! Swift/XRT hardness ratio of trigger: 21481, name: GRB 220219B ! T0 for this burst is Swift MET=666955673.786 s, = 2022 Feb 19 at 09:27:25.141 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 NO NO NO NO NO ! PC -- hard data !Time Err (pos) Err(neg) Rate Error 339117.606 18185.770 -16586.342 0.011696 0.002550 535186.111 183917.149 -166971.266 0.005657 0.001409 NO NO NO NO NO ! PC -- soft data !Time Err (pos) Err(neg) Rate Error 339117.606 18185.770 -16586.342 0.015645 0.002948 535186.111 183917.149 -166971.266 0.004963 0.001322 NO NO NO NO NO ! PC -- hardness ratio data !Time Err (pos) Err(neg) Rate Error 339117.606 18185.770 -16586.342 0.747584 0.215435 535186.111 183917.149 -166971.266 1.139671 0.415573