[vsnet-grb-info 17873] GRB 160417A: MITSuME Okayama upper limits

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  19319
SUBJECT: GRB 160417A: MITSuME Okayama upper limits
DATE:    16/04/17 14:44:24 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 MITSuME and OISTER collaboration:

We observed the field of GRB 160417A (D'Avanzo et al., GCNC 19316)
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 2016-04-17 11:06:00 UT (~6.7 h after
the burst). We could not detect the previously reported afterglow
(D'Avanzo et al., GCNC 19316; Zheng et al., GCNC 19317)
in all the three bands.

Three sigma upper limits of the OT are listed below.
We used SDSS-DR8 catalog for flux calibration.

#T0+[day]  MID-UT    T-EXP[sec]   g'    Rc     Ic
-----------------------------------------------------
0.32136    12:06:26    5640.0   >19.7  >19.7  >18.9
-----------------------------------------------------
T0+ : Elapsed time after the burst [day]
T-EXP: Total Exposure time [sec]