{
  "bibcode": "2015GCN.18485....1X",
  "body": "D. Xu (NAOC/CAS), C.-M. Zhang, C. Cao, S.-M. Hu (SDU) report:\n\nWe observed the field of GRB 151027A (Maselli et al., GCN 18478) using \nthe 1m telescope located at Weihai, Shandong, China. Observations \nstarted at 09:44 UT on 2015-07-27, i.e., 5.77 hr after the burst. We \nobtained 5x300s R-band and 5x150s I-band frames.\n\nThe afterglow (e.g., Maselli et al., GCN 18478; Zheng & Filippenko, GCN \n18479; Elenin et al., GCN 18480; Perley & Cenko, GCN 18481) is clearly \ndetected in each image, and it has decayed to m(R) = 16.0 +/- 0.1 mag \nfor the first R-band exposure, calibrated with the nearby USNO B1 stars \n(with R2 magnitudes).",
  "circularId": 18485,
  "createdOn": 1445948268000,
  "email": "dxu@nao.cas.cn",
  "subject": "GRB 151027A: Weihai optical observations",
  "submitter": "Dong Xu at NAOC/CAS  <dxu@nao.cas.cn>",
  "eventId": "GRB 151027A"
}