{
  "bibcode": "2011GCN.11589....1G",
  "body": "K. Grankin, V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on behalf of \nlarger GRB  follow-up collaboration:\n\nWe observed  the field of the Swift GRB 110112A (Stamatikos  et al., GCN \n11553)  with AZT-11 telescope of CrAO starting on Jan. 12 (UT) 16:35. In the \nenhanced Swift-XRT position  (Evanset al., GCN 11556) we do not detect \noptical afterglow (Xin et al., GCN 11554) up to R=20.6. The photometry is \nbased on the\nUSNO B1.0 star 1164-0563915 (21 59 45.42 +26 27 18.3) assuming R=15.64.\n\nT0+      Filter,   Exposure, mag.\n(mid, d)              (s)\n\n0.52955  R 13x180  R   >20.6",
  "circularId": 11589,
  "createdOn": 1295559427000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 110112A: optical upper limit",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 110112A"
}