GCN Circular 17648
Subject
GRB 150323C: Nishi-Harima NIR Observations
Event
Date
2015-03-26T19:33:31Z (11 years ago)
From
Taketoshi Yoshii at Tokyo Tech <yoshii.t.ac@m.titech.ac.jp>
S. Honda. J. Takahashi, Y. Takagi, K. Morihana, Y. Itoh
(Univ. of Hyogo), and Y. Saito (Tokyo Tech)
report on behalf of Nayuta team and OISTER collaboration:
We observed the field of GRB 150323C (Amaral-Rogers et al., GCN 17621)
with Nishiharima Infrared Camera (NIC) attached to the Nayuta 2-m
telescope at the Nishi-Harima Astronomical Observatory.
The observations were started at 17:30 UT on 2015-03-23.
We detected the near-infrared afterglow in J, H and Ks bands.
Photometric results of our observations are shown below.
We used 2MASS 12502614+5011480, 12502605+5011289, 12503202+5010217,
and 12503649+5012012 as reference stars for photometry.
# MID-UT Tmid-T0 T-EXP J_mag H_mag Ks_mag
--------------------------------------------------------------------------------
17:33:16 28 1200 18.22 +/- 0.10 17.25 +/- 0.10 16.44 +/- 0.13
17:59:27 54 1200 18.68 +/- 0.11 17.59 +/- 0.11 16.94 +/- 0.14
18:25:32 80 1200 19.40 +/- 0.20 17.77 +/- 0.13 17.23 +/- 0.14
---------------------------------------------------------------------------------
Tmid-T0: Elapsed time after the burst (minutes)
T-EXP: Total Exposure time (seconds)