{
  "eventId": "GRB 240606A",
  "submittedHow": "email",
  "submitter": "Mike Siegel at PSU/Swift MOC <siegel@swift.psu.edu>",
  "subject": "Swift Trigger 1235109: a possible GRB 240606A",
  "bibcode": "2024GCN.36626....1D",
  "createdOn": 1717646854534,
  "body": "\nA. D'Ai (INAF-IASFPA), R. Gupta (NASA/GSFC), A. Y. Lien (U Tampa) and\nM. H. Siegel (PSU) report on behalf of the Neil Gehrels Swift\nObservatory Team:\n\nAt 03:33:46 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated a possible GRB 240606A (trigger=1235109). \nSwift slewed immediately to the burst. \nThe BAT on-board calculated location is \nRA, Dec 12.125, -19.747 which is \n   RA(J2000) = 00h 48m 30s\n   Dec(J2000) = -19d 44' 49\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve does not show any\nobvious structure. \n\nThe XRT began observing the field at 03:35:56.7 UT, 129.8 seconds after\nthe BAT trigger. No source was detected in 1.7 ks of promptly\ndownlinked data. We are waiting for the full dataset to detect and\nlocalise the XRT counterpart. \n\nUVOT data are unavailable at this time. \n\nDue to the marginal significance of the BAT image (6.54 sigma), \nand the lack of an observed counterpart in the XRT data, \nthis trigger may be due to a noise fluctuation. Further ground\ndata are required to determine the nature of this trigger. \n\nBurst Advocate for this burst is A. D'Ai (antonino.dai AT inaf.it). \nPlease contact the BA by email if you require additional information\nregarding Swift followup of this burst. In extremely urgent cases, after\ntrying the Burst Advocate, you can contact the Swift PI by phone (see\nSwift TOO web site for information: http://www.swift.psu.edu/)\n\n",
  "circularId": 36626
}