{
  "bibcode": "2001GCN..1104....1M",
  "body": "E. Montanari, C. Guidorzi and F. Frontera, Physics Dept, University of\nFerrara; L. Amati, ITESRE, CNR, Bologna, on behalf of the GRBM BeppoSAX\nteam, report:\n\nThe gamma-ray burst GRB010223 reported by the HETE team (GCN/HETE_POSITION\nH1764, GCN 1102) was also detected by the BeppoSAX GRBM (units 1 and 4)\nwith onset at 09:24:29 UT of September 23, 2001. The event was classified\n(GCN 1102) as short (<1 s) GRB. However, on the basis of the GRBM data, in\naddition to the double peak structure reported by HETE, the 40-700 keV\ntime profile shows another peak starting 2 s after the burst onset, and\nlasting ~2 s. The time duration in terms of T90 is thus found to be ~4 s.\nThe FWHM of the first two peaks also detected by HETE are estimated about\n200 ms and 350 ms, respectively. The total counts collected during the\nevent are 2680, with 540 cts in the first peak, 1600 cts in the second one\nand 540 cts in the last peak.\n\nA preliminary spectral analysis shows that the total fluence in the 80-600\nkeV range is about 2.5 x 10-6 ergs cm-2. The spectral hardness, as\nestimated from the ratio between the 100-700 keV counts and those in the\n40-100 keV band, looks softer than typical short bursts. \n\nFrom GRBM data we derived the following rough position: R.A. = 312 deg,\nDecl.= +17 deg, with an error radius of 25 deg (inclusive of 10 deg\nsystematics).\n\nIn summary, GRBM data suggest that GRB010923 is more likely to\nbe an \"intermediate\" burst, both for its time duration and its spectral\nhardness. \n\nThis message can be cited.",
  "circularId": 1104,
  "createdOn": 1001962866000,
  "email": "guidorzi@fe.infn.it",
  "subject": "GRB010923 as seen by BeppoSAX GRBM",
  "submitter": "Cristiano Guidorzi at Phys.Dept, U.of Ferrara(Italy)  <guidorzi@fe.infn.it>",
  "eventId": "GRB 010923"
}