{
  "bibcode": "2003GCN..1855....1C",
  "body": "V. Casanova, E. Rodriguez, A.J. Castro-Tirado (IAA-CSIC),\nJ. Gorosabel (IAA-CSIC/STScI),\nJ. M. Castro Ceron (STScI)\n\nreport:\n\n\"We have imaged a 7' x 7' region centred on the                      \nerror box for GRB 020304 (Hurley et al., GCN 1854)                      \nwith the 1.5-m telescope at Observatorio de Sierra                      \nNevada in Granada, Spain. One unfiltred  frame and                      \none R-band frame (300-s exposure time each) were                      \nobtained on Feb 4.879 UT (i.e. 8.3 hours after                      \nthe GRB) under poor meteorological conditions.                      \nWhen comparing to the DSS-2 (R-band), no optical\ncounterpart is found down to a limiting magnitude                      \nof R = 19.7 in the central region (coverage ~35%)\nof the error box.\"",
  "circularId": 1855,
  "createdOn": 1044405869000,
  "email": "ajct@laeff.esa.es",
  "subject": "GRB 030204, optical observations",
  "submitter": "Alberto Castro-Tirado at LAEFF-INTA  <ajct@laeff.esa.es>",
  "eventId": "GRB 030204"
}