{
  "bibcode": "2006GCN..4673....1P",
  "body": "S. Piranomonte (INAF/OARm), D. Malesani (SISSA), H. Navasardyan \n(INAF/OAPd), N. Masetti (INAF/IASF Bo), report on behalf of a larger \ncollaboration:\n\nWe observed the field of GRB 060204C (Grupe et al., GCN 4663) with the \nAsiago telescope equipped with the AFOSC camera. Ten exposures lasting 3 \nminutes each were acquired, starting on 2006 Feb 4.9009 UT (mean time \nFeb 4.9172 UT, i.e. 1.45 hr after the GRB). The seeing was quite bad \n(~2.4 arcsec).\n\nVisual inspection of the coadded frame reveals no new objects inside the \nwhole BAT error circle, after comparison with the DSS-II. The limiting \nmagnitude of our images is estimated to be R ~ 21.8 (calibrated against \nthe USNO-B1 catalog).\n\nOur images do not cover the position of the XRT source mentioned in GCN \n4672 (Grupe et al., GCN 4672), which lies outside the BAT error circle.\n\nThis message can be cited.",
  "circularId": 4673,
  "createdOn": 1139116238000,
  "email": "malesani@sissa.it",
  "subject": "GRB 060204C: optical observations",
  "submitter": "Daniele Malesani at SISSA-ISAS,Trieste,Italy  <malesani@sissa.it>",
  "eventId": "GRB 060204C"
}