GCN Circular 12233
Subject
GRB110801A: MITSuME Ishigakijima Optical Observation
Date
2011-08-02T05:13:46Z (13 years ago)
From
Daisuke Kuroda at OAO/NAOJ <dikuroda@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 110801A (Pasquale et al., GCNC 12228)
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 2011-08-01 19:53:51 UT (~4 min after the burst).
We detected the previously reported afterglow (Pasquale et al.,
GCNC 12228; Zheng and Guver, GCNC 12229; Guelbenzu et al., GCNC 12230)
in all the three 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 Ic_err
----------------------------------------------------------------------
0.00323 19:54:21 60.0 16.16 0.07 15.14 0.04 14.44 0.04
0.00404 19:55:31 60.0 15.35 0.06 14.29 0.04 13.57 0.04
0.00485 19:56:41 60.0 15.38 0.06 14.28 0.04 13.56 0.04
0.00731 20:00:14 60.0 15.54 0.06 14.51 0.04 13.79 0.04
0.00976 20:03:45 60.0 15.71 0.07 14.67 0.04 13.98 0.04
0.01222 20:07:18 60.0 15.77 0.07 14.79 0.04 14.12 0.04
0.01466 20:10:48 60.0 15.89 0.07 14.91 0.04 14.24 0.04
----------------------------------------------------------------------
T0+ : Elapsed time after the burst [day]
T-EXP: Total Exposure time [sec]