! Swift/XRT detailed lightcurve of trigger: 1311764, name: GRB 250509A ! T0 for this burst is Swift MET=768522846.208 s, = 2025 May 09 at 22:33:30.621 UT ! Data covers 0.3-10 keV ! For details of light-curve production, see Evans et al. 2007, A&A, 469, 379 ! BINMODE: READ TERR 1 2 READ SERR 3 !Time T_+ve T_-ve Rate Ratepos Rateneg BGrate BGerr FracExp ! WT data 77.7575 0.3519 -0.3526 1.103847e+02 1.366116e+01 -1.366475e+01 9.112197e-01 9.112197e-01 1.000000 78.4919 0.4002 -0.3826 9.934709e+01 1.229532e+01 -1.229862e+01 8.201045e-01 8.201045e-01 1.000000 79.1593 0.3698 -0.2671 1.209150e+02 1.515814e+01 -1.516248e+01 2.015795e+00 1.425382e+00 1.000000 79.8216 0.3124 -0.2925 8.718390e+01 1.300008e+01 -1.300279e+01 0.000000e+00 0.000000e+00 1.000000 80.4748 0.3335 -0.3408 1.153337e+02 1.427604e+01 -1.428041e+01 9.520734e-01 9.520734e-01 1.000000 81.1319 0.2689 -0.3236 8.901661e+01 1.327376e+01 -1.327660e+01 0.000000e+00 0.000000e+00 1.000000 81.7282 0.2792 -0.3274 8.692899e+01 1.296317e+01 -1.296603e+01 0.000000e+00 0.000000e+00 1.000000 82.3744 0.3499 -0.3670 7.250816e+01 1.101931e+01 -1.102165e+01 8.954104e-01 8.954104e-01 1.000000 82.9855 0.3313 -0.2611 9.763740e+01 1.405213e+01 -1.405552e+01 1.083592e+00 1.083592e+00 1.000000 83.6112 0.2732 -0.2944 9.292068e+01 1.385942e+01 -1.386252e+01 0.000000e+00 0.000000e+00 1.000000 84.2758 0.3487 -0.3915 7.023954e+01 1.067443e+01 -1.067670e+01 8.673950e-01 8.673950e-01 1.000000 84.9873 0.2581 -0.3628 8.493642e+01 1.266766e+01 -1.267050e+01 0.000000e+00 0.000000e+00 1.000000 85.5683 0.4225 -0.3229 1.043252e+02 1.291970e+01 -1.292382e+01 8.611986e-01 8.611986e-01 1.000000 86.2800 0.2588 -0.2891 9.624196e+01 1.435617e+01 -1.435929e+01 0.000000e+00 0.000000e+00 1.000000 86.8779 0.3548 -0.3390 7.600638e+01 1.133688e+01 -1.133940e+01 0.000000e+00 0.000000e+00 1.000000 87.5248 0.3680 -0.2921 7.989900e+01 1.191625e+01 -1.191892e+01 0.000000e+00 0.000000e+00 1.000000 88.2428 0.4755 -0.3500 6.248122e+01 9.317730e+00 -9.319800e+00 0.000000e+00 0.000000e+00 1.000000 89.0808 0.3242 -0.3625 7.399985e+01 1.124890e+01 -1.125126e+01 9.348352e-01 9.348352e-01 1.000000 89.8853 0.4911 -0.4803 5.231339e+01 7.953229e+00 -7.954817e+00 6.608717e-01 6.608717e-01 1.000000 90.7597 0.3978 -0.3833 6.600567e+01 9.846408e+00 -9.848500e+00 0.000000e+00 0.000000e+00 1.000000 91.6464 0.3846 -0.4889 5.901531e+01 8.803002e+00 -8.804926e+00 0.000000e+00 0.000000e+00 1.000000 92.3819 0.3518 -0.3509 7.335895e+01 1.094603e+01 -1.094804e+01 0.000000e+00 0.000000e+00 1.000000 93.2748 0.4552 -0.5411 5.174440e+01 7.721793e+00 -7.723083e+00 0.000000e+00 0.000000e+00 1.000000 94.321 0.682 -0.591 4.052657e+01 6.046867e+00 -6.048007e+00 0.000000e+00 0.000000e+00 1.000000 95.4802 0.4524 -0.4781 5.461440e+01 8.306324e+00 -8.307525e+00 6.899402e-01 6.899402e-01 1.000000 96.4143 0.3883 -0.4817 5.587600e+01 9.002033e+00 -9.003338e+00 2.951666e+00 1.475833e+00 1.000000 97.346 0.567 -0.544 4.577423e+01 6.961891e+00 -6.962885e+00 5.782628e-01 5.782628e-01 1.000000 98.583 0.708 -0.670 3.636244e+01 5.637327e+00 -5.638016e+00 9.311898e-01 6.584506e-01 1.000000 99.902 0.562 -0.611 4.442103e+01 6.680469e+00 -6.681307e+00 5.475564e-01 5.475564e-01 1.000000 101.082 0.583 -0.618 4.241232e+01 6.453687e+00 -6.454048e+00 5.345819e-01 5.345819e-01 1.000000 102.152 0.611 -0.487 4.505495e+01 7.121748e+00 -7.122368e+00 1.754455e+00 1.012935e+00 1.000000 103.591 0.552 -0.829 3.635845e+01 5.635741e+00 -5.636590e+00 9.300127e-01 6.576183e-01 1.000000 104.797 0.697 -0.654 3.826321e+01 5.711406e+00 -5.712126e+00 0.000000e+00 0.000000e+00 1.000000 106.537 0.743 -1.043 2.851371e+01 4.339014e+00 -4.339217e+00 3.593983e-01 3.593983e-01 1.000000 108.065 0.820 -0.785 3.173882e+01 4.832448e+00 -4.832192e+00 4.000488e-01 4.000488e-01 1.000000 109.554 0.647 -0.670 3.939573e+01 5.885761e+00 -5.885521e+00 0.000000e+00 0.000000e+00 1.000000 111.075 1.090 -0.874 2.606189e+01 3.964835e+00 -3.965220e+00 3.268450e-01 3.268450e-01 1.000000 112.739 0.643 -0.574 4.206471e+01 6.398438e+00 -6.399226e+00 5.275380e-01 5.275380e-01 1.000000 114.263 0.918 -0.880 2.804764e+01 4.349038e+00 -4.349432e+00 7.138277e-01 5.047524e-01 1.000000 115.909 0.767 -0.728 3.425270e+01 5.210393e+00 -5.210994e+00 4.295667e-01 4.295667e-01 1.000000 117.645 0.884 -0.970 2.761268e+01 4.202877e+00 -4.202898e+00 3.462936e-01 3.462936e-01 1.000000 119.426 0.846 -0.897 2.999097e+01 4.481778e+00 -4.481396e+00 0.000000e+00 0.000000e+00 1.000000 121.297 0.984 -1.024 2.627990e+01 3.998264e+00 -3.998606e+00 3.196099e-01 3.196099e-01 1.000000 123.535 1.196 -1.254 2.123480e+01 3.293110e+00 -3.293327e+00 5.240901e-01 3.705876e-01 1.000000 126.126 1.377 -1.395 1.904360e+01 2.897429e+00 -2.897659e+00 2.316037e-01 2.316037e-01 1.000000 128.747 1.016 -1.244 2.336219e+01 3.554488e+00 -3.554774e+00 2.841254e-01 2.841254e-01 1.000000 130.801 0.853 -1.039 2.884600e+01 4.258141e+00 -4.258803e+00 0.000000e+00 0.000000e+00 1.000000 133.211 1.481 -1.558 1.752743e+01 2.616570e+00 -2.616847e+00 0.000000e+00 0.000000e+00 1.000000 136.162 1.344 -1.469 1.893540e+01 2.826197e+00 -2.826592e+00 0.000000e+00 0.000000e+00 1.000000 139.199 1.708 -1.693 1.476382e+01 2.378757e+00 -2.379070e+00 7.548892e-01 3.774446e-01 1.000000 142.639 1.386 -1.732 1.709659e+01 2.551516e+00 -2.551910e+00 0.000000e+00 0.000000e+00 1.000000 145.556 1.608 -1.532 1.697153e+01 2.532660e+00 -2.533083e+00 0.000000e+00 0.000000e+00 1.000000 148.947 1.825 -1.783 1.455998e+01 2.214019e+00 -2.214403e+00 1.779290e-01 1.779290e-01 1.000000 152.455 2.240 -1.683 1.338581e+01 2.035530e+00 -2.035875e+00 1.636453e-01 1.636453e-01 1.000000 156.509 1.586 -1.814 1.521679e+01 2.358855e+00 -2.359182e+00 3.776432e-01 2.670341e-01 1.000000 160.330 1.916 -2.235 8.553620e+00 1.562549e+00 -1.562754e+00 0.000000e+00 0.000000e+00 1.000000 164.198 2.506 -1.953 1.186813e+01 1.770508e+00 -1.770876e+00 0.000000e+00 0.000000e+00 1.000000 168.415 1.862 -1.711 1.437467e+01 2.227011e+00 -2.227470e+00 3.594010e-01 2.541349e-01 1.000000 172.638 2.468 -2.361 1.064340e+01 1.649368e+00 -1.649674e+00 2.659083e-01 1.880255e-01 1.000000 177.157 2.396 -2.051 7.770223e+00 1.460238e+00 -1.460433e+00 1.443350e-01 1.443350e-01 1.000000 182.173 2.218 -2.620 6.832757e+00 1.360704e+00 -1.360872e+00 3.981292e-01 2.298600e-01 1.000000 187.022 2.231 -2.632 7.120791e+00 1.338245e+00 -1.338418e+00 1.320302e-01 1.320302e-01 1.000000 191.744 2.629 -2.491 6.762006e+00 1.270641e+00 -1.270819e+00 1.253778e-01 1.253778e-01 1.000000 197.117 2.723 -2.744 6.455614e+00 1.179021e+00 -1.179197e+00 0.000000e+00 0.000000e+00 1.000000 202.295 2.555 -2.455 7.042090e+00 1.286189e+00 -1.286380e+00 0.000000e+00 0.000000e+00 1.000000 208.102 5.032 -3.252 4.155489e+00 7.809796e-01 -7.810781e-01 7.749951e-02 7.749951e-02 1.000000 218.452 4.115 -5.318 3.336907e+00 7.054880e-01 -7.055643e-01 3.402850e-01 1.521801e-01 1.000000 227.330 3.448 -4.763 4.130794e+00 7.762098e-01 -7.763182e-01 7.818803e-02 7.818803e-02 1.000000 NO NO NO NO NO ! PC data 244.330 11.598 -8.461 2.110161e+00 4.770726e-01 -4.770726e-01 1.077904e-02 3.810965e-03 1.000000 264.523 11.463 -8.596 2.209239e+00 4.858979e-01 -4.858979e-01 8.084273e-03 3.300391e-03 1.000000 289.542 11.517 -13.556 1.699250e+00 3.820568e-01 -3.820568e-01 4.311610e-03 2.155805e-03 1.000000 322.468 21.216 -21.409 1.051242e+00 2.330467e-01 -2.330467e-01 7.608727e-03 2.196450e-03 1.000000 360.790 15.489 -17.106 1.427275e+00 3.122716e-01 -3.122716e-01 1.658313e-03 1.172604e-03 1.000000 396.881 24.529 -20.603 9.437596e-01 2.113205e-01 -2.113205e-01 5.988344e-04 5.988344e-04 1.000000 450.973 20.584 -29.563 8.917374e-01 1.963859e-01 -1.963859e-01 3.772661e-03 1.425932e-03 1.000000 487.843 21.323 -16.287 1.122853e+00 2.528086e-01 -2.528086e-01 3.593009e-03 1.606842e-03 1.000000 522.637 14.109 -13.471 1.546930e+00 3.487697e-01 -3.487697e-01 5.879476e-03 2.400286e-03 1.000000 550.108 14.220 -13.361 1.525978e+00 3.426268e-01 -3.426268e-01 2.939736e-03 1.697257e-03 1.000000 584.957 11.965 -20.630 1.563628e+00 3.224862e-01 -3.224862e-01 7.462395e-03 2.487465e-03 1.000000 608.288 13.707 -11.366 1.698572e+00 3.819043e-01 -3.819043e-01 4.311610e-03 2.155805e-03 1.000000 633.602 15.974 -11.607 1.564311e+00 3.526884e-01 -3.526884e-01 5.879472e-03 2.400284e-03 1.000000 660.944 13.702 -11.368 1.753620e+00 3.831710e-01 -3.831710e-01 1.078019e-03 1.078019e-03 1.000000 4386.521 27.118 -38.072 6.622656e-01 1.486981e-01 -1.486981e-01 1.243836e-03 7.181289e-04 1.000000 4447.078 24.229 -33.439 7.474033e-01 1.680451e-01 -1.680451e-01 1.874763e-03 9.373815e-04 1.000000 4509.476 34.543 -38.169 5.889119e-01 1.329593e-01 -1.329593e-01 2.602045e-03 9.834805e-04 1.000000 4575.952 28.243 -31.933 7.292551e-01 1.646448e-01 -1.646448e-01 3.144136e-03 1.188372e-03 1.000000 4647.874 39.062 -43.679 5.224446e-01 1.187739e-01 -1.187739e-01 3.919963e-03 1.131596e-03 1.000000 4739.751 34.940 -52.815 5.352978e-01 1.155646e-01 -1.155646e-01 3.079970e-03 9.739719e-04 1.000000 4825.280 34.660 -50.588 5.280426e-01 1.161372e-01 -1.161372e-01 1.902334e-03 7.766248e-04 1.000000 4894.013 26.102 -34.073 7.329818e-01 1.661754e-01 -1.661754e-01 4.491622e-03 1.420376e-03 1.000000 4958.913 53.973 -38.797 4.647640e-01 1.046409e-01 -1.046409e-01 1.456741e-03 6.514746e-04 1.000000 5047.424 20.623 -34.538 8.111362e-01 1.791069e-01 -1.791069e-01 4.409961e-03 1.469987e-03 1.000000 5095.983 27.225 -27.936 7.784252e-01 1.752613e-01 -1.752613e-01 2.449974e-03 1.095662e-03 1.000000 5269.263 202.980 -146.056 5.347508e-01 7.892359e-02 -7.892359e-02 3.430729e-03 7.671342e-04 0.452552 9731.464 47.476 -62.845 2.796486e-01 6.020381e-02 -6.020381e-02 1.911404e-03 5.763100e-04 1.000000 9831.929 54.826 -52.988 2.648794e-01 5.957470e-02 -5.957470e-02 1.066831e-03 4.355319e-04 1.000000 9968.065 111.753 -81.310 2.385455e-01 5.243603e-02 -5.243603e-02 7.832790e-04 2.769309e-04 0.999991 10116.770 50.804 -36.952 3.223322e-01 7.256719e-02 -7.256719e-02 1.529133e-03 5.779581e-04 0.999994 10238.303 79.710 -70.729 1.868071e-01 4.209721e-02 -4.209721e-02 1.019415e-03 3.604177e-04 1.000000 10356.089 49.679 -38.077 3.218825e-01 7.232503e-02 -7.232503e-02 1.092230e-03 4.884603e-04 1.000000 10473.778 57.356 -68.010 2.272619e-01 5.101477e-02 -5.101477e-02 6.116487e-04 3.058244e-04 1.000000 10600.111 68.925 -68.977 2.040627e-01 4.598577e-02 -4.598577e-02 1.112089e-03 3.931827e-04 1.000000 10737.100 57.302 -68.064 2.359568e-01 5.192060e-02 -5.192060e-02 1.376209e-03 4.587365e-04 1.000000 10855.617 76.687 -61.216 2.073436e-01 4.658885e-02 -4.658885e-02 6.950551e-04 3.108381e-04 1.000000 10995.183 64.994 -62.879 2.218840e-01 5.024678e-02 -5.024678e-02 1.948880e-03 5.405222e-04 1.000000 11148.518 37.025 -88.341 2.234867e-01 5.041216e-02 -5.041216e-02 1.376209e-03 4.587362e-04 1.000000 11289.679 113.994 -104.136 1.590466e-01 3.230950e-02 -3.230950e-02 1.757666e-03 3.930260e-04 1.000000 21132.931 110.516 -157.767 7.702378e-02 2.021756e-02 -2.021756e-02 9.071914e-04 2.081240e-04 1.000000 21358.050 133.621 -114.603 1.106267e-01 2.512554e-02 -2.512554e-02 1.238525e-03 2.528129e-04 1.000000 21709.758 193.113 -218.087 4.978363e-02 1.309031e-02 -1.309031e-02 6.541900e-04 1.427560e-04 1.000000 22048.264 178.051 -145.393 6.264665e-02 1.654495e-02 -1.654495e-02 1.029703e-03 2.019414e-04 1.000000 22486.419 236.342 -260.104 6.539136e-02 1.358881e-02 -1.358881e-02 8.558264e-04 1.489803e-04 0.994933 26698.274 235.449 -155.692 4.915870e-02 1.281394e-02 -1.281394e-02 3.614564e-04 8.292378e-05 1.000000 27143.594 116.080 -209.871 5.877686e-02 1.530567e-02 -1.530567e-02 3.880898e-04 9.412561e-05 1.000000 27474.071 114.061 -214.397 5.833061e-02 1.518947e-02 -1.518947e-02 3.851271e-04 9.340705e-05 1.000000 27951.188 331.460 -363.056 3.641503e-02 8.319729e-03 -8.319729e-03 6.107004e-04 8.088924e-05 1.000000