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  <NumericalData>
    <ResourceID>spase://NASA/NumericalData/CRRES/MAG/PT30S</ResourceID>
    <NamingAuthority>NASA</NamingAuthority>
    <ResourceType>NumericalData</ResourceType>
    <ResourceHeader>
      <ResourceName>CRRES 30s magnetic field data</ResourceName>
      <AlternateName>CRRES MAG data</AlternateName>
      <DOI>https://doi.org/10.48322/dh28-sc29</DOI>
      <ReleaseDate>2025-12-04T13:29:05Z</ReleaseDate>
      <RevisionHistory>
        <RevisionEvent>
          <ReleaseDate>2025-05-01T21:14:30Z</ReleaseDate>
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        <RevisionEvent>
          <ReleaseDate>2025-11-14T16:03:09Z</ReleaseDate>
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      <Description>This data set contains spin fitted magnetic field vectors and magnitudes from the CRRES tri-axial fluxgate magnetometer data. The magnetic field vectors are at 30 s resolution and in the GSE coordinate system.</Description>
      <Acknowledgement>NASA; Department of Defense-Department of the Air Force (United States); AFRL; Dr. Howard J. Singer; Dr. E. Gary Mullen</Acknowledgement>
      <PublicationInfo>
        <Authors>Singer, Howard J.; Mullen, E. G.</Authors>
        <PublicationDate>2025-11-14T16:03:09Z</PublicationDate>
        <PublishedBy>University of California, Los Angeles</PublishedBy>
      </PublicationInfo>
      <Contact>
        <PersonID>spase://SMWG/Person/Howard.J.Singer</PersonID>
        <Role>PrincipalInvestigator</Role>
      </Contact>
      <Contact>
        <PersonID>spase://SMWG/Person/E.Gary.Mullen</PersonID>
        <Role>PrincipalInvestigator</Role>
      </Contact>
      <Contact>
        <PersonID>spase://SMWG/Person/James.M.Weygand</PersonID>
        <Role>MetadataContact</Role>
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      <InformationURL>
        <Name>CRRES Fluxgate Magnetometer Instrument</Name>
        <URL>https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1990-065A-19</URL>
        <Description>NASA NSSDC CRRES fluxgate magnetometer experiment details</Description>
      </InformationURL>
      <Association>
        <AssociationID>spase://SMWG/Observatory/CRRES</AssociationID>
        <AssociationType>ObservedBy</AssociationType>
      </Association>
      <PriorID>spase://VMO/NumericalData/CRRES/MAG/PT30S</PriorID>
      <PriorID>spase://VSPO/NumericalData/CRRES/MAG/PT30S</PriorID>
    </ResourceHeader>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/UCLA/VMO</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <AccessURL>
        <Name>Virtual Magnetospheric Observatory</Name>
        <URL>http://vmo.igpp.ucla.edu/data1/CRRES/MAG/PT30S/</URL>
      </AccessURL>
      <Format>Text</Format>
      <Encoding>ASCII</Encoding>
      <Acknowledgement>NASA; Department of Defense-Department of the Air Force (United States); AFRL; Dr. Howard J. Singer; Dr. E. Gary Mullen</Acknowledgement>
    </AccessInformation>
    <ProcessingLevel>Calibrated</ProcessingLevel>
    <ProviderResourceName>CRRES MAG Tri-axial fluxgate magnetometer</ProviderResourceName>
    <ProviderProcessingLevel>Level-2</ProviderProcessingLevel>
    <InstrumentID>spase://SMWG/Instrument/CRRES/MAG</InstrumentID>
    <MeasurementType>MagneticField</MeasurementType>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>1990-10-11T00:00:00.000</StartDate>
        <StopDate>1991-10-13T00:00:00.000</StopDate>
        <Note>Time format in data files is: Year-Month-Day Hour Minute Second (YYYY-MM-DDTHH:MM:SS.SSS)</Note>
      </TimeSpan>
      <Cadence>PT30S</Cadence>
    </TemporalDescription>
    <ObservedRegion>Earth.Magnetosphere.Main</ObservedRegion>
    <ObservedRegion>Earth.Magnetosphere.RadiationBelt</ObservedRegion>
    <Keyword>30 s</Keyword>
    <Keyword>Radiation Belt</Keyword>
    <Keyword>Inner Magnetosphere</Keyword>
    <Keyword>Magnetosphere</Keyword>
    <Keyword>Radiation Belt</Keyword>
    <Keyword>Plasmasphere</Keyword>
    <Keyword>magnetic fields</Keyword>
    <Keyword>magnetometer</Keyword>
    <Parameter>
      <Name>Universal Time</Name>
      <ParameterKey>Time</ParameterKey>
      <Description>Universal Time columns from left to right are:  year month day hour minute sec in the format of yyyy mm dd hh mm ss.</Description>
      <Caveats>Flag=9999-12-31T23:59:59Z</Caveats>
      <Cadence>PT30S</Cadence>
      <CoordinateSystem>
        <CoordinateRepresentation>Cartesian</CoordinateRepresentation>
        <CoordinateSystemName>GSE</CoordinateSystemName>
      </CoordinateSystem>
      <Structure>
        <Size>6</Size>
        <Description>Universal Time expressed using a 6-column day, month, year, hour, minute, second representation</Description>
        <Element>
          <Name>Year</Name>
          <Index>1</Index>
          <ParameterKey>Year</ParameterKey>
        </Element>
        <Element>
          <Name>Month</Name>
          <Index>2</Index>
          <ParameterKey>Month</ParameterKey>
        </Element>
        <Element>
          <Name>Day</Name>
          <Index>3</Index>
          <ParameterKey>Day</ParameterKey>
        </Element>
        <Element>
          <Name>Hour</Name>
          <Index>4</Index>
          <ParameterKey>Hour</ParameterKey>
        </Element>
        <Element>
          <Name>Minute</Name>
          <Index>5</Index>
          <ParameterKey>Minute</ParameterKey>
        </Element>
        <Element>
          <Name>Second</Name>
          <Index>6</Index>
          <ParameterKey>Second</ParameterKey>
        </Element>
      </Structure>
      <Support>
        <SupportQuantity>Temporal</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>CRRES Spin Fitted Magnetic Field Vector at 30 s Resolution</Name>
      <ParameterKey>CRRES Spin Fitted Magnetic Field Vector</ParameterKey>
      <Description>Spin fitted magnetic field vector for CRRES in  GSE coordinates in units of nT</Description>
      <Caveats>Flags=99999</Caveats>
      <Cadence>PT30S</Cadence>
      <Units>nT</Units>
      <CoordinateSystem>
        <CoordinateRepresentation>Cartesian</CoordinateRepresentation>
        <CoordinateSystemName>GSE</CoordinateSystemName>
      </CoordinateSystem>
      <Structure>
        <Size>3</Size>
        <Element>
          <Name>BX-GSE</Name>
          <Qualifier>Component.I</Qualifier>
          <Index>1</Index>
          <ParameterKey>Bx</ParameterKey>
        </Element>
        <Element>
          <Name>BY-GSE</Name>
          <Qualifier>Component.J</Qualifier>
          <Index>2</Index>
          <ParameterKey>By</ParameterKey>
        </Element>
        <Element>
          <Name>BZ-GSE</Name>
          <Qualifier>Component.K</Qualifier>
          <Index>3</Index>
          <ParameterKey>Bz</ParameterKey>
        </Element>
      </Structure>
      <Field>
        <Qualifier>Vector</Qualifier>
        <FieldQuantity>Magnetic</FieldQuantity>
      </Field>
    </Parameter>
    <Parameter>
      <Name>CRRES Spin Fitted Fluxgate Magnetometer Magnitude at 30 s resolution</Name>
      <ParameterKey>Spin Fitted Magnetic field magnitude</ParameterKey>
      <Description>CRRES spin fitted fluxgate magnetometer magnitude at 30 s resolution in units of nT.</Description>
      <Caveats>Flags=99999</Caveats>
      <Cadence>PT30S</Cadence>
      <Units>nT</Units>
      <Field>
        <Qualifier>Magnitude</Qualifier>
        <FieldQuantity>Magnetic</FieldQuantity>
      </Field>
    </Parameter>
  </NumericalData>
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