TITLE: GCN CIRCULAR NUMBER: 7353 SUBJECT: GRB 080303A: Faulkes Telescope South optical afterglow observations DATE: 08/03/03 11:19:42 GMT FROM: Andreja Gomboc at LT,ARI,Liverpool JMU A. Gomboc (U. Ljubljana), R.J. Smith, D.F. Bersier, S. Kobayashi, A. Melandri, A. Monfardini, C.G. Mundell, I.A. Steele (Liverpool JMU), C. Guidorzi (U. Bicocca & INAF-OAB), P. O'Brien, E. Rol, N. Bannister (Leicester) report: The 2-m Faulkes Telescope South (Siding Spring) robotically followed up GRB 080303A (SWIFT trigger 304549) starting 3.3 min after the GRB trigger time. We detect an optical afterglow candidate in R, B, and i' filters at the position consistent with the UVOT (Sakamoto et al, GCN 7351), REM (D'Avanzo et al., GCN 7350) and Mt. John (Gilmore & Kilmartin, GCN 7352) optical afterglow candidate. The magnitude of the source was R~17.4+-0.3 and 19.7+-0.3 at 8 min and 50 min after the trigger time, respectively.