TITLE: GCN CIRCULAR NUMBER: 6270 SUBJECT: GRB 070411: Optical observations at Crni Vrh DATE: 07/04/11 21:27:22 GMT FROM: Herman Mikuz at OCV H. Mikuz, J. Skvarc and B. Dintinjana on behalf of PIKA observing program at Crni Vrh Observatory: We observed the afterglow of GRB 070411 (Moretti et al., GCN 6267) with 60 cm Cichocki robotic telescope at Crni Vrh Observatory, Slovenia. The 90 second exposure with R filter started at 20:14:01UT, 48 seconds after reception of the alert. We confirm optical afterglow found by UVOT. The object measured coordinates are ra=07:09:19.95, dec=+01:03:52.8, approximate brightness is R=17.9. The object faded on subsequent images. Further photometric analysis is in progress.