{
  "bibcode": "2012GCN.13747....1G",
  "body": "C. Guidorzi (U. Ferrara), A. Gomboc (U. Ljubljana),\nF. Virgili (LJMU) on behalf of a large collaboration report:\n\nThe 2-m Faulkes Telescope North automatically began observing\nGRB 120911A (Cannizzo et al. GCN Circ. 13744) on September 11 2012,\n08:17:24 UT corresponding to ~70 minutes post burst trigger\nwith BVRi' filters. Within the XRT error circle (Campana et al.\nGCN Circ. 13746), we don't see any uncatalogued object down\nto the following limits:\n\nMid time from       Exposure        Filter       Limit\nGRB (hr)            (s)\n----------------------------------------------------------\n1.37                240             R > 20.9\n1.45                220             i' > 21.2\n----------------------------------------------------------\n\nWe note the presence of a faint, uncatalogued object\nin the i' band, lying at 5.8\" from the XRT centroid, with\na magnitude of i=21.0 +- 0.2 (calibrated against USNOB1 nearby\nstars) at the following position:\n\nRA(J2000) =  23:51:56.06\nDec(J2000)= +63:05:49.2\n\nwith an error of 0.6\". Presently we cannot make any statement\nabout its temporal behaviour.",
  "circularId": 13747,
  "createdOn": 1347364822000,
  "email": "guidorzi@fe.infn.it",
  "subject": "GRB 120911A: Faulkes Telescope North observations",
  "submitter": "Cristiano Guidorzi at Ferrara U,Italy  <guidorzi@fe.infn.it>",
  "eventId": "GRB 120911A"
}