{
  "bibcode": "2010GCN.11183....1G",
  "body": "C. Guidorzi (U. Ferrara), A. Melandri (INAF-OAB),\nN. Tanvir (U. Leicester) on behalf of a large collaboration report:\n\nThe 2-m Faulkes Telescope South automatically began observing\nGRB 100902A (Sakamoto et al. GCN Circ. 11181) on September 02,\n19:34:38 UT, 164 seconds from the GRB trigger time and during\nthe major gamma-ray spikes (GCN 11181).\nWithin the XRT error circle we do not find any source\ndown to the following limiting magnitudes:\n\nMid time from      Exposure    Filter   Limiting Magnitude\ntrigger (s)           (s)\n------------------------------------------------------------\n169                   10          R > 15.6\n203                 3x10          R > 16.0\n------------------------------------------------------------\n\nCalibration is against some nearby USNOB-1 stars.\nThe relatively poor limits are due to the vicinity to the Moon.",
  "circularId": 11183,
  "createdOn": 1283459291000,
  "email": "guidorzi@fe.infn.it",
  "subject": "GRB 100902A: Faulkes Telescope South observations",
  "submitter": "Cristiano Guidorzi at Ferrara U,Italy  <guidorzi@fe.infn.it>",
  "eventId": "GRB 100902A"
}