{
  "bibcode": "2011GCN.12617....1V",
  "body": "A. Volnova (SAI MSU), M. Ibrahimov (UBAI), A. Pozanenko (IKI) report on \nbehalf of larger GRB  follow-up collaboration:\n\nWe update results of Maidanak observations preliminary reported in GCN \n12380.\nWe observed  the field of the Swift GRB 110921A (Baumgartner  et al., GCN \n12373) with AZT-22 telescope of Maidanak observatory starting  Sep. 21 (UT) \n17:45:30.  Several images in R-filter of 300 s exposure were taken under \nmoderate seeing (FWHM ~ 1.7\"). We detect a source in coordinates (J2000) 19 \n36 23.363 +36 19 43.02 with uncertainty of 0.2\" and brightness of R = 22.0 \n+/- 0.15. This source is rather consistent  both in position and brightness, \nwith the SDSS object   (Xu et al. GCN 12385; Vreeswijk  et al. GCN 12387). \nSo we do not detect afterglow reported by (Xu et al. GCN 12385; Breeveld et \nal. GCN 12389; Tokoyoda et al. GCN 12410; Volnova et al. GCN 12438).\n\nTstart UT, T0+,       Filter, Exposure, OT, Upper Limit (3 sigma)\n                (mid, d)            (s)\n17:45:30  0.17895  R       8*300        n/d   22.5",
  "circularId": 12617,
  "createdOn": 1323031827000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 110921A: optical observations in Maidanak observatory",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 110921A"
}