{
  "bibcode": "2006GCN..4660....1T",
  "body": "K. Torii (Osaka U.) reports on behalf of the ART collaboration:\n\n The error region of GRB 060204B (Falcone et al. GCN 4655) was imaged\nwith the 0.35m ART 3b telescope in Toyonaka, Osaka.\n\n From a stacked frame (60s x 20 in Ic), the following 3 sigma limit is\nderived for an optical counterpart of the XRT source (GCN 4655), with\nreference to USNO-B1.0 I magnitude.\n\n-----------------------------\nStartUT\t\tLimits\n=============================\n14:59:31\t>18.0I\n=============================",
  "circularId": 4660,
  "createdOn": 1139073292000,
  "email": "torii@ess.sci.osaka-u.ac.jp",
  "subject": "GRB 060204B: ART optical limit",
  "submitter": "Ken ichi Torii at RIKEN  <torii@ess.sci.osaka-u.ac.jp>",
  "eventId": "GRB 060204B"
}