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Table 2

Sequence of KW spectra and results of joint GROND-KW spectral fits.

Spectrum Start UT Stop UT Alpha Beta Epeak Norm
(s) (s) (keV) (10-3 ph/cm2/s/keV)

1 16 754.190 17 113.358 1.08 ± 0.01 2.38 ± 0.25 106 ± 25 5.5 ± 0.4
2 17 154.574 17 319.438 1.00 ± 0.01 2.64 ± 0.22 114 ± 11 14.6 ± 0.6
3 17 351.822 17 513.742 0.99 ± 0.01 2.45 ± 0.14 107 ± 10 18.3 ± 0.7
4 17 546.126 17 710.990 0.94 ± 0.01 2.44 ± 0.07 117 ± 5 35.7 ± 0.8
5 17 740.430 17 902.350 1.01 ± 0.01 2.66 ± 0.17 110 ± 8 20.9 ± 0.7
6 17 943.566 18 105.486 1.22 ± 0.03 4.03 ± 52.5 56 ± 61 2.4 ± 0.9
7 18 137.870 18 299.790 1.15 ± 0.02 9.38 ± 14.8 72 ± 35 2.8 ± 0.6
8 18 335.118 18 499.982 1.03 ± 0.05 4.72 ± 33.7 48 ± 52 7.4 ± 3.8
9 18 523.534 18 688.398 0.98 ± 0.02 3.72 ± 3.31 92 ± 19 9.4 ± 0.9
10 18 729.614 19 088.782 1.06 ± 0.02 3.79 ± 3.66 92 ± 21 3.9 ± 0.4
11 19 118.222 19 477.390 1.00 ± 0.02 2.89 ± 0.68 91 ± 18 6.1 ± 0.5

Notes. Alpha and beta are the photon indices of the Band function, and the normalization is at 100 keV. Start and stop times are seconds of the day.

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