{
  "bibcode": "2019GCN.26018....1K",
  "body": "V. Kim (AFIF, Pulkovo Observatory) A. Pozanenko (IKI), M. Krugov (AFIF), \n  I. Reva (AFIF), E. Mazaeva  (IKI), A. Volnova (IKI) report on behalf \nof larger GRB IKI FuN collaboration:\n\nWe observed the field of the  GRB 191016A   (Gropp al., GCN  26008) with \nAZT-20 telescope  of Assy-Turgen observatory (MPC observatory code 217) \nstarting on Oct. 16  (UT) 14:58:49  in  r'-filter.    We clearly detect \nthe optical afterglow (Watson al., GCN  26010; Zheng al., GCN  26011; \nWatson  al., GCN  26015; Hu et al., GCN 26017).\nPreliminary photometry of the afterglow is following.\n\nDate       UT start   t-T0       Filter Exp.   OT   Err.\n                       (mid, days)        (s)\n\n2019-10-16 14:58:49   0.48336     r'    120*30 20.6 0.15\n\nThe photometry is based on the nearby USNO-B1  stars and BRI \ntransformations to r'.\n\nThe photometry in agreement with non detection of the optical afterglow \nby Jelinek et al. (GRB 26013).",
  "circularId": 26018,
  "createdOn": 1571307523000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 191016A: AZT-20 (Assy observatory) optical photometry",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 191016A"
}