TITLE: GCN CIRCULAR NUMBER: 22276 SUBJECT: GRB 171222A: Nanshan-0.36m optical upper limit DATE: 17/12/23 14:34:17 GMT FROM: Dong Xu at NAOC/CAS H.J. Tan (CCU), H.X. Feng, Z.P. Zhu, D. Xu (NAOC), X. Gao (Urumqi No.1 Senior High School) report We observed the field of GRB 171222A (Racusin et al., GCN 22265) using the 0.36m robotic telescope located at Nanshan, Xinjiang, China. Observations started at 17:04:17 UT on 2017-12-22, i.e., 39.3 mins after the BAT trigger, and all imaged were taken without filter. No optical source is detected at the XRT position (Osborne et al., GCN 22266) as well as the NOT position (Perley et al., GCN 22269), down to a limiting magnitude of m(R)~19.3, calibrated with the USNO B1 field.