TITLE: GCN CIRCULAR NUMBER: 12887 SUBJECT: GRB 120121A: ISON-NM optical observations DATE: 12/01/21 13:16:52 GMT FROM: Leonid Elenin at ISON L. Elenin (KIAM), A. Pozanenko (IKI), A. Volnova (SAI MSU), I. Molotov (KIAM) report on behalf of larger GRB follow-up collaboration: We observed the field of the Swift GRB 120121A (Page et al., GCN 12885) with 0.45-m telescope ISON-NM observatory on Jan. 21. We took several unfiltered images of 60 s exposure on Jan. 21, starting (UT) 12:29:25. We do not detect any object within the XRT error circle (Page et al., GCN 12886 ), down to 19.7m (calibrated against the USNO B1.0 catalog).