{
  "bibcode": "2010GCN.10393....1Y",
  "body": "V.Yurkov, S.Sergienko Blagoveschensk Educational State University, \nBlagoveschensk\n\n\nE. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, \nD.Kuvshinov, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov, D.Zemnukhov, \nM. Kornilov\nSternberg Astronomical Institute, Moscow State University\n\nA. Tlatov, A.V. Parhomenko, D. Dormidontov\nKislovodsk Solar Station of the Pulkovo Observatory\n\n\nV.Krushinski, I.Zalozhnih, T.Kopytova, A. Popov Ural State University, Kourovka\n\n\nK.Ivanov, S.Yazev, N.M.Budnev, E.Konstantinov, V.Lenok\nIrkutsk State University\n\n\nMASTER  robotic telescope (MASTER-Net: http://observ.pereplet.ru, 200\nmm, FOV=8 square degrees (testing mode)) and  Very Wide Field Camera (D=50 mm, \n1000 square  degrees, 11 Mpx, 36\" per pix, mounted on telescope) located at \nBlagoveschensk   was responted to the  GRB 100131A (Fermi GBM  alert,\n  Goldstein et al, GCN CIRC 10358) 76 sec after first Notice \ntime and 93 s after the GRB time.\nThe center FOV of the main telescope correspond to first alert \nimformation:\n\n  RA=107.420+-3         DEC=+3.730+-3\n\nThe limit of the main telescope images is aboute 15 mag (unfiltered).\n\n\nWe have a number images with 5 s exposition from Very Wide Field Camera.\nThe image limit from Very Wide Filed Camera ~10 mag.\nThere is now OT in our images inside Fermi error box (A. Goldstein, GCN \nCIRC 10358) brighter 10 mag.\n\nThe imege  is available  at \nhttp://observ.pereplet.ru/images/GRB100131A/grb100131A.jpg .\nThe circles correspond to  1sigma + systematic Fermi error box, and\n  3sigma+systematic error box.\nThe message may be cited.\n\nmailto: lipunov@sai.msu.ru",
  "circularId": 10393,
  "createdOn": 1265550478000,
  "email": "gcncirc@observ.inetcomm.ru",
  "subject": "GRB 100131A: MASTER-Net  optical alert observations",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>",
  "eventId": "GRB 100131A"
}