{
  "bibcode": "2005GCN..3139....1K",
  "body": "U. Kiziloglu, S. Balman, A. Baykal (METU), Z. Aslan, I. Khamitov, \nK. Uluc (TUG), S. Evren (EgeU), A. Alpar (Sabanci U.), R. Burenin, \nM. Pavlinsky (IKI), R. Sunyaev (IKI, MPA), I, Bikmaev (KSU) report :\n\nWe observed the field centered on the Swift GRB 041006 (Rykoff et al. \nGCN 3116, Krimm et al., GCN 3117, GCN 3119) with the TUG (TUBITAK \nNational Observatory, Turkey) 1.5-m Russian-Turkish Telescope (RTT150).\n\nWe obtained 8x300s 6x120s 3x60s  R band images on 2005.03.19 starting \nat 17:26:36 UT using the imaging ANDOR CCD. The seeing was 1.8\"-2.1\".\n\nWe further obtained  6x300 s R band images on 2005.03.20 and 2005.03.21\nwith RTT150. The seeing was poor with Moon.\n\nWe calculated the R magnitudes below using the USNO B1.0 Catalog.\n\n Observation (UT)        R_mag       \n--------------------     ----------------------\n 2005 March 19, 18:12    20.14 +/- 0.09  \n 2005 March 21, 00:16    21.3  +/- 0.6   1 Sigma frame upper limit\n 2005 March 21, 17:58    21.1  +/- 0.3  \n\nThis message can be cited.",
  "circularId": 3139,
  "createdOn": 1111566163000,
  "email": "umk@astroa.physics.metu.edu.tr",
  "subject": "GRB050319: RTT150 Optical Observations",
  "submitter": "Umit Kiziloglu at Middle East Tech.U,Phys.Dept  <umk@astroa.physics.metu.edu.tr>",
  "eventId": "GRB 050319"
}