{
  "body": "O. Mukherjee (USRA), S. Dalessi (UAH), S. Bala (USRA) and C. Meegan (UAH) report on behalf of\nthe Fermi Gamma-ray Burst Monitor Team:\n\n\"At 18:34:20.39 UT on 30 October 2024, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB241030B (trigger 752006065/241030774).\nwhich was also detected by Swift/BAT (N. Klingler et al. 2024, GCN 37981), \nand SVOM/ECLAIRs (D. Zhao et al. 2024, GCN 37984).\nThe Fermi GBM on-ground location is consistent with the Swift/BAT position.\n\nThe angle from the Fermi LAT boresight is 54 degrees.\n\nThe GBM light curve consists of a single bright peak with a duration (T90)\nof about 6.8 s (50-300 keV). The time-averaged spectrum\nfrom T0-1.0 to T0+9.2 s is best fit by\na power law function with an exponential high-energy cutoff.\nThe power law index is -1.04 +/- 0.07 and the cutoff energy,\nparameterized as Epeak, is 200 +/- 20 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(3.2 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+0.83 s in the 10-1000 keV band is 6.7 +/- 0.2 ph/s/cm^2.\n\nA Band function fits the spectrum equally well with\nEpeak = 190 +/- 26 keV, alpha = -1.03 +/- 0.08 and beta = -2.81 +/- 1.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog:\nhttps://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html\n\nFor Fermi GBM data and info, please visit the official Fermi GBM Support Page:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/\"",
  "circularId": 37996,
  "submittedHow": "web",
  "bibcode": "2024GCN.37996....1M",
  "createdOn": 1730339061076,
  "subject": "GRB241030B: Fermi GBM Observation",
  "eventId": "GRB 241030B",
  "submitter": "oindabimukherjee@gmail.com",
  "format": "text/plain"
}