The EXIS Instrument Engineering Telemetry Data file contains data used to support the generation of EUVS and XRS Level 1b products, and monitor and evaluate the health and performance of the sensor suite. This data is transmitted to the ground in raw digital counts, and subsequently converted into physical units by the ground system. Some of the data pertains to the temperature of components in the sensor suite. This includes temperatures for the power board, interface board, operational heater, entrance slit, detectors, detector boards, microprocessor board, EUVS-C analog to digital converter, and XRS ASICs and other sub-assemblies. Other telemetry includes XRS-A and XRS-B solar minimum and maximum dark current and field of view corrections, and gains. Temperatures are expressed in units of kelvin, and the other telemetry items are in units of counts, counts per digital number, or have no units of measure. A netCDF-4 file containing this EXIS engineering telemetry is generated hourly. Telemetry parameter values are included at one second intervals, and summary statistics, including minimum, maximum, mean and standard deviation, are produced for the one hour period.

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 Space Environment Monitor (SEM) Extreme Ultraviolet Sensor (EUVS) onboard the GOES satellite series measure the EUV in 5 GOES wavelength bands (A-E) from about 5-127 nm. This data is used to investigate solar activity and the associated impacts of extreme and middle ultraviolet absorption on the earth's atmosphere. This data collection includes Reprocessed Level-1b and Level-2 SEM/EUVS data from GOES 13-15, channels A-E. The data are enhanced to science quality from the original operational archive. Enhancements include corrected calibrations, updated quality flagging, full ephemeris information, and both high-cadence and averaged data. The data were produced by NOAA’s National Centers for Environmental Information (NCEI) and archived by NOAA's Comprehensive Large Array-Data Stewardship System (CLASS).

The Space Environment In-Situ Suite (SEISS) Instrument Engineering Telemetry Data file contains data used to monitor and evaluate the health and performance of the sensor suite. This data is transmitted to the ground in raw digital counts, and subsequently converted into physical units by the ground system. All the data pertains to the temperature of components in the sensor suite. Primarily, this includes temperatures for the telescopes and other sensing components. The SEISS Calibration Data file contains data used to support the generation of EHIS, MPS-LO, MPS-HI, and SGPS Level 1b products, and monitor and evaluate the health and performance of the sensor suite. This file contains derived level 1b calibration parameters including raw sensor count rates, valid raw sensor count data percentages, and dead-time and contamination correction factors needed for the production of all the SEISS products.

This data collection consists of archived GOES-R Series Space Environment In-Situ Suite (SEISS) 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. SEISS is comprised of four sensors that monitor proton, electron, and heavy ion fluxes in the magnetosphere: 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). The SEISS 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 SEISS 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 SEISS 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 Geostationary Operational Environmental Satellite-R (GOES-R) Series Advanced Baseline Imager (ABI) Level 0 data from the GOES-East and GOES-West satellites in the operational (OPS) and the post-launch test (PLT) phases. The 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. GOES-17 began operating as GOES-West on February 12, 2019. GOES-T launched on March 1, 2022, and was renamed to GOES-18 on March 14, 2022. GOES-U, the final satellite in the series, is scheduled to launch in 2024. ABI is a multi-channel passive imaging radiometer observing the Western Hemisphere. The ABI 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) Volume 1 (Main) and Volume 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 ABI 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 ABI Level 0 data files are packaged in hourly tar files (data bundles) by satellite for the archive. Recently ingested archive tar files are available for 14 days on an anonymous FTP server for users to download. Data archived on offline tape may be requested from NCEI.