{
  "bibcode": "2008GCN..7583....1M",
  "body": "J. Mao and C. Guidorzi (INAF-OAB) on behalf of the Swift-XRT team report:\n\nA re-examination of the XRT data on GRB080330 (Mao et al.\nGCN Circ. 7537) taken during the first orbit revealed that\nthe XRT improved position distributed by Mao (GCN Circ. 7561)\nis incorrect due to star tracker loss-of-lock problems already\nmentioned by Burrows (GCN Circ. 7541).\nWe re-processed the first orbit PC data and extracted the following\nrefined position from 136 to 311 s after the burst,\nwhen the star tracker drifting seems to have little impact:\nRA, Dec = 169.26950, +30.62355 which is equivalent to:\n\nRA (J2000): 11h 17m 04.68s\nDec (J2000): +30d 37' 24.78\"\n\nwith an uncertainty of 4.0 arcsec (radius, 90% confidence).\nThis is consistent with the optical ground-based position\n(2.7 arcsec away from the PAIRITEL position reported by\nBloom and Starr, GCN Circ. 7542).\n\nThis is an official product of the Swift XRT team.",
  "circularId": 7583,
  "createdOn": 1207924336000,
  "email": "jirong.mao@brera.inaf.it",
  "subject": "GRB 080330: Swift-XRT refined position retraction",
  "submitter": "Jirong Mao at INAF-OAB  <jirong.mao@brera.inaf.it>",
  "eventId": "GRB 080330"
}