! Swift/XRT detailed lightcurve of trigger: 20885, name: GRB 190331B - source 1
 ! Swift/XRT lightcurve of trigger: 20885, name: GRB 190331B - source 1
 ! T0 for this burst is Swift MET=575697545.0 s, = 2019 Mar 31 at 03:58:42.340 UT
 ! Data covers 0.3-10 keV
 ! For details of light-curve production, see Evans et al. 2007, A&A, 469, 379
 ! BINMODE: GRB-like (counts)
READ TERR 1 2
READ SERR 3
!Time    	T_+ve   	T_-ve   	Rate    	Ratepos 	Rateneg 	BGrate  	BGerr   	FracExp
! PC data
75178.703	3820.534	-1888.930	1.239624e-02	2.974528e-03	-2.974528e-03	1.631899e-04	1.802131e-05	0.341657
327193.129	16470.125	-1843.551	8.006240e-03	2.002924e-03	-2.002924e-03	1.893785e-04	1.461087e-05	0.149367
513034.915	3379.202	-3768.926	1.090022e-02	2.418878e-03	-2.418878e-03	1.327989e-04	1.260471e-05	0.367600
524842.720	2731.382	-3997.556	1.250599e-02	3.174077e-03	-3.174077e-03	1.383866e-04	1.690662e-05	0.257104
533296.711	334.772	-392.345	7.739158e-03	4.795845e-03	-3.411930e-03	1.632248e-04	2.613688e-05	1.000000