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  <Version>2.4.1</Version>
  <NumericalData>
    <ResourceID>spase://CNES/NumericalData/CDPP-AMDA/Helios1/MAG/helios1-mag-corefit</ResourceID>
    <ResourceHeader>
      <ResourceName>corefit : 40s</ResourceName>
      <AlternateName>Helios corefit data product</AlternateName>
      <ReleaseDate>2018-11-08T10:12:03Z</ReleaseDate>
      <Description> 
</Description>
      <Acknowledgement>Please acknowledge Helios E2, E3 team and David Stansby in any publication</Acknowledgement>
      <Contact>
        <PersonID>spase://CNES/Person/CDPP-AMDA/David.Stansby</PersonID>

        <Role>DataProducer</Role>
      </Contact>

    </ResourceHeader>
    <AccessInformation>

      <RepositoryID>spase://SMWG/Repository/CDPP/AMDA</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <AccessURL>
        <Name>CDPP/AMDA HAPI Server</Name>

        <URL>https://amda.irap.omp.eu/service/hapi</URL>

        <Style>HAPI</Style>

        <ProductKey>helios1-mag-corefit</ProductKey>

        <Description>Web Service to this product using the HAPI interface.</Description>
      </AccessURL>
      <Format>CSV</Format>

      <Acknowledgement>Thank you for acknowledging the use of AMDA in publications with wording like "Data analysis was performed with the AMDA science analysis system provided by the Centre de Données de la Physique des Plasmas (CDPP) supported by CNRS, CNES, Observatoire de Paris and Université Paul Sabatier, Toulouse". See the Rules of the road at https://amda.cdpp.eu/help/policy.html . Please acknowledge the Data Providers.</Acknowledgement>

    </AccessInformation>

    <AccessInformation>

      <RepositoryID>spase://SMWG/Repository/CDPP/AMDA</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <AccessURL>
        <Name>CDPP/AMDA Web application</Name>

        <URL>https://amda.cdpp.eu</URL>

        <Description>Access to Data via CDPP/AMDA Web application.</Description>
      </AccessURL>
      <Format>CSV</Format>
      <Format>VOTable</Format>
      <Format>CDF</Format>
      <Format>PNG</Format>

      <Acknowledgement>Thank you for acknowledging the use of AMDA in publications with wording like "Data analysis was performed with the AMDA science analysis system provided by the Centre de Données de la Physique des Plasmas (CDPP) supported by CNRS, CNES, Observatoire de Paris and Université Paul Sabatier, Toulouse". See the Rules of the road at https://amda.cdpp.eu/help/policy.html . Please acknowledge the Data Providers.</Acknowledgement>

    </AccessInformation>

    <ProviderName>Helios Data Archive</ProviderName>

    <ProviderResourceName>Helios corefit data product</ProviderResourceName>

    <InstrumentID>spase://CNES/Instrument/CDPP-AMDA/Helios1/MAG</InstrumentID>
    <MeasurementType>MagneticField</MeasurementType>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>1974-12-12T01:38:10Z</StartDate>
        <StopDate>1984-08-15T23:33:14Z</StopDate>
      </TimeSpan>
      <CadenceMin>PT40S</CadenceMin>
      <CadenceMax>PT300S</CadenceMax>
    </TemporalDescription>
    <ObservedRegion>Heliosphere</ObservedRegion>
    <Caveats>

Mag instrument flag takes the following values: 
* 1: E3 magnetometer data used; 
* 2: E2 magnetometer data used

Magnetic field standard deviation is calculated as sqrt(σ^2Bx + σ^2By + σ^2Bz), with individual standard
deviations taken over the interval that the ion distribution function was measured

</Caveats>

    <Parameter>
      <Name>mag_instr</Name>
      <ParameterKey>helios1_mag_instr</ParameterKey>
      <Description>Magnetometer being used for data. 1=E3, 2=E2</Description>

      <FillValue>-1</FillValue>
      <Support>
        <SupportQuantity>InstrumentMode</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>sigma b</Name>
      <ParameterKey>helios1_b_std</ParameterKey>

      <Units>nT</Units>

      <Field>
        <FieldQuantity>Magnetic</FieldQuantity>
      </Field>
    </Parameter>
    <Parameter>
      <Name>b_se</Name>
      <ParameterKey>helios1_b_rtn</ParameterKey>
      <Description>magnetic field in solar ecliptic spacecraft centered coordinates (SE)</Description>

      <Units>nT</Units>

      <Structure>
        <Size>3</Size>
        <Element>
          <Name>r</Name>
          <Index>1</Index>
          <ParameterKey>helios1_b_rtn(0)</ParameterKey>

        </Element>

        <Element>
          <Name>t</Name>
          <Index>2</Index>
          <ParameterKey>helios1_b_rtn(1)</ParameterKey>

        </Element>

        <Element>
          <Name>n</Name>
          <Index>3</Index>
          <ParameterKey>helios1_b_rtn(2)</ParameterKey>

        </Element>

      </Structure>
      <Field>
        <Qualifier>Vector</Qualifier>
        <FieldQuantity>Magnetic</FieldQuantity>
      </Field>
    </Parameter>
    <Parameter>
      <Name>|b|</Name>
      <ParameterKey>helios1_b_mag</ParameterKey>

      <Units>nT</Units>

      <Field>
        <Qualifier>Average</Qualifier>
        <FieldQuantity>Magnetic</FieldQuantity>
      </Field>
    </Parameter>
  </NumericalData>

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