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Directional energetic particle fluxes from STEREO A&B IMPACT LET

Heliocentric locations of spacecraft
Spectra of H and He from many sources
Spectra for Z>=1 species from many sources

This interface allows users to create a series of spectral plots of STEREOA and B Proton(H)and/or He4 directional fluxes
Data description and source used are at

The relation between the sector index number and the look direction is discussed at and

Time span: 
STEREO-A/LET   H 2010-01-01 - 2014-09-30 
STEREO-A/LET He4 2007-04-01 - 2014-09-30
STEREO-B/LET   H 2010-01-01 - 2014-09-27 
STEREO-B/LET He4 2007-04-01 - 2014-09-27

Please enter your selections and then click on the Submit button.

Spacecraft Species
home pages
Index number of Sector (1-16)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
STEREO-A Protons
STEREO-B Protons

* Enter start and stop times over which to make average fluxes for first spectral plot
    (Use YYYYMMDD format)

     Start      Stop

*Optional specifications

      Enter energy range(MeV/n) for plot and power law fit: Start      Stop
      Y scale range: Bottom (e.g., 1.0e-5)      Top (e.g., 1.0e+1)
Character size(0.5-2.0): Connect Type:
Symbol Size(0.1-4.0): Image size (pixels): X: Y:

This interface was built for the Virtual Energetic Particle Observatory, whose Principal Investigator is John F. Cooper
If you have any questions/comments about this service contact: Dr. Natalia Papitashvili, SPDF, Code 672, NASA/Goddard Space Flight Center, Greenbelt, MD 20771

NASA Official: Dr. Robert McGuire, Head of the Space Physics Data Facility