{
  "bibcode": "2015GCN.18225....1S",
  "body": "B. Sbarufatti (INAF-OAB/PSU), S. D. Barthelmy (GSFC),\nJ. A. Kennea (PSU), H. A. Krimm (CRESST/GSFC/USRA) and\nT. N. Ukwatta (LANL) report on behalf of the Swift Team:\n\nAt 15:26:35 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 150901A (trigger=654042).  Swift did not slew due Sun observing\nconstraint.  The BAT on-board calculated location is \nRA, Dec 183.586, +25.038, which is \n   RA(J2000)  =  12h 14m 21s\n   Dec(J2000) = +25d 02' 19\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve showed a single peak\nwith a duration of about 25 sec.  The peak count rate\nwas ~700 counts/sec (15-350 keV), at ~1 sec after the trigger. \n\nDue to a Sun observing constraint, Swift cannot slew to the BAT\nposition until 00:01 UT on 2015 October 28. There will thus be no XRT\nor UVOT data for this trigger before this time. \n\nBurst Advocate for this burst is B. Sbarufatti (boris.sbarufatti AT brera.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": 18225,
  "createdOn": 1441122023000,
  "email": "scott@milkyway.gsfc.nasa.gov",
  "subject": "GRB 150901A: Swift detection of a burst",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@milkyway.gsfc.nasa.gov>",
  "eventId": "GRB 150901A"
}