! Swift/XRT detailed lightcurve of trigger: 20895, name: GRB 190531B - source 5
 ! Swift/XRT lightcurve of trigger: 20895, name: GRB 190531B - source 5
 ! T0 for this burst is Swift MET=581026212.0 s, = 2019 May 31 at 20:09:48.951 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
22887.040	2900.336	-4693.196	7.117330e-03	1.802296e-03	-1.802296e-03	2.839002e-04	1.535157e-05	0.576840
NO	NO	NO	NO	NO	NO
! PC Upper limit
122071.892	4710.384	-1105.524	6.8539e-03	0.0000e+00	0.0000e+00	1.1960e-04	1.1901e-05	0.4281