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NOAA Space Environment Monitor (SEM) Science-Quality Magnetometer (MAG) Data from GOES 8-15

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: May 05, 2026 at 10:42 PM | Dataset Last Updated: April 01, 1994 at 12:00 AM
The Space Environment Monitor (SEM) Magnetometer (MAG) instrument onboard the GOES satellite series measures the magnitude and direction of the Earth's ambient magnetic field in geosynchronous orbit. This data collection includes Reprocessed Level-1b and Level-2 SEM/MAG data from GOES 8-15. The data are enhanced to science quality from the original operational archive. Enhancements include the highest temporal cadence (2Hz), recomputed means, corrected calibration parameters, updated quality flagging, vector measurements in geophysically relevant coordinates, and full ephemeris information. 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).

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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

Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
                                            {
  "fn": "NOAA National Centers for Environmental Information",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:ncei.info@noaa.gov"
}
describedByType application/octet-steam
description The Space Environment Monitor (SEM) Magnetometer (MAG) instrument onboard the GOES satellite series measures the magnitude and direction of the Earth's ambient magnetic field in geosynchronous orbit. This data collection includes Reprocessed Level-1b and Level-2 SEM/MAG data from GOES 8-15. The data are enhanced to science quality from the original operational archive. Enhancements include the highest temporal cadence (2Hz), recomputed means, corrected calibration parameters, updated quality flagging, vector measurements in geophysically relevant coordinates, and full ephemeris information. 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).
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Landing Page for This Dataset",
    "accessURL": "https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ncei.swx:goes_sem-magn-sci/html",
    "mediaType": "text/html",
    "description": "Dataset landing page with general information and links to access the data.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Direct Download (Dataset Files)",
    "accessURL": "https://www.ncei.noaa.gov/data/goes-space-environment-monitor/access/",
    "mediaType": "text/html",
    "description": "Direct download for the dataset.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Contact NCEI",
    "accessURL": "https://www.ncei.noaa.gov/contact",
    "mediaType": "text/html",
    "description": "GOES SEM Level 1b Magnetometer data are available via offline access only. Contact NCEI for more information and to request access to the archived data. Requests are subject to NCEI order fulfillment constraints.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "GOES Space Weather Instruments",
    "accessURL": "https://www.ncei.noaa.gov/products/goes-1-15/space-weather-instruments",
    "mediaType": "text/html",
    "description": "GOES Space Weather Instruments web page",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Global Change Master Directory (GCMD) Keywords",
    "accessURL": "https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords",
    "mediaType": "text/html",
    "description": "The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NOAA National Centers for Environmental Information (NCEI)",
    "accessURL": "https://www.ncei.noaa.gov",
    "mediaType": "text/html",
    "description": "NCEI home page with information, data access and contact information.",
    "describedByType": "application/octet-stream"
  }
]
identifier https://data.noaa.gov/waf/NOAA/NESDIS/NGDC/STP/Space_Weather/iso/xml/goes_sem-magn-sci.xml
issued 1994-04-01T00:00:00.000+00:00
keyword 
                                            [
  "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",
  "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",
  "MAG > Magnetometer",
  "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce"
]
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 1994-04-01T00:00:00.000+00:00
publisher 
                                            {
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
rights otherRestrictions
temporal 1994-04-01T00:00:00+00:00/2020-03-01T00:00:00+00:00
title NOAA Space Environment Monitor (SEM) Science-Quality Magnetometer (MAG) Data from GOES 8-15

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