{
  "bibcode": "2020GCN.29191....1B",
  "body": "S. Belkin (IKI),  A. Pozanenko (IKI), V. Kim (FAI, Pulkovo Observatory), \n   M. Krugov (FAI), A. Novichonok (Petrozavodsk State University, KIAM), \nA. Zhornichenko (KIAM),  E. Klunko (ISTP),   O. Burhonov (UBAI), Sh. \nEhgamberdiev (UBAI) report  on behalf of IKI GRB FuN:\n\nWe additionally observed the GRB 201020B (Fermi GBM team, GCN 28702; \nMalacaria et al., GCN 28710; Arimoto et al., GCN 28716; Ursi et al., GCN \n28714; Ridnaia et al., GCN 28723) with AZT-20 telescope of Assy \nobservatory, Zeiss-1000 of Koshka observatory, AZT-33IK telescope of \nSayan observatory (Mondy), and AZT-22 telescope of Maidanak observatory. \nThe optical afterglow (Lipunov et al., GCN 28718; Xu et al., GCN 28719; \nBelkin et al., GCN 28725; Breeveld & Lien, GCN 28743; Vinko et al., GCN \n28750; Kumar et al., GCN 28753; Belkin et al., GCN 28768; Vinko et al., \nGCN 28769; Vinko et al., GCN 28769; Panchal et al., GCN 28772; Nicastro \n  et al., GCN 28773; Kumar  et al., GCN 28776; Kumar  et al., GCN 28781) \nwith redshift of z= 0.804 (Kann  et al., GCN 28765) is  detected in most \nof stacked images of our observations in R-filter.\n\nPreliminary light curve of the afterglow based on our observations \nincluding reported earlier (Belkin et al., GCNs 28725, 28768) can be \nfound in\n\nhttp://grb.rssi.ru/GRB201020B/GRB201020B_R_LC.png\n\nThe photometry is based on the nearby USNO-B1.0 stars\nUSNO-B1.0_id R2\n1670-0037414 16.74\n1670-0037586 16.16",
  "circularId": 29191,
  "createdOn": 1609192393000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 201020B: Assy, Koshka, Mondy and Maidanak optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 201020B"
}