{
  "bibcode": "2020GCN.27934....1M",
  "body": "C. Malacaria (NASA-MSFC/USRA), E. Burns (NASA-GSFC) and C. Meegan (UAH) \nreport on behalf of the Fermi GBM Team:\n\nAt 04:49:38.68 UT on June 06 2020, the Fermi Gamma-Ray Burst Monitor (GBM)\ntriggered and located GRB 200612A (trigger 613630183/200612201),\nwhich was also detected by the Swift (Osborne et al. 2020, GCN 27921)\nand Konus-Wind (Sonbas et al. 2020, GCN 27915; Svinkin et al. 2020, GCN 27922). \nThe GBM on-ground location is consistent with the Swift position.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 50 degrees.\n\nThe GBM light curve shows multiple pulses with a \nduration (T90) of about 88 s (50-300 keV).\nThe GBM light curve also shows evidence of emission preceding the trigger time,\nin agreement with the super-long GRB classification by Konus-Wind.\n\nThe time-averaged spectrum from T0-214 s to T0+89 s is best-fit\nby a power-law with a photon index of -1.80 +/- 0.02.\n\nThe event fluence (10-1000 keV) in this time interval is\n(4.187 +/- 0.109)E-05 erg/cm^2.\nThe 1-sec peak photon flux measured starting from T0+52 s \nin the 10-1000 keV band is 2.8 +/- 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/",
  "circularId": 27934,
  "createdOn": 1592081423000,
  "email": "cmalacaria@usra.edu",
  "subject": "GRB 200612A: Fermi GBM detection",
  "submitter": "Christian Malacaria at NASA-MSFC/USRA  <cmalacaria@usra.edu>",
  "eventId": "GRB 200612A"
}