TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3008 SUBJECT: GRB 050129: Optical observations DATE: 05/02/03 20:56:46 GMT FROM: Javier Gorosabel at LAEFF-INTA, Madrid J. Gorosabel, A.J. Castro-Tirado, A. de Ugarte Postigo, M. Jelínek and V. Casanova (IAA-CSIC, Granada), report: "We acquired RI-band images of the faint INTEGRAL GRB 050129 error box (Gotz et al., GCN Circ. 3003) with the 1.5m telescope at Observatorio de Sierra Nevada, as follows: Date Obs. Exp. Time Filter Lim. Mag. Feb 2005 UT (s) (3 sigma) =========================================== 1.2197-1.2506 4x300 R 22.0 1.2236-1.2662 7x300 I 21.5 ------------------------------------------- 3.2078-3.2184 3x300 R 21.8 3.2214-3.2462 7x300 I 21.6 =========================================== Comparison between both epoch co-added images did not reveal any variable source." This message can be cited.