{
  "bibcode": "2005GCN..4128....1R",
  "body": "J. Racusin, D. Morris, C. Pagani, D. Burrows, A. Retter (PSU), N. Gehrels \n(GSFC) on behalf of the Swift XRT team:\n\nThe Swift XRT began observing GRB 051021B (trigger #160672, Retter et al., \nGCN 4126) at 23:33:14 UT, but was unable to obtain an on-board centroid. \nAnalysis of the first 2 orbits of the ground data reveal a previously \nuncatalogued, fading X-ray source at the following coordinates:\n\nRA(J2000) = 08 24 11.8\nDec(J2000) = -45 32 30.8\n\nWe estimate an uncertainty of 4 arcseconds (90% containment), including \ncorrections for the XRT boresight offset.  This position lies 88 \narcseconds from the BAT position reported in GCN 4126.",
  "circularId": 4128,
  "createdOn": 1129968184000,
  "email": "racusin@astro.psu.edu",
  "subject": "GRB051021B: Swift XRT Position",
  "submitter": "Judith Racusin at PSU  <racusin@astro.psu.edu>",
  "eventId": "GRB 051021B"
}