{
  "bibcode": "2013GCN.14152....1G",
  "body": "A. Galeev (KFU/AST), I. Khamitov (TUG),\nI. Bikmaev, N. Sakhibullin (KFU/AST),\nR. Burenin, M. Pavlinsky, R. Sunyaev (IKI),\nH. Kirbiyik (TUG), U. Kiziloglu (METU), E. Gogus (Sabanci Uni.)\n\nreport:\n\nThe field of the optical afterglow of GRB 130122A (Lien et al., GCN 14140)\nwas observed with Russian-Turkish 1.5-m telescope (RTT150, Bakirlitepe, \nTUBITAK National Observatory, Turkey) in partially cloudy conditions.\nUsing the TFOSC instrument we obtained BVR images by 300s starting at \nJanuary 23, 02:38:31 UT, i.e. 2.91 hours after the burst. The afterglow is \nclearly detected in all images.\n\nOn our images we find the optical transient at the coordinates with \nuncertainty of 0.1 arcsec:\n  R.A. (J2000) =  12 57 08.317\n  Dec. (J2000) = +59 00 53.62\n\nUsing the same USNO-B1 star reported by Sonbas et al. (GCN 14141) as a \nreference, we estimated the R-magnitudes of the afterglow:\n\nT-T0,  Mag. +/- Mag.err\n(hour)\n2.95  19.88 +/- 0.13\n3.06  20.07 +/- 0.10\n3.17  19.94 +/- 0.20\n3.28  20.00 +/- 0.09\n3.33  19.79 +/- 0.13\n\nThe combined image of the field can be found at:\nhttp://hea.iki.rssi.ru/grb/130122a/indexeng.html\n\nThis message may be cited.",
  "circularId": 14152,
  "createdOn": 1359375609000,
  "email": "irekk@tug.tug.tubitak.gov.tr",
  "subject": "GRB 130122A: RTT150 optical observations",
  "submitter": "Irek Khamitov at TUG  <irekk@tug.tug.tubitak.gov.tr>",
  "eventId": "GRB 130122A"
}