{
  "circularId": 35863,
  "bibcode": "2024GCN.35863....1A",
  "createdOn": 1709577552042,
  "subject": "Swift Trigger 1218645: Another detection of Swift J151857.0-572147",
  "submitter": "Jamie Kennea at Penn State <jak51@psu.edu>",
  "submittedHow": "email",
  "body": "\nE. Ambrosi (INAF-IASFPA), J. A. Kennea (PSU), A. Y. Lien (U Tampa),\nM. J. Moss (GSFC), K. L. Page (U Leicester), M. H. Siegel (PSU) and\nM. A. Williams (PSU) report on behalf of the Neil Gehrels Swift\nObservatory Team:\n\nAt 18:26:54 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated Swift J151857.0-572147 (trigger=1218645).  Swift slewed \nimmediately to the source. \nThe BAT on-board calculated location is \nRA, Dec 229.720, -57.363 which is \n   RA(J2000) = 15h 18m 53s\n   Dec(J2000) = -57d 21' 47\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty). \n\nThis is the third BAT trigger on Swift J151857.0-572147 (GCN #35849, \nGCN #35853, GCN #35858). Repeated triggers indicate that the source\nis continuing to brighten. \n\n"
}