! Swift/XRT hardness ratio of trigger: 1037335, name: GRB 210318B
 ! T0 for this burst is Swift MET=637729739.584 s, = 2021 Mar 18 at 03:08:32.897 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
700.279	47.640	-45.131	3.606317	0.388743
839.628	108.876	-91.709	2.920815	0.237165
1027.634	76.324	-79.130	2.261748	0.237233
1200.641	98.888	-96.683	2.038830	0.201049
1397.404	100.197	-97.875	1.560374	0.174690
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
700.279	47.640	-45.131	0.828838	0.186367
839.628	108.876	-91.709	0.371641	0.085348
1027.634	76.324	-79.130	0.512620	0.113662
1200.641	98.888	-96.683	0.385973	0.087889
1397.404	100.197	-97.875	0.423271	0.091393
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
700.279	47.640	-45.131	4.351053	1.084963
839.628	108.876	-91.709	7.859243	1.914380
1027.634	76.324	-79.130	4.412137	1.082236
1200.641	98.888	-96.683	5.282317	1.310768
1397.404	100.197	-97.875	3.686462	0.896616