NOAA Operational GOES 8-15 Space Environment Monitor (SEM) Level 0 Data

GOES-SEM-L0

browse graphicImage of NOAA GOES spacecraft
The Space Environment Monitor (SEM) is a suite of instruments onboard the GOES satellite series. The objective of the SEM package is to measure solar radiation in the X-ray and Extreme Ultraviolet (EUV) region, the in-situ magnetic field, and the energetic particle environment at geosynchronous orbit. This collection contains L0 data from GOES 8-12, provided as monthly binary files and L0 data from GOES 13-15, provided as daily binary and ASCII files. The SEM instrument on GOES 8-12 is composed of four sensors: SEM/EPS (Energetic Particle Sensor), SEM/HEPAD (High Energy Proton and Alpha Particles Detector), SEM/MAG (Magnetometer), and SEM/XRS (X-Ray Sensor). The GOES 13-15 SEM suite added these 3 sensors: SEM/EUVS (Extreme Ultraviolet Sensor), SEM/MAGED (Magnetospheric Electron Detector), and SEM/MAGPD (Magnetospheric Proton Detector). On GOES 13-15, the historical EPS sensor was renamed EPEAD (Electron, Proton, and Alpha Detector) and the term EPS now refers to the suite of particle detectors (EPEAD, MAGED, MAGPD). Combined these sensors provide magnetic field, energetic particle, and solar x-ray and EUV data. The magnetometer (MAG) measures the magnitude and direction of the magnetic field. The energetic particle detectors (EPS, HEPAD, EPEAD, MAGED, MAGPD, and MAGED) measure a spectrum of electron, proton, and alpha-particle fluxes caused by solar activity and galactic cosmic rays. The solar x-ray sensor (XRS) measures solar X-ray fluxes for the wavelength bands of 0.05-.4 nm (short channel) and .1 to .8 nm (long channel). The extreme ultraviolet sensor (EUVS) measures the EUV in 5 bands (A-E) spanning wavelengths 5-127 nm. The temporal period of record (POR) for this collection extends from April 1994 to March 2020. The data were produced by the NOAA/NESDIS Office of Satellite and Product Operations (OSPO) and archived by NOAA's Comprehensive Large Array-Data Stewardship System (CLASS). To access this data, contact NCEI for distribution and ordering instructions.
  • Cite as: NOAA Operational GOES 8-15 Space Environment Monitor (SEM) Level 0 Data. [indicate subset used]. NOAA National Centers for Environmental Information. [access date].
  • gov.noaa.ncei.swx:goes_sem-l0
  • DSI 2086_01
gov.noaa.ncei.swx:goes_sem-l0
XML
Distribution Formats
  • Gzip-tar
  • Binary
Ordering InstructionsContact NCEI for distribution options and ordering instructions.
DistributorNOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Customer Engagement Branch
NOAA National Centers for Environmental Information
1-828-271-4800
ncei.info@noaa.gov
Time Period1994-05 to 2020-03
Spatial Reference SystemNon geographic dataset
Spatial Bounding Box Coordinates Bounding coordinates not available
General Documentation
Publication Dates
  • publication: 1994-05
Data Presentation Form Digital image
Dataset Progress StatusComplete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency Not planned
PurposeTo monitor space weather activity.
Dataset Citation
  • Cite as: NOAA Operational GOES 8-15 Space Environment Monitor (SEM) Level 0 Data. [indicate subset used]. NOAA National Centers for Environmental Information. [access date].
Cited Authors
  • NOAA National Environmental Satellite Data, and Information Service
Publishers
  • NOAA National Centers for Environmental Information
Theme keywordsGlobal Change Master Directory (GCMD) Science Keywords
  • EARTH SCIENCE > Solar Physics > Solar Energetic Particles > Electron Flux
  • EARTH SCIENCE > Solar Physics > Solar Energetic Particles > Energetic Particles
  • EARTH SCIENCE > Solar Physics > Solar Energetic Particles > Particle Flux
  • EARTH SCIENCE > Solar Physics > Solar Activity > Solar Events
  • EARTH SCIENCE > Solar Physics > Solar Activity > Solar Flares
  • EARTH SCIENCE > Sun-earth Interactions > Solar Activity > Solar X-ray Emissions
  • EARTH SCIENCE > Spectral/Engineering > X-Ray
  • EARTH SCIENCE > Spectral/Engineering > X-Ray > X-Ray Flux
  • EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Dynamics > Magnetic Fields/Magnetic Currents
  • EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Dynamics > Magnetic Fields/Magnetic Currents
  • EARTH SCIENCE > Solid Earth > Geomagnetism > Geomagnetic Forecasts
  • EARTH SCIENCE > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics
  • EARTH SCIENCE > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Geomagnetic Forecasts
  • EARTH SCIENCE > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Geomagnetic Indices
  • EARTH SCIENCE > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Magnetic Fields/Magnetic Currents
  • EARTH SCIENCE > Sun-Earth Interactions > Ionosphere/Magnetosphere Dynamics > Magnetic Storms
Data Center keywordsGlobal Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Platform keywordsGlobal Change Master Directory (GCMD) Platform Keywords
  • GOES-8 > Geostationary Operational Environmental Satellite - 8
  • GOES-9 > Geostationary Operational Environmental Satellite - 9
  • GOES-10 > Geostationary Operational Environmental Satellite - 10
  • GOES-11 > Geostationary Operational Environmental Satellite - 11
  • GOES-12 > Geostationary Operational Environmental Satellite - 12
  • GOES-13 > Geostationary Operational Environmental Satellite - 13
  • GOES-14 > Geostationary Operational Environmental Satellite - 14
  • GOES-15> Geostationary Operational Environmental Satellite - 15
Instrument keywordsGlobal Change Master Directory (GCMD) Instrument Keywords
  • EPEAD > Electron, Proton, and Alpha Detector
  • EPS > Energetic Particle Sensor
  • EUVS > Extreme Ultraviolet Sensor
  • HEPAD > High Energy Proton and Alpha Detector
  • MAG > Magnetometer
  • MAGED > Magnetospheric Electron Detector
  • MAGPD > Magnetospheric Proton Detector
  • XRS > X-ray Sensor
Use Constraints
  • Cite as: NOAA Operational GOES 8-15 Space Environment Monitor (SEM) Level 0 Data. [indicate subset used]. NOAA National Centers for Environmental Information. [access date].
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Access Constraints
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, 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.
Fees
  • In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Lineage StatementThe data were produced by the NOAA National Environmental Satellite Data, and Information Service (NESDIS).
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Last Modified: 2023-11-10
For questions about the information on this page, please email: ncei.info@noaa.gov