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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.

Dataset Information
Search and Download
  • GOES Data (download)
    Link into Spidr where data can be downloaded
Distribution Formats
  • NetCDF (nc) and Comma Seprated Variable (csv) ASCII. (Version: NetCDF 3)
Distributor DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Point of Contact Daniel C. Wilkinson
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6137
Daniel.C.Wilkinson@noaa.gov
General Documentation
Originator
  • National Oceanic and Atmospheric Administration (NOAA)
Originator
  • National Weather Service (NWS)
Originator
  • National Centers for Environmental Prediction (NCEP)
Originator
  • Space Weather Prediction Center (SWPC)
Publisher
  • http://www.ngdc.noaa.gov/stp/satellite/goes/
Date(s)
  • publication: 1974-07-01
Dataset Progress Status Under development
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.
Time Period: 1974-07-01  to  Present
Spatial Bounding Box Coordinates:
N: 90
S: -90
E: 180
W: -180
Spatial Coverage Map:
Themes
  • 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
  • WDC/STP, BOULDER > World Data Center for Solar-Terrestrial Physics, Boulder
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
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 Statement Lineage statement not available.
Processing Steps
  • Unknown

Metadata Last Modified: 2011-08-19

For questions about the information on this page, please email: Daniel.C.Wilkinson@noaa.gov