GOES-R Series Level 1b EXIS X-Ray Sensor (XRS) Product in Daily Aggregations
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DateTime: 2022-09-27T04:02:32
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title: GOES-R Series Level 1b EXIS X-Ray Sensor (XRS) Product in Daily Aggregations
alternateTitle: GOES-R EXIS XRS L1b
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date: 2018-07-18
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abstract: 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.
purpose: The GOES-R X-Ray Sensor (XRS) monitors solar flares and helps predict solar proton events that can penetrate Earth’s magnetic field. The XRS is important in monitoring X-ray input into the Earth's upper atmosphere and alerts scientists to X-ray flares that are strong enough to cause radio blackouts and aides in space weather predictions. This is different from the SUVI instrument which takes extreme ultraviolet images of the sun to monitor features on the sun as well as flares and coronal mass ejections. EXIS provides more information on solar flares and includes a more complete and detailed report of solar variability than what is available from the previous generation of GOES.
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individualName: Janet Machol
organisationName: NOAA National Centers for Environmental Information
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keyword: EARTH SCIENCE > SUN-EARTH INTERACTIONS > SOLAR ACTIVITY > SOLAR X-RAY EMISSIONS
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keyword: GOES > Geostationary Operational Environmental Satellites
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keyword: Solar/Space Observing Instruments > X-Ray/Gamma Ray Detectors > > > EXIS-XRS-GOESR
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otherConstraints: NCEI cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NCEI makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
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supplementalInformation: NESDIS produces GOES-R EXIS XRS Level 1b products from GOES-R EXIS Level 0 source files. These output files span 30 seconds of one-second observations. NOAA's National Centers for Environmental Information (NCEI) then takes the 30-second files and aggregates them to produce daily EXIS XRS L1b products. These daily files are intended to be more convenient for users than the original 30-second files.
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title: OR_EXIS-L1b-ALG-SFXR_<Version>.zip (planned publication in August 2018)
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