TITLE: GCN CIRCULAR NUMBER: 11704 SUBJECT: GRB 110212A: GRT Optical Observation DATE: 11/02/13 04:13:57 GMT FROM: Takanori Sakamoto at NASA/GSFC T. Sakamoto (UMBC/GSFC), D. Donato (UMD/GSFC), N. Gehrels (GSFC), T. Okajima (GSFC), Y. Urata (NCU), C.A. Wallace (FGCU) We observed the field of GRB 110212A detected by Swift (trigger #445321; D'Elia et al., GCN Circ. 11699) with the 14-inch Goddard Robotic Telescope (GRT) located at the Goddard Geophysical and Astronomical Observatory (http://cddisa.gsfc.nasa.gov/ggao/). A total 209 images of 5 sec (200 images) and 30 sec (9 images) exposures were taken in the R filter starting from February 12 01:10:20 (UT), about 71 seconds after the trigger (37 seconds after the BAT position notice), and stopped on February 12 01:45:53 (UT). We do not detect the optical afterglow both in the individual images and the stacked image inside the BAT error circle (Ukwatta et al., GCN #11703). The estimated five sigma upper limit of the combined image (total exposure of 1270 sec) is ~18.9 mag using the USNO-B1 catalog.