{
  "bibcode": "2011GCN.12005....1P",
  "body": "E. Pavlenko (CraO), A. Volnova (SAI MSU), A. Baklanov (CrAO), A. Pozanenko \n(IKI)  on behalf of  larger GRB follow up collaboration report:\n\nWe observed the field of GRB 110503A  (Stamatikos  et al. GCN  11991) with \nShajn telescope of CrAO  observatory  on May. 3 starting (UT) 23:56. We took \nseveral frames with exposure of 60s in R-band. The afterglow (Stamatikos  et \nal. GCN  11991)  is well detected  in each single frame.  A preliminary \nphotometry is based on the USNO B1.0 star  1421-0227752  (08:51:10.01 \n+52:11:04.75)    assuming R=16.819   (Updike et al. GCN 12001):\n\nT0+         Filter,   Exposure, mag.\n(mid, d)               (s)\n\n0.26433    R         60       19.00 +/- 0.08\n0.27991    R         60       19.24 +/- 0.18\n0.29450    R         60       19.22 +/- 0.08",
  "circularId": 12005,
  "createdOn": 1304557282000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 110503A: optical observation in CrAO",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 110503A"
}