! Swift/XRT detailed lightcurve of trigger: 1426088, name: GRB 251221A ! T0 for this burst is Swift MET=787987508.864 s, = 2025 Dec 21 at 05:25:03.864 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 NO NO NO NO NO ! PC data 156.237 7.932 -7.112 3.153845e+00 6.751475e-01 -6.751475e-01 5.861142e-03 3.383932e-03 1.000000 175.786 10.949 -11.617 2.197189e+00 4.684423e-01 -4.684423e-01 0.000000e+00 0.000000e+00 1.000000 193.318 10.969 -6.583 2.596775e+00 5.823933e-01 -5.823933e-01 3.349224e-03 2.368259e-03 1.000000 218.408 13.459 -14.122 1.770596e+00 3.880288e-01 -3.880288e-01 3.196994e-03 1.845786e-03 1.000000 246.187 8.247 -14.319 2.039923e+00 4.588774e-01 -4.588774e-01 5.209905e-03 2.604953e-03 1.000000 269.616 12.397 -15.183 1.726604e+00 3.773117e-01 -3.773117e-01 1.065662e-03 1.065662e-03 1.000000 302.044 30.116 -20.030 9.066013e-01 2.045521e-01 -2.045521e-01 3.516690e-03 1.435683e-03 1.000000 348.957 13.292 -16.796 1.582620e+00 3.554748e-01 -3.554748e-01 2.930571e-03 1.691966e-03 1.000000 405.470 29.490 -43.222 6.416891e-01 1.452181e-01 -1.452181e-01 3.233736e-03 1.143298e-03 1.000000 453.401 16.662 -18.440 1.359447e+00 2.996340e-01 -2.996340e-01 5.861159e-03 2.215310e-03 1.000000 511.021 44.291 -40.958 5.375401e-01 1.212826e-01 -1.212826e-01 2.068641e-03 8.445190e-04 1.000000 596.349 49.228 -41.036 5.001290e-01 1.138693e-01 -1.138693e-01 3.907437e-03 1.127980e-03 1.000000 730.540 67.983 -84.964 2.751020e-01 6.216596e-02 -6.216596e-02 1.350293e-03 5.103629e-04 0.999954 852.539 58.814 -54.016 3.606398e-01 8.187279e-02 -8.187279e-02 2.627465e-03 8.308774e-04 0.999991 923.936 7.476 -12.583 4.523500e+00 9.911949e-01 -9.911949e-01 4.255666e-03 2.457010e-03 1.000000 945.153 13.839 -13.742 3.860398e+00 7.765615e-01 -7.765615e-01 5.158385e-03 2.306900e-03 1.000000 978.890 22.727 -19.898 2.120528e+00 4.659385e-01 -4.659385e-01 3.337775e-03 1.492698e-03 1.000000 1041.251 30.570 -39.635 1.212169e+00 2.746150e-01 -2.746150e-01 3.647715e-03 1.215905e-03 1.000000 1121.074 41.011 -49.253 9.466634e-01 2.144650e-01 -2.144650e-01 2.837112e-03 9.457040e-04 1.000000 1172.609 7.027 -10.524 4.961644e+00 1.124052e+00 -1.124052e+00 1.459085e-02 4.863618e-03 1.000000 1186.400 5.773 -6.764 6.854133e+00 1.539294e+00 -1.539294e+00 6.809073e-03 3.931220e-03 1.000000 1198.435 6.275 -6.262 7.234942e+00 1.583145e+00 -1.583145e+00 4.539389e-03 3.209833e-03 1.000000 1214.602 10.166 -9.892 4.228096e+00 9.523010e-01 -9.523010e-01 7.092777e-03 3.171986e-03 1.000000 1234.039 5.773 -9.271 5.756695e+00 1.289096e+00 -1.289096e+00 1.891409e-03 1.891409e-03 1.000000 1247.053 7.803 -7.241 6.567010e+00 1.371036e+00 -1.371036e+00 1.891412e-03 1.891412e-03 1.000000 1261.239 6.154 -6.383 7.125855e+00 1.570091e+00 -1.570091e+00 1.588779e-02 6.005019e-03 1.000000 1274.420 5.509 -7.028 7.815315e+00 1.633705e+00 -1.633705e+00 4.539375e-03 3.209823e-03 1.000000 1288.358 6.615 -8.429 6.257351e+00 1.341108e+00 -1.341108e+00 7.565657e-03 3.782828e-03 1.000000 1302.486 10.038 -7.513 4.864691e+00 1.092507e+00 -1.092507e+00 4.863613e-03 2.808008e-03 1.000000 1318.659 8.909 -6.135 5.797361e+00 1.303854e+00 -1.303854e+00 7.565657e-03 3.782828e-03 1.000000 1342.760 9.882 -15.191 3.972828e+00 8.336214e-01 -8.336214e-01 5.674232e-03 2.537594e-03 1.000000 1360.499 7.186 -7.858 6.256621e+00 1.339186e+00 -1.339186e+00 5.674212e-03 3.276008e-03 1.000000 1378.077 9.666 -10.392 4.265786e+00 9.566193e-01 -9.566193e-01 2.837117e-03 2.006144e-03 1.000000 1395.528 9.767 -7.784 5.582524e+00 1.171385e+00 -1.171385e+00 8.106030e-03 3.625127e-03 1.000000 1410.817 7.015 -5.521 9.252502e+00 1.786373e+00 -1.786373e+00 6.809106e-03 3.931239e-03 1.000000 1422.160 5.701 -4.328 9.308037e+00 1.997581e+00 -1.997581e+00 1.418554e-02 6.343967e-03 1.000000 1433.797 6.601 -5.936 7.838816e+00 1.644824e+00 -1.644824e+00 1.134847e-02 5.075192e-03 1.000000 1447.687 7.755 -7.289 6.281009e+00 1.342638e+00 -1.342638e+00 3.782818e-03 2.674857e-03 1.000000 1467.153 18.376 -11.712 3.119928e+00 6.695621e-01 -6.695621e-01 4.728529e-03 2.114663e-03 1.000000 1497.801 10.294 -12.272 3.797672e+00 8.591008e-01 -8.591008e-01 1.008752e-02 3.566475e-03 1.000000 1523.356 22.349 -15.261 2.222776e+00 5.065270e-01 -5.065270e-01 9.835343e-03 2.727833e-03 1.000000 1562.229 13.563 -16.524 2.841006e+00 6.398845e-01 -6.398845e-01 4.728520e-03 2.114658e-03 1.000000 2558.375 10101.573 -982.583 1.567440e-01 2.703878e-02 -2.703878e-02 9.436919e-04 1.228582e-04 0.066956 42169.192 9486.208 -13052.036 1.023408e-02 2.715562e-03 -2.715562e-03 4.545984e-04 4.049884e-05 0.089998 NO NO NO NO NO ! PC upper limits 55585.634 671.303 -292.697 3.4742e-02 0.0000e+00 0.0000e+00 2.0712e-02 9.4934e-04 0.4682