TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1855 SUBJECT: GRB 030204, optical observations DATE: 03/02/05 00:44:29 GMT FROM: Alberto Castro-Tirado at LAEFF-INTA V. Casanova, E. Rodriguez, A.J. Castro-Tirado (IAA-CSIC), J. Gorosabel (IAA-CSIC/STScI), J. M. Castro Ceron (STScI) report: "We have imaged a 7' x 7' region centred on the error box for GRB 020304 (Hurley et al., GCN 1854) with the 1.5-m telescope at Observatorio de Sierra Nevada in Granada, Spain. One unfiltred frame and one R-band frame (300-s exposure time each) were obtained on Feb 4.879 UT (i.e. 8.3 hours after the GRB) under poor meteorological conditions. When comparing to the DSS-2 (R-band), no optical counterpart is found down to a limiting magnitude of R = 19.7 in the central region (coverage ~35%) of the error box."