! Swift/XRT lightcurve of trigger: 21518, name: GRB 220921A - source 4
 ! T0 for this burst is Swift MET=685451188.956 s, = 2022 Sep 21 at 11:05:59.000 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/00021518
 ! BINMODE: GRB-like (counts)

READ TERR 1 2
! PC data
!Time    	T_+ve   	T_-ve   	Flux    	Fluxpos 	Fluxneg
39707.786	324.115	-377.929	1.64915076180544e-13	8.88913529983703e-14	-6.56553235972129e-14