TITLE: GCN CIRCULAR NUMBER: 19368 SUBJECT: GRB 160501A: TAROT Calern observatory optical observations DATE: 16/05/01 10:13:48 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 160501A detected by SWIFT (trigger 684679) with the TAROT robotic telescope (D=25cm) located at the Calern observatory, France. The observations started 50 min after the GRB trigger. The elevation of the field increased from 20 degrees above horizon and weather conditions were good. We co added images to increase detectivity: t1(s) t2(s) Rmag_lim Site 3594 5526 18.5 TAROT Calern 5526 7863 18.5 TAROT Calern Magnitudes were estimated with the nearby USNO-B1 stars and are not corrected for galactic dust extinction. N.B. Galactic coordinates are lon= 18.9676 lat=-10.7948 and the galactic extinction in R band is about 1.0 magnitudes estimated from D. Schlegel et al. 1998ApJ...500..525S.