{
  "bibcode": "2003GCN..1899....1U",
  "body": "M. Uemura, R. Ishioka, T. Kato (Kyoto U.) and H. Yamaoka (Kyushu U.)\nreport on behalf of VSNET-GRB collaboration:\n\n  We are observing the position of GRB 030227 (GCN 1895) starting at\nFeb. 27 09:48 UT (1.1 hours after burst) with the 0.25-m telescope\n(+unfiltered CCD) at Kyoto University.  The stacked image (30 x 30s,\nup to 10:19 UT) covers the entire refined error circle (GCN 1896),\nassuming that the position figures in GCN 1896 was based on the\ncurrent equinox (see Note).  Visual comparison of the stacked image to\nthe DSS 2 red image shows no new object down to a limiting magnitude\nof about 18.0 (estimated with USNO-A2.0 red magnitudes of many field\nstars).  Further observation (also with the 0.30-m telescope) and\nanalysis is underway. \n\nThis message can be cited.\n\nNote:  The preliminary position given in GCN 1895 (04:57:29,\n+20:29:23, the authors say it is based on J2000.0) coincided with the \nposition given in the GCN/INTEGRAL NOTICE at 09:29:48 UT (hereafter\nGIN) based on the current equinox.  If the position in GCN 1896 is\ntruely based on the equinox J2000.0, the refined error circle\nintersects the initial error circle reported in GIN, and our stacked\nimage covers about 70 percent of the refined error circle.  Our field\nof view covers about 80 percent of the initial error circle reported\nin GIN.",
  "circularId": 1899,
  "createdOn": 1046361478000,
  "email": "yamaoka@rc.kyushu-u.ac.jp",
  "subject": "GRB 030227: Kyoto optical observation",
  "submitter": "Hitoshi Yamaoka at Kyushu U., VSNET-GRB collab.  <yamaoka@rc.kyushu-u.ac.jp>",
  "eventId": "GRB 030227"
}