GCN Circular 5134
Klotz, A. (CESR-OMP), Boer M. (OHP), Atteia J.L. (LATT-OMP) report: We imaged the field of GRB 060515 detected by SWIFT (trigger 210084) with the TAROT robotic telescope (D=25cm) located at the Calern observatory, France. First image was acquired 60.0s after the GRB trigger (9s after the notice). The field elevation decreased from 29 degrees above horizon and weather conditions were good. Date of trigger : t0 = 2006-05-15T02:27:53 First image is 60s exposure trailed. No optical transcient (OT) is visible: t0+60.0s to t0+120.0s : R > 15.1 Second image is 30s exposure. No OT is visible: t0+126s to t0+156s : R > 16.2 We co-added a series of all 17 exposures taken between t0+126s and t0+1497s. We detect a possible OT candidate R~18 at the position (+/- 5 arcsec): RA(J2000.0) = 08h 29m 10.42s DEC(J2000.0) +73d 32' 54.6" The limiting magnitude of the image is R ~ 18.2. The OT candidate is very faint and we cannot confirm it because no more images can be taken because the twilight occured. Magnitudes were estimated with the nearby USNO-A2 stars Galactic coordinates are lon=140.7911 lat=+32.7885 and the galactic extinction in R band is 0.1 magnitudes estimated from D. Schlegel et al. 1998ApJ...500..525S. This message may be cited.