TITLE:   GCN CIRCULAR
NUMBER:  14572
SUBJECT: GRB 130505A: iTelescope T12 optical observations
DATE:    13/05/05 15:03:03 GMT
FROM:    Veli-Pekka Hentunen at Taurus Hill Obs,A95  <veli-pekka.hentunen@kassiopeia.net>

Veli-Pekka Hentunen, Markku Nissinen and Tuomo Salmi (Taurus Hill
Observatory, Varkaus, Finland) report:

We have detected GRB 130505A optical afterglow at iTelescope 
observatory T12 (Siding Spring, Australia) Takahashi FSQ ED 
0.10m/5.0 astrograph and SBIG STL-11000M CCD. Five 
unfiltered images with 600 sec and 300 sec exposure time were made.

The afterglow was detected at following position RA 09:08:14.6 and
DEC +17:29:04.

The following magnitudes were obtained from the observations using
NOMAD1 1075-0205635 (R=14.240) as the comparison:

Tmid(sec)+T0    Filter          Exp. time        Mag          Mag err. 
2485                  unfiltered      600            16.78CR     0.06
3370                  unfiltered      3x300        17.15CR     0.02
5061                  unfiltered      600            17.45CR     0.08