! Swift/XRT hardness ratio of trigger: 813721, name: GRB 180311A ! T0 for this burst is Swift MET=542484249.856 s, = 2018 Mar 11 at 18:03:49.248 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 332.152 55.477 -47.323 0.678997 0.152799 640.027 386.966 -252.398 0.089088 0.020373 1277.883 340.832 -250.891 0.051892 0.010427 7604.181 4774.284 -4838.697 0.009288 0.002493 13240.607 1093.549 -862.143 0.012558 0.003009 18959.770 1109.659 -1417.699 0.014422 0.002773 NO NO NO NO NO ! PC -- soft data !Time Err (pos) Err(neg) Rate Error 332.152 55.477 -47.323 1.188098 0.201434 640.027 386.966 -252.398 0.248642 0.035752 1277.883 340.832 -250.891 0.081030 0.012942 7604.181 4774.284 -4838.697 0.037649 0.005008 13240.607 1093.549 -862.143 0.020460 0.003870 18959.770 1109.659 -1417.699 0.025289 0.003682 NO NO NO NO NO ! PC -- hardness ratio data !Time Err (pos) Err(neg) Rate Error 332.152 55.477 -47.323 0.571499 0.161023 640.027 386.966 -252.398 0.358297 0.096789 1277.883 340.832 -250.891 0.640399 0.164380 7604.181 4774.284 -4838.697 0.246699 0.073900 13240.607 1093.549 -862.143 0.613759 0.187382 18959.770 1109.659 -1417.699 0.570271 0.137545