! Swift/XRT hardness ratio of trigger: 21639, name: GRB 231222B
 ! T0 for this burst is Swift MET=724922794.594 s, = 2023 Dec 22 at 07:26:02.002 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
45381.829	8283.319	-2203.870	0.026604	0.006959
54255.976	499.847	-590.828	0.026522	0.006344
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
45381.829	8283.319	-2203.870	0.035390	0.007821
54255.976	499.847	-590.828	0.021599	0.005786
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
45381.829	8283.319	-2203.870	0.751740	0.257430
54255.976	499.847	-590.828	1.227927	0.440966