[vsnet-grb-info 18034] GRB 160601A: MITSuME Okayama Ks-band upper-limit
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Thu Jun 2 02:11:09 JST 2016
TITLE: GCN CIRCULAR
NUMBER: 19482
SUBJECT: GRB 160601A: MITSuME Okayama Ks-band upper-limit
DATE: 16/06/01 17:09:41 GMT
FROM: Kenshi Yanagisawa at OAO/NAOJ <yanagi at oao.nao.ac.jp>
K. Yanagisawa, D. Kuroda, Y. Shimizu, H. Izumiura(OAO/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 160601A (Kocevski et al., GCN 19478)
in Ks-band with a wide-field near infrared imager at Okayama
Astrophysical Observatory (Japan). The imager has effective
aperture of 0.91 m.
Observations started from 14:57 UT on 1st June, 14 min after
the BAT trigger, to 15:22 UT. The total exposure of 10.0 min
was successfully obtained.
In our co-add image, we did not find any new point source within
the XRT error circle down to the limiting magnitude of
Ks=16.1 (Vega, S/N=3). The photometric calibration was made
against 2MASS field stars.
T0+[sec] MID-UT T-EXP[sec] Ks
---------------------------------------------------
+1,560 15:09 600.0 >16.1
---------------------------------------------------
T0+ : Elapsed time after the burt [sec]
T-EXP: Total Exposure time [sec]
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