{
  "bibcode": "2017GCN.21654....1M",
  "body": "E. Mazaeva (IKI),  R. Inasaridze (AbAO), A. Pozanenko (IKI),   A. \nVolnova  (IKI),   V. Ayvazian (AbAO),  O. Kvaratskhelia (AbAO), G. \nInasaridze (AbAO), I. Molotov (KIAM) report on behalf of larger GRB \nfollow-up  collaboration:\n\nWe observed the field of the Swift  GRB 170822A   (Melandri et al.,\nGCN  21640)) with AS-32 (0.7m) telescope of Abastumani Observatory \nstarting on August, 22 (UT) 22:43:12. We obtained several unfiltered \nimages of the field.   Within enhanced XRT error circle  (Beardmore et \nal., GCN   21643) we do not detect  the afterglow candidate (Tello et \nal, GCN 21642). Preliminary photometry of the field is following\n\nDate        UT start  t-T0     Filter Exp.   OT   Err UpLim (3 sigma)\n                       (mid, days)     (s)\n\n2017-08-22 22:43:12  0.58255   CR     32*60  n/d  n/d 22.2\n\nPhotometry is based on nearby USNO-B1.0 stars R2 magnitudes\nUSNO-B.1_id  R2\n1450-0165651 15.44\n1450-0165657 15.54\n1450-0165669 16.19\n1450-0165558 16.58\n1450-0165549 15.60\n1450-0165573 15.28\n1449-0164981 16.05\n\nA finding chart can be found at \nhttp://grb.rssi.ru/GRB170822A/GRB170822A_AAO_170822+Bootes-OT.png",
  "circularId": 21654,
  "createdOn": 1503494060000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 170822A: AbAO optical upper limit",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 170822A"
}