! Swift/XRT hardness ratio of trigger: 375409, name: GRB 091109B
 ! T0 for this burst is Swift MET=279496148.2, = 2009 Nov 09 at 21:49:02.914 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
303.705371	968.920012	-217.032888	0.033029	0.006216
7548.866958	5284.950965	-2957.029987	0.004488	0.001210
66678.466067	164970.393885	-50607.180195	0.000919	0.000251
NO NO NO NO NO
! PC -- soft data
!TIME		Err (pos)	Err(neg)	Rate		Error
303.705371	968.920012	-217.032888	0.021588	0.005029
7548.866958	5284.950965	-2957.029987	0.007747	0.001568
66678.466067	164970.393885	-50607.180195	0.001135	0.000293
NO NO NO NO NO
! PC -- hardness ratio
!TIME		Err (pos)	Err(neg)	Rate		Error
303.705371	968.920012	-217.032888	1.529970	0.458205
7548.866958	5284.950965	-2957.029987	0.579322	0.195336
66678.466067	164970.393885	-50607.180195	0.809831	0.304554