{
  "bibcode": "2008GCN..8605....1S",
  "body": "B. Sbarufatti, V. La Parola, V. Mangano (INAF-IASF Pa) report on  \nbehalf of the Swift-XRT team:\n\nSwift began observing the field of the Swift BAT Slew Survey (BATSS)  \nGRB 081203B (Copete et al., GCN Circ. 8600, 8602) 16.7 ks after the  \ntrigger. Using 1419 s of XRT Photon Counting mode data we detect a  \nsingle uncatalogued source inside the BAT error circle. Using the XRT  \ndata and 2 UVOT images, we find an astrometrically corrected X-ray  \nposition (using the XRT-UVOT alignment and matching UVOT field  \nsources to the USNO-B1 catalogue): RA, Dec =\n228.7993, 44.4284 which is equivalent to:\n\nRA (J2000):  15 15 11.83\nDec (J2000): +44 25 42.3\n\nwith an uncertainty of 1.8 arcsec (radius, 90% confidence). The  \nsource lies 27 arcsec from the BAT centroid and has a count rate of  \n~5.5e-1 counts/s during this observation.\n\nIt is not possible to determine whether this source is fading given  \nthe current statistics. Further observations are ongoing to clarify  \nthe nature of this source.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 8605,
  "createdOn": 1228346017000,
  "email": "sbarufatti@ifc.inaf.it",
  "subject": "GRB 081203B: Swift-XRT candidate afterglow.",
  "submitter": "Boris Sbarufatti at INAF-IASF-Pa  <sbarufatti@ifc.inaf.it>",
  "eventId": "GRB 081203B"
}