TITLE: GCN CIRCULAR NUMBER: 20042 SUBJECT: GRB 161014A: TSHAO optical observations DATE: 16/10/15 00:07:46 GMT FROM: Alexei Pozanenko at IKI, Moscow E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), I. Reva (Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of GRB 161014A (Racusin et al., GCN 20035) with Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical Observatory. We obtained several images in R filter starting on Oct. 14 (UT) 13:48:35. We detected the afterglow of GRB 161014A (Morita et al., GCN 20036; Guidorzi et al., GCN 20037; Xin et al., GCN 20038). Preliminary photometry of of combined the first observational set is following Date UT start t-T0 Filter Exp. OT Err. UL (mid, days) (s) 2016-10-14 13:48:35 0.07046 R 21*120 19.0 0.10 20.6 Photometry is based on nearby SDSS-DR9 stars (Lupton transformations): SDSS-DR9_id R(Lupton) J221053.78+072643.3 14.88 J221018.77+072726.4 14.05 J221023.66+073006.3 15.49 J221024.28+072335.5 15.75 J221050.55+072341.7 17.10