TITLE: GCN CIRCULAR NUMBER: 13119 SUBJECT: GRB 120326A: T17 optical observations DATE: 12/03/26 17:43:42 GMT FROM: Veli-Pekka Hentunen at Taurus Hill Obs,A95 Veli-Pekka Hentunen, Markku Nissinen and Tuomo Salmi (Taurus Hill Observatory, Varkaus, Finland) report: T17 (AstroCamp Observatory, Nerpio, Spain) CDK17 17 inch (0.43 m) f/6.8 and FLI ProLine CCD camera were used to detect GRB 120326A optical afterglow 1.7 hours after the burst trigger. The observations were started at 2012-03-26 02:54:48 (UT) and stopped at 2012-03-26 03:10:24 (UT). Six unfiltered observations with 120s exposure time were made. The afterglow was detected at following position RA 18:15:37.13 and DEC +69:15:35.6. The following magnitude was obtained from the observations using NOMAD1 1592-0145660 (R = 17.740) as the comparison: Tmid(sec)+T0 Filter Exp (sec) Mag Mag err Limit 6125 unfiltered 6x120 19.0 0.2 20.0 A jpg image of the observation is available at the following URL link: http://cutenews.kassiopeia.net/data/upimages/GRB120326A.png