{
  "bibcode": "2025GCN.39877....1P",
  "createdOn": 1743063069148,
  "submittedHow": "email",
  "eventId": "GRB 250327A",
  "submitter": "Jamie Kennea at Penn State <jak51@psu.edu>",
  "body": "T. M. Parsotan (GSFC), J. J. DeLaunay (PSU), R. Gupta (NASA GSFC),\nJ. A. Kennea (PSU) and K. L. Page (U Leicester) report on behalf of\nthe Neil Gehrels Swift Observatory Team:\n\nAt 07:30:04 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 250327A (trigger=1299088).  Swift slewed immediately to the burst.\nThe BAT on-board calculated location is \nRA, Dec 248.197, +61.595 which is \n   RA(J2000) = 16h 32m 47s\n   Dec(J2000) = +61d 35' 43\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve showed a complex\nstructure with a duration of about 40 sec.  The peak count rate\nwas ~1648 counts/sec (15-350 keV), at ~3 sec after the trigger.\n\nDue to an observing constraint, Swift did not get data immediately. We will \nreport on XRT data in a later GCN.\n\nBurst Advocate for this burst is T. M. Parsotan (tyler.parsotan AT nasa.gov).\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": 39877,
  "subject": "GRB 250327A: Swift detection of a burst"
}