{
  "format": "text/plain",
  "subject": "GRB 260710A: Fermi GBM Detection",
  "submittedHow": "web",
  "circularId": 45138,
  "createdOn": 1783770047464,
  "submitter": "Marianna Dafčíková at Masaryk University <500025@mail.muni.cz>",
  "body": "M. Dafcikova (MUNI) and C. Meegan (UAH) report on behalf of\nthe Fermi Gamma-ray Burst Monitor Team:\n\n\"At 12:58:43.52 UT on 10 July 2026, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 260710A (trigger 805381128/260710541).\nThe Final real-time localization was reported in GCN 45131.\n\nThe GBM light curve consists of a single peak with a duration (T90)\nof about 1.9 s (50-300 keV). The time-averaged spectrum\nfrom T0-0.16 to T0+1.94 s is best fit by\na power law function with an exponential high-energy cutoff.\nThe power law index is -0.93 +/- 0.03 and the cutoff energy,\nparameterized as Epeak, is 139 +/- 3 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(2.17 +/- 0.09)E-06 erg/cm^2. The 64-ms peak photon flux measured\nstarting from T0+0.38 s in the 10-1000 keV band is 30 +/- 3 ph/s/cm^2.\n\nA Band function fits the spectrum equally well\nwith Epeak= 98 +/- 3 keV, alpha = -0.71 +/- 0.02 and beta = -2.00 +/- 0.07.\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/\"",
  "eventId": "GRB 260710A"
}