! Swift/XRT hardness ratio of trigger: 380311, name: GRB 091221
 ! T0 for this burst is Swift MET=283121577.664 s, = 2009 Dec 21 at 20:52:52.296 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
232.300	3252.164	-56.209	0.384895	0.100586
3762.863	270.704	-278.400	0.045208	0.010320
4503.696	550.351	-470.129	0.043002	0.007367
5510.792	561.205	-456.745	0.027978	0.005959
11879.950	80922.669	-2642.223	0.004122	0.000882
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
232.300	3252.164	-56.209	0.784897	0.136946
3762.863	270.704	-278.400	0.034134	0.008953
4503.696	550.351	-470.129	0.018165	0.004807
5510.792	561.205	-456.745	0.028111	0.005968
11879.950	80922.669	-2642.223	0.002738	0.000786
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
232.300	3252.164	-56.209	0.490377	0.154088
3762.863	270.704	-278.400	1.324431	0.460518
4503.696	550.351	-470.129	2.367344	0.746311
5510.792	561.205	-456.745	0.995277	0.299288
11879.950	80922.669	-2642.223	1.505569	0.539095