! Swift/XRT lightcurve of trigger: 21019, name: GRB 200723A - source 4
 ! T0 for this burst is Swift MET=617214949.4 s, = 2020 Jul 23 at 16:35:24.000 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/00021019
 ! BINMODE: GRB-like (counts)

READ TERR 1 2
! PC data
!Time    	T_+ve   	T_-ve   	Rate    	Ratepos 	Rateneg
82272.139	11913.306	-5391.587	3.319181e-03	1.384681e-03	-1.090582e-03