{
  "bibcode": "2002GCN..1262....1R",
  "body": "GRB020305 (=H1939): Localization of a GRB by HETE\n\nG. Ricker, J-L Atteia, N. Kawai, D. Lamb, and S. Woosley on behalf of\nthe HETE Science Team;\n\nJ. Villasenor, R. Vanderspek, G. Crew, J. Doty, G. Monnelly, N. Butler,\nT. Cline, J.G. Jernigan, A. Levine, F. Martel, E. Morgan, G.\nPrigozhin, J. Braga, R. Manchanda, and G. Pizzichini, on behalf of\nthe HETE Operations and HETE Optical-SXC Teams;\n\nM. Matsuoka, Y. Shirasaki, T. Tamagawa, K. Torii, T. Sakamoto,\nA. Yoshida, E. Fenimore, M. Galassi, T. Tavenner, T. Donaghy, and\nC. Graziani, on behalf of the HETE WXM Team;\n\nM. Boer, J-F Olive, J-P Dezalay, P. Lestrade, and K. Hurley on behalf\nof the HETE FREGATE Team;\n\nwrite:\n\nAt 11:55:25.05 UTC (42925.05 s UT) on 5 March 2002, the HETE FREGATE\nand WXM instruments detected a GRB.  The burst, H1939, was promptly\nreported as a GCN Alert Notice within 42 seconds of the detection time.\nThe main part of the burst began at 11:59:04 UTC (43144 s UT), just as\nthe spacecraft reached the dawn terminator and the WXM high voltage was\nturning off.  Accurate aspect was derived for H1939 from a full data\nset on the ground. Ground analysis produced a location which can be\nexpressed as a circle with a 90% confidence radius of 25 arcminutes\ncentered at\n\nRA = +12h 43m 03s, Dec = -14d 33' 06\" (J2000)\n\nThis location was reported in a GCN Alert Notice (issued at 5 Mar 2002\n21:51:55 UT)\n\nGRB020305 (=H1939) has a duration in the FREGATE 32-400 keV band of\nT90 = 252 seconds.  In the 8-40 keV FREGATE band, the peak flux in 3 s\nwas approximately 7 x 10-8 ergs cm-2 s-1 (i.e., approximately\n2.5 x Crab flux).  No duration or peak flux can be derived in the\n2-25 keV WXM band because only the first 12 seconds of the main (second)\npeak were observed by the WXM before high voltage turnoff.  The\nstatistical significance of the burst in the 2-25 keV WXM band in this\n12-second interval was 5 sigma.\n\nFurther information (including light curves) on GRB020305 is provided at\nthe following URL:\n\nhttp://space.mit.edu/HETE/Bursts/\n\n\nThis message is citable.",
  "circularId": 1262,
  "createdOn": 1015440356000,
  "email": "lamb@oddjob.uchicago.edu",
  "subject": "GRB020305 (=H1939): Localization of a GRB by HETE",
  "submitter": "Don Lamb at U.Chicago  <lamb@oddjob.uchicago.edu>",
  "eventId": "GRB 020305"
}