{
  "bibcode": "2013GCN.14518....1Z",
  "body": "X.-H. Zhao (YNAO and PSU), J. Mao (RIKEN and YNAO), L. Chang (YNAO), J.-M. Bai \r\n(YNAO) report on behalf of a larger collaboration:\r\n\r\nWe again observed the afterglow of GRB 130427A (Maselli et al., GCN 14448) with 2.4m Gao-Mei-Gu (GMG) telescope from 15:46:37 UT on 2013-04-30. \r\nWe used the sloan filter of r' and obtained two images with the exposure time of 900s each image. The GRB afterglow decayed to r'~19.4 with a middle time of\r\n80.2 hrs post-burst. \r\n\r\nWe thank the GMG staff, especially Jian-Duo He and Gui-Hua He for performing these observations.",
  "circularId": 14518,
  "createdOn": 1367362948000,
  "email": "zhaoxiaohong78@gmail.com",
  "subject": "GRB 130427A: Continued GMG optical observations",
  "submitter": "Xiao-hong Zhao at Yunnan Obs  <zhaoxiaohong78@gmail.com>",
  "eventId": "GRB 130427A"
}