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Table 2.

Set of cuts for removing events produced by charged particles and during solar flares.

Parameter Expression
Number of pixels > 70 + 30 × E/(1keV)
Energy fraction < 0.8 × (1−exp(−(E/(1keV)+0.25)/1.1)) + 0.004 × E/(1keV) or > 1
Border pixels > 2
Photon energy > 4 keV
Radial distance > 5′
Count rates > 3σ above the mean count rate
Time intervals Flare 1 (DU 2), Flare 2 (DU 2 & DU 3), Flare 3 (DU 2 & DU 3), Flare 4 (DU 2 & DU 3)

Notes. The polarization analysis does not use the events satisfying either of these expressions.

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