{
  "eventId": "GRB 230812B",
  "circularId": 34393,
  "submittedHow": "web",
  "subject": "GRB 230812B: Preliminary Swift/XRT localization",
  "createdOn": 1691899386863,
  "bibcode": "2023GCN.34393....1K",
  "body": "J. A. Kennea (PSU) on behalf ot the Swift team,\n\nIn a target-of-opportunity observation taken starting 02:00UT on  \nAugust 13th, 2023, pointed at the LAT position (GCN 34392) of \nGRB 230812B (GCN 34391), we find a previously uncatalogued X-ray\npoint source in preliminary data from Swift’s X-ray Telescope.\n\nThe preliminary position is RA/Dec (J2000) = 249.13957, 47.854760,\nwhich is equivalent:\n\nRA(J2000) = 16h 36m, 33.4s,\nDec(J2000) = +47d 51m 17.1s,\n\nwith an estimate error of 10 arcseconds radius. Please note this position\nis based upon preliminary data, reported rapidly to aide follow-up. An\nupdated position will be reported via GCN ASAP.",
  "submitter": "Jamie Kennea at Penn State U <jak51@psu.edu>"
}