NSSDC Master Catalog Display: Data Set |
0.5-Second Electron Spectra at 0.1-2 MeV from the CRRES MEA Magnetic Spectrometer
NSSDC ID:SPMS-00233
Other ID(s)
90-065A-10A
Availability: Data at NSSDC Ready for Distribution
Time Span: 1990-07-27 to 1991-10-11 (as determined by NSSDC)
Description
This data set from the CRRES Magnetic Electron Spectrometer (MEA) consists of
counting rates from 17 energy channels in the range of 0.1-2 MeV at 0.512
second time intervals. A background channel provides corrections for internal
electron scattering and for higher energy particles penetrating through
shielding. Also included are pitch angle derived from CRRES magnetometer data,
spacecraft geographic coordinates and altitude, L shell, and the local and
equatorial magnetic field magnitudes from a model of the earth's geomagnetic
field. Pitch angle information is not available until about CRRES orbit 50,
when the magnetometer was first deployed, and the spacecraft spin rate was
faster until then. The data files are in binary INTEL 32-bit floating point
format. Document files in ascii format describe the data set contents, data
format, background corrections, chemical releases during the CRRES mission
including orbital parameters, MEA geometric factors and energy channels,
description of the MEA instrument, and survey of MEA data coverage for all
CRRES orbits. FORTRAN source and executable code are provided to produce ASCII
listings of selected parameters from the binary data files for easy input to
spreadsheet and plotting programs. This code permits averaging of samples,
selection of limited pitch angles, error-correction, basic background
correction, conversion from counts to flux, and extraction of numerous
ephemeris parameters.
Mission Name(s): Experiment(s)
CRRES: Medium Electron Sensor
Discipline(s)
Space Physics: Magnetospheric Studies
Archive Locations
National Aeronautics and Space Administration (National Space Science Data Center)
Media Information
11 CD-Write Once
Personal Information
Experiment Information
Mission Information
NSSDC Space Physics page
NSSDC home page
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For questions about the NSSDC Master Catalog, please contact:
Dr. James Thieman
National Space Science Data Center, Code 633.2
NASA Goddard Space Flight Center, Greenbelt, MD 20771
+1-301-286-9790
james.thieman@gsfc.nasa.gov
|
NASA Official: J. H. King (joseph.h.king@gsfc.nasa.gov)
Last Updated: 2000-02-25
Output Generated: 2001-03-06
Programming by: Harold Felder(Harold.Felder@gsfc.nasa.gov)