{
  "bibcode": "2022GCN.31398....1P",
  "body": "N. Pankov (HSE), A. Pozanenko (IKI), E. Klunko (ISTP), Belkin (IKI, HSE)\nreport  on behalf of GRB IKI FuN:\n\nWe observed Swift GRB 220101A (Tohuvavohu, et al., GCN 31347) also\ndetected by Fermi/LAT (Arimoto et al. 2022, GCN 31350), AGILE (Ursi et \nal. 2022, GCN 31354), and Fermi/GBM (Lesage et al. 2022, GCN 31360) with \nAZT-33IK telescope of Sayan observatory (Mondy) starting on 2022-01-06 \n(UT) 13:57:13. We detected the afterglow (Tohuvavohu et al., GCN 31347; \nKuin & Tohuvavohu, GCN 31351; Fu et al., GCN 31353; Hentunen et al., GCN \n31356; Perley et al., GCN 31357; de Ugarte Postigo et al., GCN 31358; \nFynbo et al., GCN 31359; Vinko et al., GCN 31361; Tomasella et al., GCN \n31363; Mao et al., GCN 31364; Noschese et al., GCN 31366; Mao et al., \nGCN 31368; Guelbenzu, et al., GCN 31370; Strausbaugh et al., GCN 31371, \nD'Avanzo et al., GCN 31373; Strausbaugh et al., GCNs 31383, 31389; \nDimple et al., GCN 31384; Romanov, GCN 31387; Caballero-Garcia, GCN \n31388; Belkin et al, GCN 31390; Gupta et al, GCN 31394; D'Avanzo et al, \nGCN 31395) in  a stacked image.\n\nPreliminary photometry of the afterglow is following\n\nDate       UT start  t-T0      Filter Exp.   OT    Err.  UL(3sigma)\n                      (mid, days)        (s)\n\n2022-01-06 13:57:13   5.38683    R    30*120 22.17 0.18  23.0\n\nThe photometry is based on the nearby SDSS-DR12 stars\nRA DEC R(Lupton)\n00:05:20.64408 +31:45:46.0728 18.562\n00:05:34.81464 +31:45:50.5224 15.734\n00:05:32.53944 +31:44:51.9396 15.369\n00:05:36.69864 +31:44:42.4176 14.677",
  "circularId": 31398,
  "createdOn": 1641558331000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 220101A: Continued Mondy optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 220101A"
}