{
  "bibcode": "2018GCN.22331....1M",
  "body": "E. Mazaeva (IKI),  A. Pozanenko (IKI), R. Inasaridze (AbAO),  S. Schmalz \n(ISON), V. Ayvazian  (AbAO),  O. Kvaratskhelia (AbAO), G. Inasaridze \n(AbAO),  A. Volnova  (IKI),  I. Molotov (KIAM), report on behalf of larger \nGRB follow-up  collaboration:\n\nWe observed the field of the Swift  GRB 180111A (Lien et al., GCN 22318) \nwith AS-32 (0.7m) telescope of Abastumani Observatory starting on Jan., 11 \n(UT)  23:53:51. We obtained several unfiltered images of the field.   Within \nenhanced XRT error circle  (Evans et al., GCN   22319) we detected the \nafterglow (Lien et al., GCN  22318; Xin et al., 22320; GCN  Butler  et al., \nGCN  22323; Gropp  et al., GCN   22327).\nPreliminary photometry of the afterglow is following\n\nDate             UT start    t-T0       Filter    Exp.   OT      Err  UpLim \n(3 sigma)\n                       (mid, days)                       (s)\n\n2018-01-11 23:53:51   0.3213  CR     62*60  20.7  0.2  22.0\n\nPhotometry is based on nearby USNO-B1.0 stars (R2 magnitudes)\nUSNO-B.1_id    R2\n1382-0239231 15.78\n1383-0226386 16.52\n1383-0226440 15.90",
  "circularId": 22331,
  "createdOn": 1515872194000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 180111A: AbAO optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 180111A"
}