{
  "bibcode": "2021GCN.30384....1K",
  "body": "V. Kim (FAI, Pulkovo Observatory), A. Pozanenko (IKI), M. Krugov (FAI), \n   S. Belkin (IKI), N. Pankov (HSE, IKI) report on behalf of GRB IKI FuN:\n\nWe observed the field of  GRB 210704A Fermi-LAT (Berretta et al. 2021, \nGCN 30375), AGILE/MCAL (Ursi et al. 2021, GCN 30372), AstroSat/CZTI \n(Prasad et al. 2021, GCN 30378), Swift/XRT (D'Ai et al. GCN 30379), and \nFermi-GBM (Malacaria et al. GCN 30380) with AZT-20 telescope of \nAssy-Turgen observatory starting on 2021-07-05 (UT) 17:42:41.27.\n\nIn a stacked image we detect only one object  near enhanced XRT position \n(D'Ai et al. GCN 30379). Coordinates of the object are (J2000) \n10:36:04.88 +57:12:58.5 with uncertainty of 0.5 arcsec in both coordinates.\n\nPreliminary photometry of the object is following\n\nDate       UT start  t-T0       Exp.    Filter  OT    Err.  UL(3sigma)\n                     (mid, days)  (s)\n\n2021-07-05 17:42:41.27  0.94407  66*60  r'      22.25  0.13  23.0\n\nThe photometry is based on the nearby SDSS-DR12 stars.\nThe object is not presented in the SDSS DR12, nor in PS1 catalogue. We \nsuggest the object is the afterglow of GRB 210704A.",
  "circularId": 30384,
  "createdOn": 1625517154000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 210704A: Assy optical afterglow candidate",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 210704A"
}