{
  "bibcode": "2019GCN.24085....1X",
  "body": "Dong Xu, Zi-Pei Zhu, Bang-Yao Yu (NAOC), Xing Gao (Urumqi No.1 Senior \nHigh School), Sheng Yang (INAF-OAPd, UC Davis), Hai-Bin Zhao, Bin Li \n(PMO), Jin-Zhong Liu, Hu-Biao Niu, Jun-Hui Liu, Xuan Zhang (XAO), \nJi-Rong Mao, Jin-Ming Bai (YNAO), report on behalf of the GWFUNC \ncollaboration:\n\nWe performed the search for the optical counterpart of LIGO/Virgo \nS190408an (Singer et al. GCN 24069) using the Half-Meter Telescope (HMT) \nlocated at Dabancheng, Xinjiang, China. Observations started at 13:50:00 \nUT on 2019-04-09 and ended at 22:43:00 UT on 2019-04-09, and the 60x40 \narcmin^2 unfiltered imager scanned the highest probability regions of \nthe LVC localization that are accessible to HMT.\n\nThe total area is about 48 deg^2, and listed below are the field centers \nobserved.\n\n  RA(deg)   DEC(deg)\n13.39305\t67.41200\n13.39305\t68.07900\n13.39305\t68.74600\n16.07167\t67.41200\n16.07167\t68.07900\n16.07167\t68.74600\n18.75028\t67.41200\n18.75028\t68.07900\n18.75028\t68.74600\n14.67533\t69.41300\n14.67533\t70.08000\n14.67533\t70.74700\n17.61040\t69.41300\n17.61040\t70.08000\n17.61040\t70.74700\n20.54547\t69.41300\n20.54547\t70.08000\n20.54547\t70.74700\n5.87013\t69.41300\t\n5.87013\t70.08000\t\n5.87013\t70.74700\t\n8.80520\t69.41300\t\n8.80520\t70.08000\t\n8.80520\t70.74700\t\n11.74027\t69.41300\n11.74027\t70.08000\n11.74027\t70.74700\n5.35722\t67.41200\t\n5.35722\t68.07900\t\n5.35722\t68.74600\t\n8.03583\t67.41200\t\n8.03583\t68.07900\t\n8.03583\t68.74600\t\n10.71444\t67.41200\n10.71444\t68.07900\n10.71444\t68.74600\n347.58542\t55.40600\n347.58542\t56.07300\n347.58542\t56.74000\n349.37710\t55.40600\n349.37710\t56.07300\n349.37710\t56.74000\n351.16878\t55.40600\n351.16878\t56.07300\n351.16878\t56.74000\n349.83315\t57.40700\n349.83315\t58.07400\n349.83315\t58.74100\n351.72414\t57.40700\n351.72414\t58.07400\n351.72414\t58.74100\n353.61513\t57.40700\n353.61513\t58.07400\n353.61513\t58.74100\n344.31655\t49.40300\n344.31655\t50.07000\n344.31655\t50.73700\n345.87454\t49.40300\n345.87454\t50.07000\n345.87454\t50.73700\n347.43253\t49.40300\n347.43253\t50.07000\n347.43253\t50.73700\n351.07563\t53.40500\n351.07563\t54.07200\n351.07563\t54.73900\n352.77989\t53.40500\n352.77989\t54.07200\n352.77989\t54.73900\n354.48414\t53.40500\n354.48414\t54.07200\n354.48414\t54.73900\n\nOptical transient(s) from the above fields, if interesting, will be \nreported later on.",
  "circularId": 24085,
  "createdOn": 1554856549000,
  "email": "dxu@nao.cas.cn",
  "subject": "LIGO/Virgo S190408an: HMT optical observations",
  "submitter": "Dong Xu at NAOC/CAS  <dxu@nao.cas.cn>",
  "eventId": "LIGO/Virgo S190408an"
}