! Swift/XRT lightcurve of trigger: 20948, name: GRB 190919B - source 1
 ! T0 for this burst is Swift MET=590629600.0 s, = 2019 Sep 19 at 23:46:16.349 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/00020948
 ! BINMODE: GRB-like (counts)

READ TERR 1 2
! PC data
!Time    	T_+ve   	T_-ve   	Rate    	Ratepos 	Rateneg
29188.427	343.697	-624.128	1.987779e-02	5.199899e-03	-5.199899e-03
30281.521	456.607	-749.398	2.542800e-02	5.238905e-03	-5.238905e-03
36048.734	390.719	-424.154	2.027414e-02	6.271801e-03	-5.205737e-03