TITLE: GCN CIRCULAR NUMBER: 25342 SUBJECT: LIGO/Virgo S190814bv: KMTNet observation DATE: 19/08/15 15:10:26 GMT FROM: Joonho Kim at Seoul National U. Joonho Kim (SNU), Myungshin Im (SNU), Chung-Uk Lee (KASI), Seung-Lee Kim (KASI), Gregory S. H. Paek (SNU), Gu Lim (SNU), Changsu Choi (SNU), Sungyong Hwang (SNU), Sophia Kim (SNU), Bomi Park (SNU), Hyung Mok Lee (KASI), on behalf of a larger collaboration We observed the 90% credible region (~38 deg^2) of the localization map of the NSBH merger candidate, S190814bv (LIGO/Virgo GCN 25324) with KMTNet, Chile (CTIO) starting at 2019-08-15 05:39:26 UT. The images were taken in R-band with 240 sec exposure time to the depth of R ~ 22 mag (5-sigma detection). The central coordinate of each 2 deg x 2 deg pointing is given below. The search for transients is ongoing. target ra dec G347305-0 00:51:43.4 -25:38:02 G347305-1 00:49:44.8 -23:38:02 G347305-2 01:29:07.3 -31:38:02 G347305-3 01:00:31.5 -25:38:02 G347305-4 00:41:04.7 -23:38:02 G347305-5 00:42:55.4 -25:38:02 G347305-6 00:58:24.8 -23:38:02 G347305-7 00:54:03.2 -27:38:02 G347305-8 00:42:44.8 -21:38:02 G347305-9 01:36:01.5 -33:38:02 G347305-10 00:51:17.7 -21:38:02 G347305-11 01:26:31.5 -33:38:02 G347305-12 01:19:49.4 -31:38:02 G347305-13 01:03:00.1 -27:38:02 G347305-14 01:38:25.1 -31:38:02 G347305-15 00:45:06.2 -27:38:02 G347305-16 01:21:13.4 -29:38:02 G347305-17 01:30:20.3 -29:38:02 We thank the KMTNet observers for performing the observation. -- -- Joonho Kim joonho@astro.snu.ac.kr Graduate Student, Astronomy Program, Dept. of Physics & Astronomy, Seoul National University, Seoul, Korea ᐧ