! Swift/XRT hardness ratio of trigger: 361831, name: GRB 090904B
 ! T0 for this burst is Swift MET=273720263.168 s, = 2009 Sep 04 at 01:24:18.113 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
267.882	111.473	-109.171	2.976495	0.245726
532.974	187.375	-153.619	1.706720	0.149908
964.496	387.690	-244.146	0.854516	0.078217
35262.134	7636.699	-6449.024	0.012347	0.001511
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
267.882	111.473	-109.171	0.400944	0.090496
532.974	187.375	-153.619	0.258333	0.058622
964.496	387.690	-244.146	0.158001	0.033966
35262.134	7636.699	-6449.024	0.002449	0.000686
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
267.882	111.473	-109.171	7.423714	1.784155
532.974	187.375	-153.619	6.606664	1.607608
964.496	387.690	-244.146	5.408293	1.263654
35262.134	7636.699	-6449.024	5.041639	1.542019