! Swift/XRT hardness ratio of trigger: 1107466, name: GRB 220521A ! T0 for this burst is Swift MET=674868050.624 s, = 2022 May 21 at 23:20:21.444 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 160.744 41.869 -55.916 0.411436 0.092737 249.619 48.271 -47.006 0.420433 0.094613 335.967 52.186 -38.077 0.442104 0.099809 428.604 42.291 -40.450 0.489871 0.110064 510.028 36.084 -39.134 0.610058 0.128808 4248.437 798.896 -474.813 0.042416 0.009135 NO NO NO NO NO ! PC -- soft data !Time Err (pos) Err(neg) Rate Error 160.744 41.869 -55.916 0.433465 0.095457 249.619 48.271 -47.006 0.466860 0.100114 335.967 52.186 -38.077 0.600414 0.116097 428.604 42.291 -40.450 0.634840 0.124961 510.028 36.084 -39.134 0.613758 0.129048 4248.437 798.896 -474.813 0.057757 0.010636 NO NO NO NO NO ! PC -- hardness ratio data !Time Err (pos) Err(neg) Rate Error 160.744 41.869 -55.916 0.949179 0.299105 249.619 48.271 -47.006 0.900555 0.279936 335.967 52.186 -38.077 0.736331 0.218873 428.604 42.291 -40.450 0.771645 0.230496 510.028 36.084 -39.134 0.993971 0.296179 4248.437 798.896 -474.813 0.734393 0.208097