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  <NumericalData>
    <ResourceID>spase://NASA/NumericalData/Helios2/E6/ParticleFlux/Kunow/ASCII/PT1H</ResourceID>
    <NamingAuthority>NASA</NamingAuthority>
    <ResourceType>NumericalData</ResourceType>
    <ResourceHeader>
      <ResourceName>Helios 2 E6 (Kunow) Hourly Particle Fluxes in ASCII Format</ResourceName>
      <DOI>https://doi.org/10.48322/gb3b-6904</DOI>
      <ReleaseDate>2025-12-04T13:29:21Z</ReleaseDate>
      <RevisionHistory>
        <RevisionEvent>
          <ReleaseDate>2021-03-11T18:39:11Z</ReleaseDate>
          <Note>Only known prior ReleaseDate of the metadata</Note>
        </RevisionEvent>
        <RevisionEvent>
          <ReleaseDate>2025-11-14T16:02:22Z</ReleaseDate>
          <Note>Added PublicationInfo. Added ResourceType and NamingAuthority. ZCB</Note>
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        <RevisionEvent>
          <ReleaseDate>2025-12-04T13:29:21Z</ReleaseDate>
          <Note>Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB</Note>
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      <Description>Data set records contain fluxes of protons in 5 energy
ranges (4-13, 13-27, 27-37, 37-51, &gt;51 MeV), alpha particles in 6 energy ranges
(2-4, 4-13, 13-27, 27-37, 37-48, &gt;48 MeV/n), and electrons in 2 ranges (0.3-0.8,
0.8-2.0 MeV).  The fluxes are averaged over intervals of approximately one hour. 
Each "data record" (having ending CR and/or LF) spans 4-5 hours and has 10 
time-overlapping segments.  Each segment has averaging start and stop times plus 
words for 13 fluxes and words for the statistical uncertainties in the 13 fluxes.  
However, most words in a given segment have fill values, such that good values 
for a given flux (species and energy range) and its uncertainty appear only in 
a minority of the segments.  No spacecraft position information is included.  
Data are from the E6 experiment on Helios 2.</Description>
      <Acknowledgement>Please acknowledge the P.I., Horst Kunow at Universitat 
Kiel</Acknowledgement>
      <PublicationInfo>
        <Authors>Kunow, Horst W.</Authors>
        <PublicationDate>2025-11-14T16:02:22Z</PublicationDate>
        <PublishedBy>Space Physics Data Facility</PublishedBy>
      </PublicationInfo>
      <Contact>
        <PersonID>spase://SMWG/Person/Horst.W.Kunow</PersonID>
        <Role>PrincipalInvestigator</Role>
      </Contact>
      <InformationURL>
        <Name>Readme file at SPDF</Name>
        <URL>https://spdf.gsfc.nasa.gov/pub/data/helios/helios2/particle/e6_kunow/h-cr.txt</URL>
      </InformationURL>
      <PriorID>spase://VEPO/NumericalData/Helios2/E6/PT1H</PriorID>
      <PriorID>spase://VEPO/NumericalData/Helios2/E6/ParticleFlux/Kunow/ASCII/PT1H</PriorID>
      <PriorID>spase://VSPO/NumericalData/Helios2/E6/ParticleFlux/Kunow/ASCII/PT1H</PriorID>
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    <AccessInformation>
      <RepositoryID>spase://SMWG/Repository/NASA/GSFC/SPDF</RepositoryID>
      <Availability>Online</Availability>
      <AccessRights>Open</AccessRights>
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          <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/helios/helios2/particle/e6_kunow/</URL>
        <Description>In ASCII via FTP from SPDF</Description>
      </AccessURL>
      <AccessURL>
        <Name>HTTPS from SPDF</Name>
        <URL>https://spdf.gsfc.nasa.gov/pub/data/helios/helios2/particle/e6_kunow/</URL>
        <Description>In ASCII via HTTP from SPDF</Description>
      </AccessURL>
      <AccessURL>
        <Name>FTPBrowser</Name>
        <URL>https://omniweb.gsfc.nasa.gov/ftpbrowser/helios2_e6_1hr.html</URL>
        <Description>Subset, plot, and/or list fluxes</Description>
      </AccessURL>
      <AccessURL>
        <Name>Multi-Source Spectral Plot</Name>
        <URL>https://omniweb.gsfc.nasa.gov/ftpbrowser/flux_spectr_m.html</URL>
        <Description>Spectral plots and power law fits for arbitrary durations.</Description>
      </AccessURL>
      <Format>Text</Format>
      <DataExtent>
        <Quantity>14</Quantity>
        <Units>MB</Units>
      </DataExtent>
      <Acknowledgement>Please acknowledge the P.I., Horst Kunow at Universitat 
Kiel and the Space Physics Data Facility at NASA/GSFC</Acknowledgement>
    </AccessInformation>
    <InstrumentID>spase://SMWG/Instrument/Helios2/E6</InstrumentID>
    <MeasurementType>EnergeticParticles</MeasurementType>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>1976-01-16T00:00:00</StartDate>
        <StopDate>1980-03-08T00:00:00</StopDate>
      </TimeSpan>
      <Cadence>PT1H</Cadence>
    </TemporalDescription>
    <ObservedRegion>Heliosphere.Inner</ObservedRegion>
    <Parameter>
      <Name>Start and stop times</Name>
      <Description>The start and stop times of the flux averages, each given
as four words: year, day of year, hour, minute</Description>
      <Cadence>PT1H</Cadence>
      <Structure>
        <Size>4 2</Size>
        <Description>The start and stop times of the flux averages, each given
as four words: year, day of year, hour, minute.  These are given in each of the 
10 time segments for each data record</Description>
      </Structure>
      <Support>
        <SupportQuantity>Temporal</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>Proton fluxes and uncertainties</Name>
      <Description>Fluxes of protons in 5 energy ranges (4-13, 13-27, 27-37, 
37-51, &gt;51 MeV) and associated statistical uncertainties for each flux.</Description>
      <Cadence>PT1H</Cadence>
      <Units>Particles/m**2_sec_sr_MeV</Units>
      <Structure>
        <Size>5 2</Size>
        <Description>Fluxes of protons in 5 energy ranges (4-13, 13-27, 27-37, 
37-51, &gt;51 MeV) and associated statistical uncertainties for each flux.  These are 
given in each of the 10 time segments for each data record.  (See general description
above.)</Description>
      </Structure>
      <FillValue>-0.99999E+04</FillValue>
      <Particle>
        <ParticleType>Proton</ParticleType>
        <Qualifier>Average</Qualifier>
        <ParticleQuantity>NumberFlux</ParticleQuantity>
        <EnergyRange>
          <Low>4</Low>
          <High>51</High>
          <Units>MeV</Units>
        </EnergyRange>
      </Particle>
    </Parameter>
    <Parameter>
      <Name>Alpha particle fluxes and uncertainties</Name>
      <Description>Fluxes of alpha particles in 6 energy ranges (2-4, 4-13, 13-27, 
27-37, 37-48, &gt;48 MeV/n) and associated statistical uncertainties for each flux.</Description>
      <Cadence>PT1H</Cadence>
      <Units>Particles/m**2_sec_sr_MeV/n</Units>
      <Structure>
        <Size>6 2</Size>
        <Description>Fluxes of alpha particles in 6 energy ranges (2-4, 4-13, 13-27, 
27-37, 37-48, &gt;48 MeV/n) and associated statistical uncertainties for each flux.  
These are given in each of the 10 time segments for each data record.  (See general 
description above.)</Description>
      </Structure>
      <FillValue>-0.99999E+04</FillValue>
      <Particle>
        <ParticleType>AlphaParticle</ParticleType>
        <Qualifier>Average</Qualifier>
        <ParticleQuantity>NumberFlux</ParticleQuantity>
        <EnergyRange>
          <Low>2</Low>
          <High>48</High>
          <Units>MeV/n</Units>
        </EnergyRange>
      </Particle>
    </Parameter>
    <Parameter>
      <Name>Electron fluxes and uncertainties</Name>
      <Description>Fluxes of electrons in 2 energy ranges (0.3-0.8, 0.8-2.0 MeV) 
and associated statistical uncertainties for each flux.</Description>
      <Cadence>PT1H</Cadence>
      <Units>Particles/m**2_sec_sr_MeV</Units>
      <Structure>
        <Size>2 2</Size>
        <Description>Fluxes of electrons in 2 energy ranges (0.3-0.8, 0.8-2.0 MeV) 
and associated statistical uncertainties for each flux.  These are given in each 
of the 10 time segments for each data record.  (See general description above.)</Description>
      </Structure>
      <FillValue>-0.99999E+04</FillValue>
      <Particle>
        <ParticleType>Electron</ParticleType>
        <Qualifier>Average</Qualifier>
        <ParticleQuantity>NumberFlux</ParticleQuantity>
        <EnergyRange>
          <Low>0.3</Low>
          <High>2.0</High>
          <Units>MeV</Units>
        </EnergyRange>
      </Particle>
    </Parameter>
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