! Swift/XRT detailed lightcurve of trigger: 21428, name: GRB 210413B - source 4
 ! Swift/XRT lightcurve of trigger: 21428, name: GRB 210413B - source 4
 ! 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
 ! 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
200315.999	6387.141	-11186.916	2.658504e-03	1.203933e-03	-9.330385e-04	7.094642e-05	6.587210e-06	0.246392
3155249.030	40809.808	-40240.340	4.093406e-03	1.979421e-03	-1.502519e-03	5.243980e-05	6.714229e-06	0.030440
NO	NO	NO	NO	NO	NO
! PC Upper limit
2468354.317	23244.865	-23244.865	8.5644e-03	0.0000e+00	0.0000e+00	1.3672e-05	2.9836e-06	0.0356