{
  "bibcode": "2005GCN..3896....1A",
  "body": "Z. Aslan, I. Khamitov (TUG), U. Kiziloglu (METU), E. Gogus (Sabanci Uni.),\nI. Bikmaev, A. Galeev, N. Sakhibullin (KSU/AST),\nR. Burenin, M. Pavlinsky, R. Sunyaev (IKI),\n\nreport:\n\n     We have continued  observing the OT of GRB 050820A (GCN 3829) with\nthe Russian-Turkish 1.5-m telescope (Bakirlitepe, TUBITAK National \nObservatory, Turkey)  using TFOSC in R band.\n      We made 5*300s exposures between UT 22:40 - 23:05, August 27.  Using\nHenden's stars (GCN 3845) present in the frames, we estimated the \nmagnitude of the co-added image as R=22.14+/-0.1 (184.25h after the \ntrigger).\n      The OT is fading with the same power-law decay. Using all the data \nobtained at the RTT150 (GCN3864, GCN3853) we estimated an alpha index of \npower-law decay of -1.06+/-0.03.\n\nThe JPG-image is available at:\nhttp://www.tug.tubitak.gov.tr/~irekk/grb/grb050820a/grb050820A_050827r.JPG\n\nThis message may be cited.",
  "circularId": 3896,
  "createdOn": 1125202756000,
  "email": "irekk@tug.tug.tubitak.gov.tr",
  "subject": "GRB050820A: RTT150 optical observations",
  "submitter": "Irek Khamitov at TUG  <irekk@tug.tug.tubitak.gov.tr>",
  "eventId": "GRB 050820A"
}