{
  "bibcode": "2013GCN.14148....1V",
  "body": "A. Volnova (SAI MSU/IKI), V. Linkov (ISON-Kislovodsk),  I. Molotov (KIAM), \nV. Kouprianov (GAO), A. Pozanenko (IKI),  report on behalf of larger \ncollaboration:\n\nWe observed the field of  GRB 130122A (Lien  et al., GCN 14140) with \nSANTEL-400AN (0.4-m f/3)  telescope of ISON-Kislovodsk observatory. \nObservations started on  Jan. 22 (UT) 23:44  and we obtained  several \nunfiltered images  of 60 s and 100 s exposures. Initial part of our \nobservations were carried under unfavorable weather conditions. Starting on \nJan.23 (UT) 00:14:14 we clearly detect optical afterglow of GRB 130122A \n(Lien  et al., GCN 14140; Sonbas et al., GCN 14141; Gorbovskoy  et al., GCN \n14142) in single images of 60 s exposure. A  preliminary photometry of \nstacked  images is based  on USNO-B1.0 (R2)  nearby  stars:\n\nT_start,     T0+,       Exp,     Filter,       OT\n(UT)          mid (d)   (s)\n\n00:14:14  0.00899  8x60    none      18.0 +/-0.1\n00:47:45  0.04474   100     none      18.5 +/- 0.5\n01:02:07  0.05579  4x60    none       >17.3",
  "circularId": 14148,
  "createdOn": 1359021937000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 130122A: optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 130122A"
}