TITLE: GCN CIRCULAR NUMBER: 20153 SUBJECT: GRB 161108A: TAROT Calern observatory optical observations DATE: 16/11/08 22:57:10 GMT FROM: Alain Klotz at IRAP-CNRS-OMP Klotz A., Turpin D., Atteia J.L. (CNRS-OMP-IRAP), Boer, M., Laugier, R. (CNRS-ARTEMIS), Gendre B. (UVI - Etelman Obs.) report: We imaged the field of GRB 161108A detected by SWIFT (trigger 721234) with the TAROT robotic telescope (D=25cm) located at the Calern observatory, France. The observations started 449s after the GRB trigger The elevation of the field increased from 28 degrees above horizon and weather conditions were good. We co-added a series of exposures but we did not detect the afterglow candidate of Malesani et al. (GCNC 20146). TAROT limiting magnitudes are: t0+ 449s to t0+ 539s : Rlim = 18.5 t0+1271s to t0+1941s : Rlim = 19.5 t0+1952s to t0+3694s : Rlim = 19.5 t0+3705s to t0+6041s : Rlim = 19.5 Magnitudes were estimated with the nearby NOMAD1 stars and are not corrected for galactic dust extinction.