{
  "bibcode": "2004GCN..2712....1Y",
  "body": "GRB040916 (= H3558):  A Long XRF Localized by HETE\n\nT. Yamazaki, G. Ricker, J-L. Atteia, N. Kawai, D. Lamb, and S. Woosley, \non 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, Y. Urata, Y. Yamamoto, and A. Yoshida, on behalf of the \nHETE WXM Team; \n\nN. Butler, G. Crew, J. Doty, A. Dullighan, 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\nC. Barraud, M. Boer, J-F Olive, J-P Dezalay, and K. Hurley, on behalf \nof the HETE FREGATE Team; \n\nreport:\n\nAt 00:03:30 UT (209 SOD) on 16 September 2004, the WXM instrument\non HETE detected GRB040916 (= H3558), a long, two-peaked XRF.  The \nburst has been localized to a circle of 18' radius centered on\n\n  RA = 23h 01m 44s, Dec = -5d 37' 43\" (J2000)\n\nThe burst consists of two peaks separated by ~250s, each ~100s in \nduration.  No formal spectral analysis has been performed using WXM\ndata, but the dearth of counts in bands > 10 keV in either peak is a \nstrong indication that GRB040916 is an XRF.\n\nWe anticipate providing additional spectral information from this \nunusual event in a subsequent GCN Circular.\n\nThis message may be cited.",
  "circularId": 2712,
  "createdOn": 1095303711000,
  "email": "roland@space.mit.edu",
  "subject": "GRB040916 (= H3558):  A Long XRF Localized by HETE",
  "submitter": "Roland Vanderspek at MIT  <roland@space.mit.edu>",
  "eventId": "GRB 040916"
}