PriorID>
      <PriorID>spase://VSPO/NumericalData/Pioneer11/TRD/PT30M</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/pioneer/pioneer11/particle/trd/ip_30min_ascii/</URL>
      </AccessURL>
      <AccessURL>
        <Name>HTTPS from SPDF</Name>
        <URL>https://spdf.gsfc.nasa.gov/pub/data/pioneer/pioneer11/particle/trd/ip_30min_ascii/</URL>
        <Description>In CDF via HTTP from SPDF</Description>
      </AccessURL>
      <Format>Text</Format>
      <DataExtent>
        <Quantity>237</Quantity>
        <Units>MB</Units>
      </DataExtent>
      <Acknowledgement>Please acknowledge the PI, R. Walker Fillius,
and the GSFC Space Physics Data Facility</Acknowledgement>
    </AccessInformation>
    <InstrumentID>spase://SMWG/Instrument/Pioneer11/TRD</InstrumentID>
    <MeasurementType>EnergeticParticles</MeasurementType>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>1973-04-16T00:00:00</StartDate>
        <StopDate>1991-08-31T00:00:00</StopDate>
      </TimeSpan>
      <Cadence>PT30M</Cadence>
    </TemporalDescription>
    <ObservedRegion>Heliosphere.Outer</ObservedRegion>
    <Parameter>
      <Name>Particle counts for 21 channels over 30 minutes</Name>
      <ParameterKey>Column_106ff</ParameterKey>
      <Description>Counts registered for each of the 21 channels 
(3 discriminator levels x 3 voltage modes for each of 2 sensors,
plus 3 discriminator levels for the third sensor), summed over each 
reading made during the 30-min interval</Description>
      <Caveats>See the information URL cited above</Caveats>
      <Cadence>PT30M</Cadence>
      <Units>Counts</Units>
      <Structure>
        <Size>21</Size>
        <Description>21 counts as described above</Description>
      </Structure>
      <Particle>
        <ParticleType>Ion</ParticleType>
        <ParticleQuantity>Counts</ParticleQuantity>
        <EnergyRange>
          <Low>80</Low>
          <High>650</High>
          <Units>MeV</Units>
        </EnergyRange>
      </Particle>
    </Parameter>
    <Parameter>
      <Name>Accumulation times for 21 channels over 30 minutes</Name>
      <ParameterKey>Column_127ff</ParameterKey>
      <Description>Durations over which counts were registered for each 
of the 21 channels during this interval</Description>
      <Cadence>PT30M</Cadence>
      <Units>msec</Units>
      <Structure>
        <Size>21</Size>
        <Description>21 durations as described above</Description>
      </Structure>
      <Support>
        <SupportQuantity>Temporal</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>Numbers of measurements during the 30 minutes</Name>
      <ParameterKey>Column_85ff</ParameterKey>
      <Description>Numbers of readings of counts for each of 
the 21 channels during this 30-min interval</Description>
      <Cadence>PT30M</Cadence>
      <Structure>
        <Size>21</Size>
        <Description>21 numbers of measurements as described above</Description>
      </Structure>
      <Support>
        <SupportQuantity>Other</SupportQuantity>
      </Support>
    </Parameter>
  </NumericalData>
</Spase>
