! Swift/XRT hardness ratio of trigger: 21481, name: GRB 220219B - source 1
 ! T0 for this burst is Swift MET=666955673.786, = 2022 Feb 19 at 09:27:25.000 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
! PC -- hard data
!Time		Err (pos)	Err(neg)	Rate		Error
344347.523	12955.853	-16476.047	0.013642	0.003610
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
344347.523	12955.853	-16476.047	0.018246	0.004138
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
344347.523	12955.853	-16476.047	0.747670	0.260567