! Swift/XRT hardness ratio of trigger: 854578, name: GRB 180821A
 ! T0 for this burst is Swift MET=556562456 s, = 2018 Aug 21 at 16:40:34.535 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
609.441	3461.176	-219.460	0.099489	0.026022
4422.357	330.250	-351.740	0.029997	0.007596
5499.084	818.072	-746.476	0.023729	0.004479
17258.598	11483.998	-7407.395	0.015247	0.003869
36809.363	3930.236	-3022.302	0.010834	0.002690
55934.805	7752.232	-10387.211	0.008242	0.001953
NO	NO	NO	NO	NO
! PC -- soft data
!Time		Err (pos)	Err(neg)	Rate		Error
609.441	3461.176	-219.460	0.627119	0.074737
4422.357	330.250	-351.740	0.045277	0.009301
5499.084	818.072	-746.476	0.032258	0.005204
17258.598	11483.998	-7407.395	0.022180	0.004688
36809.363	3930.236	-3022.302	0.011025	0.002726
55934.805	7752.232	-10387.211	0.012633	0.002448
NO	NO	NO	NO	NO
! PC -- hardness ratio data
!Time		Err (pos)	Err(neg)	Rate		Error
609.441	3461.176	-219.460	0.158645	0.045598
4422.357	330.250	-351.740	0.662525	0.216021
5499.084	818.072	-746.476	0.735611	0.182652
17258.598	11483.998	-7407.395	0.687430	0.227029
36809.363	3930.236	-3022.302	0.982681	0.344369
55934.805	7752.232	-10387.211	0.652410	0.199695