! Swift/XRT hardness ratio of trigger: 21535, name: GRB 230204B ! T0 for this burst is Swift MET=697239895.841 s, = 2023 Feb 04 at 21:44:25.141 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