{
  "bibcode": "2005GCN..3785....1M",
  "body": "M. Maetou, G. Ricker, J-L. Atteia, N. Kawai, D. Lamb, and S. Woosley,\non behalf of the HETE Science Team;\n     \nM. Arimoto, T. Donaghy, E. Fenimore, M. Galassi, C. Graziani,\nJ. Kotoku, M. Matsuoka, Y. Nakagawa, T. Sakamoto, R. Sato,\nY. Shirasaki, M. Suzuki, T. Tamagawa, K. Tanaka, 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, and K. Hurley, on behalf of the HETE\nFREGATE Team;\n     \nreport:\n\nThe HETE FREGATE, WXM, and SXC instruments detected GRB 050807 \n(=H3889) at 10:58:45 UT (39525 SOD) on 7 August 2005.  The correct \nWXM flight localization was first reported in a GCN Notice issued \nat 10:59:19 UT, which was 34s after the burst trigger.\n\nFurther WXM and SXC ground localizations were reported in a GCN\nNotice issued at 13:47:18 UT.  The final WXM ground localization can\nbe expressed as an 8 by 48 arcminute box (90% confidence) that is\ncentered at\n\nWXM-Ground:  RA = 20h 13m 27s, DEC = -36d 57' 06\" (J2000)\n\nand defined by the corners:\n\nRA = 20h 13m 16s, DEC = -37d 21' 43\"\nRA = 20h 12m 40s, DEC = -37d 18' 54\"\nRA = 20h 13m 38s, DEC = -36d 32' 31\"\nRA = 20h 14m 14s, DEC = -36d 35' 20\".\n\nThe SXC localization could only be localized along one axis,\nand hence yields a 3 by 32 arcminute box that is centered at\n\nSXC-Ground:  RA = 20h 13m 27s, DEC = -36d 56' 12\" (J2000)\n\nand defined by the corners:\n\nRA = 20h 13m 39s, DEC = -36d 40' 23\"\nRA = 20h 13m 00s, DEC = -37d 11' 20\"\nRA = 20h 13m 14s, DEC = -37d 12' 18\"\nRA = 20h 13m 54s, DEC = -36d 40' 52\".\n\nThe burst has a duration T_90 of ~55 seconds in 6-40 keV and 6-80 keV,\nand a T_90 of ~28 seconds in 30-400 keV.  Preliminary spectral analyses\nshow the 2-30 keV fluence of GRB 050807 to be 1.3 x 10-6 ergs cm-2 and\nthe 30-400 keV fluence to be 2.2 x 10-6 ergs cm-2.  Thus, GRB 050807 \nis classified as an \"X-ray-rich\" GRB.\n\nA light curve, skymap, and spectral information for GRB 050807 are\nprovided at the following URL:\n\nhttp://space.mit.edu/HETE/Bursts/GRB050807\n\nThis message may be cited.",
  "circularId": 3785,
  "createdOn": 1123883371000,
  "email": "jsvilla@space.mit.edu",
  "subject": "GRB050807(=H3889): An X-Ray Rich GRB Localized by HETE",
  "submitter": "Joel Villasenor at MIT  <jsvilla@space.mit.edu>",
  "eventId": "GRB 050807"
}