{
  "bibcode": "2005GCN..3539....1Z",
  "body": "R. Zhuchkov, I. Bikmaev, N. Sakhibullin (KSU/AST), R. Burenin,\nM. Pavlinsky, R. Sunyaev (IKI), Z. Aslan, I. Khamitov (TUG),\nU. Kiziloglu (METU), A. Alpar (Sabanci Uni.)\n\nreport:\n\nWe observed the error box of GRB 050607 (Retter et al., GCN 3525) with\nRussian-Turkish 1.5-m telescope (RTT150, Bakyrlytepe, TUBITAK National\nObservatory, Turkey). We made a set of 600s exposures in R and I,\nstarting at 21:00 UT, June 07, i.e. approximately 12 hours after the\nburst. Observations were made under poor weather conditions (with 1.7''\nseeing and cirruses).\n\nWe detect nothing at the position of the OT found by Rhoads et al. (GCN\n3527, 3531). The upper limits are approximately I=22.6 and\nR=23.7. Comparing to earlier measurements (Rhoads et al., GCN 3531) we\nconfirm that the source is fading.\n\nThis message may be cited.",
  "circularId": 3539,
  "createdOn": 1118244157000,
  "email": "rodion@hea.iki.rssi.ru",
  "subject": "GRB 050607: RTT150 optical observations",
  "submitter": "Rodion Burenin at IKI, Moscow  <rodion@hea.iki.rssi.ru>",
  "eventId": "GRB 050607"
}