! Swift/XRT lightcurve of trigger: 20895, name: GRB 190531B - source 4
 ! 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
 ! The data are in 5 columns:  ! time, time error (+ve), time error (-ve), source flux, source error
 ! For a detailed description of light curve production, see Evans et al. 2007 (A&A, 469, 379 )
 ! For a detailed description of the file, see
 ! http://www.swift.ac.uk/xrt_curves/docs.php
 ! This lightcurve was obtained from http://www.swift.ac.uk/xrt_curves/00020895
 ! BINMODE: GRB-like (counts)

READ TERR 1 2
! PC data
!Time    	T_+ve   	T_-ve   	Flux    	Fluxpos 	Fluxneg
22161.994	7561.135	-3968.149	5.91009286357952e-13	1.49011431977458e-13	-1.49011431977458e-13
121929.517	4852.760	-963.151	3.44113247688125e-13	1.71422898526648e-13	-1.30015774691616e-13