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Table 2

Energetic particle instruments, energy channels, and corresponding mean energies used to determine the electron-to-proton ratios.

(1) (2) (3) (4) (5)
25–40 MeV protons 1 MeV electrons
Spacecraft/Instrument Energy channels (CH) Mean energy 〈E Energy channel(s) used (CH) Mean energy 〈E〉 of determined peak int.
SOHO/ERNE/HED CH 3–4:
25–40 MeV 31.6 MeV
SOHO/EPHIN E5: 0.45–0.5 MeV } 0.99 MeV(a)
E15: 0.7–1.1 MeV
STEREO/HET CH 5–8: CH 0:
26.3–40.5 MeV 32.6 MeV 0.7–1.4 MeV 0.99 MeV
SolO/EPD/HET CH 19–24: CH 0–1: }0.99MeV$\} 0.99{\rm{MeV}}$(b)
25.09–41.18 MeV 32.1 MeV 0.45–2.4 MeV
SolO/EPD/EPT CH 31–33:
0.37–0.47 MeV
Parker/EPI-Hi/HET CH 8–9: CH 3–4:
26.91–38.05 MeV 32.0 MeV 0.71–1.41 MeV 1.00 MeV
BepiColombo/SIXS CH 8–9: CH 5:
25.1–37.3 MeV(c) 35 MeV 0.96 MeV(c) 0.96 MeV

Notes. (a)Correction and new data product used (see text). (b)Interpolation used. (c)Only effective energies available.

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