{
  "bibcode": "2005GCN..3613....1L",
  "body": "A. Levan, A. Beardmore, K. Page, J. Osborne, E. Rol (U. Leicester)\nS. Barthelmy, J. Cannizzo (GSFC-UMBC), L. Cominsky (Sonoma State U.),\nH. Krimm (GSFC), C. Markwardt (GSFC/UMD), D. Palmer (LANL), T. Sakamoto\n(GSFC), C. Gronwall, D. Burrows, P. Roming, J. Kennea (PSU) and N. Gehrels\n(GSFC) report for the Swift team.\n\nAt 22:40:32 UT, Swift-BAT triggered (trigger=145994) and located on-board\na source.  The flight-determined location is RA,Dec 169.694, -15.528 {+11h\n18m 47s, -15d 31' 39\"} (J2000) with an uncertainty of 3 arcmin (radius,\n90% containment, stat+sys). The spacecraft was on target at approximately\n150 seconds.  This was a very weak 64-sec image-trigger detection right at\nthe image-trigger threshold (10.1 sigma). There are no \"peaks\" in the BAT\nlightcurve, which is consistent with a long low-amplitude event, and that\nit was an image trigger and not a rate trigger. At this early stage in the\nanalysis, we can not distinguish between a long GRB and a hard X-ray\ntransient.  However, we do think that it is from a real astrophysical\nsource.\n\nThe spacecraft slewed immediately and the XRT began observing the burst\nat 22:43:00.6 UT (151 s after the BAT trigger).  XRT found a\nbright, uncatalogued, fading X-ray source. The position, calculated with\nxrtcentroid on the TDRSS postage stamp image, is:\n\nRA:     11h 18m 47.9s (J2000),\nDec:   -15d 32' 55.5\" (J2000).\n\nThis position is 76.5 arcseconds from the BAT position.  The estimated\nuncertainty is 6 arcseconds radius (90% containment).\n\nThe Swift Ultra Violet/Optical Telescope (UVOT) observations began at\n22:43:03 UT, 151 seconds after the BAT trigger. The first data taken after\nthe spacecraft settled was a 100 seconds exposure using the V filter with\nthe midpoint of the observation at 201 seconds after the BAT trigger.\nThere is no new source at the XRT position.",
  "circularId": 3613,
  "createdOn": 1121387137000,
  "email": "anl@star.le.ac.uk",
  "subject": "Swift detection of a long transient (GRB 050714B?)",
  "submitter": "Andrew Levan at U.of Leicester  <anl@star.le.ac.uk>",
  "eventId": "GRB 050714B"
}