! 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
 ! The data are in 5 columns:  ! time, time error (+ve), time error (-ve), source count-rate, 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/00020885
 ! BINMODE: GRB-like (counts)

READ TERR 1 2
! PC data
!Time    	T_+ve   	T_-ve   	Rate    	Ratepos 	Rateneg
75178.703	3820.534	-1888.930	1.239624e-02	2.974528e-03	-2.974528e-03
327193.129	16470.125	-1843.551	8.006240e-03	2.002924e-03	-2.002924e-03
513034.915	3379.202	-3768.926	1.090022e-02	2.418878e-03	-2.418878e-03
524842.720	2731.382	-3997.556	1.250599e-02	3.174077e-03	-3.174077e-03
533296.711	334.772	-392.345	7.739158e-03	4.795845e-03	-3.411930e-03