This catalog lists the electron enhancements from the ACE/EPAM instrument since 1997 in two energy channels. The catalog is organized as a table that presents the solar energetic particles (electrons) observed during solar cycle 23 (1996-2008) and solar cycle 24 (2009-2019). The catalog provides the following information: onset, peak times (in UT), peak electron intensity, and onset-to-peak electron fluence at 103-175 keV energy channel and also the peak electron intensity, and the onset-to-peak fluence at 175-315 keV energy channel. In addition, the solar sources (flares and coronal mass ejections) of the electron events are identified, where possible, with their properties noted. Furthermore, intensity and onset-to-peak fluence of the the associated solar energetic proton events (which have the same solar origin of the solar energetic electrons) at two energy channels; 19-28 MeV and 28-72 MeV, are listed.  The properties of proton events are taken from Miteva R., Samwel S.W., Costa_Durate M.V., The Wind/EPACT Proton Event Catalog (1996-2016), 2018, Sol. Phy., 293: 27. Further information is given as a comment. Extensions of the catalog (or corrections if needed) will appear regularly online. 

• Explanatory notes:
  • Electron data: from CDAweb database provided with 12-sec time resolution.
  • Onset time (UT): identified as the time of 3-sigma intensity value above pre-event level. 
  • Peak time (UT): identified at the maximum of the particle profile (local enhancements are not considered).
  • J_e (cm² s sr keV) ⁻¹: peak electron intensity after subtraction of the pre-event level 
  • F_e (cm² s sr keV) ⁻¹: Onset- to- peak electron fluence 
  • J_p (cm² s sr MeV) ⁻¹: Peak proton intensity after subtraction of the pre-event level 
  • F_p (cm² s sr MeV) ⁻¹: Onset- to- peak proton fluence 
  • The reported here onset/peak times and J_e are based on 5-point smoothed data.
• Abbreviations:
  • no: no event identified
  • nd: next day
  • pd: previous day
  • u: uncertain
  • gap: data gap
  • v: Visual

                        If you want to use the data in a paper, book, or any other kind of electronic publication, please give credit to:  ACE/EPAM electron event catalog (http://www.nriag.sci.eg/ace_electron_catalog/)

• Acknowledgements:
  • We use electron data provided by: CDAweb database
  • flare information from: GOES flare listings and Solarmonitor.org
  • CME information from: CDAW LASCO CME catalog

• Links:
  • National Research Institute of Astronomy and Geophysics (NRIAG)
  • http://newserver.stil.bas.bg/SEPcatalog/index.html
  • This Database was done under SCOSTEP VarSITI scientific program with the project ‘Solar energetic electrons and radio emission signatures’ and SCOSTEP PRESTO scientific program under the project ‘On the relationship between major space weather phenomena in solar cycle 23 and 24.

Contact: Susan.W.Samwel  (samwelsw@nriag.sci.eg)