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    • IBEX High Energy Neutral Atom Imager (Hi) Data Release 02, not Compton-Getting corrected, not Survival Probability corrected, Omnidirectional, West Longitude Ecliptic Maps, Level H3 (H3), semiannually averaged Data

    Metadata Updated: March 13, 2026

    • 1: The Interstellar Boundary Explorer (IBEX) has operated in space since 2008 updating our knowledge of the outer heliosphere and its interaction with the local interstellar medium. Start-time: 2008-12-25. There are currently 17 releases of IBEX-HI and/or IBEX-LO data covering 2009-2020.\n 2: This data set is from the Release 2 (6 months-cadence) IBEX-Hi map data for the year 2009 in the form of omnidirectional ENA (hydrogen) fluxes with no Compton-Getting correction (nocg) of flux spectra for spacecraft motion and no correction for ENA survival probability (nosp) between 1 and 100 AU.\n 3. The data consist of all-sky maps in Solar Ecliptic Longitude (east and west) and Latitude angles for ENA (hydrogen) fluxes from IBEX-Hi energy bands 2-6 in numerical data form. Energy channels 2-6 have FWHM ranges of 0.52-0.95, 0.84-1.55, 1.36-2.50, 1.99-3.75, 3.13-6.00 keV, respectively. The corresponding center-point energies are 0.71, 1.11, 1.74, 2.73, and 4.29 keV. Details of the data and enabled science from Release 10 are given in the following journal publication:\n 4: McComas, D. J., et al. (2017), Seven Years of Imaging the Global Heliosphere with IBEX, Astrophys. J. Supp. Ser., 229(2), 41 (32 pp.),\n 5: http://doi.org/10.3847/1538-4365/aa66d8\n 6. The following codes are used to define dataset types:\n- cg = Compton-Getting corrections have been applied to the data to account for the speed of the spacecraft relative to the direction of arrival of the ENAs.\n- nocg = no Compton-Getting corrections\n- sp = survival probability corrections have been applied to the data to account for the loss of ENAs due to radiation pressure, photoionization and ionization via charge exchange with solar wind protons as they stream through the heliosphere. This correction scales the data out from IBEX at 1 AU to ~100 AU. In the original data this mode is denoted as Tabular.\n- noSP - no survival probability corrections have been applied to the data.\n- omni = data from all directions.\n- ram = data was collected when the spacecraft was ramming into the incoming ENAs.\n- antiram = data was collected when the spacecraft was moving away from the incoming ENAs.\n 7. The following list associates Release 2 map numbers (1-2) with mission year 1\n- Map 1: Map2009A, year 1, orbits 11-34, dates 12/25/2008-06/25/2009\n- Map 2: Map2009B, year 1, orbits 35-58, dates 06/25/2009-12/25/2009\n* 8: This particular data set, denoted in the original ascii files as mapN for N=1-2, which indicates a map number, includes pixel map data from all directions (omnidirectional), no CG, no SP, 6 month cadence.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

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    Dates

    Metadata Created Date April 9, 2025
    Metadata Updated Date March 13, 2026

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 9, 2025
    Metadata Updated Date March 13, 2026
    Publisher NASA Space Physics Data Facility (SPDF) Coordinated Data Analysis Web (CDAWeb) Data Services
    Maintainer
    Identifier https://doi.org/10.48322/0vjh-ph32
    Data Last Modified 2026-03-09
    Category Heliophysics
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 7c8749da-f1c9-4eb4-8b45-cc2e3f98e0b2
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.48322/0vjh-ph32
    License https://www.usa.gov/government-works
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash 49399fe85566904b7c7f9c6bfd7bdf7f65e85d78e616bfce5c798d8311ee5b5b
    Source Schema Version 1.1

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