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    • SORCE XPS Level 3 Solar Spectral Irradiance Daily Means V012 (SOR3XPSD) at GES DISC

    Metadata Updated: September 18, 2025

    The SORCE XUV Photometer System (XPS) Solar Spectral Irradiance (SSI) Daily Data Product SOR3XPSD contains solar extreme ultraviolet irradiances in the 0.1 to 27 nm range, as well as Lyman-alpha, in broad bands (7-10 nm resolution) as listed below: Diode 1: 0.1 - 7.0 nm Diode 2: 0.1 - 7.0 nm Diode 3: 17.0 - 23.0 nm Diode 6: 0.1 - 11.0 nm Diode 7: 0.1 - 7.0 nm Diode 9: 0.1 - 7.0 nm* Diode 11: 121.0 - 122.0 nmThe data are reported at a mean solar distance of 1 AU and zero relative line-of-sight velocity with respect to the Sun. The accuracy for the XPS Level 3 irradiance is 12-30%, photometer dependent, and the long-term repeatability is 1% per year. The SOR3XPSD data are arranged in a single tabular ASCII text file which can be easily read into a spreadsheet application. The columns contain the date, Julian day, average measurement date, standard deviation of measurement date, diode number, minimum wavelength, maximum wavelength, instrument mode, data version number, median irradiance, mean irradiance, absolute uncertainty, measurement precision, calculation precision, degradation model, degradation version, and number of data points. The rows are arranged with data for each day, repeating for each diode wavelength.

    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 April 11, 2025
    Metadata Updated Date September 18, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 11, 2025
    Metadata Updated Date September 18, 2025
    Publisher NASA/GSFC/SED/ESD/TISL/GESDISC;UCO/LASP/SORCE
    Maintainer
    Identifier 10.5067/ZBKF34FGDCLT
    Data Last Modified 2025-09-11
    Category Earth Science
    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 d141c33f-b8a6-4e7d-a2a9-942d7b7e23ab
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/SOR3XPSD_012.png
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash aedc3e417b675e1761d9a4e278308feb2fee6fc3fa5ee9dc4de468ba48538d5b
    Source Schema Version 1.1
    Temporal 2003-02-10/2003-02-10

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