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Earth Magnetic Field, Energetic Particle and Solar X-Ray Flux Levels Measured by GOES Satellites

Metadata from the NOAA Metadata Manager's Repository (NMMR)


Identification_Information:
Citation:
Citation_Information:
Originator:National Geophysical Data Center (comp)
Publication_Date:2004
Title:
Earth Magnetic Field, Energetic Particle and Solar X-Ray Flux Levels Measured by GOES Satellites
Geospatial_Data_Presentation_Form:tabular digital data
Publication_Information:
Publication_Place:Boulder, CO
Publisher:National Geophysical Data Center
Online_Linkage:http://spidr.ngdc.noaa.gov
Description:
Abstract:
The National Geophysical Data Center maintains an active database of Earth magnetic field, energetic particle and solar X-ray flux levels measured by GOES satellites to further the understanding of Earth magnetism and the Sun-Earth environment. The data are collected by sensors on the GOES geostationary satellites (6.6RE) over the Earth's equator. Usually there are two satellites recording similar data at all possible times. One is the 'Western' satellite nominally located at 135 degrees west longitude. The other is the 'Eastern' satellite at around 75 degrees west longitude. The database contains 5-minute and 1-minute averages of the X-rays, energetic particles, and magnetic field data collected by GOES satellites since January 1986. The data are transmitted via direct telemetry to the Space Environment Center (SEC) in Boulder, Colorado where they are use in real-time alerts and space weather forecasts. At the end of each month these data are transferred to the Solar-Terrestrial Physics Division of the National Geophysical Data Center, an organization known internationally as World Data Center A for Solar-Terrestrial Physics. A twin-fluxgate spinning sensor on board teh sattelite allows Earth's magnetic field to be described by three mutually perpendicular components: Hp, He and Hn. Hp is parallel to the satellite spin axis, which is itself 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 SMS-1, SMS-2, GOES-1, GOES-2, GOES-3, and GOES-4, and eastward for later spacecraft. He and Hn are deconvoluted from the transverse component Ht. Field strength changes as small as 0.2 nanoTesla can be measured. The magnetometer samples the field every 0.75 seconds. Solid-state detectors with pulse-height discrimination on board the satellite measure proton, alpha-particle, and electron fluxes. The look direction of the EPS (Energetic Particle Sensor) is perpendicular to the GOES spin axis which is approximately aligned with Earth's rotation axis. Since the satellite spin period, 0.6 seconds, is much shorter than the accumulation times, the EPS provides a spin-averaged estimate of the local high-pitch-angle particle fluxes. The integral electron channel is given in units of count/cm2 sec sr while the other channels are given in count/cm2 sec sr MeV at the average energy. Because GOES spacecraft travel in a geostationary orbit, the E1 and P1 channels are responding primarily to trapped outer-zone particles. The P2 channel may occasionally respond to trapped particles during magnetically disturbed conditions. The geomagnetic cutoff at geostationary orbit is typically of the order of a few MeV as indicated by the lack of trapped P2 response except as noted above. Therefore, the remaining proton and alpha particle channels measure fluxes originating outside the magnetosphere - from the Sun or the heart of the Galaxy. Solar X-ray flux levels, as measured on board the satellite by the space environment monitor system (SEMS), are at two wavelength bands XL: 1-8A and XS: 0.5-4A 'long and short' wavelengths, respectively. They are recorded in units of watts per square meter. These wavelengths provide extremely sensitive full disk measurements and are critical for detection of solar flares. They also are used directly for computing D-region sudden ionospheric disturbances (SID) and short-wave fadeouts (SWF). Counts are made every 3.6 seconds.
Purpose:
Provide information for research and surveyors
Supplemental_Information:
Formally FE 17, 119, 626. Entry_ID G01152
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date:19860101
Ending_Date:Present
Currentness_Reference:
Publication Date
Status:
Progress:In Work
Maintenance_and_Update_Frequency:Monthly
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:-180.000000
East_Bounding_Coordinate:180.000000
North_Bounding_Coordinate:90.000000
South_Bounding_Coordinate:-90.000000
Keywords:
Theme:
Theme_Keyword_Thesaurus:GCMD Earth Science Services Keywords
Theme_Keyword:EARTH SCIENCE SERVICES > Data Analysis And Visualization > Visualization/Image Processing
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Archiving
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Cataloging
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Data Compression
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Data Delivery
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Data Interoperability > Data Reformatting
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Data Interoperability
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Data Mining
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Data Search And Retrieval
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Media Transfer/Data Rescue
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Subsetting/Supersetting
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Transformation/Conversion
Theme_Keyword:EARTH SCIENCE SERVICES > Environmental Advisories > Space Weather Advisories
Theme_Keyword:EARTH SCIENCE SERVICES > Environmental Advisories > Space Weather Advisories > Solar Flares
Theme_Keyword:EARTH SCIENCE SERVICES > Environmental Advisories > Space Weather Advisories > Solar Radiation Storms
Theme_Keyword:EARTH SCIENCE SERVICES > Environmental Advisories > Space Weather Advisories > Radio Blackouts
Theme_Keyword:EARTH SCIENCE SERVICES > Environmental Advisories > Space Weather Advisories > Geomagnetic Storm
Theme_Keyword:EARTH SCIENCE SERVICES > Metadata Handling > Data Discovery
Theme_Keyword:EARTH SCIENCE SERVICES > Metadata Handling > Metadata Transformation/Conversion
Theme_Keyword:EARTH SCIENCE SERVICES > Metadata Handling > Service Discovery
Theme:
Theme_Keyword_Thesaurus:GCMD Science Keywords
Theme_Keyword:EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Particles > Energetic Particles
Theme_Keyword:EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Particles > Particle Flux
Theme_Keyword:EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Particles > Alpha Particles
Theme_Keyword:EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Particles > Electron Flux
Theme_Keyword:EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Particles > Proton Flux
Theme_Keyword:EARTH SCIENCE > Solid Earth > Geomagnetism > Magnetic Field
Theme_Keyword:EARTH SCIENCE > Sun-earth Interactions > Solar Activity > Solar X-rays
Theme_Keyword:EARTH SCIENCE > Sun-earth Interactions > Solar Activity > Solar Flares
Theme:
Theme_Keyword_Thesaurus:GCMD Platform Keywords
Theme_Keyword:GOES > NOAA Geostationary Operational Environmental Satellites
Theme_Keyword:GOES-5 > Geostationary Operational Environmental Satellite 5
Theme_Keyword:GOES-6 > Geostationary Operational Environmental Satellite 6
Theme_Keyword:GOES-7 > Geostationary Operational Environmental Satellite 7
Theme_Keyword:GOES-8 > Geostationary Operational Environmental Satellite 8
Theme_Keyword:GOES-9 > Geostationary Operational Environmental Satellite 9
Theme_Keyword:GOES-10 > Geostationary Operational Environmental Satellite 10
Theme_Keyword:GOES-11 > Geostationary Operational Environmental Satellite 11
Theme_Keyword:GOES-12 > Geostationary Operational Environmental Satellite 12
Theme:
Theme_Keyword_Thesaurus:GCMD Instrument Keywords
Theme_Keyword:SEM > Space Environment Monitor
Theme:
Theme_Keyword_Thesaurus:Uncontrolled Keywords
Theme_Keyword:Short-wave fadeouts
Theme_Keyword:SWF
Theme_Keyword:Sudden ionospheric disturbances
Theme_Keyword:SID
Place:
Place_Keyword_Thesaurus:GCMD Location Keywords
Place_Keyword:Global
Access_Constraints:No Constraints
Use_Constraints:
None
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Contact_Person:Daniel C. Wilkinson
Contact_Address:
Address_Type:Mailing and Physical Address
Address:
NOAA/NESDIS/NGDC E/GC1 325 Broadway
City:Boulder
State_or_Province:CO
Postal_Code:80305-3328
Country:USA
Contact_Voice_Telephone:(303) 497-6137
Contact_Facsimile_Telephone:(303) 497-6513
Contact_Electronic_Mail_Address:Daniel.A.Wilkinson@noaa.gov
Hours_of_Service:7:30 - 5:00 Mountain
Contact Instructions:
Contact Data Center
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Data_Quality_Information:
Logical_Consistency_Report:
Completeness_Report:
Lineage:
Process_Step:
Process_Description:
Process_Date:
Back to Top
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Contact_Person:Eric A. Kihn
Contact_Address:
Address_Type:Mailing and Physical Address
Address:
NOAA/NESDIS/NGDC E/GC1 325 Broadway
City:Boulder
State_or_Province:CO
Postal_Code:80305-3328
Country:USA
Contact_Voice_Telephone:(303) 497-6349
Contact_Facsimile_Telephone:(303) 497-6513
Contact_Electronic_Mail_Address:Eric.A.Kihn@noaa.gov
Hours_of_Service:7:30 - 5:00 Mountain
Contact Instructions:
Contact Data Center
Resource_Description:GEOMAGNETICS
Distribution_Liability:
While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA 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. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name:ASCII
File_Decompression_Technique:ZIP archive
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:http://spidr.ngdc.noaa.gov
Network_Resource_Name:http://clust1.wdcb.ru/spidr
Fees:Free of charge
Custom_Order_Process:
Contact Data Center
Technical_Prerequisites:
Contact Data Center
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Metadata_Reference_Information:
Metadata_Date:20040610
Metadata_Review_Date:20040610
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Contact_Person:Eric A. Kihn
Contact_Address:
Address_Type:Mailing and Physical Address
Address:
NOAA/NESDIS/NGDC E/GC1 325 Broadway
City:Boulder
State_or_Province:CO
Postal_Code:80305-3328
Country:USA
Contact_Voice_Telephone:(303) 497-6349
Contact_Facsimile_Telephone:(303) 497-6513
Contact_Electronic_Mail_Address:EricA.Kihn@noaa.gov
Hours_of_Service:7:30 - 5:00 Mountain
Contact Instructions:
Contact Data Center
Metadata_Standard_Name:Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version:FGDC-STD-001-1998
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Publication date:16-02-2007 12:55:31
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