{
  "bibcode": "2002GCN..1508....1V",
  "body": "GRB020819(=H2275): A Long Burst Localized by the HETE WXM and SXC\n\nR. Vanderspek, J. Villasenor, J.G. Jernigan, G. Monnelly, J. Doty, G. \nCrew, N. Butler, T. Cline, A. Levine, F. Martel, E. Morgan, G. \nPrigozhin, G. Azzibrouck, J. Braga, R. Manchanda, and G. Pizzichini, \non behalf of the HETE Optical-SXC and HETE Operations Teams;\n\nG. Ricker, J-L Atteia, N. Kawai, D. Lamb, and S. Woosley on behalf of \nthe HETE Science Team;\n\nY. Shirasaki, C. Graziani, M. Matsuoka, T. Tamagawa, K. Torii, T. \nSakamoto, A. Yoshida, E. Fenimore, M. Galassi, T. Tavenner, and T. \nDonaghy, on behalf of the HETE WXM Team;\n\nM. Boer, J-F Olive, J-P Dezalay, and K. Hurley on behalf of the HETE \nFREGATE Team;\n\nwrite:\n\nAt 14:57:35.82 UTC (53855.82 s UT) on 19 Aug 2002, the HETE FREGATE, \nWXM, and SXC instruments detected event H2275, a moderately bright, \nlong GRB. In the FREGATE 8-40 keV band, the burst had a duration of \n~20 seconds, and a peak brightness of ~5x Crab. A GCN Burst Alert \nNotice was disseminated 55s after the burst. No real-time optical \ncamera aspect was generated at the time of the burst; thus, no WXM \nreal-time localization could be disseminated.  Ground analysis of the \noptical camera data, and of the WXM data for the burst, produced a \nrefined location which was reported in a GCN Position Notice issued \n98 minutes after the burst. The WXM location can be expressed as a \n90% confidence circle that is 7 arcminutes in radius and is centered \nat\n\nWXM:    RA = 23h 27m 07s, Dec = +6o 21' 50\" (J2000).\n\nGround analysis of the SXC data for the burst also produced a refined \nlocation, which was reported in a GCN Position Notice issued 176 \nminutes after the burst.  The SXC location can be expressed as a 90% \nconfidence circle that is 130 arcseconds in radius and is centered at\n\nSXC:    RA = 23h 27m 24s, Dec = +6o 16' 08\" (J2000).\n\nWe note that the SXC error circle (reported at 17:54:08 UTC) lies \nalmost fully within the subsequently-reported IPN annulus (Hurley et \nal, GCN1507, issued at 19:30:40 UTC). Also, the catalogued X-ray \nsource 1RXS J232705.9+062419 lies within the WXM error box, but is \nnot within the SXC error box.\n\nFurther information (including a light curve and the error boxes) for \nGRB020819 is provided at the following URL:\n\nhttp://space.mit.edu/HETE/Bursts/\n\nThis message is citable.",
  "circularId": 1508,
  "createdOn": 1029797450000,
  "email": "grr@space.mit.edu",
  "subject": "GRB020819(=H2275): A Long Burst Localized by the HETE WXM and SXC",
  "submitter": "George Ricker at MIT  <grr@space.mit.edu>",
  "eventId": "GRB 020819"
}