{
  "eventId": "GRB 230812B",
  "bibcode": "2023GCN.34394....1P",
  "createdOn": 1691903978025,
  "submitter": "K.L. Page at U Leicester <klp5@leicester.ac.uk>",
  "body": "K.L. Page (U. Leicester) reports on behalf of the Swift-XRT team:\n\nWe have analysed 1.8 ks of XRT data for GRB 230812B, starting 25.4 ks\nafter the Fermi trigger (GCN 34391, 34392). The data are entirely in\nPhoton Counting (PC) mode. The currently best available XRT position is\nRA, Dec = 249.1323, 47.8574, which is equivalent to:\n\nRA (J2000):  16 36 31.76\nDec(J2000): +47 51 26.7\n\nwith an uncertainty of 3.7 arcsec (radius, 90% confidence).\n\nWe note that this is 20 arcsec from the preliminary position given in GCN\n34393.\n\nA detailed refined analysis circular will be sent when more data are\navailable.\n\nThis circular is an official product of the Swift-XRT team.\n",
  "circularId": 34394,
  "submittedHow": "email",
  "subject": "GRB 230812B: Improved Swift/XRT localization"
}