{
  "createdOn": 1781474268424,
  "submitter": "Eva M. Palafox at INAOE <eva.palafox@gmail.com>",
  "eventId": "GRB 260614B",
  "body": "E. Palafox (INAOE-Mexico) reports on behalf of the Fermi Gamma-ray Burst Monitor Team:\n\n\"At 13:49:53.52 UT on 14 June 2026, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 260614B (trigger 803137798/260614576).\nwhich was also detected by SVOM/ECLAIRs (Godet et al. 2026, GCN 44938).\nThe Fermi GBM on-ground location is consistent with the SVOM/ECLAIRs position.\n\nThe angle from the Fermi LAT boresight is 31 degrees.\n\nThe GBM light curve consists of a single emission episode with a duration (T90)\nof about 30 s (50-300 keV). The time-averaged spectrum\nfrom T0-13 to T0+34 s is best fit by\na power law function with an exponential high-energy cutoff.\nThe power law index is -0.78 +/- 0.03 and the cutoff energy,\nparameterized as Epeak, is 510 +/- 10 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(2.20 +/- 0.04)E-05 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+13 s in the 10-1000 keV band is 5.7 +/- 0.2 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/\"",
  "subject": "GRB 260614B: Fermi GBM Observation",
  "submittedHow": "web",
  "format": "text/plain",
  "circularId": 44942
}