We observed the field of GRB 100302A (Cummings et al., GCN 10458) from Crni Vrh Observatory with a 60 cm robotic telescope, R filter and CCD. Twenty consecutive exposures of 60 second duration were taken in moonlight conditions. First exposure started at 2010-03-02 19:56:20 UT, 194 seconds after the burst (105 seconds after the SWIFT trigger). No optical candidate was detected within the uncertainty...Full Text

We confirm variability of the source identified by Sergeev and Pozanenko (GCN 8558). The object was observed from Crni Vrh Observatory with a 60 cm telescope using R filter and a CCD in about 5 arc-second seeing conditions. First 60 s exposure started at 2008-11-26 21:35:32 UT. All twenty exposures were of 60 s. The table contains the time since the Swift GRB detection to the middle of exposure...Full Text

We observed the afterglow of GRB 071112C (Perri et al., GCN 7059) with 60-cm Cichocki robotic telescope at Crni Vrh Observatory, Slovenia in rather poor seeing conditions. The series of nineteen 90 second connsecutive exposures with Rc filter started at 18:35:51UT, 118 seconds after the GCN notice time. We confirm optical afterglow found by UVOT. The object measured coordinates are RA=02:36...Full Text

Following the GCN 6270, we performed the analysis of images, obtained with R and B photometric filters. Photometry results are given in table below. Time refers to exposure start. ...Full Text

We observed a 42'x42' field centered on Swift position at ra=12:06:01 dec=+40:06:03 (J2000), using 60 cm Cichocki robotic telescope at Crni Vrh Observatory, Slovenia. There is no obvious source down to R magnitude 20.7 +/-0.1 inside the error box 3x3 arc minutes on 90 s R filter exposure, starting at 2007 Apr. 12 01:39:03 UT (46 seconds after reception of the alert) and 5 subsequent images...Full Text

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...Full Text

We imaged the field of GRB 061110B (SWIFT trigger 238174) with the 60 cm robotic telescope at Crni Vrh Observatory, Slovenia....Full Text