! Swift/XRT lightcurve of trigger: 21451, name: GRB 210606A - source 4
 ! T0 for this burst is Swift MET=644644589.2 s, = 2021 Jun 06 at 03:56:02.000 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/00021451
 ! BINMODE: GRB-like (counts)

READ TERR 1 2
! PC data
!Time    	T_+ve   	T_-ve   	Rate    	Ratepos 	Rateneg
94993.844	37936.487	-32647.566	1.109276e-03	6.603998e-04	-5.012337e-04
NO	NO	NO	NO	NO	NO
! PC Upper limit
390255.983	7210.643	-5950.844	5.4993e-03	0.0000e+00	0.0000e+00