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  <NumericalData>
    <ResourceID>spase://NASA/NumericalData/MMS/4/FIELDS/EDP/Survey/Level2/HighFrequencyElectricFieldSpectra/PT16S</ResourceID>
    <ResourceHeader>
      <ResourceName>MMS 4 Axial Double Probe, Spin Plane Double Probe (ADP-SDP) Electric Double Probe, High-Frequency Electric Field Spectra, Level 2, Survey</ResourceName>
      <AlternateName>MMS4_EDP_SRVY_L2_HFESP</AlternateName>
      <ReleaseDate>2021-04-27T15:38:11Z</ReleaseDate>
      <Description>Electric Double Probe, High-Frequency AC Electric Field Spectra, Level 2, Survey Data, Level 1B AC Electric Field Data</Description>
      <Acknowledgement>J. Burch, R. Ergun, P. Lindqvist</Acknowledgement>
      <Contact>
        <PersonID>spase://SMWG/Person/James.L.Burch</PersonID>
        <Role>PrincipalInvestigator</Role>
      </Contact>
      <Contact>
        <PersonID>spase://SMWG/Person/Robert.E.Ergun</PersonID>
        <Role>PrincipalInvestigator</Role>
      </Contact>
      <Contact>
        <PersonID>spase://SMWG/Person/Per-Arne.Lindqvist</PersonID>
        <Role>PrincipalInvestigator</Role>
      </Contact>
      <Contact>
        <PersonID>spase://SMWG/Person/Robert.E.McGuire</PersonID>
        <Role>MetadataContact</Role>
      </Contact>
      <Contact>
        <PersonID>spase://SMWG/Person/Lee.Frost.Bargatze</PersonID>
        <Role>MetadataContact</Role>
      </Contact>
      <InformationURL>
        <Name>The Magnetospheric Multiscale (MMS) Mission home page at Goddard Space Flight Center (GSFC)</Name>
        <URL>https://mms.gsfc.nasa.gov/</URL>
        <Description>The Magnetospheric Multiscale (MMS) Mission Home Page hosted by the Goddard Space Flight Center (GSFC).</Description>
      </InformationURL>
      <PriorID>spase://VSPO/NumericalData/MMS/4/FIELDS/EDP/Survey/Level2/HighFrequencyElectricFieldSpectra/PT16S</PriorID>
    </ResourceHeader>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <AccessURL>
        <Name>FTPS from SPDF (not with most browsers)</Name>
        <URL>ftps://spdf.gsfc.nasa.gov/pub/data/mms/mms4/edp/srvy/l2/hfesp/</URL>
        <Description>In CDF via ftp from SPDF.</Description>
      </AccessURL>
      <AccessURL>
        <Name>HTTPS from SPDF</Name>
        <URL>https://spdf.gsfc.nasa.gov/pub/data/mms/mms4/edp/srvy/l2/hfesp/</URL>
        <Description>In CDF via http from SPDF.</Description>
      </AccessURL>
      <AccessURL>
        <Name>CDAWeb</Name>
        <URL>https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=MMS4_EDP_SRVY_L2_HFESP&amp;index=sp_phys</URL>
        <ProductKey>MMS4_EDP_SRVY_L2_HFESP</ProductKey>
        <Description>Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb</Description>
      </AccessURL>
      <Format>CDF</Format>
      <Encoding>None</Encoding>
      <Acknowledgement>J. Burch, R. Ergun, P. Lindqvist. Please acknowledge the data providers and CDAWeb when using these data.</Acknowledgement>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <AccessURL>
        <Name>CDAWeb HAPI Server</Name>
        <URL>https://cdaweb.gsfc.nasa.gov/hapi</URL>
        <Style>HAPI</Style>
        <ProductKey>MMS4_EDP_SRVY_L2_HFESP</ProductKey>
        <Description>Web Service to this product using the HAPI interface.</Description>
      </AccessURL>
      <Format>CSV</Format>
      <Acknowledgement>J. Burch, R. Ergun, P. Lindqvist. Please acknowledge the data providers and CDAWeb when using these data.</Acknowledgement>
    </AccessInformation>
    <ProcessingLevel>Calibrated</ProcessingLevel>
    <InstrumentID>spase://SMWG/Instrument/MMS/4/FIELDS/ADP</InstrumentID>
    <InstrumentID>spase://SMWG/Instrument/MMS/4/FIELDS/SDP</InstrumentID>
    <MeasurementType>ElectricField</MeasurementType>
    <MeasurementType>Waves.Passive</MeasurementType>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>2015-09-01T00:00:00.000</StartDate>
        <RelativeStopDate>-P2M</RelativeStopDate>
      </TimeSpan>
      <Cadence>PT16S</Cadence>
    </TemporalDescription>
    <ObservedRegion>Earth.Magnetosheath</ObservedRegion>
    <ObservedRegion>Earth.Magnetosphere</ObservedRegion>
    <ObservedRegion>Earth.Magnetosphere.Magnetotail</ObservedRegion>
    <ObservedRegion>Earth.Magnetosphere.Main</ObservedRegion>
    <ObservedRegion>Earth.Magnetosphere.RadiationBelt</ObservedRegion>
    <ObservedRegion>Earth.NearSurface.EquatorialRegion</ObservedRegion>
    <ObservedRegion>Earth.NearSurface.Plasmasphere</ObservedRegion>
    <ObservedRegion>Heliosphere.NearEarth</ObservedRegion>
    <Parameter>
      <Name>Epoch Time</Name>
      <ParameterKey>Epoch</ParameterKey>
      <Description>Epoch Time Tags, Interval Centered, in Terrestrial Time 2000 (TT2000)</Description>
      <Cadence>PT16S</Cadence>
      <Units>ns</Units>
      <UnitsConversion>1.0e-9&gt;s</UnitsConversion>
      <Support>
        <SupportQuantity>Temporal</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>HF ACE Spectral Frecuency</Name>
      <ParameterKey>mms4_edp_hfesp_freq_srvy_l2</ParameterKey>
      <Description>High Frequency AC Electric Field Spectral Frequency, Level 2</Description>
      <Cadence>PT16S</Cadence>
      <Units>Hz</Units>
      <RenderingHints>
        <AxisLabel>Freq</AxisLabel>
      </RenderingHints>
      <Support>
        <SupportQuantity>Other</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>HF ACE Electric Field Spectral Density</Name>
      <Set>Time series defined by using: EPOCH</Set>
      <ParameterKey>mms4_edp_hfesp_srvy_l2</ParameterKey>
      <Description>High Frequency AC Electric Field Spectral Density, Level 2</Description>
      <Cadence>PT16S</Cadence>
      <Units>(V/m)^2/Hz</Units>
      <RenderingHints>
        <DisplayType>Spectrogram</DisplayType>
      </RenderingHints>
      <Structure>
        <Size>322</Size>
      </Structure>
      <Wave>
        <WaveType>Electrostatic</WaveType>
        <WaveQuantity>ACElectricField</WaveQuantity>
      </Wave>
    </Parameter>
  </NumericalData>
</Spase>
