GCN Circular 16149
Subject
GRB 140419A, LOAO R-band observations
Date
2014-04-23T12:04:51Z (11 years ago)
From
Changsu Choi at Seoul Nat U <changsu@astro.snu.ac.kr>
Changsu Choi, Myungshin Im (CEOU/SNU), Hyun-Il Sung (KASI), and Yuji Urata
(NCU), on behalf of EAFON
We observed the field of GRB 140419A Swift GRB 140419A (Marshall et al., GCN
16118) in R-band using the 1-m telescope at Mt. Lemmon Optical Observatory
(LOAO) in Arizona, US
We obtained R-band images at two epochs on Apr. 19 and on Apr. 21.
We marginally identify the afterglow in a stacked image for each night.
The photometry is based on R1-mag of USNO-B1 stars in the observed field.
Details of Photometry are below:
date UT(mid time) Filter mag
2014/04/19 07:30:51 R 18.64 +/-0.29
2014/04/21 03:39:38 R 21.43 +/-0.27
We thank the LOAO operator, Jae-Hyuk Yoon for performing the observation.