! Swift/XRT hardness ratio of trigger: 755343, name: GRB 170531A
 ! T0 for this burst is Swift MET=517954072 s, = 2017 May 31 at 20:07:32.854 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
2430.858	36816.015	-2176.700	0.004287	0.001079
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
2430.858	36816.015	-2176.700	0.003938	0.001050
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
2430.858	36816.015	-2176.700	1.088559	0.399253