! Swift/XRT detailed lightcurve of trigger: 20895, name: GRB 190531B - source 10
 ! Swift/XRT lightcurve of trigger: 20895, name: GRB 190531B - source 10
 ! 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
48729.162	74496.280	-30535.317	4.821592e-03	1.135552e-03	-1.135552e-03	1.393699e-04	7.121469e-06	0.068990
NO	NO	NO	NO	NO	NO
! PC Upper limit
126666.941	115.336	-115.336	2.5643e-02	0.0000e+00	0.0000e+00	4.8512e-05	1.4627e-05	1.0000