! Swift/XRT hardness ratio of trigger: 1069551, name: GRB 210820A
 ! T0 for this burst is Swift MET=651173908.288 s, = 2021 Aug 20 at 17:38:00.705 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
547.953	82.315	-75.646	0.437430	0.098527
809.516	342.271	-179.249	0.101402	0.022989
1481.793	379.563	-330.005	0.039233	0.008396
6817.415	821.910	-898.098	0.016732	0.003721
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
547.953	82.315	-75.646	1.870084	0.203235
809.516	342.271	-179.249	0.358744	0.045842
1481.793	379.563	-330.005	0.063679	0.010613
6817.415	821.910	-898.098	0.028203	0.004815
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
547.953	82.315	-75.646	0.233909	0.058498
809.516	342.271	-179.249	0.282659	0.073560
1481.793	379.563	-330.005	0.616116	0.167117
6817.415	821.910	-898.098	0.593280	0.166325