TITLE: GCN CIRCULAR NUMBER: 13060 SUBJECT: GRB 120311A: Optical follow-up DATE: 12/03/13 14:09:33 GMT FROM: Shashi Bhushan Pandey at ROTSE Vijay Kumar Bhatt, Brajesh Kumar and S.B. Pandey (ARIES, Nainital, India, on behalf of larger Indian GRB collaboration) We imaged the field of GRB120311A (Swift trigger 517469, Markwardt et al., GCN 13032) using 1.04m and 1.3m telescopes at ARIES Nainital starting ~16 hours after the burst. Several sets of 300s exposures were taken in R_c and I_c pass-bands. We do not detect the optical afterglow candidate (Melandri et al., GCN 13033) in our stacked images to following limits. The photometry was performed in comparison to nearby USNO-B1 stars. Filter Exposure Limiting mag ---------------------------------- R_c 5x300s 20.0 mag I_c 5x300s 19.5 mag ---------------------------------- This massage could be cited.