{
  "bibcode": "2016GCN.19006....1R",
  "body": "O.J. Roberts (UCD) and C. Meegan (UAH) report on\nbehalf of the Fermi GBM Team:\n\n\"At 10:19:12.43 UT on 06 February 2016, the Fermi\nGamma-Ray Burst Monitor triggered and located GRB\n160206B (trigger 476446756 / 160206430). A list of\noptical candidates were observed by iPTF within the\n2-sigma statistical+systematic region of the final\non-ground calculated location (Singer et al., GCN 18995).\nThe on-ground calculated location, using the GBM trigger\ndata, is RA = 184.3, DEC = 52.4 (J2000 degrees,\nequivalent to 12h 17m, 52d 24'), with an uncertainty of\n4.2 degrees (radius, 1-sigma containment, statistical only;\nthere is additionally a systematic error which we have\ncharacterized as a core-plus-tail model, with 90% of GRBs\nhaving a 3.7 deg error and a small tail suffering a larger\nthan 10 deg systematic error.\n[Connaughton et al. 2015, ApJS, 216, 32]).\n\nThe angle from the Fermi LAT boresight is about 83 degrees.\n\nThe GBM light curve consists of a FRED-like pulse with a\nduration (T90) of about 21.5 s (50-300 keV). The\ntime-averaged spectrum from T0-4.9 s to T0+16.6 s is best\nfit by a power law function with an exponential high-energy\ncutoff. The power law index is -0.93 +/- 0.10 and the cutoff\nenergy, parameterized as Epeak, is 356.0 +/- 69.5 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(4.6 +/- 0.4)E-06 erg/cm^2. The 1.024-sec peak photon flux\nmeasured starting from T0+3.4 s in the 10-1000 keV band is\n3.0 +/- 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.\"",
  "circularId": 19006,
  "createdOn": 1455037678000,
  "email": "oliver.roberts@ucd.ie",
  "subject": "GRB 160206B: Fermi GBM detection",
  "submitter": "Oliver Roberts at UCD/Fermi  <oliver.roberts@ucd.ie>",
  "eventId": "GRB 160206B"
}