<?xml version="1.0"?>
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  <Version>2.3.0</Version>
  <NumericalData>
    <ResourceID>spase://ESA/NumericalData/Oersted/OESM/MAGF/PT1S</ResourceID>
    <ResourceHeader>
      <ResourceName>Oersted Mag-F: High Precision Magnetic Scalar Data</ResourceName>
      <ReleaseDate>2019-05-05T12:34:56Z</ReleaseDate>
      <Description>This dataset contains 1 second measurements of the scalar magnetic field from the Overhauser Effect Scalar Magnetometer on the Oersted spacecraft.</Description>
      <Acknowledgement>Dr. Jose J Achache; Dr. Ib Laursen; The European Space Agency; Danish Meteorological Institute (Denmark); Danish Ministry of Commerce (Denmark); Danish Ministry of Transportation (Denmark); Centre National d'Etudes Spatiales (France); National Aeronautics and Space Administration (United States); Danish Ministry of Science (Denmark); Danish Space Research Institute (Denmark)</Acknowledgement>
      <Contact>
        <PersonID>spase://SMWG/Person/Jose.J.Achache</PersonID>
        <Role>PrincipalInvestigator</Role>
</Contact>
      <Contact>
        <PersonID>spase://SMWG/Person/Ib.Laursen</PersonID>
        <Role>CoInvestigator</Role>
</Contact>
      <InformationURL>
        <Name>NSSDC's Master Catalog</Name>
        <URL>https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1999-008B-02</URL>
        <Description>Information about the Overhauser Effect Scalar Magnetometer.</Description>
        <Language>en</Language>
</InformationURL>
      <InformationURL>
        <Name>High Precision Magnetic Scalar Data format</Name>
        <URL>https://ftp.space.dtu.dk/data/magnetic-satellites/Oersted/mag-f/</URL>
        <Description>Information about the Overhauser Effect Scalar Magnetometer data format.</Description>
        <Language>en</Language>
</InformationURL>
      <PriorID>spase://VMO/NumericalData/Oersted/OESM/MAGF/PT1S</PriorID>
      <PriorID>spase://VSPO/NumericalData/Oersted/OESM/MAGF/PT1S</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/Oersted/mag-f/</URL>
        <Description>Overhauser Effect Scalar Magnetometer data</Description>
</AccessURL>
      <Format>Text</Format>
      <Acknowledgement>Dr. Jose J Achache; Dr. Ib Laursen</Acknowledgement>
</AccessInformation>
    <ProcessingLevel>Calibrated</ProcessingLevel>
    <ProviderResourceName>Overhauser Effect Scalar Magnetometer Data</ProviderResourceName>
    <ProviderProcessingLevel>Calibrated</ProviderProcessingLevel>
    <InstrumentID>spase://SMWG/Instrument/Oersted/OESM</InstrumentID>
    <MeasurementType>MagneticField</MeasurementType>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>1999-03-15T00:00:00Z</StartDate>
        <StopDate>2009-03-25T23:59:59Z</StopDate>
        <Note>It is not clear if this mission is still active.</Note>
</TimeSpan>
      <Cadence>PT1S</Cadence>
</TemporalDescription>
    <ObservedRegion>Earth.NearSurface</ObservedRegion>
    <ObservedRegion>Earth.NearSurface.AuroralRegion</ObservedRegion>
    <ObservedRegion>Earth.NearSurface.Ionosphere</ObservedRegion>
    <ObservedRegion>Earth.NearSurface.PolarCap</ObservedRegion>
    <Parameter>
      <Name>Universal Time</Name>
      <ParameterKey>Time</ParameterKey>
      <Description>Universal time columns from left to right are: year-month-day (yyyy-mm-dd) and seconds of the day.</Description>
      <Cadence>PT1S</Cadence>
      <Structure>
        <Size>2</Size>
        <Description>Universal Time expressed using a 6-column day, month, year, hour, minute, second representation</Description>
        <Element>
          <Name>Year-Month-Day</Name>
          <Index>1</Index>
          <ParameterKey>Column_1-Column_2-Column_3</ParameterKey>
</Element>
        <Element>
          <Name>Second</Name>
          <Index>2</Index>
          <ParameterKey>Second</ParameterKey>
</Element>
</Structure>
      <Support>
        <SupportQuantity>Temporal</SupportQuantity>
</Support>
</Parameter>
    <Parameter>
      <Name>Oersted Spacecraft Position Vector in ECEF polar coordinates</Name>
      <ParameterKey>Position Vectors</ParameterKey>
      <Description>Location of the spacecraft in Earth Centered, Earth Fixed polar coordinates in units of Re and degrees.</Description>
      <Cadence>PT1S</Cadence>
      <CoordinateSystem>
        <CoordinateRepresentation>Spherical</CoordinateRepresentation>
        <CoordinateSystemName>ECEF</CoordinateSystemName>
</CoordinateSystem>
      <Structure>
        <Size>3</Size>
        <Element>
          <Name>Radius</Name>
          <Qualifier>Component.I</Qualifier>
          <Index>1</Index>
          <ParameterKey>r</ParameterKey>
          <Units>km</Units>
</Element>
        <Element>
          <Name>Theta</Name>
          <Qualifier>Component.J</Qualifier>
          <Index>2</Index>
          <ParameterKey>theta</ParameterKey>
          <Units>degrees</Units>
</Element>
        <Element>
          <Name>Phi</Name>
          <Qualifier>Component.K</Qualifier>
          <Index>3</Index>
          <ParameterKey>Phi</ParameterKey>
          <Units>degrees</Units>
</Element>
</Structure>
      <Support>
        <SupportQuantity>Positional</SupportQuantity>
</Support>
</Parameter>
    <Parameter>
      <Name>Information and quality flag relating to position.</Name>
      <ParameterKey>Qpos</ParameterKey>
      <Description>The bits have the following interpretation (bit 1 is least significant bit - LSB): 0 = poor quality, 1 = Good quality (below 25 m spatial).</Description>
      <Cadence>PT1S</Cadence>
      <Units>unitless</Units>
      <Support>
        <SupportQuantity>Other</SupportQuantity>
</Support>
</Parameter>
    <Parameter>
      <Name>Magnetic Field Magnitude</Name>
      <ParameterKey>F</ParameterKey>
      <Description>Oersted Overhauser Effect Scalar Magnetometer Magnitude data.</Description>
      <Cadence>PT1S</Cadence>
      <Units>nT</Units>
      <Field>
        <Qualifier>Magnitude</Qualifier>
        <FieldQuantity>Magnetic</FieldQuantity>
</Field>
</Parameter>
    <Parameter>
      <Name>Information and quality flag relating to F (scalar magnetic measurement).</Name>
      <ParameterKey>Qf</ParameterKey>
      <Description>Information and quality flag relating to F (scalar magnetic measurement). The bits of this CDF_UINT2 has the following interpretation (bit 1 is least significant bit - LSB):

    1.  Frequency calibration: 0 = not applied (poor), 1 = applied (good).
    2.  Has occasional time shifts: 0 = yes (poor), 1 = no (good).
    3.  Spacecraft disturbance: 0 = ignored, 1 = compensated.
    4.  Scalar magnetometer temperature information: 0 = unavailable, 1 = available.
    5.  Not currently used = 0.
    6.  Not currently used = 0.
    7.  Not currently used = 0.
    8.  Scalar derived from: 0 = Scalar magnetometer, 1 = Vector magnetometer.
    9.  General vector data quality: 0 = poor, 1 = good.
    10. Vector magnetometer sample rate: 0 = 25 Hz, 1 = 100 Hz.
    11. Vector magnetometer temperature information: 0 = unavailable, 1 = available.
    12. Not currently used = 0.
    13. Torquer coils: 0 = on, 1 = off.
    14. Torquer coils disturbance: 0 gt.equal.to 1nT, 1 lt.equal.to 1nT.
    15. Scalar magnetometer power: 0 = on, 1 = off.
    16. Not currently used = 0.

If bit 8 is set to 0 (Scalar magnetometer), one can rely on the bits 1-7. If bit 8 is is set to 1 (Vector magnetometer), one can rely on bits 9-16. Further information may be included in this field.
Example: QF = 12928 = 011001010000000b: Scalar derived from Vector magnetometer, scalar magnetometer on, torquer coils off (=&gt;no disturbance), poor attitude, vector magnetometer temperature information unavailable, 100 Hz poor quality CSC data.
Example: To quickly identify Ovh samples (bit 8) do: if QF/28-1 is even then from Ovh.</Description>
      <Cadence>PT1S</Cadence>
      <Units>unitless</Units>
      <Support>
        <SupportQuantity>Other</SupportQuantity>
</Support>
</Parameter>
</NumericalData>
</Spase>
