! Swift/XRT detailed lightcurve of trigger: 361831, name: GRB 090904B
 ! T0 for this burst is Swift MET=273720263.168 s, = 2009 Sep 04 at 01:24:18.113 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
! WT data
145.293	3.892	-7.440	3.010772e+00	5.664820e-01	-5.664422e-01	5.665477e-02	5.665477e-02	1.000000
NO	NO	NO	NO	NO
! PC data
175.781	15.525	-17.070	2.777786e+00	6.236198e-01	-6.236198e-01	2.416296e-03	1.395049e-03	1.000000
213.021	18.402	-21.715	2.228105e+00	5.008837e-01	-5.008837e-01	2.617648e-03	1.308824e-03	1.000000
244.528	9.461	-13.105	4.098076e+00	8.988269e-01	-8.988269e-01	4.653607e-03	2.326803e-03	1.000000
263.218	8.323	-9.228	5.028518e+00	1.130424e+00	-1.130424e+00	5.983208e-03	2.991604e-03	1.000000
279.779	9.312	-8.239	4.976134e+00	1.118648e+00	-1.118648e+00	5.983188e-03	2.991594e-03	1.000000
302.661	14.011	-13.569	3.219953e+00	7.238537e-01	-7.238537e-01	3.807494e-03	1.903747e-03	1.000000
329.273	9.965	-12.601	3.939619e+00	8.844541e-01	-8.844541e-01	3.490205e-03	2.015071e-03	1.000000
354.271	17.562	-15.033	2.987847e+00	6.401064e-01	-6.401064e-01	3.221724e-03	1.610862e-03	1.000000
389.423	17.513	-17.590	2.654320e+00	5.806911e-01	-5.806911e-01	1.495799e-03	1.057690e-03	1.000000
427.231	22.329	-20.296	2.098991e+00	4.737584e-01	-4.737584e-01	4.311425e-03	1.629565e-03	1.000000
471.720	17.956	-22.161	2.333852e+00	5.125338e-01	-5.125338e-01	3.272064e-03	1.463311e-03	1.000000
520.548	24.290	-30.871	1.678220e+00	3.690217e-01	-3.690217e-01	2.855617e-03	1.165801e-03	1.000000
574.271	20.713	-29.434	1.851195e+00	4.055045e-01	-4.055045e-01	1.570590e-03	9.067808e-04	1.000000
621.228	26.410	-26.244	1.772517e+00	3.892599e-01	-3.892599e-01	2.492999e-03	1.114903e-03	1.000000
665.613	17.127	-17.975	2.526588e+00	5.695060e-01	-5.695060e-01	4.487401e-03	1.831974e-03	1.000000
718.148	24.768	-35.408	1.468059e+00	3.309081e-01	-3.309081e-01	2.617649e-03	1.068651e-03	1.000000
792.817	32.840	-49.901	1.071247e+00	2.414646e-01	-2.414646e-01	1.903744e-03	7.772001e-04	1.000000
849.564	28.746	-23.907	1.687692e+00	3.799053e-01	-3.799053e-01	2.493000e-03	1.114904e-03	1.000000
897.177	21.251	-18.866	2.227177e+00	5.033665e-01	-5.033665e-01	5.235297e-03	1.850957e-03	1.000000
952.942	50.735	-34.514	1.049061e+00	2.367813e-01	-2.367813e-01	2.155709e-03	8.147813e-04	1.000000
1047.237	81.805	-43.560	7.003532e-01	1.589282e-01	-1.589282e-01	2.303531e-03	6.945406e-04	1.000000
1237.294	114.892	-108.252	6.983752e-01	1.196660e-01	-1.196660e-01	4.353087e-03	7.156432e-04	1.000000
29247.947	412.638	-434.836	2.307339e-02	6.142768e-03	-6.142768e-03	5.319732e-04	6.598315e-05	1.000000
30813.101	524.874	-1152.516	1.313061e-02	3.379701e-03	-3.379701e-03	5.918776e-04	4.984508e-05	0.985044
35771.431	1346.251	-1163.569	1.280677e-02	2.697345e-03	-2.697345e-03	5.010367e-04	3.734507e-05	0.998996
40805.635	285.439	-416.609	2.745534e-02	7.232051e-03	-7.232051e-03	4.212764e-04	6.660964e-05	1.000000
41793.976	1104.858	-702.902	1.027475e-02	2.815894e-03	-2.815894e-03	4.785406e-04	4.424110e-05	1.000000
47247.393	1433.608	-1078.707	1.028624e-02	2.422675e-03	-2.422675e-03	4.019435e-04	2.780302e-05	1.000000