[vsnet-grb-info 10716] GRB110709A: MITSuME Ishigakijima Optical upper limits

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  12139
SUBJECT: GRB110709A: MITSuME Ishigakijima Optical upper limits
DATE:    11/07/10 14:07:27 GMT
FROM:    Daisuke Kuroda at OAO/NAOJ  <dikuroda at oao.nao.ac.jp>

D. Kuroda (OAO, NAOJ),  H. Hanayama, T. Miyaji, J. Watanabe (IAO, NAOJ),
K. Yanagisawa (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 110709A (Holland et al., GCN 12118)
with the optical three color (g', Rc and Ic) CCD camera attached
to the Murikabushi 1m telescope of Ishigakijima Astronomical
Observatory.

The observation started on 15:27:30 UT (~3 min after the burst).
We did not find any new point source within the Enhanced XRT circle
(Osborne, et al., GCN 12123) in all the three bands.

Three sigma upper limits of the OT are listed below. We used
SDSS catalog for flux calibration.


T0+[day]   MID-UT   T-EXP[sec]    g'     Rc     Ic
------------------------------------------------------
0.00487    15:31:30     420.0    >19.9  >19.8  >18.7
------------------------------------------------------
T0+ : Elapsed time after the burst [day]
T-EXP: Total Exposure time [sec]