{
  "bibcode": "2009GCN..9945....1G",
  "body": "D. Grupe (PSU), J. R. Cummings (NASA/UMBC), C. Gronwall (PSU),\nC. Guidorzi (U Ferrara), C. B. Markwardt (CRESST/GSFC/UMD),\nP. T. O'Brien (U Leicester), K. L. Page (U Leicester),\nD. M. Palmer (LANL), P. Romano (INAF-IASFPA), M. H. Siegel (PSU),\nT. N. Ukwatta (GSFC/GWU) and L. Vetere (PSU) report on behalf of the\nSwift Team:\n\nAt 10:07:16 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 090927 (trigger=370846). The BAT on-board calculated \nlocation is RA, Dec 343.953, -70.978 which is \n   RA(J2000) = 22h 55m 49s\n   Dec(J2000) = -70d 58' 38\"\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 1.5 sec.  The peak count rate\nwas ~4000 counts/sec (15-350 keV), at ~1 sec after the trigger. \n\nDue to an observing constraint, Swift will not slew until \nT0+33.8 minutes. There will be no XRT or UVOT data until\nthis time. \n\nBurst Advocate for this burst is D. Grupe (grupe AT astro.psu.edu). \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": 9945,
  "createdOn": 1254046788000,
  "email": "palmer@lanl.gov",
  "subject": "GRB 090927: Swift detection of a short burst",
  "submitter": "David Palmer at LANL  <palmer@lanl.gov>",
  "eventId": "GRB 090927"
}