{
  "bibcode": "2020GCN.28646....1W",
  "body": "J. Wood (NASA/MSFC) and C. Meegan (UAH) report on behalf of the Fermi GBM Team:\n\n\"At 00:27:49.59 UT on 16 October 2020, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 201016A (trigger 624500874 / 201016019).\n\nThe on-ground calculated location, using the GBM trigger data,\nis RA = 174.3, DEC = -2.0 (J2000 degrees, equivalent\nto 11h 37m, -2d 00'), 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 93 degrees.\n\nThe GBM light curve consists of multiple pulses with a duration (T90)\nof about 3 s (50-300 keV). The time-averaged spectrum from\nT0+6.3 s to T0+9.4 s is best fit by a Band function with Epeak = 181 +/- 2 keV,\nalpha = -0.42 +/- 0.01, and beta = -2.75 +/- 0.03\n\nThe event fluence (10-1000 keV) in this time interval is\n(9.06 +/- 0.04)E-05 erg/cm^2. The 1.024-sec peak photon flux measured\nstarting from T0+6.8 s in the 10-1000 keV band\nis 267.4 +/- 1.1 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": 28646,
  "createdOn": 1602825825000,
  "email": "joshua.r.wood@nasa.gov",
  "subject": "GRB 201016A: Fermi GBM detection",
  "submitter": "Joshua Wood at MSFC/Fermi-GBM  <joshua.r.wood@nasa.gov>",
  "eventId": "GRB 201016A"
}