! Swift/XRT hardness ratio of trigger: 668543, name: GRB 151228A ! T0 for this burst is Swift MET=472964728.0, = 2015 Dec 28 at 03:05:12.385 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