{
  "bibcode": "2013GCN.14340....1X",
  "body": "D. Xu (DARK/NBI), C. Cao, S. M. Hu (SDU) report:\n\nWe observed the field of GRB 130327A (Ukwatta et al., GCN 14331) using\nthe 1m telescope located in Weihai, Shandong Province, China.\nObservations started at 11:27:02 UT on 2013-03-27 (i.e, 9.658 hr after\nthe burst) in a seeing of ~2.8\", and 10x360s I-band images were\nobtained with a mean time of 10.158 hr post-burst.\n\nWithin the enhanced XRT error circle (Osborne et al., GCN 14335), no\ncredible source is detected in the stacked I-band image, down to a\nlimit of R>20.2 mag, calibrated with the USNO B1 catalogue.\n\nA source, with R~19.2 mag and somehow extended along NW-SE, is\ndetected at the position of the \"second uncatalogued source\" reported\nby Butler et al. (GCN 14334), and confirmed in Elenin et al. (GCN\n14337). This source might be the one in Morgan (GCN 14333). Since it\nis 5.5\" away from the center of the enhanced XRT error circle (radius:\n1.9\") and it's getting brightening significantly, this source is\nunlikely related to the afterglow of the burst.\n\nWe thank Dayong Ren for carrying out thee observations.",
  "circularId": 14340,
  "createdOn": 1364406692000,
  "email": "dong.dark@gmail.com",
  "subject": "GRB 130327A: Weihai optical obsevations",
  "submitter": "Dong Xu at DARK/NBI  <dong.dark@gmail.com>",
  "eventId": "GRB 130327A"
}