! Swift/XRT detailed lightcurve of trigger: 350854, name: GRB 090429B
 ! Swift/XRT lightcurve of trigger: 350854, name: GRB 090429B
 ! T0 for this burst is Swift MET=262675808.1 s, = 2009 Apr 29 at 05:30:03.366 UT
 ! Data covers 0.3-10 keV
 ! For details of light-curve production, see Evans et al. 2007, A&A, 469, 379
 ! There are 3 datasets per PC mode:
 ! source count-rate, background count-rate (scaled to the source area)
 ! And fractional exposure. 
 ! Columns are given with each dataset
READ TERR 1
READ SERR 2
! PC source count-rate
!TIME		Err (pos)	Err(neg)	Rate		Error
157.882237	84.721535	-53.180874	0.157717	0.036088
290.503042	44.871370	-47.899270	0.239871	0.053637
369.714151	25.835821	-34.339739	0.388901	0.084865
441.642720	44.170592	-46.092748	0.425659	0.095535
543.851246	47.269206	-58.037934	0.404642	0.090481
626.041592	45.312899	-34.921141	0.501698	0.113041
696.047078	25.453653	-24.692587	0.441830	0.099173
747.130656	29.530956	-25.629924	0.401707	0.090167
811.265743	40.615188	-34.604131	0.292575	0.066176
880.815064	28.734068	-28.934132	0.385718	0.086249
943.742290	41.024682	-34.193158	0.398435	0.076895
4288.297664	111.363547	-119.309973	0.107911	0.028057
4723.535501	210.185650	-323.874290	0.046347	0.012113
5190.517045	244.668207	-256.795893	0.049353	0.012899
5785.266502	241.645409	-350.081251	0.041620	0.010935
6436.794917	327.248274	-409.883006	0.049440	0.010629
10284.732282	259.811449	-336.930891	0.031318	0.007921
10927.864178	298.670714	-383.320446	0.025575	0.006710
15542.754173	14328.956758	-4316.219282	0.008285	0.001589
131588.854618	227859.968133	-62488.530927	0.000600	0.000181
NO NO NO NO NO
! PC upper limit
497966.244872	0.000800	-134432.393580	0.000858	0.000000
NO NO NO NO NO NO
! PC background data
!TIME		Err (pos)	Err(neg)	Rate		Error
157.882237	84.721535	-53.180874	0.003188	0.001302
290.503042	44.871370	-47.899270	0.000000	0.000000
369.714151	25.835821	-34.339739	0.000000	0.000000
441.642720	44.170592	-46.092748	0.000795	0.000795
543.851246	47.269206	-58.037934	0.000000	0.000000
626.041592	45.312899	-34.921141	0.001827	0.001292
696.047078	25.453653	-24.692587	0.001461	0.001461
747.130656	29.530956	-25.629924	0.001328	0.001328
811.265743	40.615188	-34.604131	0.002922	0.001687
880.815064	28.734068	-28.934132	0.000000	0.000000
943.742290	41.024682	-34.193158	0.000974	0.000974
4288.297664	111.363547	-119.309973	0.000445	0.000222
4723.535501	210.185650	-323.874290	0.000336	0.000127
5190.517045	244.668207	-256.795893	0.000358	0.000135
5785.266502	241.645409	-350.081251	0.000433	0.000137
6436.794917	327.248274	-409.883006	0.000243	0.000127
10284.732282	259.811449	-336.930891	0.000307	0.000116
10927.864178	298.670714	-383.320446	0.000345	0.000115
15542.754173	14328.956758	-4316.219282	0.000214	0.000053
131588.854618	227859.968133	-62488.530927	0.000076	0.000004
497966.244872	0.000800	-134432.393580	0.000051	0.000004
NO NO NO NO NO NO
!  PC fractional exposure data
!TIME		Err (pos)	Err(neg)	Fraction exposure	Null
157.882237	84.721535	-53.180874	1.000000	0
290.503042	44.871370	-47.899270	1.000000	0
369.714151	25.835821	-34.339739	1.000000	0
441.642720	44.170592	-46.092748	0.999978	0
543.851246	47.269206	-58.037934	1.000000	0
626.041592	45.312899	-34.921141	0.999983	0
696.047078	25.453653	-24.692587	1.000000	0
747.130656	29.530956	-25.629924	1.000000	0
811.265743	40.615188	-34.604131	1.000000	0
880.815064	28.734068	-28.934132	1.000000	0
943.742290	41.024682	-34.193158	1.000000	0
4288.297664	111.363547	-119.309973	1.000000	0
4723.535501	210.185650	-323.874290	1.000000	0
5190.517045	244.668207	-256.795893	1.000000	0
5785.266502	241.645409	-350.081251	1.000000	0
6436.794917	327.248274	-409.883006	1.000000	0
10284.732282	259.811449	-336.930891	1.000000	0
10927.864178	298.670714	-383.320446	1.000000	0
15542.754173	14328.956758	-4316.219282	0.223630	0
131588.854618	227859.968133	-62488.530927	0.098755	0
497966.244872	0.000800	-134432.393580	0.113025	0