! Swift/XRT hardness ratio of trigger: 21639, name: GRB 231222B - source 1
 ! 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
43853.974	4000.910	-676.014	0.029932	0.007808
54015.449	594.956	-493.217	0.023576	0.005999
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
43853.974	4000.910	-676.014	0.031560	0.007996
54015.449	594.956	-493.217	0.026097	0.006345
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
43853.974	4000.910	-676.014	0.948407	0.344865
54015.449	594.956	-493.217	0.903384	0.317924