{
  "bibcode": "2003GCN..1957....1W",
  "body": "W. M. Wood-Vasey, Lawrence Berkeley National Laboratory, using images\nobtained by R. Bambery, S. Pravdo, M. Hicks, and K. Lawrence\n(Near-Earth Asteroid Tracking project, Jet Propulsion Laboratory),\nreports historical upper limits for the optical transient for GRB\n20030323 of Gilmore et. al (GCN #1949) from images taken with the\nPalomar Oschin 1.2-m telescope during the previous year:\n\nUT Date               Limiting Unfiltered Mag\n                          ( @ S/N = 3)\n------------------------------------------------\n2002 Jan 12.56            [ 20.19                \n2002 Jan 12.57            [ 20.09                \n2002 Jan 13.57            [ 20.16                \n2002 Jan 13.58            [ 19.77                \n2002 Feb 11.36            [ 20.16                \n2002 Feb 11.38            [ 20.19                \n2002 Feb 11.40            [ 20.09                \n2003 Jan 12.53            [ 20.33                \n2003 Jan 12.55            [ 20.31                \n2003 Jan 12.56            [ 20.28                \n2003 Mar 12.38            [ 20.22                \n2003 Mar 20.30            [ 19.69                \n\nA co-addition of these images shows nothing at this location to a\ncombined limiting magnitude of 21.87 (S/N = 3).\n\nThe co-addition is available at:\n\nhttp://supernova.lbl.gov/~wwoodvas/GRB/#GRB20030323\n\nThis message may be cited.",
  "circularId": 1957,
  "createdOn": 1048632097000,
  "email": "wmwood-vasey@lbl.gov",
  "subject": "GRB030323: Upper limits from recent and historical observations.",
  "submitter": "Michael Wood-Vasey at UC Berkeley/LBNL/SNfactory  <wmwood-vasey@lbl.gov>",
  "eventId": "GRB 030323"
}