{
  "bibcode": "2019GCN.23634....1M",
  "body": "J. Mao, Y.-X. Xin, Y. Li, J.-M. Bai (YNAO) report:\n\n\nWe observed the afterglow of GRB 190106A with the 2.4-meter optical telescope at Gao-Mei-Gu (GMG) station of Yunnan Observatories in the second night. The observation began at UT 12:47:01, 7th, Jan, 2019, about 23.2 hours after the trigger. We still clearly detected the source. A preliminary measurement provided a magnitude of R~19.7. We suggest other telescopes to keep on observations.",
  "circularId": 23634,
  "createdOn": 1546870526000,
  "email": "jirongmao_obs@ynao.ac.cn",
  "subject": "GRB 190106A: GMG photometry in the 2nd night",
  "submitter": "Jirong Mao at Yunnan Obs  <jirongmao_obs@ynao.ac.cn>",
  "eventId": "GRB 190106A"
}