! Swift/XRT hardness ratio of trigger: 668641, name: GRB 151228B
 ! T0 for this burst is Swift MET=473035650.56 s, = 2015 Dec 28 at 22:47:14.941 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
333.189	181.742	-81.527	0.322237	0.072723
912.663	502.388	-397.732	0.061296	0.011865
5871.797	1286.676	-1185.029	0.018005	0.003529
11623.199	1281.946	-1220.339	0.014816	0.002911
20557.923	3833.118	-4319.515	0.009849	0.002026
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
333.189	181.742	-81.527	0.828776	0.120032
912.663	502.388	-397.732	0.121789	0.016649
5871.797	1286.676	-1185.029	0.040182	0.005430
11623.199	1281.946	-1220.339	0.027678	0.003958
20557.923	3833.118	-4319.515	0.015011	0.002477
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
333.189	181.742	-81.527	0.388810	0.104262
912.663	502.388	-397.732	0.503295	0.119271
5871.797	1286.676	-1185.029	0.448072	0.106677
11623.199	1281.946	-1220.339	0.535310	0.130079
20557.923	3833.118	-4319.515	0.656096	0.173030