{
  "bibcode": "2003GCN..1990....1B",
  "body": "R. Burenin, D. Denissenko, M. Pavlinsky, R. Sunyaev, O. Terekhov, A.\nTkachenko (IKI); Z. Aslan, I. Khamitov, K. Uluc (TUG); U. Kiziloglu, A.\nAlpar, A. Baykal (METU); I. Bikmaev, N. Sakhibullin, V. Suleymanov (KSU)\nreport:\n\nError box of GRB030328 (HETE Trigger #2650, GCN 1978) was observed with\n1.5-m Russian-Turkish Telescope RTT150 at Bakyrlytepe (TUBITAK National\nObservatory, Turkey) between Mar. 28.80 and 29.02 UT, starting appr.\n9-10 hours after the burst. A set of 300-second exposures in BVRI Bessel\nfilters was obtained under poor photometric conditions.\n\nWe confirm the presence of the optical transient (OT) reported by\nPeterson and Price (GCN 1974). R magnitude of the OT on Mar. 28.952\n(0.480 day after the burst) is estimated to be 20.35, assuming that Star\nB in GCN 1975 is R=16.1. This is brighter than the extrapolation of the\npower law from Price and Peterson (GCN 1977).\n\nOT is clearly visible in other filters in every 300-s exposure. The\nmagnitudes in BVI will be obtained after we calibrate the field.\n\nThe R image can be found at: http://hea.iki.rssi.ru/~br/r.gif\n\nPreliminary lightcurve in R: http://hea.iki.rssi.ru/~br/lc_r.ps\n\nThis message may be cited.",
  "circularId": 1990,
  "createdOn": 1048950955000,
  "email": "denis@hea.iki.rssi.ru",
  "subject": "GRB 030328: optical observations",
  "submitter": "Denis Denissenko at IKI, Moscow  <denis@hea.iki.rssi.ru>",
  "eventId": "GRB 030328"
}