{
  "bibcode": "2021GCN.30499....1L",
  "body": "S. Lesage (UAH), B. Hristov (UAH) and C. Meegan (UAH) report on behalf of\nthe Fermi Gamma-ray Burst Monitor Team:\n\nAt 14:46:07 UT on 23 July 2021, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 210723A (trigger 648744372/210723615).\nwhich was also detected by Swift BAT (T. Sbarrato et al. 2021, GCN 30485)\nThe Fermi GBM on-ground location is consistent with the Swift BAT position.\n\nThe angle from the Fermi LAT boresight is 94 degrees.\n\nThe GBM light curve consists of a single emission episode with a duration\n(T90)\nof about 43 s (10-1000 keV). The time-averaged spectrum\nfrom T0+1.5 to T0+36.4 s is best fit by\na power law function with an exponential high-energy cutoff.\nThe power law index is -0.67 +/- 0.07 and the cutoff energy,\nparameterized as Epeak, is 113 +/- 5 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(7.6 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+1 s in the 10-1000 keV band is 4.7 +/- 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\nPage:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/\"",
  "circularId": 30499,
  "createdOn": 1627176207000,
  "email": "sp0076@uah.edu",
  "subject": "GRB 210723A: Fermi GBM Observation",
  "submitter": "Suraj Poolakkil at UAH  <sp0076@uah.edu>",
  "eventId": "GRB 210723A"
}