{
  "bibcode": "2016GCN.19049....1B",
  "body": "D.Buckley, S. Potter, M.Kotze, A.Kniazev\nSouth African Astronomical Observatory\n\nE. Gorbovskoy, V. Lipunov, V.Kornilov, D.Kuvshinov, N.Tyurina, \nP.Balanutsa,  A.Kuznetsov\nLomonosov Moscow State University,\nSternberg Astronomical Institute, Moscow State University\n\nA.Gabovich, V.Yurkov, Yu.Sergienko, D.Varda\nBlagoveschensk Educational State University, Blagoveschensk\n\nK.Ivanov, N.M.Budnev, O.Gres, V.A.Poleshchuk, S. Yazev\nIrkutsk State University\n\nA. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov\nKislovodsk Solar Station of the Pulkovo Observatory\n\nR. Rebolo, M. Serra-Ricart, N. Lodieu, G. Israelian\nThe Instituto de Astrofisica de Canarias\n\n\nMASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) \nlocated in SAAO was pointed to the  GRB160221A (Mereghetti et. al GCN \n19046) 61 sec after notice time and 74 sec after trigger time at \n2016-02-21 23:51:04 UT. On our second (10s exposure)  set we haven`t found \noptical transient  within INTEGRAL error-box (ra=15 28 19 dec=-28 26 40 \nr=0.053100).\nThe 5-sigma upper limit has been about 16.5 mag on single (10 s images) \nand 19.0 on coadd image with total exposure 150 s.\n\nThe message may be cited.",
  "circularId": 19049,
  "createdOn": 1456136027000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "GRB 160221A: MASTER-SAAO early observations",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 160221A"
}