{
  "bibcode": "2016GCN.19199....1V",
  "body": "A. Volnova (IKI),  E. Chornaya  (UAFO),  E. Mazaeva (IKI), A. Matkin \n(UAFO, ISON),  I. Molotov (KIAM),   A. Pozanenko (IKI) report on behalf \nof larger GRB follow-up collaboration:\n\nAfter receiving full data set of our observations (GCN 19184) we refine \nphotometry and correct UT time of the observations.\n\nThe field of the GRB 160314A (D'Elia et al., GCN  19182) was observed \nwith SANTEL-650 (0.65m)  telescope of UAFO/ISON-Ussuriysk observatory \nstarting on March, 14 (UT) 11:56:51 under clear sky but with a high \nground wind speed. We obtained series of unfiltered images of 30 s \nexposure. In a combined image we do not detect optical afterglow \n(D'Elia et al., GCN 19182; Siegel & D'Elia, GCN 19187; Malesani et al., \nGCN 19191). Photometry of combined images  is following\n\nDate       UT start  t-T0   Filter  Exp.    OT     U_limit (3sigma)\n                      (mid, days)    (s)\n\n2016-03-14 11:56:51  0.01728  none    3*30  n/d    18.7\n2016-03-14 11:56:51  0.04575  none   30*30  n/d    20.1\n\nThe photometry is based on nearby  SDSS star J073110.29+170129.9\nassuming R_Lupton = 16.132.",
  "circularId": 19199,
  "createdOn": 1458108884000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 160314A: ISON-Ussuriysk optical upper limit, updated photometry and correction of GCN 19184",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 160314A"
}