Skip to main content
U.S. flag

An official website of the United States government

This site is currently in beta, and your feedback is helping shape its ongoing development.

Return to search results

GOES-R Series Level 1b EXIS X-Ray Sensor (XRS) Product in Daily Aggregations

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 19, 2025 | Last Modified: 2018-07-18T00:00:00.000+00:00
The EUV and X-Ray Irradiance Sensors (EXIS) measures solar irradiance at the very short wavelengths where the Sun's output varies the most. The GOES-R Extreme Ultraviolet and X-Ray Irradiance Sensors (EXIS) X-Ray Sensor (XRS) Level 1b (L1b) Science-Quality data contains 1-second cadence soft X-Ray irradiance measurements covering 0.05-0.4 nm and 0.1-0.8 nm integrated passbands. EXIS was designed and built by the Laboratory for Atmospheric and Space Physics (LASP) at the University of Colorado Boulder. This science-quality dataset is produced by NOAA’s National Centers for Environmental Information (NCEI) and utilizes code provided by LASP, and differs from the L1b operational product used at the NOAA Space Weather Prediction Center (SWPC) in that it incorporates retrospective fixes for issues in the operational product and uses the most recent calibrations.

Resources

4 resources available

  • EXIS XRS L1b daily files available for immediate download

    PLACEHOLDER/VALUE
  • GOES-R Series Product Definition and User Guide (PUG)

    PLACEHOLDER/VALUE
  • NASA GCMD Keyword Community Page

    FILE
  • GOES-R Space Weather Data Access Information Page

    FILE

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov