[vsnet-grb-info 11778] GRB 120327A: MITSuME Ishigakijima Optical Upper Limits at 1 day afterthe burst

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  13169
SUBJECT: GRB 120327A: MITSuME Ishigakijima Optical Upper Limits at 1 day afterthe burst
DATE:    12/03/29 14:06:52 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 120327A (Sbarufatti et al., GCNC 13123)
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 2012-03-28 17:27:54 UT (~1.61 days after the
burst). We could not detect the previously reported afterglow
(Klotz et al., GCNC 13124; Smith et al., GCNC 13125; Kuroda et al.,
GCNC 13156) 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
----------------------------------------------------------------------
1.62756    17:58:57   1500.0    >20.5  >20.2  >19.0
----------------------------------------------------------------------
T0+ : Elapsed time after the burst [day]
T-EXP: Total Exposure time [sec]