[vsnet-grb-info 11764] GRB 120326A: MITSuME Ishigakijima Optical Observation

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  13155
SUBJECT: GRB 120326A: MITSuME Ishigakijima Optical Observation
DATE:    12/03/28 14:19:34 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 120326A (Siegel et al., GCNC 13105)
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 2012-03-27 16:59:18 UT (~1.65 days after the
burst). We detected the previously reported afterglow (Klotz et al.,
GCNC 13107; Guidorzi, GCNC 13111) in g' and Rc 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'  g'_err  Rc  Rc_err   Ic
----------------------------------------------------------------------
1.68494    17:46:48    960.0     20.3  0.2   19.9  0.2   >18.93
----------------------------------------------------------------------
T0+ : Elapsed time after the burst [day]
T-EXP: Total Exposure time [sec]