{
  "bibcode": "2017GCN.21272....1G",
  "body": "O.Gres, N.M.Budnev, O.Ershova\nIrkutsk State University\n\nV. Lipunov, E.Gorbovskoy, N.Tyurina, V.Kornilov,  A.Kuznetsov, V.Vladimirov, \nI.Gorbunov, D.Kuvshinov,  A.V.Krylov, P.Balanutsa, V.V.Chazov, D. Vlasenko\nLomonosov Moscow State University, Sternberg Astronomical Institut of MSU\n\nA. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov\nKislovodsk Solar Station of the Pulkovo Observatory\n\nA.Gabovich, V.Yurkov, Yu.Sergienko\nBlagoveschensk Educational State University, Blagoveschensk\n\nD.Buckley, S. Potter, A.Kniazev, M.Kotze\nSouth African Astronomical Observatory\n\nR. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres\nThe Instituto de Astrofisica de Canarias\n\nR.Podesta, C.Lopez, F. Podesta Observatorio Astronomico Felix Aguilar (OAFA),\nNational University of San Juan, Argentina\n\nH. Levato, C. Saffe\nInstituto de Ciencias Astronomicas,de la Tierra y del Espacio (ICATE),\nSan Juan, Argentina\n\nMASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) \nlocated in Tunka was starting inspection on the Swift  GRB 170626A \nerror-box (ra=11 01 34 dec=+56 28 36 r=0.05)  22799 sec after notice time and 24464 \nsec after trigger time at 2017-06-26 16:45:56 UT. The 5-sigma upper limit \non our added image (3x180s exposure)  set is about 19.8  mag .\n\nWe see OT with unfiltered magnitude 19.8 +0.2/-0.3 mag at Moskvitin et \nal. (GCN #21268) position (see also A. de Ugarte Postigo et al.,GCN \n#21269; Melandri et al., GCN #21270; ).\n\n\nThe message may be cited.",
  "circularId": 21272,
  "createdOn": 1498571383000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "GRB 170626A: MASTER-Tunka OT detection.",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 170626A"
}