GCN Circular 15432
Subject
LOAO B,R Observation of GRB131030A
Event
Date
2013-11-01T13:34:48Z (13 years ago)
From
Changsu Choi at Seoul Nat U <changsu@astro.snu.ac.kr>
Myungshin Im and Changsu Choi (CEOU/Seoul National Univ.), on behalf of a
larger collaboration:
We observed GRB 131030A (Troja et al., GCN 15402) in B,R band using a 1-m
telescope at Mt. Lemmon Optical Observatory (LOAO) in Arizona, US.
The observation started at 2013-10-31 01:42:46 UT, or about 4.78 hours after
the BAT alert.
In all of the BR images, we identify the afterglow, with approximate
magnitudes B ~ 19.29 +/-0.07, R ~ 18.88 +/- 0.09 mag (first epoch),
calibrated against stars in vicinity based on USNO-B1 photometry.
We also confirm fading of the object from serial set of data we took about 4
and 6 hours later.
Further observations are planned.
We thank the LOAO operator, Jae-Hyuk Yoon and In-Kyung Baek for performing
the observation.
[GCN OPS NOTE(01nov13): This was delayed in distribution by 8 hours
because a new entry had to be added to the list.]