{
  "bibcode": "2005GCN..3790....1M",
  "body": "D. C. Morris, D. N. Burrows, J. A. Kennea, J. L. Racusin, N. Cucchiara, A. \nRetter (PSU), and N. Gehrels (GSFC) report on behalf of the Swift XRT team:\n\nThe Swift XRT began observing the short burst GRB 050813 (Retter et al., \nGCN 3788) at 06:46:23, but was unable to obtain an on-board centroid due to \nthe lack of any bright source in the field of view.  Analysis of the \nground-processed data finds a very faint (~0.01 cps), uncataloged source in \nthe first orbit of data at coordinates\n\nRA(J2000) = 16:07:57\nDec(J2000) = +11:14:52\n\nBecause of the faintness of the source, we estimate an uncertainty of 10 \narcseconds radius in this preliminary position.\n\nThis object is not visible in the second orbit.  We therefore consider it \nto be the afterglow of the GRB 050813.  We note the similarity (in terms of \nthe extreme weakness of the X-ray counterpart) with short burst GRB 050509B.",
  "circularId": 3790,
  "createdOn": 1123936139000,
  "email": "dxb15@psu.edu",
  "subject": "GRB 050813: Swift XRT afterglow localization",
  "submitter": "David Burrows at PSU/Swift  <dxb15@psu.edu>",
  "eventId": "GRB 050813"
}