{
  "bibcode": "2017GCN.21497....1U",
  "body": "Yousuke Utsumi (Hiroshima Univ.), Nozomu Tominaga (Konan Univ.),\nMichitoshi Yoshida, Masaomi Tanaka, Tsuyoshi Terai (NAOJ),\nRyou Ohsawa, Tomoki Morokuma (Univ. of Tokyo),\nKouji Ohta (Kyoto Univ.), Koji S. Kawabata (Hiroshima Univ.)\non behalf of J-GEM collaboration\n\nWe report optical follow-up observations for G297595\nwith Hyper Suprime-Cam (HSC, 1.7 deg^2 FOV) attached to 8.2-m Subaru Telescope.\n\nWe performed Y-band imaging observations of the high probability region\nusing the updated skymap (LALInference.fits) on 2017-08-16 UT.\nWe covered about 40 deg^2 with 30 pointings.\nEach field was visited twice with the total exposure time of 220 sec\n(110 sec x 2).\nAn expected 5-sigma limiting magnitude is about 23 mag AB.\n\nThe observed fields are listed below.\n\nID UT                  RA          DEC          Exp    Filter\n00 2017-08-16T12:32:25 03h19m45.9s -35d40m51.6s 110.0s HSC-Y\n01 2017-08-16T12:34:46 03h16m57.2s -36d25m09.4s 110.0s HSC-Y\n02 2017-08-16T12:37:07 03h14m08.5s -37d09m52.4s 110.0s HSC-Y\n03 2017-08-16T12:39:27 03h11m19.8s -37d55m02.3s 110.0s HSC-Y\n04 2017-08-16T12:41:48 03h19m46.0s -37d09m52.3s 110.0s HSC-Y\n05 2017-08-16T12:44:08 03h16m57.3s -37d55m02.4s 110.0s HSC-Y\n06 2017-08-16T12:46:29 03h14m08.6s -38d40m40.4s 110.0s HSC-Y\n07 2017-08-16T12:48:50 03h11m19.9s -39d26m47.6s 110.0s HSC-Y\n08 2017-08-16T12:51:11 03h08m31.2s -40d13m26.1s 110.0s HSC-Y\n09 2017-08-16T12:53:32 03h05m42.5s -41d00m36.7s 110.0s HSC-Y\n10 2017-08-16T12:55:53 03h19m46.1s -38d40m40.2s 110.0s HSC-Y\n11 2017-08-16T12:58:15 03h02m53.8s -41d48m21.6s 110.0s HSC-Y\n12 2017-08-16T13:00:35 03h16m57.4s -39d26m47.5s 110.0s HSC-Y\n13 2017-08-16T13:02:57 03h14m08.7s -40d13m25.9s 110.0s HSC-Y\n14 2017-08-16T13:05:18 03h00m05.2s -42d36m19.7s 110.0s HSC-Y\n15 2017-08-16T13:07:39 03h11m20.0s -41d00m36.6s 110.0s HSC-Y\n16 2017-08-16T13:09:59 03h08m31.3s -41d48m21.6s 110.0s HSC-Y\n17 2017-08-16T13:12:20 03h05m48.0s -42d36m19.7s 110.0s HSC-Y\n18 2017-08-16T13:14:41 03h19m46.2s -40d13m25.8s 110.0s HSC-Y\n19 2017-08-16T13:17:02 03h16m57.5s -41d00m36.6s 110.0s HSC-Y\n20 2017-08-16T13:19:23 03h02m59.4s -43d24m09.2s 110.0s HSC-Y\n21 2017-08-16T13:21:44 03h14m08.9s -41d48m21.4s 110.0s HSC-Y\n22 2017-08-16T13:24:04 03h00m05.3s -44d11m50.0s 110.0s HSC-Y\n23 2017-08-16T13:26:25 03h11m30.9s -42d36m19.7s 110.0s HSC-Y\n24 2017-08-16T13:28:46 02h57m05.4s -44d59m22.5s 110.0s HSC-Y\n25 2017-08-16T13:31:06 03h08m47.8s -43d24m09.1s 110.0s HSC-Y\n26 2017-08-16T13:33:28 02h53m59.3s -45d46m46.8s 110.0s HSC-Y\n27 2017-08-16T13:35:49 03h05m59.4s -44d11m49.9s 110.0s HSC-Y\n28 2017-08-16T13:38:10 03h17m13.7s -42d36m19.7s 110.0s HSC-Y\n29 2017-08-16T13:40:31 03h03m05.4s -44d59m22.5s 110.0s HSC-Y\n00 2017-08-16T13:42:59 03h19m36.4s -35d41m22.6s 110.0s HSC-Y\n01 2017-08-16T13:45:20 03h16m47.6s -36d25m40.4s 110.0s HSC-Y\n02 2017-08-16T13:47:41 03h13m58.8s -37d10m23.5s 110.0s HSC-Y\n03 2017-08-16T13:50:01 03h11m10.0s -37d55m33.4s 110.0s HSC-Y\n04 2017-08-16T13:52:22 03h19m36.3s -37d10m23.4s 110.0s HSC-Y\n05 2017-08-16T13:54:43 03h16m47.5s -37d55m33.4s 110.0s HSC-Y\n06 2017-08-16T13:57:04 03h13m58.7s -38d41m11.4s 110.0s HSC-Y\n07 2017-08-16T13:59:25 03h11m09.9s -39d27m18.7s 110.0s HSC-Y\n08 2017-08-16T14:01:46 03h08m21.1s -40d13m57.0s 110.0s HSC-Y\n09 2017-08-16T14:04:07 03h05m32.3s -41d01m07.7s 110.0s HSC-Y\n10 2017-08-16T14:06:30 03h19m36.2s -38d41m11.3s 110.0s HSC-Y\n11 2017-08-16T14:08:51 03h02m43.5s -41d48m52.6s 110.0s HSC-Y\n12 2017-08-16T14:11:12 03h16m47.4s -39d27m18.6s 110.0s HSC-Y\n13 2017-08-16T14:13:34 03h13m58.6s -40d13m57.0s 110.0s HSC-Y\n14 2017-08-16T14:15:55 02h59m54.6s -42d36m50.8s 110.0s HSC-Y\n15 2017-08-16T14:18:17 03h11m09.8s -41d01m07.7s 110.0s HSC-Y\n16 2017-08-16T14:20:38 03h08m21.0s -41d48m52.6s 110.0s HSC-Y\n17 2017-08-16T14:22:59 03h05m37.5s -42d36m50.8s 110.0s HSC-Y\n18 2017-08-16T14:25:20 03h19m36.1s -40d13m56.9s 110.0s HSC-Y\n19 2017-08-16T14:27:41 03h16m47.3s -41d01m07.7s 110.0s HSC-Y\n20 2017-08-16T14:30:02 03h02m48.8s -43d24m40.2s 110.0s HSC-Y\n21 2017-08-16T14:32:23 03h13m58.5s -41d48m52.6s 110.0s HSC-Y\n22 2017-08-16T14:34:44 02h59m54.5s -44d12m21.0s 110.0s HSC-Y\n23 2017-08-16T14:37:05 03h11m20.4s -42d36m50.7s 110.0s HSC-Y\n24 2017-08-16T14:39:26 02h56m54.4s -44d59m53.5s 110.0s HSC-Y\n25 2017-08-16T14:41:48 03h08m37.2s -43d24m40.2s 110.0s HSC-Y\n26 2017-08-16T14:44:08 02h53m48.3s -45d47m17.8s 110.0s HSC-Y\n27 2017-08-16T14:46:29 03h05m48.6s -44d12m20.9s 110.0s HSC-Y\n28 2017-08-16T14:48:50 03h17m03.2s -42d36m50.7s 110.0s HSC-Y\n29 2017-08-16T14:51:11 03h02m54.4s -44d59m53.5s 110.0s HSC-Y",
  "circularId": 21497,
  "createdOn": 1502896565000,
  "email": "youtsumi@hiroshima-u.ac.jp",
  "subject": "LIGO/Virgo G297595: Subaru Hyper Suprime-Cam follow-up observations",
  "submitter": "Yousuke Utsumi at Hiroshima Astrophys. Science Center  <youtsumi@hiroshima-u.ac.jp>",
  "eventId": "LIGO/Virgo G297595"
}