Last updated using ObsID 00318170000, version 18;
The BAT spectrum was fitted with a cut-off power-law. The cutoff energy was 99.8 keV and was not allowed to evolve. See caveats for details.
All data uses absorption NH=1.906 × 1022 cm-2 at z=0.
(Source: the late-time spectrum from the XRT spectrum repository).