{
  "bibcode": "2022GCN.32317....1B",
  "body": "S. Belkin (IKI), N. Pankov (IKI), A. Pozanenko (IKI), R. Ya. Inasaridze \n(AbAO), V. R. Ayvazian (AbAO),  D. Datashvili (AbAO), G. V. Kapanadze \n(AbAO) report on behalf of GRB IKI FuN\n\nWe observed the field of GRB 220701A detected by Swift (Evans et al., \nGCN 32306;) with AS-32 telescope of Abastumani Observatory (AbAO) \nstarting on 2022-07-01 (UT) 17:54:12. We do not detect any optical \nsources within enhanced XRT position (Evans et al., GCN 32308). This \nupper limit is consistent with earlier and later non detection \n(O'Connor  et al. GCN 32309; Oates  et al. GCN 32310; Hu et al. GCN \n32311; Strausbaugh et al. GCN 32313; Zheng et al. GCN 32315). \nPreliminary upper limit of a stacked image is following:\n\n  Date,     UT start, t-T0,    Exp.,  Filter, OT,    Err,  UL(3 sigma)\n                     (mid, days)\n\n2022-07-01 17:54:12  0.55016  22*60  R      n/d    n/d    21.0\n\nThe photometry is based on nearby USNO-B1.0 stars, R2 magnitude\nRA DEC R2\n16:10:21.85344 +55:26:18.9924 15.49\n16:10:42.83688 +55:25:01.9920 17.38\n16:10:59.99544 +55:21:15.1020 16.08\n16:10:33.30600 +55:17:14.3520 16.76",
  "circularId": 32317,
  "createdOn": 1656772224000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 220701A: AbAO optical upper limit",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 220701A"
}