! Swift/XRT detailed lightcurve of trigger: 20770, name: GRB 170522A - source 4
 ! Swift/XRT lightcurve of trigger: 20770, name: GRB 170522A - source 4
 ! T0 for this burst is Swift MET=517160735.0 s, = 2017 May 22 at 15:45:15.896 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
178868.897	820552.999	-137590.221	2.525928e-03	1.011868e-03	-8.085365e-04	1.202009e-04	8.236027e-06	0.004907