Fundamental Technologies, LLC, is committed to the success of the Virtual Heliospheric Observatory (VHO) and its subset the Virtual Energetic Particles Observatory (VEPO). The data products in our archive are being reorganized into a more logical structure, and the products are described using the Space Physics Archive, Search, and Extract (SPASE) XML metadata language. These data are accessible from either the VHO or VEPO websites, or through the links provided below.

Data Product Archives

  • Ulysses HISCALE Investigation (NASA/JHUAPL)
    • Metadata and documentation; HISCALE Data Analysis Handbook
    • Data
      • Rates [XML]
        • 12-sec ion and electron count rates [Data] [XML]
        • 5-min ion and electron count rates [Data] [XML]
        • Hourly ion and electron count rates [Data] [XML]
        • Daily ion and electron count rates [Data] [XML]
        • UDS [Data] [XML]
      • MFSA Fluxes [XML]
        • 17-min ion and electron high-resolution fluxes [Data] [XML]
        • Hourly ion and electron high-resolution fluxes [Data] [XML]
        • Daily ion and electron high-resolution fluxes [Data] [XML]
      • PHA [XML]
        • Events [Data] [XML]
        • Rates [Data] [XML]
        • Spectra [Data] [XML]
      • Background [XML]
        • Daily [Data] [XML]
        • Hourly [Data] [XML]
  • Advanced Composition Explorer EPAM Investigation (NASA/JHUAPL)
    • Metadata and Documentation
    • Data
      • Rates [XML]
        • 12-sec ion and electron count rates [Data] [XML]
        • 5-min ion and electron count rates [Data] [XML]
        • Hourly ion and electron count rates [Data] [XML]
        • Daily ion and electron count rates [Data] [XML]
      • MFSA Fluxes
        • [XML]
        • 17-min ion and electron high-resolution fluxes [Data] [XML]
        • Hourly ion and electron high-resolution fluxes [Data] [XML]
        • Daily ion and electron high-resolution fluxes [Data] [XML]
      • PHA [XML]
        • Events [Data] [XML]
        • Rates [Data] [XML]
  • Voyager LECP Investigation (NASA/JHUAPL)
    • Metadata and documentation; Voyager LECP Data Analysis Handbook
    • Data
      • Cruise 5A Rates
        • V1
          • Filtered [Data] [XML]
          • Unfiltered [Data] [XML]
        • V2
          • Filtered [Data] [XML]
          • Unfiltered [Data] [XML]
      • Cruise Rates (coming soon)
  • Interplanetary Monitoring Platform CPME Investigation (NASA/JHUAPL)
    • Metadata and Documentation
    • Data
      • Rates
        • Integral fluxes [Data]
        • 5-min ion and electron count rates [Data]
        • Hourly ion and electron count rates [Data]
        • Daily ion and electron count rates [Data]

Partners:

spacer The Virtual Heliospheric Observatory

The primary purpose of the VHO data environment is to allow users to search and retrieve heliospheric data using a common interface. Users will interact with the VHO using either their web browsers or an application programming interface (API) where they compose their query. The user query is then submitted to the Query Construction Engine that, relying on the content of the VHO Registry, determines which particular data services are relevant for the current search and converts the user query into a format that is understood by the particular data services to be contacted. The contacted data services will search their holdings and return query results to the VHO middleware where the Query Result Engine combines and reformats the individual results to provide a uniform reporting mechanism for the user. At this point, the user has the option to further refine the query based on the results returned or request the identified data files directly from the data providers bypassing the VHO middleware. [Szabo, 2003]


spacer The Virtual Energetic Particles Observatory

The heliosphere is pervaded by interplanetary energetic particles, traditionally also called cosmic rays, from solar, internal heliospheric, and galactic sources. The particle species of interest to heliophysics extend from plasma energies to the GeV energies of galactic cosmic rays still measurably affected by heliospheric modulation and the still higher energies contributing to atmospheric ionization. The NASA and international Heliospheric Network of operational and legacy spacecraft measures interplanetary fluxes of these particles. Spatial coverage extends from the inner heliosphere and geospace to the heliosheath boundary region now being traversed by Voyager 1 and soon by Voyager 2. Science objectives include investigation of solar flare and coronal mass ejection events, acceleration and transport of interplanetary particles within the inner heliosphere, cosmic ray interactions with planetary surfaces and atmospheres, sources of suprathermal and anomalous cosmic ray ions in the outer heliosphere, and solar cycle modulation of galactic cosmic rays. The Virtual Energetic Particle Observatory (VEPO) will improve access and usability of selected spacecraft and sub-orbital NASA heliospheric energetic particle data sets as a newly approved effort within the evolving heliophysics virtual observatory environment. VEPO will also leverage existing data services of NASA's Space Physics Data Facility and other existing capabilities of the U.S. and international heliospheric research communities. [Cooper, 2007]

 

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Updated 8/2/2011, T. Hunt-Ward and J. D. Patterson

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