{
  "bibcode": "2021GCN.29522....1B",
  "body": "S. Belkin (IKI),  A. Pozanenko (IKI), E. Klunko (ISTP), N. Pankov (HSE) \nreport  on behalf of GRB IKI FuN:\n\nWe observed the field of GRB 210212A (Troja et al., GCN 29487) with \nAZT-33IK telescope of Sayan observatory (Mondy) starting on 2021-02-12 \n(UT) 14:39:29, i.e. 0.45 days after GRB trigger and reasonable FWHM of \nabout 2.7\". Within enhanced XRT position (Beardmore et al., GCN 29489) \nwe found an object. Preliminary photometry of the object in a combined \nimage is following\n\nDate       UT start   t-T0       Filter Exp.    OT    Err.  UL(3sigma)\n                       (mid, days)        (s)\n\n2021-02-12 14:39:29   0.44527    R      27*120  22.20 0.28  22.4\n\nThe photometry is based on the nearby USNO-B1.0 stars\nUSNO-B1.0_id R2\n0972-0060540 15.06\n0972-0060545 15.99\n\nThe object could be an afterglow of the GRB 210212A which is not \nseparated from (possible host) galaxy (Heintz  et al., GCN 29498; \nDichiara et al., GCN 29507).",
  "circularId": 29522,
  "createdOn": 1613607426000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 210212A: Mondy optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 210212A"
}