{
  "bibcode": "2005GCN..4054....1F",
  "body": "D.B. Fox (Penn State), N.E.D. Noel (Instituto de Astrofisica de\nCanarias), and S.L. Prior (RSAA/ANU), with B.A. Peterson and\nB.P. Schmidt (RSAA/ANU) report:\n\n\"We have observed the Swift XRT localization region for GRB 051001\n(Swift Trigger 157870; Moretti et al., GCN 4051) with the 40-inch\ntelescope at Siding Spring Observatory.  A coadded I-band image with\nmean epoch 1 October 11:53 UT (52 minutes after the burst) reveals no\nsources within this region, to a limiting magnitude of I>20.8 mag as\ncalibrated against the photometry of the USNO-B1.0 catalog.\n\nIn particular, we do not detect the extended object of Rol, Levan &\nTanvir (GCN 4053) to the quoted limit.\"",
  "circularId": 4054,
  "createdOn": 1128217265000,
  "email": "dfox@astro.psu.edu",
  "subject": "GRB 051001: I-band limit",
  "submitter": "Derek Fox at PSU  <dfox@astro.psu.edu>",
  "eventId": "GRB 051001"
}