[vsnet-grb-info 14779] GRB 140408A: MITSuME Akeno Optical observation

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  16093
SUBJECT: GRB 140408A: MITSuME Akeno Optical observation
DATE:    14/04/10 05:21:39 GMT
FROM:    Taketoshi Yoshii at Tokyo Tech  <yoshii.t.ac at m.titech.ac.jp>

H. Ohuchi, T. Yoshii, Y. Saito, Y. Tachibana, S. Kurita, Y. Yatsu, and N. Kawai (Tokyo Tech)
report on behalf of the MITSuME collaboration:

We observed the field of GRB 140408A (V. D'Elia et al., GCN Circular #16082) with the 
optical three color (g, Rc, and Ic) CCD cameras attached to the MITSuME 50 cm
telescope of Akeno Observatory, Yamanashi, Japan.

The observation started on 2014-04-08 17:03:08.6 UT ( 3.8h after the burst).
We did not find any new point source within the enhanced XRT circle (Evans et al., GCNC 16085) in all the three bands.
The measured magnitudes were listed below.

T0+[sec]    MID-UT    T-EXP[sec]    g'         Rc         Ic
$B!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=(B-
17105     18:00:59     6300        >20.1    >19.6     >19.1
$B!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=!=(B-
T0+ : Elapsed time after the burst
T-EXP: Total Exposure time
We used GSC2.3 catalog for flux calibration.