[vsnet-grb-info 13274] GRB 130508A: MITSuME Okayama upper limits

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  14611
SUBJECT: GRB 130508A: MITSuME Okayama upper limits
DATE:    13/05/09 00:17:17 GMT
FROM:    Daisuke Kuroda at OAO/NAOJ  <dikuroda at oao.nao.ac.jp>

D. Kuroda, K. Yanagisawa, Y. Shimizu, H. Toda (OAO, NAOJ),
S. Nagayama (NAOJ), M. Yoshida (Hiroshima), K. Ohta (Kyoto)
and N. Kawai(Tokyo Tech)
report on behalf of the MITSuME collaboration:

We observed the field of GRB 130508A (Holland et al., GCNC 14607)
with the optical three color (g', Rc and Ic) CCD camera attached
to the MITSuME 50cm telescope of Okayama Astrophysical Observatory.

The observation started on 2013-05-08 17:10:40 UT (~1.8 min after the burst).
We did not find any new point source within the XRT error circle
(Holland et al., GCNC 14607) in all the three bands.

Photometric results of the OT are listed below.
We used GSC2.3 catalog for flux calibration.

#T0+[day]  MID-UT    T-EXP[sec]   g'     Rc     Ic
-----------------------------------------------------
0.04312    18:10:59    6360.0   >20.5  >20.4  >19.1
-----------------------------------------------------
T0+ : Elapsed time after the burst [day]
T-EXP: Total Exposure time [sec]