! Swift/XRT hardness ratio of trigger: 21514, name: GRB 220921A ! T0 for this burst is Swift MET=685451188.956 s, = 2022 Sep 21 at 11:05:59.058 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 NO NO NO NO NO ! PC -- hard data !Time Err (pos) Err(neg) Rate Error 33631.250 237.052 -201.725 0.055750 0.013725 39779.628 881.560 -768.468 0.036274 0.008186 99453.015 21503.697 -55268.415 0.010182 0.002134 NO NO NO NO NO ! PC -- soft data !Time Err (pos) Err(neg) Rate Error 33631.250 237.052 -201.725 0.108807 0.019033 39779.628 881.560 -768.468 0.035787 0.008120 99453.015 21503.697 -55268.415 0.021156 0.003046 NO NO NO NO NO ! PC -- hardness ratio data !Time Err (pos) Err(neg) Rate Error 33631.250 237.052 -201.725 0.512377 0.154742 39779.628 881.560 -768.468 1.013608 0.324373 99453.015 21503.697 -55268.415 0.481278 0.122378