! Swift/XRT hardness ratio of trigger: 709357, name: GRB 160821B
 ! T0 for this burst is Swift MET=493511369.92 s, = 2016 Aug 21 at 22:29:13.175 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
637.517	5958.546	-365.136	0.022777	0.005810
17771.750	12393.606	-7155.689	0.005078	0.001094
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
637.517	5958.546	-365.136	0.106408	0.014509
17771.750	12393.606	-7155.689	0.003525	0.000949
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
637.517	5958.546	-365.136	0.214049	0.061915
17771.750	12393.606	-7155.689	1.440567	0.496675