Gamma-ray afterglow decay (N=63) t f s 133 122.7 5.7 143 109.5 5.4 153 101.4 5.2 163 92.0 4.9 173 86.8 4.8 183 83.7 4.7 193 77.2 4.5 203 69.4 4.3 213 69.2 4.3 223 62.4 4.1 233 65.0 4.1 243 57.2 3.9 253 54.6 3.8 263 54.3 3.8 278 50.8 2.6 298 49.8 2.6 318 45.4 2.5 338 45.5 2.5 358 46.9 2.5 378 40.2 2.3 398 41.7 2.4 418 39.4 2.3 438 39.9 2.3 458 34.8 2.2 478 31.9 2.1 498 31.5 2.1 518 32.5 2.1 538 27.4 1.9 558 32.4 2.1 578 29.8 2.0 598 28.5 2.0 618 29.1 2.0 638 24.8 1.8 658 27.3 1.9 658 27.3 1.9 658 27.3 1.9 658 27.3 1.9 658 27.3 1.9 658 27.3 1.9 678 24.6 1.8 708 24.2 1.3 748 20.4 1.2 788 19.8 1.2 828 19.0 1.1 868 16.3 1.1 908 18.5 1.1 948 17.6 1.1 988 16.3 1.1 1028 15.5 1.4 6009 1.072 0.134 6309 1.331 0.153 6609 0.987 0.126 6909 1.010 0.152 11809 0.560 0.056 12509 0.482 0.052 18109 0.331 0.052 23859 0.173 0.039 27859 0.108 0.028 35859 0.079 0.021 81459 0.0361 0.0088 99102 0.0273 0.0078 165485 0.0080 0.0016 412515 0.0013 0.0006