TITLE: GCN CIRCULAR NUMBER: 24476 SUBJECT: LIGO/Virgo S190510g: Dabancheng/HMT Follow-Up Observations DATE: 19/05/11 09:53:20 GMT FROM: Dong Xu at NAOC/CAS Z.P. Zhu, D. Xu, B.Y. Yu, T.M. Zhang, X. Zhou, H.J. Wang, C.Z. Cui, D.W. Fan, Y.F. Xu (NAOC), X. Gao (Urumqi No.1 Senior High School), S. Yang (INAF-OAPd), H.B. Zhao, B. Li (PMO), J.Z. Liu, H.B. Niu (XAO), J.R. Mao, J.M. Bai (YNAO), report on behalf of the GWFUNC collaboration: We performed the search for the optical counterpart of LIGO/Virgo S190510g (LVC, GCN 24442) using the Half-Meter Telescope (HMT) located at Dabancheng, Xinjiang, China. Observations started at 16:00:00 UT on 2019-05-10 and ended at 22:32:00 UT on 2019-05-10, and the 60x40 arcmin^2 unfiltered imager scanned relatively high probability regions of the LVC localization that are accessible to HMT. The total area is about 97 deg^2, and listed below are the field centers observed. RA DEC 13:31:59 +00:39:25 13:31:59 +00:40:37 13:31:59 +00:40:37 13:32:00 +00:00:36 13:32:29 -01:19:26 13:32:30 +01:20:38 13:32:29 -01:59:27 13:32:30 +02:00:39 13:32:29 -02:39:28 13:32:29 +02:40:40 13:33:58 -03:19:30 13:33:59 +03:20:42 13:33:58 -03:59:31 13:33:59 +04:00:43 13:33:58 -04:39:32 13:33:59 +04:40:44 13:36:00 +00:39:25 13:36:00 +00:00:36 13:36:00 +00:40:37 13:36:00 +00:00:36 13:36:00 +00:40:37 13:36:29 -01:19:26 13:36:30 +01:20:38 13:36:29 -01:59:27 13:36:30 +02:00:39 13:36:29 -02:39:28 13:36:30 +02:40:40 13:36:28 -05:19:33 13:36:27 -05:59:34 13:36:27 -06:39:36 13:37:59 -03:19:30 13:37:59 -03:59:31 13:37:59 -04:39:32 13:38:00 +03:20:42 13:38:00 +04:00:43 13:38:00 +04:40:44 13:40:00 +00:39:25 13:40:00 +00:00:36 13:40:00 +00:40:37 13:40:00 +00:00:36 13:40:00 +00:40:37 13:40:29 -01:19:26 13:40:30 +01:20:38 13:40:29 -01:59:27 13:40:30 +02:00:39 13:40:29 -02:39:28 13:40:30 +02:40:40 13:40:29 -05:19:33 13:40:29 -05:59:34 13:40:29 -06:39:36 13:41:59 -03:19:30 13:41:59 -03:59:31 13:41:59 -04:39:32 13:42:00 +03:20:42 13:42:00 +04:00:43 13:42:01 +04:40:44 13:43:59 +00:39:25 13:43:59 +00:40:37 13:43:59 +00:40:37 13:44:00 +00:00:36 13:44:29 -01:19:26 13:44:30 +01:20:38 13:44:29 -01:59:27 13:44:30 +02:00:39 13:44:29 -02:39:28 13:44:30 +02:40:40 13:44:30 -05:19:33 13:44:30 -05:59:34 13:44:30 -06:39:36 13:48:00 +00:39:25 13:48:00 +00:00:36 13:48:00 +00:40:37 13:48:00 +00:00:36 13:48:00 +00:40:37 13:48:30 -01:19:26 13:48:30 +01:20:38 13:48:30 -01:59:27 13:48:30 +02:00:39 13:48:30 -02:39:28 13:48:30 +02:40:40 13:52:00 +00:39:25 13:52:00 +00:00:36 13:52:00 +00:40:37 13:52:00 +00:00:36 13:52:00 +00:40:37 13:52:30 -01:19:26 13:52:30 +01:20:38 13:52:30 -01:59:27 13:52:30 +02:00:39 13:52:30 -02:39:28 13:52:30 +02:40:40 14:22:06 +03:20:42 14:22:06 +04:00:43 14:22:06 +04:40:44 14:24:45 +05:20:45 14:24:45 +06:00:46 14:24:45 +06:40:48 14:26:07 +03:20:42 14:26:07 +04:00:43 14:26:07 +04:40:44 14:28:46 +05:20:45 14:28:46 +06:00:46 14:28:46 +06:40:48 14:30:07 +03:20:42 14:30:07 +04:00:43 14:30:08 +04:40:44 14:32:32 +01:20:38 14:32:32 +02:00:39 14:32:32 +02:40:40 14:32:47 +05:20:45 14:32:48 +06:00:46 14:32:48 +06:40:48 14:32:31 +08:40:51 14:34:08 +03:20:42 14:34:08 +04:00:43 14:34:08 +04:40:44 14:36:32 +01:20:38 14:36:32 +02:00:39 14:36:32 +02:40:40 14:36:33 +07:20:49 14:36:33 +08:00:50 14:36:34 +08:40:51 14:38:09 +03:20:42 14:38:09 +04:00:43 14:38:09 +04:40:44 14:40:32 +01:20:38 14:40:32 +02:00:39 14:40:32 +02:40:40 14:40:36 +07:20:49 14:40:35 +08:00:50 14:40:35 +08:40:51 14:42:09 +03:20:42 14:42:09 +04:00:43 14:42:09 +04:40:44 14:44:52 +06:40:48 14:44:38 +07:20:49 14:44:38 +08:00:50 14:44:38 +08:40:51 14:46:10 +03:20:42 14:46:10 +04:00:43 14:46:10 +04:40:44 14:48:53 +05:20:45 14:48:53 +06:00:46 14:48:53 +06:40:48 14:48:40 +07:20:49 14:48:40 +08:00:50 14:48:41 +08:40:51 14:49:33 +10:40:55 14:50:10 +03:20:42 14:50:10 +04:00:43 14:50:10 +04:40:44 14:52:54 +05:20:45 14:52:54 +06:00:46 14:52:54 +06:40:48 14:52:43 +07:20:49 14:52:43 +08:00:50 14:52:42 +08:40:51 14:53:36 +09:20:52 14:53:37 +10:00:54 14:53:37 +10:40:55 14:54:11 +03:20:42 14:54:11 +04:00:43 14:54:11 +04:40:44 14:56:55 +05:20:45 14:56:56 +06:00:46 14:56:56 +06:40:48 14:56:45 +07:20:49 14:56:45 +08:00:50 14:56:45 +08:40:51 15:00:47 +07:20:49 15:00:47 +08:00:50 15:00:48 +08:40:51 Data analysis is ongoing. Optical transients from the above fields, if interesting, will be reported later.