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.

The Space Environment In-Situ Suite (SEISS) is comprised of four sensors that monitor proton, electron, and heavy ion fluxes in the magnetosphere. These four sensors are the Energetic Heavy Ion Sensor (EHIS), the Magnetospheric Particle Sensors - High and Low (MPS-HI and MPS-LO), and the Solar and Galactic Proton Sensor (SGPS). There are two SGPS units on each satellite, one looking westward and one looking eastward. SEISS L2 data are used by NOAA’s Space Weather Prediction Center to drive the solar radiation storm alerts, based on NOAA’s space weather scales and the >2 MeV electron radiation belt alert, and to improve energetic particle forecasts. These SEISS Level 2 (L2) data include several different products: one and five-minute averages of fluxes from MPS-HI, MPS-LO and SGPS; one and five-minute integral fluxes from SGPS; density and temperature moments from MPS-HI and MPS-LO; solar particle event detection and rate of rise; and linear energy transfer from EHIS heavy ions. Data are in netCDF-4 format.

The GOES-R Extreme Ultraviolet and X-Ray Irradiance Sensors (EXIS) X-Ray Sensor (XRS) Level 1b science-quality data contain 1-second cadence soft X-Ray irradiance measurements covering 0.05nm - 0.4nm (Channel A) and 0.1-0.8 nm (Channel B) integrated passbands. Each channel has two irradiance sensors to capture the full dynamic range of the solar X-Ray irradiance. 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. The science-quality data have been reprocessed from the start of the mission to the present date. Both the science-quality and the operational data sets contain recovered data due to spurious dropouts.

This data collection consists of archived GOES-R Series Extreme Ultraviolet and X-Ray Irradiance Sensors (EXIS) Level 0 data from the operational GOES-East and GOES-West satellites. The Geostationary Operational Environmental Satellite-R (GOES-R) series provides continuity of the GOES mission through 2035 and improvements in geostationary satellite observational data. GOES-16, the first GOES-R satellite, began operating as GOES-East on December 18, 2017, and GOES-17 began operating as GOES-West on February 12, 2019. On board EXIS are two main sensors, the Extreme Ultraviolet Sensor (EUVS) and the X-Ray Sensor (XRS) which monitor solar irradiance and detect solar flares that impact the upper atmosphere. The EXIS Level 0 data are composed of Consultative Committee for Space Data Systems (CCSDS) packets containing the science, housekeeping, engineering, and diagnostic telemetry data downlinked from the instrument. The Level 0 data files also contain orbit and attitude/angular rate packets generated by the GOES spacecraft. Each CCSDS packet contains a unique Application Process Identifier (APID) in the primary header that identifies the specific type of packet, and is used to support interpretation of its contents. Users may refer to the GOES-R Series Product Definition and Users’ Guide (PUG) Volumes 1 (Main) and 2 (Level 0 Products) for Level 0 data documentation. Related instrument calibration data and Level 1b processing information are archived and available for order at the NOAA CLASS website. The EXIS Level 0 data files are delivered in a netCDF-4 file format, however, the constituent CCSDS packets are stored in a byte array making the data opaque for standard netCDF reader applications. The EXIS Level 0 data files are packaged in daily tar files (data bundles) by satellite for the archive. Recently ingested archive tar files are available for 14 days on a CLASS-hosted anonymous FTP server for users to download. Data archived on tape are available to users by special order through NCEI customer service.

This data collection consists of archived GOES-R Series Extreme Ultraviolet and X-Ray Irradiance Sensors (EXIS) Level 0 data from the operational GOES-East and GOES-West satellites. The Geostationary Operational Environmental Satellite-R (GOES-R) series provides continuity of the GOES mission through 2035 and improvements in geostationary satellite observational data. GOES-16, the first GOES-R satellite, began operating as GOES-East on December 18, 2017, and GOES-17 began operating as GOES-West on February 12, 2019. On board EXIS are two main sensors, the Extreme Ultraviolet Sensor (EUVS) and the X-Ray Sensor (XRS) which monitor solar irradiance and detect solar flares that impact the upper atmosphere. The EXIS Level 0 data are composed of Consultative Committee for Space Data Systems (CCSDS) packets containing the science, housekeeping, engineering, and diagnostic telemetry data downlinked from the instrument. The Level 0 data files also contain orbit and attitude/angular rate packets generated by the GOES spacecraft. Each CCSDS packet contains a unique Application Process Identifier (APID) in the primary header that identifies the specific type of packet, and is used to support interpretation of its contents. Users may refer to the GOES-R Series Product Definition and Users’ Guide (PUG) Volumes 1 (Main) and 2 (Level 0 Products) for Level 0 data documentation. Related instrument calibration data and Level 1b processing information are archived and available for order at the NOAA CLASS website. The EXIS Level 0 data files are delivered in a netCDF-4 file format, however, the constituent CCSDS packets are stored in a byte array making the data opaque for standard netCDF reader applications. The EXIS Level 0 data files are packaged in daily tar files (data bundles) by satellite for the archive. Recently ingested archive tar files are available for 14 days on a CLASS-hosted anonymous FTP server for users to download. Data archived on tape are available to users by special order through NCEI customer service.

The Solar Ultraviolet Imager (SUVI) Instrument Engineering Telemetry Data file contains data used to support the generation of SUVI Level 1b products, and monitor and evaluate the health and performance of the instrument. This data is transmitted to the ground in raw digital counts, and subsequently converted into physical units by the ground system. Most of the data pertains to the temperature of components in the instrument. This includes temperatures for the guide telescope, door mechanism, supporting structure, shutter, aperture, filter wheels, mirrors, electronics, and CCD. CCD bias voltages are also included. The SUVI Dark Frame Data file contains an image produced by the SUVI with the camera’s shutter closed. A dark frame measures the inherent bias and noise in the camera electronics, and is used to identify, track, and monitor permanently bad pixels. Dark frames are collected in the operational imaging epoch of the SUVI, and support the radiometric correction of the solar imagery products. Up to ten dark frames are used to support of radiometrically correcting individual solar images. The SUVI Miscellaneous Frame Data file contains a special image produced by the SUVI to support several calibration related activities. Specific types of images include glass, flat-field, and light transfer curve.

The Solar Ultraviolet Imager (SUVI) Instrument Engineering Telemetry Data file contains data used to support the generation of SUVI Level 1b products, and monitor and evaluate the health and performance of the instrument. This data is transmitted to the ground in raw digital counts, and subsequently converted into physical units by the ground system. Most of the data pertains to the temperature of components in the instrument. This includes temperatures for the guide telescope, door mechanism, supporting structure, shutter, aperture, filter wheels, mirrors, electronics, and CCD. CCD bias voltages are also included. The SUVI Dark Frame Data file contains an image produced by the SUVI with the camera’s shutter closed. A dark frame measures the inherent bias and noise in the camera electronics, and is used to identify, track, and monitor permanently bad pixels. Dark frames are collected in the operational imaging epoch of the SUVI, and support the radiometric correction of the solar imagery products. Up to ten dark frames are used to support of radiometrically correcting individual solar images. The SUVI Miscellaneous Frame Data file contains a special image produced by the SUVI to support several calibration related activities. Specific types of images include glass, flat-field, and light transfer curve.

The GOES-R Extreme Ultraviolet and X-Ray Irradiance Sensors (EXIS) Extreme Ultraviolet Sensor (EUVS) measures solar spectral irradiance at discrete wavelengths between 25 and 141 nm and in the vicinity of 280 nm. GOES-R EUVS makes extreme ultraviolet (EUV) and far ultraviolet (FUV) high-spectral-resolution measurements of distinct solar emission lines representative of different layers of the solar atmosphere. The L1b data products derived from EUVS observations are irradiances for seven solar lines, the Magnesium core-to-wing ratio (i.e., the Mg II index), and EUV proxy spectra from 5 to 127 nm. The nominal data cadence is 30-seconds.

These SUVI Level 2 (L2) data are designed for use by the NOAA-NWS Space Weather Forecast Office and include several different products: composite images, thematic maps, bright regions, flare locations, coronal hole boundaries, coronal hole images, and fixed and running difference images. The SUVI Composite Image product is a weight average using the short and long exposures found in the SUVI Level-1b product to produce a high-dynamic range image. SUVI Fixed Difference images use a set "reference" image to produce difference images with respect to a particular event. SUVI Running Difference images use the most recent data to produce difference images showing short-term changes in the solar corona. The SUVI Thematic Map is a "mask" image that shows the automatically classified solar features. Composite images, as well as fixed and running difference images, are available in each of SUVI's six wavelengths. SUVI image products are available as FITS files. The SUVI Coronal Hole Boundary product contains lists of the boundary pixels in both image and heliographic coordinates for all coronal holes identified in the SUVI Thematic Map. The SUVI Bright Region Report uses the SUVI Thematic Map and SUVI Composite Image products to provide statistics on identified bright regions on the Sun. The SUVI Flare Location Report provides locations and statistics on flares identified by either the SUVI Thematic Map or the XRS Event Detection products. These products, Coronal Hole Boundaries, Bright Region Report, and Flare Location Report, are tabular data provided in netCDF-4 format.

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).