IAPS S2 SEP events Catalogue

The catalogue contains SEP events observed at the Earth of class S2, i.e. with flux >100 pfu, at >10 MeV from 1995 and their properties (onset, peak flux, fluence) as well as features of the associated flare (peak time, class, location), CME (lift off, position, angle width, speed) and radio burst (occurrence of type II or IV). The SEP events having flux in the interval [10, 100) pfu at > 10 MeV are listed in the companion table S1 SEP Catalogue.

References

Dataset summary

internal_name:	inaf_s2sep_tableset
publisher:	INAF - Istituto di Astrofisica e Planetologia Spaziali
alph_code:	16B
id_tmp:	78
short_name:	IAPS-S2 SEP events
identifier:	aspis://inaf/s1sep_tableset
dynamic:	static
size:	100kB
format:	csv
type:	tableset
records_number:	60
time_start:	1995-01-01
time_stop:	2014-09-10
spatial:	Earth
messenger:	Protons,Photons
spectral_min:
spectral_max:
spectral_units:
observable:	{flare,CME,SEP}
latest update:	2024-03-28 05:08:06

Columns specification

progr	column	units	type	description
1	time	utc	datetime	UTC - Time of the peak of the SEP associated soft X -ray (SXR) flare. When the time coincides with that of the CME no information about the actual time was available.
2	SXR_class	char	char	Char - Class of the SEP associated flare according to their peak intensities
3	Flare_Latitude	deg	float	Degrees - Averaged heliographic latitude of the SEP associated flare central region from observations of the H-alpha spectral line
4	Flare_Longitude	deg	float	Degrees - Averaged heliographic longitude of the SEP associated flare central region from observations of the H-alpha spectral line. The value 91 indicates longitudes >90 the value 121 indicates longitudes >120 the value -91 indicates longitudes<-90.
5	CME_NOAA_date	utc	datetime	UTC - Date and time of the associated CME from the NOAA list (https://umbra.nascom.nasa.gov/SEP/)
6	CME_SOHO_date	utc	datetime	UTC - In case the CME NOAA Date was not present or not considered reliable in the previous column, the date and time of the associated CME from the SOHO list (https://cdaw.gsfc.nasa.gov/CME_list/UNIVERSAL_ver1/1998_05/univ1998_05.html) is given in this c
7	CME_central_PA	deg	float	Degrees - CME position angle measured from Solar North in degrees (counter-clockwise). The value 360 indicates a halo CME.
8	Halo_CME_type	char	char	Char - Halo CMEs are indicated in the ‘CME_Central_PA’ column with 360. In this column the letters (‘S’, ‘BA’, ‘OA’) in the brackets show type of halo CMEs. Halo CMEs can be symmetric (S) or asymmetric with respect to the occulting disk. Brightness asymme
9	CME_angular_width	deg	float	Degrees - Angular width of the CME. For values =-361 more information are available in the sOHO LASCO CME catalogue (https://cdaw.gsfc.nasa.gov/CME_list/).
10	CME_Speed_Art1	km/s	float	km/s - CME speed from catalogue of article 1 (Art1) Papaioannou et a. 2016 (doi: 10.1051/swsc/2016035)
11	Radio_burst_type_II	char	int	Int - Occurrence of type II radio burst: the value 1 indicates that the burst occurred the value 2 indicates that the burst occurred with a probability >50% the value 3 indicates that the burst occurred with a probability <50 the value 0 indicates that th
12	Radio_burst_type_IV	char	int	Int - Occurrence of type IV radio burst: the value 1 indicates that the burst occurred the value 2 indicates that the burst occurred with a probability >50% the value 3 indicates that the burst occurred with a probability <50 the value 0 indicates that th
13	CME_Speed_Art2	km/s	float	km/s - CME speed from catalogue of article2 (ART2) Gopalswamy et al. 2015 (doi: 10.48550/arXiv.1509.04216)
14	SOHO_CME_linear_speed	km/s	float	km/s - Speed from SOHO catalogue obtained through linear fit of height-time measurements
15	SOHO_CME_speed_2nd	km/s	float	km/s - Speed from SOHO catalogue obtained through quadratic fit of height-time measurements. The speed is evaluated at the time of final height measurement
16	SOHO_CME_speed_20_Rs	km/s	float	km/s - Speed from SOHO catalogue obtained through quadratic fit of height-time measurements. The speed is evaluated when the CME is at a height of 20 solar radii
17	CME_acceleration	km/s^2	float	km/s^2 - Acceleration of the CME
18	SXR_Fluence	J/m^2	float	J m^2 - Time integrated SXR intensity between the 1/3 power points on rise and fall (see Laurenza et al., 2009, doi: 10.1029/2007SW000379)
19	Radio_Fluence	sfu*min	float	sfu*min - Time integrated 1 MHz intensity from Wind/Waves from 10 minutes before the onset of integration for the SXR burst to 10 minutes after the SXR burst peak (see Laurenza et al., 2009, doi: 10.1029/2007SW000379)
20	Frequency	kHz	float	kHz - Used Wind/Waves frequency close to 1 MHz in computing the Radio_Fluence in the previous column
21	SEP_onset	utc	datetime	UTC - SEP onset time
22	SEP_threshold	utc	datetime	UTC - Time at which the >10 MeV proton flux exceeds the 10 pfu threshold
23	SEP_Peak_time	utc	datetime	UTC - Peak proton flux time at >10 MeV energies
24	SEP_end	utc	datetime	UTC - Time at the end of the SEP event at >10 MeV energies
25	Peak_proton_flux	pfu	float	pfu=1/(cm^2 s sr) - Peak proton flux at >10 MeV energies
26	Proton_fluence	#/(cm^2*sr)	float	#/(cm^2 sr) - Time integrated proton flux in the onset-end time interval
27	GLE	char	char	Char - YES or NO flag indicating the presence or the absence of a Ground Level Enhancement event, respectively.