! Swift/XRT hardness ratio of trigger: 522578, name: GRB 120521A
 ! T0 for this burst is Swift MET=359272791.2, = 2012 May 21 at 05:59:49.168 UT
 ! The hard band is 1.5-10 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
READ TERR 1 
READ SERR 2
! PC -- hard data
!TIME		Err (pos)	Err(neg)	Rate		Error
118.910389	37.137463	-35.574686	1.023572	0.173377
189.176911	39.583160	-33.129060	0.728574	0.146571
280.886542	311.432730	-52.126470	0.173072	0.031608
NO NO NO NO NO
! PC -- soft data
!TIME		Err (pos)	Err(neg)	Rate		Error
118.910389	37.137463	-35.574686	0.585889	0.131009
189.176911	39.583160	-33.129060	0.581758	0.131042
280.886542	311.432730	-52.126470	0.109993	0.024343
NO NO NO NO NO
! PC -- hardness ratio
!TIME		Err (pos)	Err(neg)	Rate		Error
118.910389	37.137463	-35.574686	1.747039	0.490078
189.176911	39.583160	-33.129060	1.252365	0.378228
280.886542	311.432730	-52.126470	1.573477	0.451489