{
  "bibcode": "2009GCN..9585....1M",
  "body": "V. Mangano (INAF-IASFPA), S. D. Barthelmy (GSFC),\nW. H. Baumgartner (GSFC/UMBC), D. N. Burrows (PSU),\nN. Gehrels (NASA/GSFC), E. A. Hoversten (PSU), J. A. Kennea (PSU),\nD. M. Palmer (LANL), B. Sbarufatti (INAF-IASFPA),\nM. Stamatikos (NASA/ORAU) and M. A. Stark (PSU) report on behalf of\nthe Swift Team:\n\nAt 21:20:12 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 090628 (trigger=355942).  Swift could not immediately \nslew to the burst.  The BAT on-board calculated location is \nRA, Dec 237.050, -15.977 which is \n   RA(J2000)  =  15h 48m 12s\n   Dec(J2000) = -15d 58' 36\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve showed a single peak\nstructure with a duration of about 5 sec.  The peak count rate\nwas ~2000 counts/sec (15-350 keV), at ~0 sec after the trigger. \n\nDue to an Earth limb constraint, a prompt slew was not possible.  \nSwift will execute a delayed slew after 2656 s.  No XRT or UVOT \ndata will be available until the slew occurs. \n\nThe series GCN Notices for this burst are corrupted \nwith many (but not all) bogus values.  For the moment,\nplease disregard the original series of notices.  We may\nissue Updated position notices when the information becomes available. \n\nBurst Advocate for this burst is V. Mangano (vanessa AT ifc.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/too.html.)",
  "circularId": 9585,
  "createdOn": 1246225322000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 090628: Swift detection of a burst",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 090628"
}