{
  "bibcode": "2003GCN..1912....1V",
  "body": "K. von Braun (DTM), P. Garnavich (Notre Dame), K. Stanek (CfA)\n\nWe imaged the error circle of the INTEGRAL trigger 225 with\nthe 1-m Swope telescope on Mar. 1.38 (UT) which is 11 hours\nafter the burst. A single 600s exposure was obtained\nin the I-band.  This is a low Galactic latitude field but\nextinction in this direction is only 0.6 mag in the I-band based\non the Schlegel, Finkbeiner & Davis (1998, ApJ, 500, 525) maps.\nStellar crowding limits the detection threshold to rather bright\nmagnitudes. Compared with the digitized sky survey IR plate we\nfind no new sources within the 10' diameter error circle down\nto I=19 based on a rough calibration with a Landolt standard field.\n\nWe do find an existing star which is significantly brighter in our\nCCD image than on the DSS plate at 17:56:44.46 -37:52:57 (2000)\nwhich we identify as the infrared source IRAS 17533-3752 and its\ndetection is probably due to a combination of a large IR excess and\na filter mismatch.\n\nThis message may be cited.",
  "circularId": 1912,
  "createdOn": 1046545978000,
  "email": "pgarnavi@miranda.phys.nd.edu",
  "subject": "GRB 030228, optical observations",
  "submitter": "Peter Garnavich at U of Notre Dame  <pgarnavi@miranda.phys.nd.edu>",
  "eventId": "GRB 030228"
}