{
  "createdOn": 1689019251672,
  "circularId": 34197,
  "bibcode": "2023GCN.34197....1B",
  "eventId": "GRB 230707B",
  "submitter": "sumanbala2210@gmail.com",
  "subject": "GRB 230707B: Fermi GBM Observation",
  "body": "S. Bala (USRA) and C. Meegan (UAH) report on behalf of\nthe Fermi Gamma-ray Burst Monitor Team:\n\n\"At 18:46:20.29 UT on 07 July 2023, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 230707B (trigger 710448385/230707782).\nwhich was also detected by Swift/BAT-GUANO (James DeLaunay et al. 2023, GCN 34169)\nand CALET GBM (S. Torii et al. 2023, GCN 34189). The Fermi GBM Final Real-time Localization\nwas reported at GCN 34165.\n\nThe angle from the Fermi LAT boresight is 83 degrees.\n\nThe GBM light curve is long and consists of many peaks with a duration (T90)\nof 99.6 s (50-300 keV). The time-averaged spectrum\nfrom T0-2.3 to T0+117.5 s is best fit by\na Band function with Epeak = 143 +/- 5 keV,\nalpha = -0.63 +/- 0.04, and beta = -2.15 +/- 0.05.\n\nThe event fluence (10-1000 keV) in this time interval is\n(5.4 +/- 0.1)E-05 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+80 s in the 10-1000 keV band is 5.3 +/- 0.3 ph/s/cm^2.\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/\""
}