{
  "bibcode": "2008GCN..8661....1C",
  "body": "A. Copete, J. Grindlay (Harvard)\nS. Barthelmy, C. Markwardt, N. Gehrels (NASA/GSFC)\n\nWe report the detection of a likely GRB candidate by the BAT Slew  \nSurvey (BATSS) in the slew that started on 12/11/08 at 06:15:02 UT and  \nlasted 121 sec. The ground-calculated position is RA, Dec = 168.231,  \n+53.845 deg, which is\n   RA (J2000) =  11h 12m 55s\n   Dec(J2000) = +53d 50' 43\"\nwith an uncertainty of 3.04 arcmin (90% confidence, including  \nsystematics). The detection was triggered by simultaneous detections  \nof 7.4 sigma and 8.3 sigma from imaging in the overlapping energy  \nbands of 15-50 keV and 15-150 keV, respectively. The burst mask-tagged  \nlightcurve in the 15-150keV band shows two possible broad peaks in its  \nemission profile that span the entire 102 sec that the source remains  \nwithin the BAT field-of-view, starting at T+18 sec, and peaking T+34  \nand T+69 sec, suggesting that this is possibly the tail end of the  \nprompt emission of a burst at that location.\n\nThe time-averaged spectrum over the 102 sec of exposure of the source  \nis best fit by a simple power law with photon index 1.73, and the  \nfluence in the 15-150 keV band is 6.1 x 10^-7 erg/cm^2\n\nA follow-up Swift ToO observation has been scheduled to begin on  \n12/12/08 at 04:51 UT, 22.6 hours after the burst.\nOptical/IR observations of this potential GRB are encouraged  \nimmediately, as it is well positioned for northern hemisphere observers.",
  "circularId": 8661,
  "createdOn": 1229054811000,
  "email": "acopete@head.cfa.harvard.edu",
  "subject": "GRB 081211B(?): Possible burst detection from Swift-BAT slew data",
  "submitter": "Antonio Copete at Harvard U  <acopete@head.cfa.harvard.edu>",
  "eventId": "GRB 081211B"
}