{
  "bibcode": "2011GCN.11814....1S",
  "body": "B. Sbarufatti (INAF-OAB/IASFPA) report on behalf of the Swift-XTR team\n\nWe have analysed 4.9 ks of XRT data for the Swift/BAT-detected burst:\nGRB110319B (Cummings et al. et al. GCN Circ. 11813), from 27.7 ks to 35.9\nks after the  Swift/BAT trigger. The data are entirely in Photon\nCounting (PC) mode.  An X-ray source is detected within the Swift/BAT\nerror circle. Using 2442 s of PC mode data and 2 UVOT images, we find\nan enhanced XRT position (using the XRT-UVOT alignment and matching\nUVOT field sources to the USNO-B1 catalogue): RA, Dec = 326.09490,\n-56.78240 which is equivalent to:\n\nRA (J2000): 21h 44m 22.77s\nDec(J2000): -56d 46' 56.5\"\n\nwith an uncertainty of 2.4 arcsec (radius, 90% confidence). This\nposition is 53 arcsec from the Swift/BAT position.  The source has a\nmean count rate of 9.4e-03 ct/sec; we cannot determine at the present\ntime whether it is fading.\n\nThis circular is an official product of the Swift XRT team.",
  "circularId": 11814,
  "createdOn": 1300622462000,
  "email": "boris.sbarufatti@brera.inaf.it",
  "subject": "GRB 110319B: Swift-XRT afterglow candidate.",
  "submitter": "Boris Sbarufatti at INAF-OAB/IASFPA  <boris.sbarufatti@brera.inaf.it>",
  "eventId": "GRB 110319B"
}