GCN Circular 18819
Subject
GRB 160104A: MITSuME Okayama Ks-band upper-limit
Date
2016-01-04T14:10:03Z (9 years ago)
From
Kenshi Yanagisawa at OAO/NAOJ <yanagi@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 160104A (Melandri et al., GCN 18815)
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 11:46 UT on 4th January, 0.38h after
the BAT trigger, to 12:49 UT. The total exposure of 24.0 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=16.8 (Vega, S/N=3). The photometric calibration was made
against 2MASS field stars.
T0+[sec] MID-UT T-EXP[sec] Ks
---------------------------------------------------
+3,235 12:18 1440.0 >16.8
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T0+ : Elapsed time after the burt [sec]
T-EXP: Total Exposure time [sec]