{
  "bibcode": "1999GCN...263....1A",
  "body": "L. Amati, F. Frontera and N. Masetti (ITESRE/CNR, Bologna), E. Montanari\n(University of Ferrara), E. Costa, M. Feroci and\nL. Piro (IAS/CNR) report on behalf of the BeppoSAX/GRBM Team:\n\n\"The BeppoSAX Gamma Ray Burst Monitor detected GRB990217 (IAUC #7110) as a\nweak, single pulse gamma-ray burst lasting about 25 s. The\ntotal fluence in the 40-700 keV energy range is 4307 +/- 195 counts, \ncorresponding to (1.3 +/- 0.2) x 10E-6 erg cmE-2. The 1 s peak flux in\nthe same band is 146 +/- 43 counts/s, corresponding to \n(1.1 +/- 0.3) x 10E-7 erg cmE-2 sE-1. For a comparison, the peak flux \nin the 2-26 keV range as measured by the BeppoSAX/WFC N. 2 (IAUC #7110) is \nabout 0.5 Crab, that corresponds to 1.64 x 10E-8 erg cmE-2 sE-1.\nThe average photon index inferred from the GRBM data with the assumption\nof a single power-law is 1.52 +/- 0.55. The low statistical quality of the\ndata does not allow to better constrain the spectral model.\"\n\nThis message is citeable.",
  "circularId": 263,
  "createdOn": 919713361000,
  "email": "filippo@tesre.bo.cnr.it",
  "subject": "GRB990217: BeppoSAX/GRBM data",
  "submitter": "Filippo Frontera at ITESRE CNR  <filippo@tesre.bo.cnr.it>",
  "eventId": "GRB 990217"
}