! Swift/XRT hardness ratio of trigger: 21512, name: GRB 220831A - source 2 ! T0 for this burst is Swift MET=683647022.992, = 2022 Aug 31 at 13:56:33.000 UT ! The hard band is 1.51-10 keV ! The soft band is 0.3-1.5 keV ! For details of light-curve production, see Evans et al. 2007, A&A, 469, 379 ! There are 3 datasets: Hard, Soft, and the ratio ! Columns are as labelled READ TERR 1 READ SERR 2 READ TERR 1 2 ! PC data !Time T_+ve T_-ve Rate Ratepos Rateneg 124883.376 794.021 -206.392 2.019987e-02 6.100622e-03 -5.100423e-03