GRB 241026A Fermi GBM Analysis

"At 22:42:31.28 UT on 26 October 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 241026A (trigger 751675356/241026946). which was also detected by Swift BAT (D. M. Palmer et al. 2024, GCN 37896) and Einstein Probe (D.Y. Li et al. 2024, GCN 37909). The Fermi GBM on-ground location is consistent with the Swift BAT position. The angle from the Fermi LAT boresight is 43 degrees. The GBM light curve consists of a single emission episode with a duration (T90) of about 16 s (50-300 keV). The time-averaged spectrum from T0+0.003 to T0+16.768 s is best fit by a Comptonized function with a power law index -0.96 +/- 0.05 and a cutoff energy, parameterized as Epeak, is 229 +/- 20. The event fluence (10-1000 keV) in this time interval is (6.6 +/- 0.3)E-06 erg/cm^2. The 1-sec peak photon flux measured starting from T0+0.70 s in the 10-1000 keV band is 7.1 +/- 0.3 ph/s/cm^2. A Band function fits the spectrum equally well with Epeak = 183 +/- 22 keV, alpha = -0.87 +/- 0.07 and beta = -2.17 +/- 0.2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog: https://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html For Fermi GBM data and info, please visit the official Fermi GBM Support Page: https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/"