[vsnet-grb-info 10058] GRB110102A: MITSuME Okayama Optical Observation

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  11513
SUBJECT: GRB110102A: MITSuME Okayama Optical Observation
DATE:    11/01/03 10:09:15 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 110102A (Oates et al., GCN 11509)
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 2011-01-02 20:08:45 UT (~1.3 hours after
the burst).  We detected the afterglow candidate within the
enhanced XRT error circle (Goad et al., GCNC 11510) in all the three
bands.

Photometric results are listed below. We used SDSS catalog for flux
calibration.

#T0+[day]  MID-UT    T-EXP[sec]   g'  g'_err   Rc  Rc_err   Ic  Ic_err
----------------------------------------------------------------------
0.06851    20:31:04  2340.0      20.0  0.4    19.6  0.3    18.3  0.2
----------------------------------------------------------------------
T0+ : Elapsed time after the burst [day]
T-EXP: Total Exposure time [sec]