! Swift/XRT hardness ratio of trigger: 1102329, name: GRB 220412B - source 12
 ! T0 for this burst is Swift MET=671476037.887999, = 2022 Apr 12 at 17:06:48.800 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
READ TERR 1 
READ SERR 2
NO	NO	NO	NO	NO
! WT -- hard data
!Time		Err (pos)	Err(neg)	Rate		Error
163.719	47.833	-75.053	0.174532	0.066352
NO	NO	NO	NO	NO
! WT -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
163.719	47.833	-75.053	0.382431	0.197434
NO	NO	NO	NO	NO
! WT -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
163.719	47.833	-75.053	0.456376	0.292599