! Swift/XRT hardness ratio of trigger: 522586, name: GRB 120521B ! T0 for this burst is Swift MET=359284077.056 s, = 2012 May 21 at 09:07:48.825 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 556.924 1347.343 -407.769 0.200910 0.013879 8052.003 5535.847 -2676.393 0.024531 0.002625 NO NO NO NO NO ! PC -- soft data !Time Err (pos) Err(neg) Rate Error 556.924 1347.343 -407.769 0.017337 0.003918 8052.003 5535.847 -2676.393 0.005059 0.001207 NO NO NO NO NO ! PC -- hardness ratio data !Time Err (pos) Err(neg) Rate Error 556.924 1347.343 -407.769 11.588820 2.738916 8052.003 5535.847 -2676.393 4.849009 1.268074