{
  "subject": "LIGO/Virgo G268556: observation regions by Project Mini-GWAC of SVOM",
  "version": 2,
  "eventId": "LIGO/Virgo G268556",
  "editedOn": 1731773636091,
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>",
  "submitter": "Chao Wu at NAOC  <wuchao.lamost@gmail.com>",
  "body": "J.Y. Wei (NAOC), X.H. Han (NAOC), N.Leroy (LAL), C. WU (NAOC), S. Antier\n(LAL),\nL.P. Xin (NAOC), X.M. Meng (NAOC), L. Huang (NAOC), Y. Xu (NAOC),\nH.B. Cai (NAOC), J. Wang (NAOC), X.M. Lu (NAOC), Y.L. Qiu (NAOC),\nJ.S. Deng (NAOC), L. Cao (NAOC), S. Wang (NAOC), E.W.Liang (GXU),\nY.G. Yang (HBNU), B. Cordier (CEA), S.N. Zhang (NAOC), S. Basa (LAM),\nB.B. Wu (IHEP), Jean-Luc Atteia (IRAP), D. Götz (CEA), C. Lachaud (APC)\non behalf of the SVOM Gravitational Astronomy group report:\n\nWe observed about 5600 square degree (14 sky regions) of the skymap of the\nadvanced  LIGO trigger G268556, with Mini-GWAC (Mini Ground Wide Angle\nCamera), at Xinglong Observatory of NAOC equipped with U9000 camera\n(FOV~400 square degree/camera). Mini-GWAC, as a part of ground instruments\nof SVOM mission, comprises 12 wide field angle cameras (aperture=7cm),\nworking with unfiltered band. The observations are operated in time-series\nmode, taking one exposure in 15 seconds (10s exposure + 5s readout). The\nlimit magnitude is ~12 mag in R band. We estimate a 84.4% prior probability\nthat these 14 regions contain the true location of the source.  The\ncoordinates of the 14 regions and observation time are list following:\n\nRa                 Dec            Camera_ID start-obs(UTC) end-obs(UTC)\nCamera_ID  start-obs(UTC) end-obs(UTC)\n\n07:46:49.578  +29:35:33.46  C1        12:30:41.1     13:49:41.5   C3\n  19:14:39.9     21:17:22:8\n07:48:54.239  +10:34:56.09  C2        12:30:41.1     13:49:49.5   C4\n  19:14:39.9     21:17:36.8\n\n09:10:51.599  +29:36:54.60  C1        13:50:29.3     15:14:52.1\n\n09:12:54.096  +10:36:25.88  C2        13:50:29.3     15:14:44.2\n\n\n10:34:57.404  +29:33:02.67  C1        15:15:28.4     16:22:20.7\n\n10:36:57.072  +10:32:32.51  C2        15:15:28.4     16:22:07.9\n\n\n09:17:21.644  +69:37:03.40  C1        19:14:27.3     22:39:37.7\n\n09:21:25.794  +50:35:59.26  C2        19:14:27.3     22:39:25.3\n\n\n11:52:01.006  +70:06:03.83  C3        16:21:28.7     17:57:31.9   C5\n  19:14:32.9     22:39:31.9\n12:02:07.741  +50:03:10.98  C4        16:22:17.5     17:57:30.2   C6\n  19:14:32.9     22:39:25.2\n\n06:34:42.357  +69:28:01.79  C5        14:55:58.2     17:57:22.7\n06:40:16.529  +50:28:28.89  C6        14:56:10.4     17:57:35.7\n\n14:34:10.239  +70:01:52.84  C7        19:14:55.3     22:39:18.3\n14:44:41.102  +49:56:05.18  C8        19:14:55.3     22:39:21.9\n\nMini-GWAC is working in sky survey mode. The first image was taken 2 hours\n20 minutes after event.  No any significant transient is found in our\nonline pipeline.\nThe image analysis is ongoing in detailed processing with our offline\npipeline. Further observations  of these fields are planned.",
  "circularId": 20369,
  "bibcode": "2017GCN.20369....1W",
  "email": "wuchao.lamost@gmail.com",
  "format": "text/plain",
  "createdOn": 1483631565000
}