! Swift/XRT hardness ratio of trigger: 279817, name: GRB 070520A ! T0 for this burst is Swift MET=201359112 s, = 2007 May 20 at 13:05:10.033 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 6916.605 4882.676 -3351.567 0.005530 0.001247 34023.108 24002.348 -18879.621 0.001878 0.000506 137714.711 81392.141 -76226.351 0.000661 0.000192 379359.071 1322946.975 -155921.982 0.000132 0.000050 NO NO NO NO NO ! PC -- soft data !Time Err (pos) Err(neg) Rate Error 6916.605 4882.676 -3351.567 0.013345 0.001972 34023.108 24002.348 -18879.621 0.004986 0.000830 137714.711 81392.141 -76226.351 0.001573 0.000270 379359.071 1322946.975 -155921.982 0.000321 0.000073 NO NO NO NO NO ! PC -- hardness ratio data !Time Err (pos) Err(neg) Rate Error 6916.605 4882.676 -3351.567 0.414397 0.111698 34023.108 24002.348 -18879.621 0.376605 0.119328 137714.711 81392.141 -76226.351 0.420232 0.141597 379359.071 1322946.975 -155921.982 0.411624 0.180969