TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3346 SUBJECT: GRB 050502b, Optical observations DATE: 05/05/04 06:49:22 GMT FROM: T.P. Prabhu at Indian Astro. Obs. The field of GRB 050502b (GCN 3330, 3333) was observed by B.C. Bhatt, S. Ramya and G.C. Anupama on 2005 May 2, 14:45 UT, using the 2-m Himalayan Chandra Telescope, Indian Astronomical Observatory, Hanle. The co-added 40 min (4 x 600s) R frame does not show any optical transient down to R ~ 22.5 mag. This message may be quoted in publications. -- T.P. Prabhu, on behalf of the GRB followup team of Indian Astronomical Observatory, Hanle