{
  "bibcode": "2012GCN.13401....1G",
  "body": "N. Gehrels (NASA/GSFC), C. Gronwall (PSU),\nA. Y. Lien (NASA/GSFC/ORAU), O. M. Littlejohns (U Leicester),\nK. L. Page (U Leicester), D. M. Palmer (LANL),\nB. Sbarufatti (INAF-OAB/PSU) and B.-B. Zhang (PSU) report on behalf of\nthe Swift Team:\n\nAt 03:17:26 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated a possible near-threshold image peak (trigger= 525554).  Swift\nslewed immediately to the location.\nThe BAT on-board calculated location is\nRA, Dec 144.681, -15.992, which is\n  RA(J2000)  =  09h 38m 43s\n  Dec(J2000) = -15h 59' 31\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including\nsystematic uncertainty).  As it typical with image trigger\nthe TDRSS lightcurve does not show anything significant.\n\nThe XRT began observing the field at 03:19:28.6 UT, 122.1 seconds after\nthe BAT trigger. No source was detected in 285 s of promptly downlinked\ndata. We are waiting for the full dataset to detect and localise the\nXRT counterpart.\n\nDue to the marginal nature of the BAT trigger, and\nthe lack of detection of a source with XRT, we believe\nthat this trigger is probably not an astrophysical source.",
  "circularId": 13401,
  "createdOn": 1341200757000,
  "email": "palmer@lanl.gov",
  "subject": "Swift Trigger 525554 is probably not a GRB",
  "submitter": "David Palmer at LANL  <palmer@lanl.gov>"
}