! Swift/XRT hardness ratio of trigger: 755343, name: GRB 170531A ! T0 for this burst is Swift MET=517954072 s, = 2017 May 31 at 20:07:32.854 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 ! BINMODE: GRB-like (counts) READ TERR 1 READ SERR 2