! Swift/XRT detailed lightcurve of trigger: 21704, name: GRB 240821A - source 4
 ! T0 for this burst is Swift MET=745958179.038 s, = 2024 Aug 21 at 18:35:45.000 UT

 ! Data covers 0.3-10 keV
 ! For details of light-curve production, see Evans et al. 2007, A&A, 469, 379
 ! BINMODE: GRB-like (counts)
READ TERR 1 2
READ SERR 3
!Time    	T_+ve   	T_-ve   	Rate    	Ratepos 	Rateneg 	BGrate  	BGerr   	FracExp
! PC data
129450.917	24198.447	-37844.534	1.305064e-03	7.993780e-04	-5.904220e-04	1.408861e-04	8.495753e-06	0.080461