TITLE: GCN CIRCULAR NUMBER: 19622 SUBJECT: GRB 160629A: TAROT Calern observatory optical detection DATE: 16/06/30 02:56:57 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 160629A detected by INTEGRAL (trigger 7498) with the TAROT robotic telescope (D=25cm) located at the Calern observatory, France. The observations started 21s after the GRB trigger (19s after the notice). The elevation of the field increased from 39 degrees above horizon and weather conditions were good. We detect a new fading source in the error box given by INTEGRAL (Gotz et al. GCNC 19621) at the following position (+/- 2 arcsec): RA(J2000.0) = 00:19:27.42 DEC(J2000.0) = +76:58:00.7 t1(s) t2(s) Rmag Site 98 128 16.4 TAROT Calern 139 168 16.9 TAROT Calern 407 497 17.1 TAROT Calern The first image (t1=21s t2=81s) is trailed with a duration of 60.0s (see the description in Klotz et al., 2006, A&A 451, L39). It shows an increase of the optical flux until R~16.4 at 81s. This image must be analyzed more carefuly. Magnitudes were estimated with the nearby USNO-B1 stars and are not corrected for galactic dust extinction. N.B. Galactic coordinates are lon=121.0706 lat=+14.2321 and the galactic extinction in R band is about 1.2 magnitude estimated from D. Schlegel et al. 1998ApJ...500..525S.