! Swift/XRT hardness ratio of trigger: 744791, name: GRB 170331A
 ! T0 for this burst is Swift MET=512617265.28 s, = 2017 Mar 31 at 01:40:46.445 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
202.030	118.366	-59.654	0.427794	0.096336
469.878	224.107	-149.483	0.106789	0.018733
874.334	205.778	-180.349	0.049413	0.012584
1528.844	499.022	-448.732	0.041822	0.007355
7399.521	5569.006	-1856.130	0.007420	0.001722
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
202.030	118.366	-59.654	0.407333	0.091811
469.878	224.107	-149.483	0.064501	0.014576
874.334	205.778	-180.349	0.061979	0.014036
1528.844	499.022	-448.732	0.029707	0.006272
7399.521	5569.006	-1856.130	0.011576	0.002139
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
202.030	118.366	-59.654	1.050232	0.334619
469.878	224.107	-149.483	1.655611	0.473626
874.334	205.778	-180.349	0.797251	0.271704
1528.844	499.022	-448.732	1.407839	0.386862
7399.521	5569.006	-1856.130	0.641005	0.190177