{
  "bibcode": "2022GCN.31586....1P",
  "body": "N. Pankov (HSE), A. Pozanenko (IKI), E. Klunko (ISZF),  R. Ya. \nInasaridze (AbAO), I. Sokolov (INASAN, KIAM),  I. Izvekova (Institute of \nPhysics of NAS, ICAMBR of NAS), A. Shein (INASAN), Y. Markus (Institute \nof Physics of NAS, ICAMBR NAS), Y. Markelov (KIAM),  G. Butenko (ICAMBR \nNAS), S. Belkin (IKI, HSE) report on behalf of GRB IKI:\n\nWe observed the field of Swift/BAT-GUANO localization (Tohuvavohu et \nal.,  GCN 31572) of GRB 220210A (Fermi GBM team, GCN 31568) with \nAZT-33IK telescope of Mondy observatory, AS-32 telescope of Abastumani \nobservatory, and Zeiss-2000 telescope in R-filter. Within localization \narea (Tohuvavohu et al.,  GCN 31572) we do not detect evident candidate \nin comparison with SDSS DR12 catalogue. The object reported by BOOTES \nteam (Carrasco-Garcia et al., GCN 31573) is clearly visible in all of \nour observations and do not show significant variability  with R= 20.17 \n+/- 0.14 (0.54116 d),  R= 20.05 +/- 0.13 (0.72701 d), and R=20.14 +/- \n0.13 (0.77438 d). This highly reddened object visible in DDS-2 Infrared \nSurvey (Carrasco-Garcia et al., GCN 31574) is also presented in SDSS \nDR12 as a star-like very red object with r=21.187.\n\nPreliminary photometry of the field is following\n\nDate UT start t-T0 Filter Exp. OT Err UL(3sigma) Telescope\n\n2022-02-11 12:32:54 0.54116 R    23*120  n/d   n/d   22.7 AZT-33IK\n2022-02-11 16:58:32 0.72701 R     50*60  n/d   n/d   21.9 AS-32 \n2022-02-11 19:41:36 0.77438 R    35*180  n/d   n/d   22.2 Zeiss-2000\n\nThe photometry is based on the nearby USNO-B1.0 stars\nRA DEC R2\nRA DEC R2\n345.7846139 61.8542256 14.69\n345.7584140 61.8282804 17.76",
  "circularId": 31586,
  "createdOn": 1644704424000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 220210A: Mondy, AbAO and Terskol optical upper limits",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 220210A"
}