! Swift/XRT hardness ratio of trigger: 1044426, name: GRB 210421A ! T0 for this burst is Swift MET=640657677.184 s, = 2021 Apr 21 at 00:27:30.303 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 ! WTST -- hard data !Time Err (pos) Err(neg) Rate Error 82.1493160589128 1.1980659073042 -1.16099906291821 175.560552688362 19.9206082910589 85.1891227431919 1.85976927798727 -1.84174077697493 156.93749615005 14.2584981404487 NO NO NO NO NO ! WTST -- soft data !Time Err (pos) Err(neg) Rate Error 82.1493160589128 1.1980659073042 -1.16099906291821 111.705028613585 16.0795301705692 85.1891227431919 1.85976927798727 -1.84174077697493 126.013206252053 13.0063552424359 NO NO NO NO NO ! WTST -- hardness ratio data !Time Err (pos) Err(neg) Rate Error 82.1493160589128 1.1980659073042 -1.16099906291821 1.66666666666667 0.295204961846698 85.1891227431919 1.85976927798727 -1.84174077697493 1.30927835051546 0.176550222101714 NO NO NO NO NO ! WT -- hard data !Time Err (pos) Err(neg) Rate Error 92.410 0.749 -0.779 160.947322 19.105355 94.333 1.121 -1.174 116.811383 13.010212 96.400 1.042 -0.945 129.465608 15.015397 98.449 0.904 -1.007 104.084781 13.950068 100.720 1.504 -1.368 127.279061 12.229975 103.113 0.838 -0.889 101.280880 13.894801 105.053 1.258 -1.102 85.023499 11.138157 107.506 1.161 -1.195 89.311463 11.141675 109.860 1.341 -1.194 79.826327 10.166046 112.269 0.852 -1.068 73.856678 11.294047 114.470 1.430 -1.349 70.520899 9.232753 116.950 0.808 -1.050 36.654871 5.468155 118.440 0.645 -0.683 58.582476 7.053424 119.806 0.825 -0.722 48.365129 5.985056 121.210 0.562 -0.579 43.549444 6.791614 122.587 0.817 -0.816 35.187223 4.927851 123.975 0.654 -0.570 41.427463 6.176507 125.589 0.868 -0.961 27.725344 4.133556 127.219 0.729 -0.762 34.096657 5.083524 128.638 0.711 -0.689 36.704902 5.576825 130.174 0.900 -0.826 29.779730 4.524646 132.089 0.885 -1.015 26.655708 4.128051 134.134 1.203 -1.160 22.066751 3.289838 136.371 1.217 -1.034 23.165549 3.453635 139.013 1.250 -1.425 19.471182 2.902872 141.449 1.309 -1.186 20.880895 3.113009 144.325 1.731 -1.567 15.790197 2.354077 148.060 2.327 -2.004 11.743625 1.784229 152.336 1.787 -1.949 13.323148 2.024156 156.225 2.166 -2.102 11.831394 1.763817 161.568 3.217 -3.177 7.958549 1.209108 168.865 4.417 -4.080 6.047990 0.901615 175.862 3.002 -2.579 5.886521 1.105767 184.573 6.060 -5.709 3.422340 0.570402 198.548 7.449 -7.916 2.224910 0.406218 NO NO NO NO NO ! WT -- soft data !Time Err (pos) Err(neg) Rate Error 92.410 0.749 -0.779 134.935376 17.555120 94.333 1.121 -1.174 91.450123 11.446312 96.400 1.042 -0.945 104.691447 13.478033 98.449 0.904 -1.007 110.801904 13.735054 100.720 1.504 -1.368 72.412921 9.144756 103.113 0.838 -0.889 87.961447 12.807780 105.053 1.258 -1.102 90.833465 11.575680 107.506 1.161 -1.195 87.442342 10.937704 109.860 1.341 -1.194 102.554028 11.438122 112.269 0.852 -1.068 100.572237 13.103416 114.470 1.430 -1.349 87.200342 10.133224 116.950 0.808 -1.050 76.512660 8.317774 118.440 0.645 -0.683 56.884433 6.950424 119.806 0.825 -0.722 66.586410 7.007897 121.210 0.562 -0.579 46.440541 6.774669 122.587 0.817 -0.816 59.829353 6.503959 123.975 0.654 -0.570 62.601500 7.593089 125.589 0.868 -0.961 54.218450 5.781064 127.219 0.729 -0.762 54.652575 6.442257 128.638 0.711 -0.689 51.303095 6.516550 130.174 0.900 -0.826 46.563464 5.634448 132.089 0.885 -1.015 45.776153 5.394321 134.134 1.203 -1.160 41.227593 4.580912 136.371 1.217 -1.034 36.550088 4.338335 139.013 1.250 -1.425 37.797757 4.069117 141.449 1.309 -1.186 32.647522 3.921760 144.325 1.731 -1.567 27.620931 3.155100 148.060 2.327 -2.004 28.079525 2.767248 152.336 1.787 -1.949 26.130873 2.801832 156.225 2.166 -2.102 25.691490 2.627188 161.568 3.217 -3.177 18.057523 1.818226 168.865 4.417 -4.080 15.707981 1.467184 175.862 3.002 -2.579 10.097190 1.437735 184.573 6.060 -5.709 8.528978 0.911019 198.548 7.449 -7.916 5.574548 0.656811 NO NO NO NO NO ! WT -- hardness ratio data !Time Err (pos) Err(neg) Rate Error 92.410 0.749 -0.779 1.192773 0.203538 94.333 1.121 -1.174 1.277323 0.211069 96.400 1.042 -0.945 1.236640 0.207047 98.449 0.904 -1.007 0.939377 0.169177 100.720 1.504 -1.368 1.757684 0.275291 103.113 0.838 -0.889 1.151424 0.225692 105.053 1.258 -1.102 0.936037 0.166840 107.506 1.161 -1.195 1.021375 0.178091 109.860 1.341 -1.194 0.778383 0.130615 112.269 0.852 -1.068 0.734364 0.144921 114.470 1.430 -1.349 0.808723 0.139540 116.950 0.808 -1.050 0.479069 0.088319 118.440 0.645 -0.683 1.029851 0.176637 119.806 0.825 -0.722 0.726351 0.117977 121.210 0.562 -0.579 0.937746 0.200234 122.587 0.817 -0.816 0.588126 0.104250 123.975 0.654 -0.570 0.661765 0.127169 125.589 0.868 -0.961 0.511364 0.093715 127.219 0.729 -0.762 0.623880 0.118555 128.638 0.711 -0.689 0.715452 0.141668 130.174 0.900 -0.826 0.639551 0.124206 132.089 0.885 -1.015 0.582306 0.113302 134.134 1.203 -1.160 0.535242 0.099509 136.371 1.217 -1.034 0.633803 0.120767 139.013 1.250 -1.425 0.515141 0.094718 141.449 1.309 -1.186 0.639586 0.122441 144.325 1.731 -1.567 0.571675 0.107357 148.060 2.327 -2.004 0.418227 0.075730 152.336 1.787 -1.949 0.509862 0.094804 156.225 2.166 -2.102 0.460518 0.083247 161.568 3.217 -3.177 0.440733 0.080325 168.865 4.417 -4.080 0.385027 0.067731 175.862 3.002 -2.579 0.582986 0.137415 184.573 6.060 -5.709 0.401260 0.079431 198.548 7.449 -7.916 0.399119 0.086724 NO NO NO NO NO ! PC -- hard data !Time Err (pos) Err(neg) Rate Error 242.054 26.491 -18.641 0.927785 0.208022 339.271 142.395 -70.725 0.469070 0.067973 1765.168 3387.334 -232.657 0.073394 0.015075 5562.044 377.751 -409.542 0.036834 0.007942 11679.412 931.508 -785.992 0.015382 0.003499 17720.176 979.811 -752.733 0.015622 0.003461 38243.540 36089.318 -15849.722 0.008192 0.001992 NO NO NO NO NO ! PC -- soft data !Time Err (pos) Err(neg) Rate Error 242.054 26.491 -18.641 1.345435 0.250543 339.271 142.395 -70.725 0.370289 0.060413 1765.168 3387.334 -232.657 0.057836 0.013433 5562.044 377.751 -409.542 0.026609 0.006756 11679.412 931.508 -785.992 0.020357 0.004047 17720.176 979.811 -752.733 0.022545 0.004149 38243.540 36089.318 -15849.722 0.006639 0.001807 NO NO NO NO NO ! PC -- hardness ratio data !Time Err (pos) Err(neg) Rate Error 242.054 26.491 -18.641 0.689580 0.200985 339.271 142.395 -70.725 1.266766 0.276426 1765.168 3387.334 -232.657 1.269002 0.393455 5562.044 377.751 -409.542 1.384281 0.461107 11679.412 931.508 -785.992 0.755608 0.228291 17720.176 979.811 -752.733 0.692905 0.199560 38243.540 36089.318 -15849.722 1.234014 0.450341