TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1466 SUBJECT: GRB 020714, optical observations DATE: 02/08/10 18:45:03 GMT FROM: Javier Gorosabel at LAEFF-INTA, Madrid J. Gorosabel (IAA-CSIC), J.M. Castro Cerón (ROA), A.J. Castro Tirado (IAA-CSIC), A. Guijarro (CAHA), F. Hoyo (CAHA), S. Pedraz (CAHA) and C. Wolf (Oxford Univ.), report: We have carried out Ic-band observations of the central part of the GRB 020714 (GCN 1457) error box with the 2.2m Telescope of Calar Alto (+BUSCA) as follows: ============================================================== Date Seeing Exp.Time Lim.Mag. Time Since Coverage (2002 UT) (") (s) (3 sigma) GRB (days) (%) -------------------------------------------------------------- 18.020-18.105/07 1.3 7x900 24.4 3.4 60 19.021-19.094/07 1.1 6x900 24.5 4.4 60 06.036-06.110/08 1.8 6x900 24.1 22.4 55 -------------------------------------------------------------- Marginal variability (< 0.25 mag) is detected for 5 objects. None of these sources shows flux variability consistent with a decay as expected for an optical afterglow 3.4-22.4 days after the GRB.