TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3396 SUBJECT: GRB 050509B, Optical Observations DATE: 05/05/09 18:02:14 GMT FROM: Kuntal Mishra at ARIES,Nainital,India Kuntal Misra and S. B. Pandey (ARIES Naini Tal), on behalf of larger Indian GRB collaboration Afterglow candidate (GCN 3388) of the short duration GRB 050509B, localized by SWIFT (GCN 3381), was monitored from ARIES Naini Tal, India using 1-m telescope. The total exposure given in R_c band was 900sec*4 in good sky conditions, around 11 hours after the burst. Photometry of the stacked frame poses an upper limit of ~ 22 mag at the location of OT in comparison to nearby USNO-A2.0 stars. This message may be cited.