GOES Space Environment Monitor, Magnetometer

Three orthogonal flux-gate magnetometer elements, (spinning twin fluxgate magnetometer prior to GOES-8) provide magnetic field measurements in three mutually perpendicular components: HP, HE and HN. HP is perpendicular to the satellite's orbital plane. HE lies parallel to the satellite-Earth center line and points earthward. HN is perpendicular to both HP and HE, and points westward for GOES-4 and earlier satellites, and eastward for later spacecraft. The Synchronous Meteorological Satellites (SMS-1 and SMS-2) and the Geostationary Operational Environmental Satellites (GOES-1, GOES-2, etc.) all carry on board the Space Environment Monitor (SEM) instrument subsystem. The SEM has provided magnetometer, energetic particle, and soft X-ray data continuously since July 1974. Geosynchronous satellites have an unobstructed view of the sun for all but the few dozen hours per year when the Earth eclipses the sun. You can identify these intervals as gaps in the X-ray data near satellite local midnight in March-April, and September-October. The volume of these data makes it impossible to issue a guarantee as to the quality of each and every data point. Users should be suspicious of 'spikes' in the data and attempt to correlate them with other sources before assuming that they represent the space environment. The time of these observations has not been corrected for the down-link and preprocessing delay which is within 1 - 5 seconds.
Cite this dataset when used as a source.
  • ID not available.
gov.noaa.ngdc.sem:goes_mag_g00038
Download Data
  • GOES Data (download)
    Link into Spidr where data can be downloaded
Other Access
Distribution Formats
  • NetCDF (nc) and Comma Separated Variable (csv) ASCII. (Version: NetCDF 3)
    • File Specification: http://www.unidata.ucar.edu/software/netcdf/
Ordering Instructions Select and retrieve data volumes less than 500 MB via the search option. Contact distributor to order data offline via CD or DVD.
Distributor Daniel C. Wilkinson
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6137
Daniel.C.Wilkinson@noaa.gov
Dataset Point of Contact Daniel C. Wilkinson
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6137
Daniel.C.Wilkinson@noaa.gov
Time Period 1974-07-01 to Present
Spatial Bounding Box Coordinates
N: 90
S: -90
E: 180
W: -180
Spatial Coverage Map
Dataset Information
General Documentation
Publication Dates
  • publication: 1974-07-01
Dataset Progress Status Under development - data is currently in the process of being created
Data Update Frequency Monthly
Supplemental Information
FE 38Superceded by G01252/Purgatory
Purpose Record the time variant in situ magnetic field at Geostationary Orbit.
Use Limitations
  • While NESDIS makes every effort to ensure that its databases are error-free, errors do occur. We ask that you notify us immediately of any errors that you discover in our data. We will make every effort to correct them.
Originators
  • National Oceanic and Atmospheric Administration (NOAA)
  • National Weather Service (NWS)
  • National Centers for Environmental Prediction (NCEP)
  • Space Weather Prediction Center (SWPC)
Publishers
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • https://www.ngdc.noaa.gov/stp/satellite/goes/
Acknowledgments
  • NOAA
Theme keywords NASA/GCMD Earth Science Keywords
  • 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 keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Project keywords Global Change Master Directory (GCMD) Project Keywords
  • ICSU-WDS > International Council for Science - World Data System
Use Constraints
  • Use Constraints: none
Access Constraints
  • Access Constraints: none
Fees
  • No charge for automated online delivery. Custom, and offline requests, require prepayment. Fees vary based on size and complexity.
Lineage information for: dataset
Processing Steps
  • Unknown
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: 2015-09-29
For questions about the information on this page, please email: Daniel.C.Wilkinson@noaa.gov