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  <NumericalData>
    <ResourceID>spase://NASA/NumericalData/SOHO/CELIAS/SEM/CDF/PT15S</ResourceID>
    <NamingAuthority>NASA</NamingAuthority>
    <ResourceType>NumericalData</ResourceType>
    <ResourceHeader>
      <ResourceName>SOHO Charge, Element, and Isotope Analysis System (CELIAS) Solar Extreme-Ultra-Violet Monitor (SEM) 15-second Data in CDF Format</ResourceName>
      <DOI>https://doi.org/10.48322/perq-dq14</DOI>
      <ReleaseDate>2025-12-04T13:31:28Z</ReleaseDate>
      <RevisionHistory>
        <RevisionEvent>
          <ReleaseDate>2024-01-22T12:34:56.789</ReleaseDate>
          <Note>Only known prior ReleaseDate of the metadata</Note>
        </RevisionEvent>
        <RevisionEvent>
          <ReleaseDate>2024-01-22T12:34:56.789</ReleaseDate>
          <Note>Added DOI and PublicationInfo minted by AK, added and updated URLs, reviewed by AK 20240122</Note>
        </RevisionEvent>
        <RevisionEvent>
          <ReleaseDate>2025-10-03T10:49:10Z</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>2025-12-04T13:31:28Z</ReleaseDate>
          <Note>Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB</Note>
        </RevisionEvent>
      </RevisionHistory>
      <Description>The data include 15-second average raw count rates in Channels 1 - 3 and First Order (26 - 34 nm, average of Ch1 and Ch3) and Central Order (0.1 - 50 nm, Ch2) photon fluxes, as well as SOHO Heliocentric location and distance. This CDF dataset was converted from the original ASCII dataset at the SOHO Archive https://soho.nascom.nasa.gov/data/archive.html. The original ASCII dataset Version 4 science product release notes are available at https://lasp.colorado.edu/eve/data_access/eve_data/lasp_soho_sem_data/long/LASP_SOHO_SEM_release_notes_v4.pdf. Description of the CELIAS-SEM instrument and scientific scope can be found on the CELIAS home page http://www2.physik.uni-kiel.de/SOHO-CELIAS/ and on the SOHO home page https://sohowww.nascom.nasa.gov/. CELIAS Instrument Publication: Hovestadt, D., Hilchenbach, M., Bürgi, A. et al. CELIAS - Charge, Element and Isotope Analysis System for SOHO, Sol Phys 162, 441–481 (1995), https://doi.org/10.1007/BF00733436.</Description>
      <Acknowledgement>Please acknowledge the Principal Investigator R. Wimmer-Schweingruber for use of these data.</Acknowledgement>
      <PublicationInfo>
        <Authors>Jones, Andrew; Woodraska, Don</Authors>
        <PublicationDate>2023-01-01T00:00:00</PublicationDate>
        <PublishedBy>Space Physics Data Facility</PublishedBy>
      </PublicationInfo>
      <Contact>
        <PersonID>spase://SMWG/Person/Robert.F.Wimmer-Schweingruber</PersonID>
        <Role>PrincipalInvestigator</Role>
      </Contact>
      <Contact>
        <PersonID>spase://SMWG/Person/Andrew.Jones</PersonID>
        <Role>CoPI</Role>
      </Contact>
      <Contact>
        <PersonID>spase://SMWG/Person/Don.Woodraska</PersonID>
        <Role>CoPI</Role>
      </Contact>
      <Contact>
        <PersonID>spase://SMWG/Person/Andriy.Koval</PersonID>
        <Role>MetadataContact</Role>
      </Contact>
      <InformationURL>
        <Name>SOHO Mission Home Page</Name>
        <URL>https://sohowww.nascom.nasa.gov/</URL>
      </InformationURL>
      <InformationURL>
        <Name>CELIAS Instrument Home Page</Name>
        <URL>https://www.ieap.uni-kiel.de/et/soho/celias/</URL>
      </InformationURL>
      <InformationURL>
        <Name>CELIAS Instrument DOI</Name>
        <URL>https://doi.org/10.5270/esa-iey8z2h</URL>
      </InformationURL>
      <InformationURL>
        <Name>CELIAS Instrument Publication</Name>
        <URL>https://doi.org/10.1007/BF00733436</URL>
        <Description>Hovestadt, D., Hilchenbach, M., Bürgi, A. et al. CELIAS - Charge, Element and Isotope Analysis System for SOHO. Sol Phys 162, 441–481 (1995)</Description>
      </InformationURL>
      <InformationURL>
        <Name>Version 4 Science Product Release Notes</Name>
        <URL>https://lasp.colorado.edu/eve/data_access/eve_data/lasp_soho_sem_data/long/LASP_SOHO_SEM_release_notes_v4.pdf</URL>
      </InformationURL>
      <InformationURL>
        <Name>The SOHO Archive</Name>
        <URL>https://soho.nascom.nasa.gov/data/archive.html</URL>
      </InformationURL>
    </ResourceHeader>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb</RepositoryID>
      <Availability>Online</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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      </RightsList>
      <AccessURL>
        <Name>FTPS from SPDF (not with most browsers)</Name>
        <URL>ftps://spdf.gsfc.nasa.gov/pub/data/soho/celias/sem_15s/</URL>
        <Description>Access to Data in CDF Format via ftps from SPDF</Description>
      </AccessURL>
      <AccessURL>
        <Name>HTTPS from SPDF</Name>
        <URL>https://spdf.gsfc.nasa.gov/pub/data/soho/celias/sem_15s/</URL>
        <Description>Access to Data in CDF Format via https from SPDF</Description>
      </AccessURL>
      <AccessURL>
        <Name>CDAWeb</Name>
        <URL>https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=SOHO_CELIAS-SEM_15S&amp;index=sp_phys</URL>
        <ProductKey>SOHO_CELIAS-SEM_15S</ProductKey>
        <Description>Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb</Description>
      </AccessURL>
      <Format>CDF</Format>
      <Encoding>None</Encoding>
      <Acknowledgement>Please acknowledge the Principal Investigator R. Wimmer-Schweingruber. Please also acknowledge the Data Providers and CDAWeb when using these data.</Acknowledgement>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb</RepositoryID>
      <Availability>Online</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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      </RightsList>
      <AccessURL>
        <Name>CDAWeb HAPI Server</Name>
        <URL>https://cdaweb.gsfc.nasa.gov/hapi</URL>
        <Style>HAPI</Style>
        <ProductKey>SOHO_CELIAS-SEM_15S</ProductKey>
        <Description>Web Service to this product using the HAPI interface</Description>
      </AccessURL>
      <Format>CSV</Format>
      <Acknowledgement>Please acknowledge the Principal Investigator R. Wimmer-Schweingruber. Please also acknowledge the Data Providers and CDAWeb when using these data.</Acknowledgement>
    </AccessInformation>
    <ProcessingLevel>Calibrated</ProcessingLevel>
    <InstrumentID>spase://SMWG/Instrument/SOHO/CELIAS</InstrumentID>
    <MeasurementType>Radiance</MeasurementType>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>1995-12-21T00:00:05</StartDate>
        <RelativeStopDate>-P1M</RelativeStopDate>
      </TimeSpan>
      <Cadence>PT15S</Cadence>
    </TemporalDescription>
    <ObservedRegion>Heliosphere.NearEarth</ObservedRegion>
    <Parameter>
      <Name>Epoch</Name>
      <ParameterKey>Epoch</ParameterKey>
      <Description>Centered Time, number of milliseconds since 01-Jan-0000 00:00:00.000</Description>
      <Caveats>This Parameter exhibits an increasing Monotonic Progression</Caveats>
      <Units>ms</Units>
      <UnitsConversion>1.0e-3&gt;s</UnitsConversion>
      <RenderingHints>
        <AxisLabel>Epoch</AxisLabel>
      </RenderingHints>
      <ValidMin>01-Jan-1995 00:00:00.000</ValidMin>
      <ValidMax>01-Jan-2050 00:00:00.000</ValidMax>
      <FillValue>31-Dec-9999 23:59:59.999</FillValue>
      <Support>
        <SupportQuantity>Temporal</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>Chan 1 count rate</Name>
      <Set>Time series defined by using: Epoch</Set>
      <ParameterKey>CH1</ParameterKey>
      <Description>Channel 1 15-second average (raw) count rate</Description>
      <Cadence>PT15S</Cadence>
      <Units>s^-1</Units>
      <RenderingHints>
        <DisplayType>TimeSeries</DisplayType>
        <AxisLabel>CH1 count rate</AxisLabel>
        <ValueFormat>F10.3</ValueFormat>
      </RenderingHints>
      <ValidMin>0.0</ValidMin>
      <ValidMax>100000.0</ValidMax>
      <FillValue>-1.0e+31</FillValue>
      <Support>
        <SupportQuantity>Other</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>Chan 2 count rate</Name>
      <Set>Time series defined by using: Epoch</Set>
      <ParameterKey>CH2</ParameterKey>
      <Description>Channel 2 15-second average (raw) count rate</Description>
      <Cadence>PT15S</Cadence>
      <Units>s^-1</Units>
      <RenderingHints>
        <DisplayType>TimeSeries</DisplayType>
        <AxisLabel>CH2 count rate</AxisLabel>
        <ValueFormat>F10.3</ValueFormat>
      </RenderingHints>
      <ValidMin>0.0</ValidMin>
      <ValidMax>100000.0</ValidMax>
      <FillValue>-1.0e+31</FillValue>
      <Support>
        <SupportQuantity>Other</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>Chan 3 count rate</Name>
      <Set>Time series defined by using: Epoch</Set>
      <ParameterKey>CH3</ParameterKey>
      <Description>Channel 3 15-second average (raw) count rate</Description>
      <Cadence>PT15S</Cadence>
      <Units>s^-1</Units>
      <RenderingHints>
        <DisplayType>TimeSeries</DisplayType>
        <AxisLabel>CH3 count rate</AxisLabel>
        <ValueFormat>F10.3</ValueFormat>
      </RenderingHints>
      <ValidMin>0.0</ValidMin>
      <ValidMax>100000.0</ValidMax>
      <FillValue>-1.0e+31</FillValue>
      <Support>
        <SupportQuantity>Other</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>First Order Flux</Name>
      <Set>Time series defined by using: Epoch</Set>
      <ParameterKey>first_order_flux</ParameterKey>
      <Description>First Order Flux at 1 AU (26-34 nm, average of CH1 and CH3)</Description>
      <Cadence>PT15S</Cadence>
      <Units>photons cm^-2 s^-1</Units>
      <RenderingHints>
        <DisplayType>TimeSeries</DisplayType>
        <AxisLabel>First Order Flux</AxisLabel>
        <ValueFormat>E11.5E2</ValueFormat>
      </RenderingHints>
      <ValidMin>0.0</ValidMin>
      <ValidMax>1.0e+20</ValidMax>
      <FillValue>-1.0e+31</FillValue>
      <Wave>
        <WaveType>Photon</WaveType>
        <WaveQuantity>Intensity</WaveQuantity>
        <WavelengthRange>
          <Low>26</Low>
          <High>34</High>
          <Units>nm</Units>
        </WavelengthRange>
      </Wave>
    </Parameter>
    <Parameter>
      <Name>Central Order Flux</Name>
      <Set>Time series defined by using: Epoch</Set>
      <ParameterKey>central_order_flux</ParameterKey>
      <Description>Central Order Flux at 1 AU (0.1 - 50 nm, CH2)</Description>
      <Cadence>PT15S</Cadence>
      <Units>photons cm^-2 s^-1</Units>
      <RenderingHints>
        <DisplayType>TimeSeries</DisplayType>
        <AxisLabel>Central Order Flux</AxisLabel>
        <ValueFormat>E11.5E2</ValueFormat>
      </RenderingHints>
      <ValidMin>0.0</ValidMin>
      <ValidMax>1.0e+20</ValidMax>
      <FillValue>-1.0e+31</FillValue>
      <Wave>
        <WaveType>Photon</WaveType>
        <WaveQuantity>Intensity</WaveQuantity>
        <WavelengthRange>
          <Low>0.1</Low>
          <High>50</High>
          <Units>nm</Units>
        </WavelengthRange>
      </Wave>
    </Parameter>
    <Parameter>
      <Name>Heliocentric location</Name>
      <Set>Time series defined by using: Epoch</Set>
      <ParameterKey>HC_POS</ParameterKey>
      <Description>SOHO Heliocentric location</Description>
      <Cadence>PT15S</Cadence>
      <Units>km</Units>
      <CoordinateSystem>
        <CoordinateRepresentation>Cartesian</CoordinateRepresentation>
        <CoordinateSystemName>SE</CoordinateSystemName>
      </CoordinateSystem>
      <RenderingHints>
        <DisplayType>TimeSeries</DisplayType>
        <ValueFormat>E12.5E2</ValueFormat>
      </RenderingHints>
      <Structure>
        <Size>3</Size>
        <Element>
          <Name>X</Name>
          <Index>1</Index>
        </Element>
        <Element>
          <Name>Y</Name>
          <Index>2</Index>
        </Element>
        <Element>
          <Name>Z</Name>
          <Index>3</Index>
        </Element>
      </Structure>
      <ValidMin>-2.0e+08</ValidMin>
      <ValidMax>2.0e+08</ValidMax>
      <FillValue>-1.0e+31</FillValue>
      <Support>
        <Qualifier>Vector</Qualifier>
        <SupportQuantity>Positional</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>Heliocentric distance (km)</Name>
      <Set>Time series defined by using: Epoch</Set>
      <ParameterKey>HC_R</ParameterKey>
      <Description>SOHO heliocentric distance (km)</Description>
      <Cadence>PT15S</Cadence>
      <Units>km</Units>
      <CoordinateSystem>
        <CoordinateRepresentation>Spherical</CoordinateRepresentation>
        <CoordinateSystemName>SE</CoordinateSystemName>
      </CoordinateSystem>
      <RenderingHints>
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        <AxisLabel>R</AxisLabel>
        <ValueFormat>E12.5E2</ValueFormat>
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      <ValidMin>0.0</ValidMin>
      <ValidMax>2.0e+08</ValidMax>
      <FillValue>-1.0e+31</FillValue>
      <Support>
        <Qualifier>Magnitude</Qualifier>
        <SupportQuantity>Positional</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>Heliocentric distance (AU)</Name>
      <Set>Time series defined by using: Epoch</Set>
      <ParameterKey>R_AU</ParameterKey>
      <Description>SOHO heliocentric distance (AU)</Description>
      <Cadence>PT15S</Cadence>
      <Units>AU</Units>
      <CoordinateSystem>
        <CoordinateRepresentation>Spherical</CoordinateRepresentation>
        <CoordinateSystemName>SE</CoordinateSystemName>
      </CoordinateSystem>
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        <ValueFormat>F8.6</ValueFormat>
      </RenderingHints>
      <ValidMin>0.0</ValidMin>
      <ValidMax>2.0</ValidMax>
      <FillValue>-1.0e+31</FillValue>
      <Support>
        <Qualifier>Magnitude</Qualifier>
        <SupportQuantity>Positional</SupportQuantity>
      </Support>
    </Parameter>
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