! Swift/XRT detailed lightcurve of trigger: 21428, name: GRB 210413B - source 1
 ! Swift/XRT lightcurve of trigger: 21428, name: GRB 210413B - source 1
 ! 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
197056.405	9646.738	-11883.117	4.298629e-03	1.141660e-03	-1.141660e-03	1.891327e-04	1.142593e-05	0.230235
3143792.436	52266.401	-28783.747	1.645667e-03	1.234107e-03	-8.311565e-04	5.389614e-05	6.142035e-06	0.030440
NO	NO	NO	NO	NO	NO
! PC Upper limit
2468354.317	23244.865	-23244.865	7.0750e-03	0.0000e+00	0.0000e+00	2.5764e-05	3.9290e-06	0.0393