{
  "bibcode": "2005GCN..3180....1P",
  "body": "A. Parsons (GSFC), S. Barthelmy (GSFC), J. Cummings (GSFC/NRC),\n  E. Fenimore (LANL), N. Gehrels (GSFC), D. Hullinger (UMD), S. \nHunsberger (PSU),\n  H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD),  D. Palmer (LANL),\n  T. Sakamoto (GSFC/NRC), G. Sato (ISAS), M. Suzuki (Saitama),\n  J. Tueller (GSFC) D. Burrows, J. Kennea, J. Nousek (PSU), G. \nChincarini,\n  P. Romano (INAF-OAB)\n  on behalf of the Swift team:\n\n  At 15:58:48.40 UT Swift-BAT triggered on burst GRB 050406 (trigger \n113872).\nThe BAT-derived position is RA,Dec= 34.428, -50.178 (J2000). \nSignificant emission\nhas been detected for at least 3 sec with possible low significance \npeaks over\nan additional 30 sec.  The peak count rate was 800 cnts/sec. The source \nwas\ndetected at 15 degrees off the bore-site and thus is in the fully-coded \nfield-of-view.\n\nSwift slewed promptly and the UVOT imaged the field at the end of the \nslew and did\nnot find a bright optical source in the 8 arcmin square binned field of \nview centered\non the BAT position.\n\nThe XRT also imaged the field promptly and did not find a bright X-ray \nsource within\nthe field of view.  Based on previous experience, this lack of prompt \nx-ray afterglow\nsuggests either that this trigger is not a GRB, or that it is a very \ninteresting and\nunusual GRB.  The BAT rate trigger and image are significant enough to \nlean\ntoward an interpretation of an unusual GRB.",
  "circularId": 3180,
  "createdOn": 1112807057000,
  "email": "parsons@milkyway.gsfc.nasa.gov",
  "subject": "Swift-BAT detection of GRB 050406",
  "submitter": "Ann M. Parsons at NASA/GSFC/Swift  <parsons@milkyway.gsfc.nasa.gov>",
  "eventId": "GRB 050406"
}