Solar Particle Event Spectra

Proton, helium, oxygen and electron fluence spectra during large solar particle events

These data are from instruments on the ACE, SAMPEX, and several of NOAA's GOES spacecraft.

Ion spectra are measured from ~0.1 to >100 MeV/nucleon, and electron spectra are measured from ~0.04 to 8 MeV.

The Top 30 SEP Events of Solar Cycle 23

References Instruments

Energy Intervals Protons Helium Oxygen Excel Format

Event Summaries Fluence Measurement Intervals Spectral Fit Parameters

The "Spectral Fits" data for each event in the table below are obtained from the Double Power-Law fitting parameters.
1997 November 06 Fluence Spectra Spectral Fits Excel Format
1998 April 20 Fluence Spectra Spectral Fits Excel Format
1998 May 2 Fluence Spectra Spectral Fits Excel Format
1998 May 6 Fluence Spectra Spectral Fits Excel Format
1998 August 24 Fluence Spectra Spectral Fits Excel Format
1998 September 30 Fluence Spectra Spectral Fits Excel Format
2000 July 14 Fluence Spectra Spectral Fits Excel Format
2000 November 08 Fluence Spectra Spectral Fits Excel Format
2001 April 02 Fluence Spectra Spectral Fits Excel Format
2001 April 10 Fluence Spectra Spectral Fits Excel Format
2001 April 15 Fluence Spectra Spectral Fits Excel Format
2001 April 18 Fluence Spectra Spectral Fits Excel Format
2001 November 4 Fluence Spectra Spectral Fits Excel Format
2001 December 26 Fluence Spectra Spectral Fits Excel Format
2002 April 21 Fluence Spectra Spectral Fits Excel Format
2002 August 24 Fluence Spectra Spectral Fits Excel Format
2002 November 09 Fluence Spectra Spectral Fits Excel Format
2003 October 26 Fluence Spectra Spectral Fits Excel Format
2003 October 28 Fluence Spectra Spectral Fits Excel Format
2003 October 29 Fluence Spectra Spectral Fits Excel Format
2003 November 02 Fluence Spectra Spectral Fits Excel Format
2003 November 04 Fluence Spectra Spectral Fits Excel Format
2005 January 17 Fluence Spectra Spectral Fits Excel Format
2005 January 20 Fluence Spectra Spectral Fits Excel Format