{
  "bibcode": "2004GCN..2588....1D",
  "body": "GRB040511 (=H3218):  A Long GRB Localized by HETE WXM and SXC\n\nA. Dullighan, G. Ricker, J-L. Atteia, N. Kawai, D. Lamb,\nand S. Woosley, on behalf of the HETE Science Team;\n    \nT. Donaghy, E. Fenimore, M. Galassi, C. Graziani, M. Matsuoka,\nY. Nakagawa, T. Sakamoto, R. Sato, Y. Shirasaki, M. Suzuki,\nT. Tamagawa, K. Torii, Y. Urata, T. Yamazaki, Y. Yamamoto,\nand A. Yoshida, on behalf of the HETE WXM Team;\n\nN. Butler, G. Crew, J. Doty, G. Prigozhin, R. Vanderspek,\nJ. Villasenor, J. G. Jernigan, A. Levine, G. Azzibrouck, J. Braga,\nR. Manchanda, and G. Pizzichini, on behalf of the HETE Operations and\nHETE Optical-SXC Teams;\n\nM. Boer, J-F Olive, J-P Dezalay, C. Barraud, and K. Hurley, on behalf\nof the HETE FREGATE Team;\n\nreport:\n\nAt 13:01:46 UTC (46906 s UT) on 11 May 2004, the HETE FREGATE, WXM, and \nSXC instruments detected event GRB040511 (=H3218), a long, bright GRB.\n\nThe burst triggered FREGATE in the 30-400 keV energy band.  A flight\nlocalization was distributed automatically 39 minutes after the trigger:\nthe long delay was due to dropouts in the HETE Burst Alert Network.\nSubsequent analysis of the full data set revealed that the prompt WXM\nY location was in error:  the correct WXM localization is a box with \ncorners located at\n\n  RA = 14h 47m 30.2s, Dec = -44d 15m 00s\n  RA = 14h 48m 43.2s, Dec = -44d 11m 42s\n  RA = 14h 49m 09.1s, Dec = -44d 41m 13s\n  RA = 14h 47m 55.9s, Dec = -44d 44m 34s (J2000).\n\nAnalysis of the SXC data reveal a 90% confidence  error region of \n80\" radius (5.6 sq. arcmin area) centered at:\n\n  SXC-Ground:  RA = 14h 47m 50s, Dec = -44d 15' 04\" (J2000).\n\nPreliminary analyses of the burst spectrum give a value of Epeak of\n~100 keV and a 30-400 keV fluence of ~1e-5 erg/cm2, with a SNR of 32.2 \nand a duration (t90) of 38 s.\n\nDetails of this burst can be found on the HETE web page at\nhttp://space.mit.edu/HETE/Bursts/GRB040511.\n\nThis message can be cited.",
  "circularId": 2588,
  "createdOn": 1084295276000,
  "email": "roland@space.mit.edu",
  "subject": "GRB040511 (=H3218):  A Long GRB Localized by HETE WXM and SXC",
  "submitter": "Roland Vanderspek at MIT  <roland@space.mit.edu>",
  "eventId": "GRB 040511"
}