{
  "bibcode": "2020GCN.28843....1B",
  "body": "E. Bissaldi (Politecnico and INFN Bari) and S. Lesage (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\"At 05:09:32.233 UT on 5 November 2020, the Fermi Gamma-Ray Burst Monitor (GBM)\ntriggered and located GRB 201105B (trigger 626245777 / 201105215).\nThe on-ground calculated location, using the GBM trigger data,\nis RA = 244.5, DEC = 16.0 (J2000 degrees, equivalent\nto 16h 18m, -16d 02'), with an uncertainty of 1.0 degrees\n(radius, 1-sigma containment, statistical only; there is additionally a \nsystematic error which we have characterized as a mixture of two Gaussians,\none with a radius of 1.8 degrees (52% contribution) and one with a radius \nof 4.1 degrees (47% contribution) [A. Goldstein et al. 2020, ApJ, 895, 1] ).\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 92 degrees.\n\nThe GBM light curve shows a FRED emission episode\nwith a duration (T90) of about 17 s (50-300 keV).\nThe time-averaged spectrum from T0 to T0+23 s is\nbest fit by a Band function with Epeak = 512 +/- 21 keV,\nalpha = -0.95 +/- 0.01, and beta = -2.35 +/- 0.09.\n\nThe event fluence (10-1000 keV) in this time interval is\n(5.13 +/- 0.05)E-05 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+2.7 s in the 10-1000 keV band\nis 28.5 +/- 0.5 ph/s/cm^2.\n\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/\"",
  "circularId": 28843,
  "createdOn": 1604620462000,
  "email": "cmalacaria@usra.edu",
  "subject": "GRB 201105B: Fermi GBM observation",
  "submitter": "Christian Malacaria at NASA-MSFC/USRA  <cmalacaria@usra.edu>",
  "eventId": "GRB 201105B"
}