! 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	0.384902	0.100588
3762.863	270.704	-278.400	0.045683	0.010428
4503.696	550.351	-470.129	0.043180	0.007398
5510.792	561.205	-456.745	0.028223	0.006011
11879.950	80922.669	-2642.223	0.004114	0.000880
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	0.034280	0.008991
4503.696	550.351	-470.129	0.018275	0.004836
5510.792	561.205	-456.745	0.028389	0.006027
11879.950	80922.669	-2642.223	0.002732	0.000785
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
232.300	3252.164	-56.209	0.490385	0.154091
3762.863	270.704	-278.400	1.332660	0.463379
4503.696	550.351	-470.129	2.362812	0.744884
5510.792	561.205	-456.745	0.994154	0.298951
11879.950	80922.669	-2642.223	1.505524	0.539198