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GCN Circular 18267

Subject
GRB 150910A: MITSuME Okayama Optical Observation
Date
2015-09-10T11:41:03Z (9 years ago)
From
Daisuke Kuroda at OAO/NAOJ <dikuroda@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 and OISTER collaboration:

We observed the field of GRB 150910A (Pagani et al., GCNC 18264)
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 2015-09-10 10:20:44 UT (~1.3 h after
the burst). We detected the previously reported afterglow (Pagani
et al., GCNC 18264; Zheng and Filippenko, GCNC 18265; Dichiara
et al., GCNC 18266) in all the three bands.

Photometric results of the OT are listed below.
We used SDSS-DR7 catalog for flux calibration.

#T0+[day]  MID-UT    T-EXP[sec]   g'  g'_err  Rc  Rc_err  Ic  Ic_err
-----------------------------------------------------------------------
0.05630    10:25:52     540.0     17.6 0.2    18.4 0.2    17.0 0.1
------------------------------------------------------------------------
T0+ : Elapsed time after the burst [day]
T-EXP: Total Exposure time [sec]
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