TITLE: GCN CIRCULAR NUMBER: 19062 SUBJECT: GRB 160223B: LCOGT-FTN optical observations DATE: 16/02/23 20:02:48 GMT FROM: Simone Dichiara at Ferrara U/Italy S. Dichiara, C. Guidorzi (U. Ferrara), S. Kobayashi (LJMU), A. Gomboc (U. Nova Gorica), C.G. Mundell (U. Bath), on behalf of a larger collaboration report: The 2-m LCOGT Faulkes Telescope North began observing INTEGRAL and Fermi GRB 160223B (Gotz et al. GCN 19059, von Kienlin et al., GCN 19061) on Feb 23 at 10:06:58 UT (7.8 minutes after the burst trigger) with r filter. We do not detect any optical afterglow candidate within the INTEGRAL error circle (Gotz et al. GCN 19059) down to the following magnitudes: Mid Time Exposure Filter Magnitude (min) (s) ------------------------------------------------------- 12.27 5x120 r' > 20.5 ------------------------------------------------------- Values have been calibrated against nearby USNOB-1 stars (R2)