[vsnet-grb-info 12596] GRB 121108A: MITSuME Ishigakijima upper limits

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  13956
SUBJECT: GRB 121108A: MITSuME Ishigakijima upper limits
DATE:    12/11/09 01:38:02 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 121108A (Ukwatta et al., GCNC 13952)
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 2012-11-08 18:29:39 UT (~42 min after the
burst). We did not find any new point source within the XRT circle
(Ukwatta et al., GCNC 13952) in all the three bands.

Three sigma upper limits of the OT are listed below. We used
GSC2.3 catalog for flux calibration.

T0+[day]   MID-UT   T-EXP[sec]    g'     Rc     Ic
------------------------------------------------------
0.06526    19:21:37    5820.0   >22.6  >22.0  >20.0
------------------------------------------------------
T0+ : Elapsed time after the burst [day]
T-EXP: Total Exposure time [sec]