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GOES Solar X-Ray Imager (SXI) L0 & L1b data from SWPC

Published by DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 19, 2025 | Last Modified: 2001-08-13T00:00:00.000+00:00
The Solar X-Ray Imager (SXI) instrument onboard GOES 12-15 is an X-ray telescope used for the early detection of solar flares, coronal mass ejections, and space phenomena that impact flight and satellite communications. The Solar X-ray Imager was the first X-ray telescope to record a 'full-disk' image of the Sun, thus providing forecasters with the ability to detect solar storms and issue real-time solar forecasts. The SXI instrument records coronal images in continuous sequence at 1-minute intervals. NOAA’s Space Weather Prediction Center (SWPC) received the SXI telemetry stream directly from GOES satellites, processed the data, and integrated the observations into space weather alerts and prediction services. This data collection includes Level-0 (L0) and Level-1b (L1b) SXI data from GOES 12-15. The temporal period of record (POR) extends from August 2001 to March 2020. The data are provided in FITS and PNG formats, and are accessible via direct download from NOAA's National Centers for Environmental Information (NCEI). The data were produced by SWPC and are archived with NOAA's Comprehensive Large Array-Data Stewardship System (CLASS).

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