{
  "bibcode": "2004GCN..2547....1D",
  "body": "A. De Luca (IASF, Milan, on behalf of Progetto Swift Italia), S.\nMereghetti, A. Tiengo (IASF, Milan), S. Campana (OAB-Merate) report:\n\nWe have obtained an improved position for the likely afterglow of the\nINTEGRAL GRB 040223 (GCN 2525)\n\n\nAstrometry of the XMM-Newton/EPIC images was done by matching X-ray\nsources in the field to stars in the USNO-B1 catalogue. The refined\nposition (J2000) for the X-ray afterglow (source XMMU J163929.9-415601,\nGCN 2530) is:\n\nRA:16h 39m 30.17s    Dec:-41d 55' 59.7''\n\nThe 1 sigma error radius is 1.5 arcsec (including the rms error on the\ncross-correlation as well as systematic uncertainties in the optical\ncatalogue).\n\n\nThis message may be cited.",
  "circularId": 2547,
  "createdOn": 1079536120000,
  "email": "deluca@mi.iasf.cnr.it",
  "subject": "GRB040223, improved XMM position",
  "submitter": "Andrea De Luca at IASF-CNR,Milano  <deluca@mi.iasf.cnr.it>",
  "eventId": "GRB 040223"
}