TITLE: GCN CIRCULAR NUMBER: 43401 SUBJECT: GRB 260114A: Mondy optical observations DATE: 26/01/14 16:57:54 GMT FROM: Alexei Pozanenko at IKI, Moscow <grb.alex@gmail.com> A. Volnova (IKI), A. Pozanenko (IKI), E. Klunko (ISTP), N. Pankov (HSE, IKI) report on behalf of IKI-GRB-FuN: We observed the field of GRB 260114A (Eyles-Ferris et al., GCN 43396; Fermi GBM team, GCN 43395; Bissaldi et al., GCN 43400) with the AZT-33IK 1.5m telescope of the Mondy observatory starting on 2026-01-14 (UT) 12:17:27 in R filter. Within the Swift/XRT error circle (Eyles-Ferris et al., GCN 43396) we detect the optical counterpart (Li et al., GCN 43398). Preliminary photometry is the following: Date UT start t-T0 Exp. Filter Obj. Err. UL Site/Telescope (mid,days) (n*s) (3sigma) 2026-01-14 12:17:27 0.08360 37*120 R 20.41 0.15 21.6 The photometry is calibrated using USNO-B1.0 stars and is not corrected for the Galactic extinction. View this GCN Circular online at https://gcn.nasa.gov/circulars/43401. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...