TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3626 SUBJECT: GRB 050716: Optical Observations DATE: 05/07/16 14:56:39 GMT FROM: Ken ichi Torii at RIKEN K. Torii (Osaka U.) reports on behalf of the ART collaboration: The error region of GRB 050716 (Rol et al. GCN 3623) was observed by the Automated Response Telescope. The observation started at 2005 July 16 12:38:26 UT (142 s after the trigger) and BVRcIc frames of 60s integration were acquired. We do not detect an optical counterpart of the X-ray afterglow (GCN 3623, 3624) and derive its 3-sigma upper limit relative to USNO-B1.0 magnitude as follows. ================================ Start(UT) Filter Mag Exposure -------------------------------- 12:55:06 Ic >16.5 60s x27 --------------------------------