{
  "bibcode": "2005GCN..4332....1P",
  "body": "C. Pagani (INAF-OAB), D. N. Burrows (PSU), V. Mangano and V. La Parola \n(INAF-IASF) report on behalf of the Swift XRT team:\n\nThe Swift XRT began observing GRB 051211B, detected by INTEGRAL (Mereghetti \net al., GCN 4327), at 01:05:28 UT on 12 December 2005 (10.8 ks after the \nburst).  In the first orbit of data (2.4 ks of exposure time), an \nuncataloged X-ray source was detected at the following position:\nRA,Dec = 345.6762,+55.081 {23:02:42.3, +55:04:51.7} (J2000)\nwith an uncertainty of 4.5 arcsec radius (90% containment).  This position \nincludes corrections for the XRT boresight.  We detected 58 photons from \nthis source in Photon-Counting mode at a count rate of 0.024 cps, \ncorresponding to an observed flux of about 1.3x10-12 ergs/cm^2/sec.\n\nThe X-ray source is 25 arcsec from the INTEGRAL position (GCN 4327) and 58 \narcsec from the candidate optical afterglow reported in GCN 4328.  There is \nno X-ray source visible at the position of the candidate optical afterglow.\n\nWith the data available at this time we cannot determine whether or not \nthis source is fading.  Observations are continuing, and we will report \nfurther results in a later circular.",
  "circularId": 4332,
  "createdOn": 1134362771000,
  "email": "dxb15@psu.edu",
  "subject": "GRB 051211B: Swift XRT Observations",
  "submitter": "David Burrows at PSU/Swift  <dxb15@psu.edu>",
  "eventId": "GRB 051211B"
}