{
  "bibcode": "2011GCN.12669....1K",
  "body": "J.A. Kennea (PSU), G. Tagliaferri (INAF-OAB), S. Campana (INAF-OAB),\nP.A. Evans (U. Leicester), J.P. Osborne (U. Leicester) and D.N. Burrows\n(PSU) report on behalf of the Swift-XRT team:\n\nThe XRT began observing the field of GRB 111212A at 10:17:35.0 UT,\n3267.9 seconds after the BAT trigger. Using promptly downlinked data we\nfind an uncatalogued X-ray source located at RA, Dec 310.43423,\n-68.61205 which is equivalent to:\n   RA(J2000)  = 20h 41m 44.22s\n   Dec(J2000) = -68d 36' 43.4\"\nwith an uncertainty of 3.5 arcseconds (radius, 90% containment). This\nlocation is 43 arcseconds from the BAT onboard position, within the BAT\nerror circle. This position may be improved as more data are received;\nthe latest position is available at http://www.swift.ac.uk/sper. \n\nA power-law fit to a spectrum formed from promptly downlinked event\ndata gives a column density in excess of the Galactic value (3.07 x\n10^20 cm^-2, Kalberla et al. 2005), with an excess column of 2\n(+0.94/-0.88) x 10^21 cm^-2 (90% confidence).",
  "circularId": 12669,
  "createdOn": 1323689041000,
  "email": "pae9@star.le.ac.uk",
  "subject": "GRB 111212A: Swift-XRT observations",
  "submitter": "Phil Evans at U of Leicester  <pae9@star.le.ac.uk>",
  "eventId": "GRB 111212A"
}