{
  "bibcode": "2009GCN..8833....1G",
  "body": "C. Gronwall (PSU), S. T. Holland (CRESST/USRA/GSFC),\nC. B. Markwardt (CRESST/GSFC/UMD), D. M. Palmer (LANL),\nM. Stamatikos (NASA/ORAU) and L. Vetere (PSU) report on behalf of the\nSwift Team:\n\nAt 01:32:41 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated the known Anomalous X-Ray Pulasr AXP 1E1547.0-5408\n(trigger=340573).  Swift could not slew to this burst due to Earth\nlimb constraint.  The BAT on-board calculated location is \nRA, Dec 237.705, -54.320 which is \n   RA(J2000) = 15h 50m 49s\n   Dec(J2000) = -54d 19' 10\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve showed the typical short\n(<128 ms) spike of a Soft Gamma Repeater.  The peak count rate\nwas ~30,000 counts/sec (15-350 keV), at ~0 sec after the trigger. \nThere are additional similar bursts visible in the light curve\nat T-40 and T+160 seconds. \n\nIn addition at least 4 similar bursts had been seen by the Fermi\nGBM in the previous hour. \n\nAn additional burst triggered BAT at T+37 minutes (Trigger 340578)\nwhich showed a multiple peak structure with a maximum count\nrate of 170,000 counts/s. \n\nSGR bursts from this source were last seen in early October 2008. \n\nXRT and UVOT will observe this source when it emerges from Earth limb\nconstraint at 02:23 UT.",
  "circularId": 8833,
  "createdOn": 1232591139000,
  "email": "palmer@lanl.gov",
  "subject": "AXP 1E1547.0-5408 activity with SGR bursts",
  "submitter": "David Palmer at LANL  <palmer@lanl.gov>"
}