! Swift/XRT hardness ratio of trigger: 1069169, name: GRB 210818A ! T0 for this burst is Swift MET=650941355.52 s, = 2021 Aug 18 at 01:02:07.953 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 276.731 24.193 -20.939 5.579415 0.978270 314.712 16.300 -13.788 6.618095 1.308506 355.527 23.124 -24.516 8.529063 1.174472 411.948 26.879 -33.297 4.544938 0.764191 461.407 22.552 -22.580 3.862238 0.813708 503.360 20.715 -19.402 4.379133 0.916256 557.365 39.423 -33.289 3.961316 0.645740 638.030 41.499 -41.242 2.556118 0.488105 713.982 45.782 -34.453 1.883164 0.425001 796.803 45.702 -37.039 2.022758 0.434370 898.200 57.135 -55.695 1.406188 0.310354 1020.171 73.066 -64.837 1.533841 0.292896 1157.692 68.433 -64.455 1.148949 0.257931 1297.068 59.437 -70.943 1.165533 0.262694 1415.194 61.664 -58.688 1.256428 0.283933 1602.121 193.154 -125.264 0.760016 0.136144 13762.338 3839.940 -2791.949 0.027293 0.005538 NO NO NO NO NO ! PC -- soft data !Time Err (pos) Err(neg) Rate Error 276.731 24.193 -20.939 3.392049 0.762497 314.712 16.300 -13.788 5.349336 1.173199 355.527 23.124 -24.516 4.171135 0.821351 411.948 26.879 -33.297 3.931132 0.710878 461.407 22.552 -22.580 3.367263 0.756925 503.360 20.715 -19.402 3.799190 0.854018 557.365 39.423 -33.289 2.081277 0.469090 638.030 41.499 -41.242 1.834749 0.412978 713.982 45.782 -34.453 1.965790 0.433862 796.803 45.702 -37.039 2.016721 0.434644 898.200 57.135 -55.695 1.958663 0.366039 1020.171 73.066 -64.837 1.094348 0.247965 1157.692 68.433 -64.455 1.370134 0.282152 1297.068 59.437 -70.943 1.398744 0.286775 1415.194 61.664 -58.688 1.258801 0.284470 1602.121 193.154 -125.264 0.858046 0.144592 13762.338 3839.940 -2791.949 0.029506 0.005767 NO NO NO NO NO ! PC -- hardness ratio data !Time Err (pos) Err(neg) Rate Error 276.731 24.193 -20.939 1.644851 0.468921 314.712 16.300 -13.788 1.237181 0.365318 355.527 23.124 -24.516 2.044782 0.491330 411.948 26.879 -33.297 1.156140 0.285480 461.407 22.552 -22.580 1.146996 0.353375 503.360 20.715 -19.402 1.152649 0.353975 557.365 39.423 -33.289 1.903310 0.529419 638.030 41.499 -41.242 1.393170 0.411229 713.982 45.782 -34.453 0.957968 0.302398 796.803 45.702 -37.039 1.002993 0.305152 898.200 57.135 -55.695 0.717932 0.207625 1020.171 73.066 -64.837 1.401603 0.415323 1157.692 68.433 -64.455 0.838567 0.255459 1297.068 59.437 -70.943 0.833271 0.253885 1415.194 61.664 -58.688 0.998115 0.318988 1602.121 193.154 -125.264 0.885752 0.217840 13762.338 3839.940 -2791.949 0.924988 0.260613