{
  "bibcode": "2001GCN..1068....1R",
  "body": "SGR1806-20: Localization by HETE\n\nG. Ricker, D. Lamb, and S. Woosley on behalf of the HETE Science Team;\n\nR. Vanderspek, G. Crew, J. Doty, G. Monnelly, J. Villasenor; N. \nButler, T. Cline, J.G. Jernigan, A. Levine, F. Martel, G. Pizzichini, \nand G. Prigozhin, on behalf of the HETE Operations and HETE \nOptical-SXC Teams;\n\nN. Kawai, M. Matsuoka, Y. Shirasaki, T. Tamagawa, A. Yoshida, E. \nFenimore, M. Galassi, and  C. Graziani, on behalf of the HETE WXM \nTeam;\n\nJ-L Atteia, M. Boer, J-F Olive, J-P Dezalay, and K. Hurley on behalf \nof the HETE FREGATE Team;\n\nwrite:\n\nAt 19:42:49 UT on 18 June, the HETE FREGATE and WXM instruments \ndetected and localized burst emission from the vicinity of \nSGR1806-20, a soft gamma-ray repeater. This event may indicate the \nonset of a new period of activity by this source. The coordinates \n(J2000) of the burst source were:\n\nR.A. = 272.0265 deg.\n\nDec. = -20.2743 deg\n\nThe error circle for the localization is 36 arcmin in radius. \nSGR1806-20 lies 11.8 arcmin from the HETE position. [Another galactic \nX-ray source, GX9+1, lies 100 arcmin from the HETE position.]\n\nThe burst duration in the 8-40 keV band was <300 ms. A total of 864 \ncounts were detected during that interval, corresponding to a flux \nof >10 times Crab.\n\nFollow-up observations of this transient are encouraged.\n\nAdditional information on this burst detection (including light \ncurves), as well as for the HETE mission, will be available at:\n\nhttp://space.mit.edu/HETE/\n\nAcronyms:\nHETE=High Energy Transient Explorer\nFREGATE=French Gamma Ray Telescope\nWXM=Wide Field X-ray Monitor\nSXC=Soft X-ray Camera\n\nThis message is citeable.",
  "circularId": 1068,
  "createdOn": 992900745000,
  "email": "grr@space.mit.edu",
  "subject": "SGR1806-20: Localization by HETE",
  "submitter": "George Ricker at MIT  <grr@space.mit.edu>"
}