{
  "bibcode": "2017GCN.21291....1L",
  "body": "V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, D.Kuvshinov, A.V.Krylov,\nI.Gorbunov, P.Balanutsa, A.Kuznetsov, V.V.Chazov, D. Vlasenko\nLomonosov Moscow State University, Sternberg Astronomical Institut of MSU\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\nK.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk, O. Ershova \nIrkutsk State University\n\nV.Yurkov, Yu.Sergienko\nBlagoveschensk Educational State University, Blagoveschensk\n\nA. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov\nKislovodsk Solar Station of the Pulkovo Observatory\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\nMASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) \nlocated in OAFA was pointed to the  GRB170705A (Starling et al.,GCN #21289)\n24 sec after notice time  and 38 sec after trigger time at 2017-07-05 \n02:46:27 UT  at high zenit distance.\nOn our first (10s  exposure)  unfiltered exposition we haven`t found \noptical transient  within SWIFT error-box  (ra=191.704 dec=18.2928 r=0.05)\nbrighter than 15.0.\n\n\nWe marginally found OT at Swift UVOT position (Starling et al.,GCN #21289) \non coaded image ID=79921 with m ~ 17.0.\n\n  ID       DATE      UT     Exp      Type         Limit        Note\n\n79817 2017-07-05 02:46:27  10    Alert (SWIFT)   15.0          no\n79921 2017-07-05 02:46:27 190 SumAlert (SWIFT)   16.9 79817+79825+79820+79818 \n79818 2017-07-05 02:47:20  20    Alert (SWIFT)   15.8         yes\n79819 2017-07-05 02:48:24  30    Alert (SWIFT)   15.9          no\n79820 2017-07-05 02:49:38  50    Alert (SWIFT)   16.2         yes\n79822 2017-07-05 02:51:13  60    Alert (SWIFT)   16.3          no\n79824 2017-07-05 02:52:57  90    Alert (SWIFT)   16.5          no\n79825 2017-07-05 02:55:11 110    Alert (SWIFT)   16.4         yes\n79826 2017-07-05 02:57:46 140    Alert (SWIFT)   16.4          no\n79827 2017-07-05 03:00:48 180    Alert (SWIFT)   16.7          no\n79829 2017-07-05 03:04:32 180    Alert (SWIFT)   16.3          no \n79830 2017-07-05 03:08:12 180    Alert (SWIFT)   16.0          no\n\nThe unfiltered magnitude is about ~17 m .\nThe big differences with UVOT magnitude may be connected with high GRB\nredshift because our CCD is more red.\n\nThe observations made on zenit distance = 79 degrees, galaxy latitude b = \n81 degree. The moon (86 % bright part) is 66 degrees above the horizon. \nThe distance between  moon and  object is 56\nThe sun  altitude  is -63.1 degree.\nThe object can be observed till 2017-07-05 03:46:20 .\n\nThe message may be cited.",
  "circularId": 21291,
  "createdOn": 1499246806000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "GRB 170705A: MASTER-OAFA  early OT observations",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 170705A"
}