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    • UARS PEM Level 2 AXIS 2 V001 (UARPE2AXIS2) at GES DISC

    Metadata Updated: December 6, 2023

    The UARS Particle Environment Monitor (PEM) level 2 Atmosphere X-Ray Imaging Spectrometer (AXIS) unit 2 daily product contains the X-ray high-resolution spectral data converted to number intensity units from the AXIS2 pixels mounted on the UARS body. PEM was flown on the UARS spacecraft to measure the type, amount, energy, and distribution of charged particles injected into the Earth's thermosphere, mesosphere, and stratosphere.

    The PEM AXIS2 X-ray data cover roughly the energy range from 2 keV to 300 keV. There are eight AXIS2 pixels mounted in the AXIS2 housing, each viewing different directions. The AXIS2 pixels are aligned on the spacecraft to project about 45 degrees toward the +x axis direction from the Earthward pointing direction (+z axis). Each pixel of AXIS2 is staggered about the 45 degree direction in an every-other fashion. Pixel 1 is closest to the center line of the spacecraft and Pixel 8 is furtherest away; however, their ground projection is dependent on the spacecraft orientation.

    There is one data file per day for the PEM AXIS2 product, and the temporal coverage is from Oct. 1, 1991 to Aug. 23, 2005. Spatial coverage for the AXIS2 product ranges between -80 and +80 degrees latitude. The AXIS2 data files are written in network binary format. For more information please review the PEM AXIS2 data format guide.

    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 December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Graphic Preview

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date December 6, 2023
    Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
    Maintainer
    Identifier C1273348499-GES_DISC
    Data First Published 2006-04-30
    Language en-US
    Data Last Modified 2006-04-30
    Category UARS, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.nasa.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Citation Winningham, David J., et al.. 2006-06-14. UARPE2AXIS2. Version 001. UARS PEM Level 2 AXIS 2 V001. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://disc.gsfc.nasa.gov/datacollection/UARPE2AXIS2_001.html. Digital Science Data.
    Creator Winningham, David J., et al.
    Data Presentation Form Digital Science Data
    Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/UARPE2AXIS2_001.png
    Harvest Object Id 18927229-73de-4b6e-a302-d5c7dc59d53e
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://cmr.earthdata.nasa.gov:443/search/concepts/C1273348499-GES_DISC.html
    Metadata Type geospatial
    Old Spatial -180.0 -80.0 180.0 80.0
    Program Code 026:001
    Release Place Greenbelt, MD, USA
    Series Name UARPE2AXIS2
    Source Datajson Identifier True
    Source Hash fb989730fba04302314fb8af70a8054668e6826669021b0d76e50df77f6ba988
    Source Schema Version 1.1
    Spatial
    Temporal 1991-09-30T00:00:00Z/2005-03-08T23:59:59.999Z

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