! 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
339117.606	18185.770	-16586.342	0.011469	0.002564
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
339117.606	18185.770	-16586.342	0.016383	0.003038
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
339117.606	18185.770	-16586.342	0.700077	0.203326