DOI: 10.5281/zenodo.17520214
title: SPEARHEAD E>100 MeV SOHO/ERNE catalogue

description: The SPEARHEAD E>100 MeV SOHO/ERNE catalogue includes 172 Solar Energetic Particle (SEP) events. A description of the catalogue's contents follow:



Columns 1–2 list the SEP event number and identifier.

Columns 3–4 give the event date, start time at SoHO/ERNE >100 MeV, and background level of the analysed channel.

Columns 5–9 summarize SoHO/EPHIN >100 MeV results: background, peak flux, fluence, and end time.

Columns 10–17 provide Soft X-ray (SXR) flare details (start, peak, and end times; peak flux; fluence; position; and observing spacecraft).

Columns 18–26 list the corresponding Hard X-ray (HXR) parameters when available (onset, peak, and end times; magnitude; total counts; energy range; position; and observer).

Columns 27–47 describe radio emissions: type III (Cols 27–33), type II (Cols 34–40), and type IV (Cols 41–47), including the observing station or spacecraft, onset time, and frequency range (MHz).

Columns 48–54 contain γ-ray information (onset, peak, and end times; peak intensity; total counts; and observer).

Columns 55–58 list associated Coronal Mass Ejection (CME) data (first appearance, plane-of-sky speed, width, and identification source, e.g. SoHO/LASCO). 

Columns 59–62 summarize Ground LEvel Enhancement (GLE) characteristics (reference number, intensity, fluence, and station).

Column 63 provides comments and cross-references to other published SEP catalogues.
description: Detail structure of the catalogue

-  Columns 1 and 2: identification of the event    -  Column 1: Catalogue entry number    -  Column 2: Event identifier

-  Columns 3 and 4: SoHO/ERNE data information    -  Column 3: Time of onset (in UT)    -  Column 4: Background mean of the channel [counts]

-  Columns 5 to 9: SoHO/EPHIN data information    -  Column 5: Background of the of >100 MeV proton proxy channel [1/(cm^2.sr.s.MeV)]    -  Column 6: Peak flux of the event [1/(cm^2.sr.s.MeV)]    -  Column 7: Fluence of the event [1/(cm^2.sr.MeV)]    -  Column 8: End time (for the integration) (in DOY)    -  Column 9: Comments

-  Columns 10 to 17: soft X-rays flare information    -  Column 10: Time of onset (in UT)    -  Column 11: Time of peak flux (in UT)    -  Column 12: Time of end (in UT)    -  Column 13: Soft X-ray class (1-8 Angström soft X-ray peak intensity in terms of C, M and X nomenclature where these represent intensities of 10^6, 10^5, and 10^4 W/m^2 respectively)    -  Column 14: Fluence [J/m^2]    -  Column 15: X-ray location on the solar surface (in Stonyhurst heliographic coordinates, North (N) or South (S), and East (E) or West (W)) [degrees]    -  Column 16: Spacecraft observer    -  Column 17: Comments

-  Columns 18 to 26: hard X-ray flare information    -  Column 18: Time of onset (in UT)    -  Column 19: Time of peak flux (in UT)    -  Column 20: Time of end (in UT)    -  Column 21: Peak intensity [counts/s]    -  Column 22: Total counts [counts]    -  Column 23: Energy range [keV]    -  Column 24: Hard X-ray flare location on the solar surface (longitude, latitude in Carrington coordinates) [degrees]    -  Column 25: Spacecraft/instrument observer    -  Column 26: Comments

-  Columns 27 to 33: radio type III information    -  Column 27 to 29: Ground-based observations        -  Column 27: Ground-based station observer        -  Column 28: Onset time (in UT)        -  Column 29: Frequency range [MHz]    -  Column 30 to 32: Space-borne observations        -  Column 30: Spacecraft/instrument observer        -  Column 31: Onset time (in UT)        -  Column 32: Frequency range [kHz]    -  Column 33: Comments

-  Columns 34 to 40: radio type II information    -  Column 34 to 36: Ground-based observations        -  Column 34: Ground-based station observer        -  Column 35: Onset time (in UT)        -  Column 36: Frequency range [MHz]    -  Column 37 to 39: Space-borne observations        -  Column 37: Spacecraft/instrument observer        -  Column 38: Onset time (in UT)        -  Column 39: Frequency range [kHz]    -  Column 40: Comments

-  Columns 41 to 47: radio type IV information    -  Column 41 to 43: Ground-based observations        -  Column 41: Ground-based station observer        -  Column 42: Onset time (in UT)        -  Column 43: Frequency range [MHz]    -  Column 44 to 47: Space-borne observations        -  Column 44: Spacecraft/instrument observer        -  Column 45: Onset time (in UT)        -  Column 46: Duration [min]        -  Column 47: End frequency [MHz]

-  Columns 48 to 54: gamma-rays information    -  Column 48: Time of onset (in UT)    -  Column 49: Time of peak flux (in UT)    -  Column 50: Time of end (in UT)    -  Column 51: Peak intensity [counts/s]    -  Column 52: Total counts [counts]    -  Column 53: Spacecraft/instrument observer    -  Column 54: Comments

-  Columns 55 to 58: CME information    -  Column 55: Time of first appearance (in UT)    -  Column 56: Linear speed [km/s]    -  Column 57: Angular width [deg]    -  Column 58: Source of information

-  Column 59 and 63: GLE information    -  Column 59: GLE name    -  Column 60: Integral intensity [%.h]    -  Column 61: Omni-directional integral fluence [cm^(-2)]    -  Column 62: Name of observer

-  Column 63: General notes