{
  "bibcode": "2010GCN.11266....1V",
  "body": "A. Volnova (SAI MSU),  A. Pozanenko (IKI),  M. Ibrahimov (MAO), B. Hafizov \n(MAO), B. Satovski (Astrotel)  report on behalf of  larger GRB  follow-up \ncollaboration:\n\nWe observed  the field of the Swift GRB 100901A (Immler  et al., GCN 11159) \nwith AZT-22 telescope of Maidanak observatory starting  Sep. 7 (UT) \n20:32:06. We clearly detect the afterglow (Immler  et al., GCN 11159 and \nother follow-up ground based observations) in R-filter. The photometry of a \nstacked image is based on the same reference SDSS-DR7 stars used by our \ncollaboration previously (GCNs 11191, 11200, 11255):\n\nT0+      Filter,   Exposure, mag.\n(mid, d)              (s)\n\n6.2977  R        4*300    22.05+/-0.09\n\nThe photometry above confirms suggested break (Kann et al, GCN 11246) in a \nlight curve of the afterglow.",
  "circularId": 11266,
  "createdOn": 1284083283000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 100901A: optical observation in Maidanak, break confirmation",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 100901A"
}