{
  "bibcode": "2010GCN.10818....1S",
  "body": "D. Shakhovkoy, V. Rumyantsev (CrAO), A. Pozanenko (IKI)  report on behalf of\nlarger GRB  follow-up collaboration:\n\nWe observed the field of the Swift GRB 100526A (Vetere et al. GCN  10797)\nwith AZT-11 telescope of CrAO between (UT) May 26  21:34 -- 22:36 under\nmean  seeing of about 3 arcsec. No objects is detected in enhanced XRT error\ncircle (Beardmore et al. GCN 10800).\n\nThe upper limit in a stacked image based on USNO-B1.0 star  1156-0223950 \n(assuming R=18.44)  is following:\n\nT0+      Filter,   Exposure, mag.\n(mid, d)              (s)\n\n0.2354   R       20x180    > 21.4",
  "circularId": 10818,
  "createdOn": 1275423434000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 100526A: optical upper limit",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 100526A"
}