{
  "bibcode": "2020GCN.28333....1V",
  "body": "A. Volnova (IKI), S. Naroenkov (INASAN),  A. Pozanenko (IKI), N. Pankov \n(HSE), S. Belkin (IKI), E. Mazaeva (IKI)  report on behalf of larger GRB \nIKI FuN collaboration:\n\nWe observed the the field of GRB 200829A (Siegel et al., GCN 28307; Ursi \net al., GCN 28314; Ridnaia et al., GCN 28323; Lesage & Meegan, GCN \n28326)  with Zeiss-1000 1-m telescope of Koshka Observatory on August, \n30  starting (UT) 19:18:21 in I- and R-filters. The optical afterglow \n(Siegel et al., GCN 28307, Pozanenko et al., GCN 28308; Kuin & Siegel, \nGCN 28311; Lipunov et al., GCN 28315; Vinko et al., GCN 28316; Hentunen \net al., GCN 28318; Moskvitin et al., GCNs 28322, 28328, Zhu et al., GCN \n28324, GCN 28330; Pankov et al., GCN 28329; Izzo, GCN 28331)  is \ndetected  in stacked images of both filters. Preliminary photometry of \nthe afterglow is following.\n\nDate       UT start   t-T0       Filter Exp.   OT   Err.   UL\n                      (mid, days)        (s)\n\n2020-08-30 19:18:21   1.29067    I     47*120  20.14  0.20  20.8\n2020-08-30 19:20:31   1.29217    R     47*120  21.0   0.25  21.4\n\n\nThe photometry is based on nearby USNO-B1.0 stars.",
  "circularId": 28333,
  "createdOn": 1598903533000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 200829A: Koshka Zeiss-1000 optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 200829A"
}