! Swift/XRT lightcurve of trigger: 21428, name: GRB 210413B - source 3
 ! T0 for this burst is Swift MET=640050438.9 s, = 2021 Apr 13 at 23:46:52.071 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/00021428
 ! BINMODE: GRB-like (counts)

READ TERR 1 2
! PC data
!Time    	T_+ve   	T_-ve   	Rate    	Ratepos 	Rateneg
197156.767	9546.378	-8027.685	4.904381e-03	1.555029e-03	-1.290709e-03