{
  "bibcode": "2014GCN.17168....1M",
  "body": "E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of \nAstronomy and Geophysics MAS),  A. Volnova (IKI), I.Molotov (KIAM), A. \nPozanenko (IKI) report on behalf of larger GRB follow-up collaboration:\n\nWe observed the field of GRB 141212A (Ukwatta et al., GCN 17158) with \nORI-40 telescope of Khureltogot observatory. We obtained 2 hours of \nunfiltered images on Dec. 12 starting on (UT) 12:46:14.  In a combined \nimage of the first 5 frames we  do not detect any optical source within \n  enhanced Swift-XRT position (Osborne et al., GCN 17164). Preliminary \nphotometry is following\n\nDate        UT start  t-T0       Filter  Exp.   ULimit (3sigma)\n                       (mid, days)          (s)\n\n\n2014-12-12  12:46:14  0.02422    R       5*60   18.5\n\n\nThe photometry is based on USNO-B1.0 stars\nUSNO-B1_id      RA\t         DEC\t        R2\n1081-0038366\t039.120895\t+18.127567\t16.32\t\n1081-0038391\t039.149945\t+18.154739\t17.15\t\n1081-0038340\t039.085725\t+18.167617\t14.41",
  "circularId": 17168,
  "createdOn": 1418414971000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 141212A: Khureltogot optical upper limit",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 141212A"
}