<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<Spase xmlns="http://www.spase-group.org/data/schema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.spase-group.org/data/schema http://www.spase-group.org/data/schema/spase-2_6_1.xsd">
  <_Note>Nodes prefixed with a _ are not valid SPASE, but are included for debugging. Values prefixed with a x_ are not valid SPASE but may considered for addition for completeness.</_Note>
  <Version>2.6.1</Version>
  <_MasterURL>https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0JSONS/ts2_l2_efi_ehf_00000000_v01.json (from all.xml)</_MasterURL>
  <NumericalData>
    <ResourceID/>
    <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json</_ResourceID>
    <ResourceHeader>
      <ResourceName>TRACERS Satellite 2 Level 2 Electric Fields Instrument (EFI) HF Electric Field</ResourceName>
      <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description</_ResourceName>
      <AlternateName>ts2_l2_ehf</AlternateName>
      <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source</_AlternateName>
      <Description>https://link-springer-com.libproxy.berkeley.edu/article/10.1007/s11214-025-01202-5','High frequency electric field measurements for SV2.'] </Description>
      <_Description>Source: Master/CDFglobalAttributes/TEXT</_Description>
      <_Rights>
        <Name>SPDX</Name>
        <Description>Creative Commons Zero v1.0 Universal</Description>
        <URL>https://spdx.org/licenses/CC0-1.0.html</URL>
        <SchemeURI>https://spdx.org/licenses/</SchemeURI>
      </_Rights>
      <InformationURL>
        <URL>https://tracers.physics.uiowa.edu/</URL>
        <Name>UIowa</Name>
        <Description>Portal at</Description>
        <_Note>URL also in all.xml. Using master.</_Note>
      </InformationURL>
    </ResourceHeader>
    <Caveats>https://tracers.physics.uiowa.edu/rules-use</Caveats>
    <_Caveats>Source: Master/CDFglobalAttributes/Rules_of_use</_Caveats>
    <DOI/>
    <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json</_DOI>
    <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json</_AccessInformation>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>2025-08-04T23:51:11Z</StartDate>
        <StopDate>2026-04-30T23:39:21Z</StopDate>
      </TimeSpan>
      <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop</_TemporalDescription>
    </TemporalDescription>
    <ObservedRegion/>
    <_ObservedRegion>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ObservedRegion.json</_ObservedRegion>
    <ProcessingLevel/>
    <_ProcessingLevel>Processing level is not available in the master file; it should be there instead of, say, https://github.com/rweigel/cdawmeta-spase/blob/main/ProcessingLevel.json</_ProcessingLevel>
    <InstrumentID/>
    <MeasurementType/>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <Acknowledgement>SPDF/CDAWeb. Please also acknowledge the data producer: J. W. Bonnell at Space Sciences Laboratory</Acknowledgement>
      <Style>Listing</Style>
      <AccessURL>
        <Name>HTTPS from SPDF</Name>
        <URL>https://cdaweb.gsfc.nasa.gov/pub/data/tracers/tracers2/efi/l2/highfrequency</URL>
        <Description>In CDF via HTTP from CDAWeb</Description>
        <AccessFilenameTemplate>ts2_l2_efi_ehf_%Y%m%d_%Q.cdf</AccessFilenameTemplate>
        <AccessDirectoryTemplate>%Y</AccessDirectoryTemplate>
        <ProductKey>TS2_L2_EFI_EHF</ProductKey>
      </AccessURL>
      <Format>CDF</Format>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <Acknowledgement>SPDF/CDAWeb. Please also acknowledge the data producer: J. W. Bonnell at Space Sciences Laboratory</Acknowledgement>
      <Style>Listing</Style>
      <AccessURL>
        <Name>FTPS from SPDF</Name>
        <URL>ftps://cdaweb.gsfc.nasa.gov/pub/data/tracers/tracers2/efi/l2/highfrequency</URL>
        <Description>In CDF via HTTP from CDAWeb</Description>
        <AccessFilenameTemplate>ts2_l2_efi_ehf_%Y%m%d_%Q.cdf</AccessFilenameTemplate>
        <AccessDirectoryTemplate>%Y</AccessDirectoryTemplate>
        <ProductKey>TS2_L2_EFI_EHF</ProductKey>
      </AccessURL>
      <Format>CDF</Format>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <Acknowledgement>SPDF/CDAWeb. Please also acknowledge the data producer: J. W. Bonnell at Space Sciences Laboratory</Acknowledgement>
      <AccessURL>
        <Name>CDAWeb Web Service</Name>
        <URL>https://cdaweb.gsfc.nasa.gov/WebServices/</URL>
        <Style>WebService</Style>
        <Description>Instructions for using web services to access this dataset an other other metadata and options for CDAWeb datasets. The ProductKey here corresponds to the query parameter 'dataset' in the tables at the AccessURL in a dataset-related request can be made.</Description>
        <ProductKey>TS2_L2_EFI_EHF</ProductKey>
      </AccessURL>
      <Format>CDF</Format>
      <Format>CSV</Format>
      <Format>GIF</Format>
      <Format>NetCDF</Format>
      <Format>PNG</Format>
      <Format>PS</Format>
      <Format>PDF</Format>
      <Format>XML</Format>
      <Format>x_Script.IDL</Format>
      <Format>x_Script.Python</Format>
      <Format>Text.ASCII</Format>
      <Format>x_WAV</Format>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <Acknowledgement>SPDF/CDAWeb. Please also acknowledge the data producer: J. W. Bonnell at Space Sciences Laboratory</Acknowledgement>
      <AccessURL>
        <Name>CDAWeb Web Service user interface</Name>
        <URL>https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&amp;dataset=TS2_L2_EFI_EHF</URL>
        <Style>WebService</Style>
        <ProductKey>TS2_L2_EFI_EHF</ProductKey>
        <Description>Web service user interface for this product.</Description>
      </AccessURL>
      <Format>CDF</Format>
      <Format>GIF</Format>
      <Format>PDF</Format>
      <Format>Text.ASCII</Format>
      <Format>x_WAV</Format>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <Acknowledgement>SPDF/CDAWeb. Please also acknowledge the data producer: J. W. Bonnell at Space Sciences Laboratory</Acknowledgement>
      <AccessURL>
        <Name>CDAWeb Python Script</Name>
        <URL>https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/TS2_L2_EFI_EHF/clientLibraryExample/</URL>
        <ProductKey>TS2_L2_EFI_EHF</ProductKey>
        <Style>WebService</Style>
        <Description>Web service that generates a Python script to access this product.</Description>
      </AccessURL>
      <Format>x_Script.IDL</Format>
      <Format>x_Script.Python</Format>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <Acknowledgement>SPDF/SSCWeb. Please also acknowledge the data producer: J. W. Bonnell at Space Sciences Laboratory</Acknowledgement>
      <AccessURL>
        <Name>4D Orbit Viewer</Name>
        <URL>https://sscweb.gsfc.nasa.gov/4dorbit/?sc=TS2_L2_EFI_EHF</URL>
        <ProductKey>TS2_L2_EFI_EHF</ProductKey>
        <Style>x_Visualization</Style>
        <Description>Web Service to this product.</Description>
      </AccessURL>
      <Format>HTML</Format>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <Acknowledgement>SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: J. W. Bonnell at Space Sciences Laboratory</Acknowledgement>
      <AccessURL>
        <Name>CDAWeb HAPI Server</Name>
        <URL>https://hapi-server.org/servers/#server=CDAWeb&amp;dataset=TS2_L2_EFI_EHF@0</URL>
        <Style>HAPI</Style>
        <Description>Web Service to this product using the HAPI interface. Note that HAPI dataset has a collection of parameters, each having the same time stamps. This CDAWeb dataset contains 2 HAPI-type datasets. The @0, @1, ... at the end of the ParameterKeys indicates the index of the CDAWeb dataset. (The dataset index &lt;=&gt; CDF file time variable pairs are @0 =&gt; Epoch, @1 =&gt; ts2_l2_ehf_snapshot_start.)</Description>
        <ProductKey>TS2_L2_EFI_EHF@0</ProductKey>
        <ProductKey>TS2_L2_EFI_EHF@1</ProductKey>
      </AccessURL>
      <Format>CSV</Format>
      <Format>JSON</Format>
      <Format>Binary</Format>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <Acknowledgement>SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: J. W. Bonnell at Space Sciences Laboratory</Acknowledgement>
      <AccessURL>
        <Name>CDAWeb HAPI Script in Multiple Languages</Name>
        <URL>https://hapi-server.org/servers/#server=CDAWeb&amp;dataset=TS2_L2_EFI_EHF@0&amp;return=script</URL>
        <Style>HAPI</Style>
        <Description>Web Service user interface that generates scripts in IDL, Javascript, MATLAB, Python, Autoplot, curl, wget to access this product. See https://hapi-server.org/servers/api for the API. Note that HAPI dataset has a collection of parameters, each having the same time stamps. This CDAWeb dataset contains 2 HAPI-type datasets. The @0, @1, ... at the end of the ParameterKeys indicates the index of the CDAWeb dataset. (The dataset index &lt;=&gt; CDF file time variable pairs are @0 =&gt; Epoch, @1 =&gt; ts2_l2_ehf_snapshot_start.)</Description>
        <ProductKey>TS2_L2_EFI_EHF@0</ProductKey>
        <ProductKey>TS2_L2_EFI_EHF@1</ProductKey>
      </AccessURL>
      <Format>x_Script.IDL</Format>
      <Format>x_Script.Javascript</Format>
      <Format>x_Script.MATLAB</Format>
      <Format>x_Script.Python</Format>
      <Format>x_Script.Autoplot</Format>
      <Format>x_Script.curl</Format>
      <Format>x_Script.wget</Format>
    </AccessInformation>
    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
      <Acknowledgement>SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: J. W. Bonnell at Space Sciences Laboratory</Acknowledgement>
      <AccessURL>
        <Name>HAPI visualizations</Name>
        <URL>https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&amp;dataset=TS2_L2_EFI_EHF@0&amp;format=gallery</URL>
        <Style>x_Visualization</Style>
        <Description>Web Service that generates plots. See https://hapi-server.org/plot/ for the API.</Description>
        <ProductKey>TS2_L2_EFI_EHF@0</ProductKey>
        <ProductKey>TS2_L2_EFI_EHF@1</ProductKey>
      </AccessURL>
      <Format>PNG</Format>
      <Format>PDF</Format>
      <Format>SVG</Format>
    </AccessInformation>
    <Keyword>Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellite 2 (from all.xml/observatory/description/@short)</Keyword>
    <Keyword>Electric Fields Instrument (from all.xml/instrument/description/@short)</Keyword>
    <Keyword>Space Physics (from Master/CDFglobalAttributes/Discipline)</Keyword>
    <Keyword>Magnetospheric Science (from Master/CDFglobalAttributes/Discipline)</Keyword>
    <Keyword>Ionospheric Science (from Master/CDFglobalAttributes/Discipline)</Keyword>
    <Keyword>TRACERS2 (from Master/CDFglobalAttributes/Source_name)</Keyword>
    <Keyword>Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellite 2 (from Master/CDFglobalAttributes/Source_name)</Keyword>
    <Keyword>L2 (from Master/CDFglobalAttributes/Data_type)</Keyword>
    <Keyword>Level 2 (from Master/CDFglobalAttributes/Data_type)</Keyword>
    <Keyword>EFI (from all.xml/instrument/@ID)</Keyword>
    <Parameter2>
      <Name>Sample timestamp in UTC</Name>
      <ParameterKey>Epoch</ParameterKey>
      <Description>CATDESC: 'Sample timestamp in UTC'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.'</Description>
      <Units>ns</Units>
      <Support>
        <Qualifier>Scalar</Qualifier>
        <SupportQuantity>Temporal</SupportQuantity>
      </Support>
    </Parameter2>
    <Parameter2>
      <Name>HF timeseries</Name>
      <ParameterKey>ts2_l2_hf</ParameterKey>
      <Description>Master CDF CATDESC: 'Timeseries of the single axis HF waveform'. Master CDF VAR_NOTES: 'Single axis, high frequency electric field timeseries data along the TSCS X axis. The data is taken in snapshots and consists of 16384 samples taken over ~0.8192 ms at a 20 MHz cadence. In ROI mode, this snapshot is taken every 16 seconds, while in backorbit mode, the snapshot is every ~34 minutes. The filter characteristics are given in the included transfer function variable.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'</Description>
      <Units>V/m</Units>
      <FillValue>-1e+31</FillValue>
    </Parameter2>
    <Parameter2>
      <Name>Sample timestamp in UTC</Name>
      <ParameterKey>ts2_l2_ehf_snapshot_start</ParameterKey>
      <Description>CATDESC: 'Sample timestamp in UTC'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.'</Description>
      <Units>ns</Units>
      <Support>
        <Qualifier>Scalar</Qualifier>
        <SupportQuantity>Temporal</SupportQuantity>
      </Support>
    </Parameter2>
    <Parameter2>
      <Name>HF spectra</Name>
      <ParameterKey>ts2_l2_hf_spec</ParameterKey>
      <Description>Master CDF CATDESC: 'Spectra of the single axis HF snapshot'. Master CDF VAR_NOTES: 'Spectrum of the high frequency electric field timeseries data along the TSCS X axis. The data is taken in snapshots and consists of 16384 samples taken over ~0.8192 ms at a 20 MHz cadence. In ROI mode, this snapshot is taken every 16 seconds, while in backorbit mode, the snapshot is every ~34 minutes. For each snapshot, a spectrum is generated with a 8192 sample window with a 7/8 fractional overlap. The filter characteristics are given in the included transfer function variable and have not been accounted for in the spectra.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is ts2_l2_ehf_snapshot_start.'</Description>
      <Units>(V/m)^2/Hz</Units>
      <FillValue>-1e+31</FillValue>
      <Structure>
        <Size>4097</Size>
      </Structure>
    </Parameter2>
  </NumericalData>
</Spase>
