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DMSP SSJ/4 Measurements of High Energy Particles

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


Identification_Information:
Citation:
Citation_Information:
Originator:National Geophysical Data Center (comp)
Publication_Date:2004
Title:
DMSP SSJ/4 Measurements of High Energy Particles
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:
DMSP SSJ/4 data provide a complete energy spectrum of the low energy particles that cause the aurora and other high latitude phenomena. The data set consists of electron and ion particle fluxes between 30 eV and 30 KeV recorded every second, satellite ephemeris and magnetic coordinated where the particles are likely to be absorbed by the atmosphere. Differential particle fluxes may be as large as 10 (10) at the lowest energies. The detectors also record high energy ions that penetrate both the satellite and the instrument. This is most noticeable in the South Atlantic Anomaly and the "horns" of the radiation belts. The SSJ.4 instrument was designed to measure the flux of charged particles as they enter the Earth's upper atmosphere from the near- Earth space environment. It consists of four electrostatic analyzers that record electrons and ions between 30 eV and 30 KeV as they flow past the spacecraft toward the Earth. The instruments "look" toward the satellite zenith. The curved plate detectors allow precipitating electrons and ions to enter through an aperture of about 2 x 10 (FWHM). Electrons and ions of the selected energy are deflected toward the target by an imposed electric field applied across the two plates. The two low energy detectors consist of 10 channels centered at 34, 49, 71, 101, 150, 218, 320, 460, 670, 960 KeV. The high energy detector measures particles in 10 channels centered at 1.0, 1.4, 2.1, 3.0, 4.4, 6.5, 9.5, 14.0, 20.5, and 29.5 KeV. Each detector dwells at each channel for 9.09 seconds from high energy channel to low. A complete cycle is sampled each second. The nominal response efficiency is 50% at a value of 10% of the central energy for that channel. The instruments are built by Emmanuel College under contract from the Space Physics Division of Phillips Laboratory and calibrated at Rice University. The National Geophysical Data Center (NGDC) has received DMSP precipitating electron and ion data since March 1975 from sensors SSJ/2, SSJ/3, SSJ/4 and F11. Processed data from March 75 to December 92 were received from AFGWC on magnetic tape. Since March 9, 1992 we have received raw satellite data from the ARchive Processing System on 8 mm tapes. Archive tapes are organized by satellite-orbit and they contain an automated format statement, an inventory, header information for each orbit and data records. Each data record consists of the satellite ephemeris in geographic and geomagnetic coordinates and 4 one-second values in units of differential particle flux for the 40 channels. DMSP data can be downloaded through the Space Physics Interactive Data Resource (SPIDR) at http://spidr.ngdc.noaa.gov/spidr/index.html
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:19980201
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 > 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 > Radiance Or Imagery > Platform Characteristics > Orbital Characteristics
Theme_Keyword:EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Particles > Differential Flux
Theme_Keyword:EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Particles > Electron Flux
Theme_Keyword:EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Particles > Energetic Particles
Theme_Keyword:EARTH SCIENCE > Solid Earth > Geomagnetism > Reference Fields
Theme:
Theme_Keyword_Thesaurus:GCMD Platform Keywords
Theme_Keyword:DMSP > Defense Meteorological Satellite Programnal Environmental Satellites
Theme_Keyword:DMSP 5D-2/F10 > Defense Meteorological Satellite Program-F10
Theme_Keyword:DMSP 5D-2/F11 > Defense Meteorological Satellite Program-F11
Theme_Keyword:DMSP 5D-2/F12 > Defense Meteorological Satellite Program-F12
Theme_Keyword:DMSP 5D-2/F13 > Defense Meteorological Satellite Program-F13
Theme_Keyword:DMSP 5D-2/F14 > Defense Meteorological Satellite Program-F14
Theme_Keyword:DMSP 5D-2/F15 > Defense Meteorological Satellite Program-F15
Theme:
Theme_Keyword_Thesaurus:GCMD Instrument Keywords
Theme_Keyword:SSJ/4 > Precipitating Plasma Monitor
Theme:
Theme_Keyword_Thesaurus:Uncontrolled Keywords
Theme_Keyword:Aurora
Theme_Keyword:Charged particles
Theme_Keyword:Polar orbiters
Theme_Keyword:Precipitating particles
Theme_Keyword:DMSP/SSJ4
Place:
Place_Keyword_Thesaurus:GCMD Location Keywords
Place_Keyword:Global
Place:
Place_Keyword_Thesaurus:GCMD Location Keywords
Place_Keyword:High Latitude Magnetosphere
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:Edward H. Erwin
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) 497-6133
Contact_Facsimile_Telephone:(303) 497-6513
Contact_Electronic_Mail_Address:Edward.H.Erwin@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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Metadata stylesheets are provided courtesy of ESRI. Copyright (c) 2000-2002, Environmental Systems Research Institute, Inc. All rights reserved.

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Publication date:16-02-2007 12:56:37
Author:Kokovin Dmitry
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