TITLE: GCN CIRCULAR NUMBER: 14216 SUBJECT: GRB 130215A: iTelescope T11 observations DATE: 13/02/15 13:46:08 GMT FROM: Veli-Pekka Hentunen at Taurus Hill Obs,A95 Veli-Pekka Hentunen, Markku Nissinen and Tuomo Salmi (Taurus Hill Observatory, Varkaus, Finland) report: T11 (iTelescope Observatory, Mayhill, New Mexico) TEL T11 0.50-m/6.8 astrograph (0.50 m) f/6.5 and FLI ProLine PL11002M CCD camera were used to detect GRB 130215A optical afterglow. The observations were started at 2013-02-15 02:20:23 (UT) and stopped at 2013-02-15 03:22:20 (UT). Three unfiltered, two photometric R filter and two photometric V filter observations with different exposure times were made. The afterglow was detected at following position RA 02:54:00.73 and DEC +13:23:43.4. The following magnitudes were obtained from the observations using NOMAD1 1034-0036172 (R = 14.220, V = 15.030) as the comparison: Tmid(s)+T0 Filter Exp (sec) Mag Mag err Limit 2993 unfiltered 120 15.56CR 0.02 19.66 3156 unfiltered 120 15.70CR 0.03 19.66 4595 Rc 300 16.44R 0.04 19.22 4936 Rc 300 16.54R 0.05 19.32 5586 V 300 17.27V 0.05 19.92 5910 V 300 17.34V 0.06 19.92 6500 unfiltered 300 16.62CR 0.03 19.64 -- ************************************************************************* Viesti on tarkastettu roskapostinsuodatus- ja virustorjuntaohjelmistolla. *************************************************************************