Automatically generated event list for STEREO-LET

2026-03-01 18:13:51

The automatically generated event list for the STEREO Low Energy Telescope (LET) identifies Solar Energetic Particle (SEP) events and Co-rotating Interaction Regions (CIRs) based on specific proton rate thresholds and spectral characteristics.
Automatically generated event list for STEREO-LET, requiring that 3-hour averaged 1.8-3.6 MeV proton rate exceeds 5x10^-4 particles/(cm^2 sr s MeV)
Peak Proton Intensities often occur at different times for each energy bin. Proton fluences have had a constant background assumed to be
2.3x10^-5 particles/(cm^2 sr s MeV) subtracted. The "2-Point Index" is obtained from the 1.8-3.6 and 4-6 MeV proton FLUENCES. The He/H ratio is that of the 1.8-3.6 MeV/n proton and He FLUENCES, where a constant background of 1x10^-5 particles/(cm^2 sr s MeV/n) has been subtracted from the He. Uncertainties in the index and He/H are statistical errors ONLY.
Event Types are tentative identifications ONLY, automatically determined based on spectral hardness and He/H ratio. Events with an added "?" fall within one standard deviation of the chosen boundary between SEPs and CIRs in at least one parameter (index or He/H). An "e-" after the type indicates that the peak of an SEPT electron event falls between the event start and end times.

Text.ASCII

2007-01-05 12:00:00

2011-06-19 12:00:00

Evt #

Event number

Start time

End time

Peak Proton Intensities p/(cm2sr s MeV) 1.8 - 3.6

Peak Proton Intensities p/(cm2sr s MeV) 4 - 6

Peak Proton Intensities p/(cm2sr s MeV) 6 - 10

Peak Proton Intensities p/(cm2sr s MeV) 10-15

Proton Fluences: p/(cm^2 sr MeV) 1.8 - 3.6

Proton Fluences: p/(cm^2 sr MeV) 4 - 6

Proton Fluences: p/(cm^2 sr MeV) 6 - 10

Proton Fluences: p/(cm^2 sr MeV) 10 - 15

2-Point Index (Value +/-)

He/H @1.8-3.6 (Value +/-)

Type