{
  "bibcode": "2015GCN.17709....1M",
  "body": "J. Mao, C. Wang and J.-M. Bai report:\n\n\nWe observed the field of GRB 150413A (Markwardt et al., GCN 17688) with the 2.4-meter optical telescope at Gao-Mei-Gu (GMG)\n station of Yunnan Observatory. Observations began from 13:35:29 UT, April 14, 2015, about 23.7 hours after the trigger. We\nmarginally detected the optical counterpart and estimated the magnitude as I~20.3.",
  "circularId": 17709,
  "createdOn": 1429158574000,
  "email": "jirongmao_obs@ynao.ac.cn",
  "subject": "GRB 150413A: GMG observation",
  "submitter": "Jirong Mao at Yunnan Obs  <jirongmao_obs@ynao.ac.cn>",
  "eventId": "GRB 150413A"
}