! Swift/XRT hardness ratio of trigger: 21639, name: GRB 231222B
 ! T0 for this burst is Swift MET=724922794.594 s, = 2023 Dec 22 at 07:26:29.594 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
45527.674	8150.011	-2349.714	0.026580	0.006953
54256.974	498.849	-579.289	0.025465	0.006276
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
45527.674	8150.011	-2349.714	0.036900	0.008157
54256.974	498.849	-579.289	0.023452	0.006068
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
45527.674	8150.011	-2349.714	0.720313	0.246690
54256.974	498.849	-579.289	1.085837	0.388020