! Swift/XRT hardness ratio of trigger: 1056426, name: GRB 210618A ! T0 for this burst is Swift MET=645673444.224 s, = 2021 Jun 18 at 01:43:37.008 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: READ TERR 1 READ SERR 2 NO NO NO NO NO ! PC -- hard data !Time Err (pos) Err(neg) Rate Error 4285.309 552.860 -552.860 0.007920 0.003143 !::ObsID=01056426000 24690.277 15350.732 -15350.732 0.000703 0.000456 !::ObsID=01056426001 404457.509 20395.967 -20395.967 -0.000068 0.000008 !::ObsID=01056426002 NO NO NO NO NO ! PC -- soft data !Time Err (pos) Err(neg) Rate Error 4285.309 552.860 -552.860 0.001908 0.001687 !::ObsID=01056426000 24690.277 15350.732 -15350.732 0.001060 0.000509 !::ObsID=01056426001 404457.509 20395.967 -20395.967 0.000392 0.000451 !::ObsID=01056426002 NO NO NO NO NO ! PC -- hardness ratio data !Time Err (pos) Err(neg) Rate Error 4285.309 552.860 -552.860 4.150177 4.021471 !::ObsID=01056426000 24690.277 15350.732 -15350.732 0.663287 0.535343 !::ObsID=01056426001 404457.509 20395.967 -20395.967 -0.174711 -0.202104 !::ObsID=01056426002