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    • First Fermi-LAT Catalog of Sources above 10 GeV (1FHL)

    Metadata Updated: October 30, 2025

    This catalog of LAT sources above 10 GeV reports the locations, spectra, and variability properties of the 514 sources significantly detected in this range during the first three years of the Fermi mission. Many of these sources are already included in the 2FGL catalog, although in that catalog their characterization is dominated by the much larger numbers of gamma rays detected in the energy range 0.1 to 10 GeV.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date November 12, 2020
    Metadata Updated Date October 30, 2025
    Data Update Frequency irregular

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date October 30, 2025
    Publisher National Aeronautics and Space Administration
    Maintainer
    Identifier NASA-0000220__3
    Data First Published 2018-06-25
    Data Last Modified 2025-03-31
    Category Space Science
    Public Access Level public
    Data Update Frequency irregular
    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 105d44b6-c371-49cc-ad59-e6244d198829
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL http://fermi.gsfc.nasa.gov/ssc/data/access/lat/1FHL/
    Program Code 026:014
    Source Datajson Identifier True
    Source Hash 92445e8508d0a62e464c32809a024a4e2bdb47173811aa7b7c6457fc980351e8
    Source Schema Version 1.1

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