TITLE: GCN CIRCULAR NUMBER: 24336 SUBJECT: LIGO/Virgo S190426c: Continued LOAO Observation DATE: 19/04/29 03:13:42 GMT FROM: Gregory SungHak Paek at SNU Gregory S.H. Paek (SNU), Myungshin Im (SNU), Hyun-Il Sung (KASI), Gu Lim (SNU), Joonho Kim (SNU), Sungyong Hwang (SNU), Bomi Park (SNU), Sophia Kim (SNU), Changsu Choi (SNU), Chung-Uk Lee (KASI), Seung-Lee Kim (KASI), Hyung Mok Lee (KASI), on behalf of a larger collaboration We observed 17 host galaxy candidates with the 1.0-m telescope at the Lemonsan Optical Astronomical Observatory(LOAO) in the 90% updated localization area of S190426c, detected by LIGO/Virgo (GCN #24237). The observation started at 2019-04-28 09:59:34.500, and the images were taken twice in R-band with 120 sec exposure time. No obvious transient has been identified to a preliminary 3-sigma depth of R=19.6 AB mag. The list of the inspected targets is given below. NAME RA DEC 2MASS+00320124+8337292 00:32:01.200 +83:37:29.30 2MASS+00431317+8418363 00:43:13.200 +84:18:36.30 2MASS+00432208+8527102 00:43:22.100 +85:27:10.30 2MASS+00450100+8538272 00:45:01.000 +85:38:27.20 2MASS+00533469+8539080 00:53:34.700 +85:39:08.10 2MASS+00592185+8521346 00:59:21.900 +85:21:34.70 2MASS+01042304+8335416 01:04:23.000 +83:35:41.70 2MASS+01051541+8511586 01:05:15.400 +85:11:58.60 2MASS+01065962+8521066 01:06:59.600 +85:21:06.70 2MASS+01073984+8711285 01:07:39.800 +87:11:28.60 2MASS+01125057+8546555 01:12:50.600 +85:46:55.60 2MASS+01160660+8459035 01:16:06.600 +84:59:03.50 2MASS+01190649+8504131 01:19:06.500 +85:04:13.20 2MASS+01264881+8506094 01:26:48.800 +85:06:09.50 2MASS+01333891+8532521 01:33:38.900 +85:32:52.20 PGC3005 00:52:03.700 +85:23:32.60 PGC3085929 00:41:52.300 +84:22:56.10 We thank the LOAO opertator for performing the observation.